robertogreco + statistics   378

Now I Understand Why Bill Gates Didn’t Want The Value-Added Data Made Public « GFBrandenburg's Blog
"In any introductory statistics course, you learn that a graph like the one below is a textbook case of “no correlation”. I had Excel draw a line of best fit anyway, and calculate an r-squared correlation coefficient. Its value? 0.057 — once again, just about as close to zero correlation as you are ever going to find in the real world.

In plain English, what that means is that there is essentially no such thing as a teacher who is consistently wonderful (or awful) on this extremely complicated measurement scheme. How teacher X does one year in “value-added” in no way allows anybody to predict how teacher X will do the next year. They could do much worse, they could do much better, they could do about the same.

Even I find this to be an amazing revelation. What about you?

And to think that I’m not making any of this up. (unlike Michelle Rhee, who loves to invent statistics and “facts”.)"
publicschools  education  politics  lies  policy  correlation  statistics  learning  teaching  michellerhee  valueadded  schools  nyc  2012  via:tom.hoffman  billgates  from delicious
12 weeks ago by robertogreco
Squishy Not Slick - this has something to do with teaching (pt. 10)
“What it means to be human is to bring up your children in safety, educate them, keep them healthy, teach them how to care for themselves and others, allow them to develop in their own way among adults who are sane and responsible, who know the value of the world and not its economic potential. It means art, it means time, it means all the invisibles never counted by the GDP and the census figures. It means knowing that life has an inside as well as an outside.” ― Jeanette Winterson, The Stone Gods

[Also here with Louis CK photo: http://lukescommonplacebook.tumblr.com/post/17291552677/slaughterhouse90210-what-it-means-to-be-human ]
values  purpose  humanism  human  learning  children  cv  living  slow  time  measurement  statistics  leisure  leisurearts  art  thestonegods  deschooling  unschooling  education  parenting  parents  jeanettewinterson  immeasurables  economics  gdp  well-being  life  from delicious
february 2012 by robertogreco
simple tumblr stats
"This tool tells you about your tumblr style using charts and graphs."

[See also: http://www.studiomoh.com/fun/tumblrbestof/ ]
statistics  analytics  tumblr  from delicious
january 2012 by robertogreco
BBC Dimensions: How Many Really?
"How Many Really? compares the number of people involved in key historical events or situations to the people you know through Facebook or Twitter. You can also add your own numbers — for example, the amount of students in your class.<br />
<br />
Choose a story to get started."
berg  berglondon  bbc  comparison  history  visualization  data  statistics  numbers  scale  howmanyreally?  has:for  from delicious
september 2011 by robertogreco
How to Fix Our Math Education - NYTimes.com
"Imagine replacing the sequence of algebra, geometry and calculus with a sequence of finance, data and basic engineering. In the finance course, students would learn the exponential function, use formulas in spreadsheets and study the budgets of people, companies and governments. In the data course, students would gather their own data sets and learn how, in fields as diverse as sports and medicine, larger samples give better estimates of averages. In the basic engineering course, students would learn the workings of engines, sound waves, TV signals and computers. Science and math were originally discovered together, and they are best learned together now."
education  math  mathematics  curriculum  solgarfunkel  davidmumford  2011  learning  problemsolving  realworldproblems  statistics  finance  science  engineering  from delicious
august 2011 by robertogreco
State Of The Internet 2011
"The Internet is a strange, huge beast. It is getting bigger, faster and more mobile each day. Ferocious social networks fight each other to be on top and gain more of our attention and personal information. An entire economy is generated from our browsing habits.This is the face of the Internet now."
internet  visualization  statistics  socialmedia  interactive  online  web  dashboard  2011  from delicious
july 2011 by robertogreco
The Dangers of Bread
"Well, I've done a little research, and what I've discovered should make anyone think twice....<br />
<br />
1. More than 98 percent of convicted felons are bread eaters.<br />
2. Fully HALF of all children who grow up in bread-consuming households score below average on standardized tests.<br />
3. In the 18th century, when virtually all bread was baked in the home, the average life expectancy was less than 50 years; infant mortality rates were unacceptably high; many women died in childbirth; and diseases such as typhoid, yellow fever and influenza ravaged whole nations.<br />
4. More than 90 percent of violent crimes are committed within 24 hours of eating bread.<br />
5. Bread is made from a substance called "dough." It has been proven that as little as one pound of dough can be used to suffocate a mouse. The average American eats more bread than that in one month!<br />
6. Primitive tribal societies that have no bread exhibit a low occurrence of cancer, Alzheimer's, Parkinson's disease and osteoporosis…"
humor  food  politics  science  research  bread  bias  classideas  via:lukeneff  statistics  context  fear  from delicious
july 2011 by robertogreco
Controversy over the Christakis-Fowler findings on the contagion of obesity — The Monkey Cage
"To return to Christakis and Fowler: I’d be interested to see their reply to the criticisms of Lyons and others. Perhaps they’ll simply step back a few paces and say that the Framingham data are sparse, that they’ve found some interesting patterns that they hope will inspire further study in other contexts.<br />
<br />
After all, even if the Framingham results were unambiguously statistically significant, robust to reasonable models of measurement error, and had a clean identification strategy—even then, it’s just one group of people. In that sense, the debate about Christakis and Fowler’s particular claims, interesting and (methodologically) important as it is, is only part of a larger story of personal networks, health, and behavior. I hope that Lyons’s article and any responses by Christakis, Fowler, and others will be helpful in designing and analyzing future studies and in piecing together the big picture."
2011  nicholaschristakis  jamesfowler  statistics  socialscience  research  data  controversy  obesity  math  from delicious
july 2011 by robertogreco
Social contagions debunked: Reports of infectious obesity and divorce were grossly overstated. - By Dave Johns - Slate Magazine [Previously: http://www.slate.com/id/2250102/pagenum/all/ ]
"But just because contagion is important in one context doesn't mean something like obesity spreads like a virus—much less one that can infect someone as remote from you as your son's best friend's mother. (For the record, I & my best friend's mother will eat our hats if it turns out to be true, as Christakis & Fowler claim, that loneliness is infectious, too.) Yes, we influence each other all the time, in how we talk & how we dress & what kinds of screwball videos we watch on the Internet. But careful studies of our social networks reveal what may be a more powerful & pervasive effect: We tend to form ties w/ the people who are most like us to begin with. The mother who blames her son's boozebag friends for his wild behavior must face up to the fact that he prefers the fast crowd in the first place. We are all connected, yes, but the way those links get made could be the most important part of the story." [via: http://mindhacks.com/2011/07/05/doubts-about-social-contagion/ ]
contagion  socialcontagion  jamesfowler  nicholaschristakis  rosemcdermott  statistics  mathematics  research  publishing  socialscience  socialnetworking  socialnetworks  evidence  sciencejournalism  journalism  politics  policy  science  peerreview  media  2011  obesity  behavior  divorce  davejohns  from delicious
july 2011 by robertogreco
You Can’t Read Everything - The Rumpus.net
“I had gone through and thought about the number of books you could conceivably read in a year, for example. And then if you extrapolate it out over your lifetime, how many can you reasonably read? And it got me thinking about how vast the world of books is, and how small what you will ever take in actually is. And it becomes a sort of overwhelming thought when you realize that no matter how hard you try, no matter how smart you are, no matter how much you love to read – as I put it in the piece, statistically speaking, you’re going to die having missed almost everything.”<br />
<br />
[via: http://jslr.tumblr.com/post/7205844487/i-had-gone-through-and-thought-about-the-number ]
reading  limits  human  scale  books  insignificance  antilibraries  life  wisdomofcrowds  statistics  lindaholmes  slow  patience  knowledge  from delicious
july 2011 by robertogreco
The National Atlas of the United States of America- Perry-Castañeda Map Collection - UT Library Online
"The National Atlas of the United States of America (1970)" [Always love a jaunt through the UT map library]
via:joguldi  maps  mapping  1970  us  demographics  data  statistics  history  government  from delicious
july 2011 by robertogreco
Real-World Math - storify.com
"Hey, kids! Ever wonder how math is done in the real world? This is the way math is done in the real world."<br />
<br />
Storify that I put together to document a conversation on Twitter about a specific math problems that Diana Kimball asked for help with.
math  mathematics  realworld  cv  storytelling  storify  collaboration  twitter  2011  timcarmody  robinsloan  dianakimball  games  boardgames  problemsolving  statistics  probability  conversation  from delicious
july 2011 by robertogreco
Borderland › Hearts and Minds
"I am done caring about reformist nonsense. At staff meeting…discussing AimsWeb Data…how many students in each grade are below proficient, at risk, proficient based on how well they handled oral 1-minute timed reading…disgusting display of a brain-dead method…We were asked to say what we planned to do…When it was my turn, I said I’d be going with the happiness plan. What’s that? It’s getting the kids to enjoy reading so that they do it on their own. How does it work? Easy. Give them choices & time to read every day, & then celebrate their accomplishments. I got a round of applause. Kind of sad, really, when I think about what that might mean."<br />
<br />
"I’ve seen enough “data”. Next year my classroom is going to be about creativity, projects, & having fun w/ ideas. The way I look at it now, every year may be my last, & I don’t want to go out playing a numbers game that was rigged against me & my students from the start. Rigidly applied standards will fail the kids; that’s not my job."
dougnoon  teaching  reading  creativity  well-being  resistance  pedagogy  2011  data  testing  standardizedtesting  poverty  theprivateeye  standards  standardization  numbersgame  statistics  schools  policy  reform  schoolreform  arneduncan  barackobama  rttt  nclb  from delicious
june 2011 by robertogreco
Obama at the ‘Miracle In Memphis’ | Gary Rubinstein's TFA Blog
"I hate to be a party pooper. But when the party is one that propagates the myth that education is where it is in this country because there are too many lazy teacher and, as proof, point to miracle schools whose only difference from the failing local school is the hard-working teachers, then I guess I’ll poop away. In reality, there’s a lot more to improving ‘graduation rates’ than that including, as I’ll demonstrate, some creative defining of ‘graduation rate’ and also some external factors that enable a school to rid themselves of the students that bring down that rate.<br />
<br />
When I heard about the miracle, I did some searching which took me to the official Tennessee Department of Education Report Card for that school On the page describing the graduation rates, I saw something unusual."
dropoutrates  schools  policy  politics  barackobama  arneduncan  miracleschools  education  graduationrates  2011  statistics  teaching  learning  from delicious
june 2011 by robertogreco
Of Data Scientists, Big Data, the City and Dancers « Rev Dan Catt's Blog
"Lefebvre…talks about rhythm of cities…flow of people, morning coffee routine, lunchtime decisions…

How people shape the city, the pulse as agents gather together to form a temporary autonomous zone before collapsing back to being shaped by the city. To be not just in the city, but of the city.

I’m not a fan of cities…can’t design for cities as I don’t understand them.

Lefebvre’s writing suggests that to analyze a city you need to have been consum/mat/ed by it.

…same as Big Data. You can’t have someone who’s a “Data Scientist” just turn up & apply tools, clusters & statistics…haven’t been in-it enough…can’t have someone who’s w/in company, understands & feels flow of data everyday, unless…they know how to separate themselves…get outside. When people grow w/ a company, love it, understand everything that it could be, getting outside it is a hard won skill. “Scientist” needs to be able to remove self & apply clear analytical skill, but w/ fundamental understanding of subject."
revdancatt  cities  fata  henrilefebvre  understanding  urban  urbanism  empathy  objectivity  bigdata  datascience  statistics  programming  2011  from delicious
june 2011 by robertogreco
Desire Lines: Let Your Audience Shape Your Design | Van SEO Design
"As designers we want to control how people perceive our designs and keep people on our predefined path. We create lines for the eye to follow so they notice what we want them to notice. We direct them to the actions we want to them to take. We create navigation through our sites for how we expect people to travel our web pages.

And then along come real people who use our sites and view our pages, however they like. These people are creating desire lines through our websites. We can try our best to force them to do it our way, but they won’t. They’ll either do it their way or leave. A better approach would be to understand where the desire lines in our sites being created and adjust our designs to those desire lines."
design  desirelines  elephantpaths  deschooling  control  use  users  web  reading  statistics  ui  accommodations  from delicious
june 2011 by robertogreco
Understanding San Diego's Crime Drop - voiceofsandiego.org: Data-drive
"In San Diego, the number of violent crimes — murder, rape, robbery and aggravated assault — dropped 5.3 percent from the previous year and the number of property crimes — burglary, theft and vehicle theft — dropped 4.6 percent. (Nationwide, violent crime dropped 5.5 percent and property crimes were down 2.8 percent.)<br />
<br />
San Diego stood out in at least one crime category, though. Police reported 29 murders last year, a 29 percent drop from the previous year and the lowest number since 1963. It was a steeper drop than all other major cities and far greater than the nationwide drop, 4.4 percent.<br />
<br />
San Diego also continued to have one of the lowest violent crime rates among major cities, with 428 crimes per 100,000 residents. Only San Jose had a lower rate, with 331 crimes per capita. By comparison, the average for major cities was 700 crimes per capita."
sandiego  crime  data  statistics  2011  from delicious
may 2011 by robertogreco
On The Media: Transcript of "The 'Decline Effect' and Scientific Truth" (May 13, 2011)
[Great story told with Jad Abumrad, Robert Krulwich, and Jonah Lehrer]<br />
<br />
"Surprising and exciting scientific findings capture our attention and captivate the press. But what if, at some point after a finding has been soundly established, it starts to disappear? In a special collaboration with Radiolab we look at the 'decline effect' when more data tells us less about scientific truth."<br />
<br />
[From the "Data Show": http://www.onthemedia.org/episodes/2011/05/13 See also "The Personal Data Revolution" http://www.onthemedia.org/transcripts/2011/05/13/01 AND "Data Journalism" http://www.onthemedia.org/transcripts/2011/05/13/02 AND "Two Cautionary Data Tales" http://www.onthemedia.org/transcripts/2011/05/13/03 ]<br />
<br />
[See also http://en.wikipedia.org/wiki/Observer_effect ]
declineeffect  2011  radiolab  jonahlehrer  jadabumrad  robertkrulwich  psychology  observation  science  research  statistics  data  reality  truth  perception  placebos  observereffect  from delicious
may 2011 by robertogreco
Guernica / The Straight Dope — Bill Moyers interviews David Simon, April 2011
"David Simon would be happy to find out that The Wire was hyperbolic and ridiculous, and that the “American Century” is still to come. But he's not betting on it. An excerpt from Bill Moyers Journal: The Conversation Continues, forthcoming from The New Press."<br />
<br />
"I am very cynical about institutions and their willingness to address themselves to reform. I am not cynical when it comes to individuals and people. And I think the reason The Wire is watchable, even tolerable, to viewers is that it has great affection for individuals. It’s not misanthropic in any way. It has great affection for those people, particularly when they stand up on their hind legs and say, “I will not lie anymore. I am actually going to fight for what I perceive to be some shard of truth.”"
davidsimon  billmoyers  toread  interviews  thewire  tv  television  politics  drugs  cities  baltimore  2011  government  policy  society  economics  journalism  statistics  progress  crime  lawenforcement  criminology  urban  urbanism  laissezfaire  markets  marketfundamentalism  decriminalization  underclass  class  race  incarceration  institutions  cynicism  reform  change  individualism  people  human  humancondition  humans  democracy  control  corruption  mexico  us  ideology  from delicious
april 2011 by robertogreco
The Really Smart Phone - WSJ.com
"Researchers are harvesting a wealth of intimate detail from our cellphone data, uncovering the hidden patterns of our social lives, travels, risk of disease—even our political views."
mobile  phones  cellphones  data  statistics  predictablity  health  predictions  research  2011  politics  policy  movement  travel  behavior  society  psychology  socialcontagion  robertleehotz  mit  alexpentland  humandynamiclaboratory  sms  texting  twitter  communication  happiness  smartphones  socialnetworks  from delicious
april 2011 by robertogreco
Rethinking Evaluation Metrics in Light of Flickr Commons | conference.archimuse.com
"cultural heritage institutions, including archives, libraries, and museums, have been placing their collections in Web spaces designed for collaboration and communication. Flickr Commons is one example of a highly visible space where cultural heritage institutions have partnered w/ a popular social networking site to provide greater discovery to, access of, & opportunities to interact w/ image collections on a large scale. It is important to understand how to measure the impact of these kinds of projects. Traditional metrics, including visit counts, tell only part of the story: much more nuanced information is often found in comments, notes, tags, & other info contributed by the user community. This paper will examine how several institutions on Flickr Commons - LoC, Powerhouse Museum, Smithsonian, NYPL, & Cornell U Library - are navigating the concept of evaluation in an emerging arena where compelling statistics are often qualitative, difficult to gather, & ever-changing.
flickr  metrics  socialmedia  statistics  museums  flickrcommons  commons  from delicious
april 2011 by robertogreco
The 12 States of America - The Atlantic
"Since 1980, income inequality has fractured the nation. Click each icon to see each of the dozen states, which counties belong to them and how median income has changed over the last 30 years."
economics  culture  us  maps  mapping  statistics  income  incomegap  diversity  disparity  inequality  1980  2010  classideas  from delicious
march 2011 by robertogreco
How big is the problem? | The wrong cure | False Economy
"No country can run huge deficits every year for ever.<br />
<br />
The bigger the national debt that builds up, the more expensive it is to meet interest payments. At some point it becomes more difficult and more expensive for governments to borrow extra money because people become reluctant to lend to them.<br />
<br />
But we are nowhere near that point in the UK. Let's look more closely at the national debt. "
uk  debt  nationaldebt  2011  infographics  charts  economics  statistics  policy  from delicious
march 2011 by robertogreco
Forgotten Infographic Masterpieces by W.E.B. DuBois's Students Show Black History | Co.Design
"W.E.B. DuBois's sociology students hand-drew these charts plotting the plight of African Americans in the decades after the Civil War."
history  visualization  racism  statistics  infographics  webdubois  reconstruction  civilwar  classideas  from delicious
february 2011 by robertogreco
How much time is wasted in your meetings?
Do you feel like your life is wasted in useless meetings? No worries, just look around, count the number of people, guess the average salary (doesn't have to be that precise), type in the values and turn your laptop screen towards everyone else. For added effect, put it on the projector.
money  statistics  counter  meetings  wastedtime  wastedmoney  calculator  humor  from delicious
february 2011 by robertogreco
Junar · Discovering Data
"Junar let's you extract data from the web, and keep it updated as a Data Feed.<br />
<br />
Track the data you care about, and arrange it into your own Dashboard. See our demo!<br />
<br />
And the most important thing: it's for free."
junar  chile  argentina  onlinetoolkit  data  extraction  dataextraction  web  tracking  live  statistics  from delicious
february 2011 by robertogreco
Per Square Mile
"Per Square Mile is a blog about density. It’s about what happens when people live like packed sardines. It’s also about what happens when people live so far apart they can go days without seeing another soul. It’s about living amongst trees and prairies, and living in places miles away from them. It’s about the trees and the prairies, too. And lakes and streams and animals and insects. In short, this is a blog about density of all types."
maps  geography  urbanism  planning  density  mapping  infographics  statistics  demographics  classideas  sustainability  from delicious
february 2011 by robertogreco
What’s wrong with bean counting? - Steve Denning - RETHINK - Forbes
"It’s important to note what’s wrong with bean counting. It’s not that counting is wrong. Counting is good. We desperately need to know what’s working and what isn’t.<br />
The problem with the bean counters is what’s being counted. It’s a focus on solely counting things, rather than dimensions of life related to people. It’s perfectly possible to measure dimensions like client delight and employee satisfaction, but the bean counters–and 20th Century business–focused on counting the beans.<br />
Bean counting is the consequence of a view of the world as consisting of “things” to be manipulated, rather than people to be interacted with and conversed with and responded to.<br />
The new economics counts the people dimensions as well as the beans. And guess what? Even in conventional bean-counting terms, the new economics turns out to be two- to four-times more productive than traditional management…"
economics  society  change  management  administration  numbers  statistics  accounting  accountability  accountants  people  leadership  standardizedtesting  whatmatters  tunnelvision  from delicious
february 2011 by robertogreco
Caterina.net» Blog Archive » A WORD ON STATISTICS by Wislawa Szymborska
"Out of every hundred people,<br />
those who always know better:fifty-two.<br />
Unsure of every step:almost all the rest.<br />
Ready to help,if it doesn’t take long:forty-nine.<br />
Always good,because they cannot be otherwise:four — well, maybe five.<br />
Able to admire without envy:eighteen…"
poetry  statistics  wislawaszymborska  classideas  poems  numbers  empathy  from delicious
february 2011 by robertogreco
Mapping America — Census Bureau 2005-9 American Community Survey - NYTimes.com
"Browse local data from the Census Bureau's American Community Survey, based on samples from 2005 to 2009. Because these figures are based on samples, they are subject to a margin of error, particularly in places with a low population, and are best regarded as estimates."
maps  visualization  census  data  statistics  us  race  income  housing  families  education  classideas  2010  diversity  nytimes  ethnicity  demographics  from delicious
february 2011 by robertogreco
The Best Questions For A First Date « OkTrends
[I've seen many pointers to this article, but none of them mentioned this bit on religion and writing proficiency (or the simplicity/complexity correlation with politics part either). See the chart at the end of the article.]<br />
<br />
"If your date answers 'no'—i.e. is okay with bad grammar and spelling—the odds of him or her being at least moderately religious is slightly better than 2:1.<br />
As someone who is not himself a believer, I found it rather heartening that tolerance, even on something trivial like this, correlated with belief in God, although I should've figured out that religious people are okay with small mistakes. Next to intelligent design, what's a couple typos?<br />
It's also nice when two completely independent datasets corroborate each other. Last summer, we analyzed the profile text of half a million user profiles, comparing religion and writing-level. For every one of the faith-based belief systems listed, the people who were the least serious wrote at the highest level."
dating  statistics  research  relationships  religion  grammar  writing  belief  intelligence  simplicity  complexity  politics  okcupid  data  from delicious
february 2011 by robertogreco
Only 66% Use Twitter Profile Location Field as Intended, Says PARC Research Study
"From the 34% who did not provide real location information, there were a number of trends spotted. One was that the field was often used to denote appreciation for a particular celebrity. Celebrities the researchers came across here included Britney Spears, the Jonas Brothers, Jedward and, of course, topping the charts with 61 users mentioning him, Justin Bieber.<br />
Another common trend was using the location field to express a desire for keeping that information private through the use of phrasing like "not telling you," "none of your business," etc. Also frequenting this field were insults ("looking down on u people"), non-Earth locations ("outta space"), sexual content, jokes and even an expression about how much someone hated their current location. (for example, one user said he was from "redneck hell")."
twitter  privacy  geolocation  location  statistics  identity  via:migurski  from delicious
january 2011 by robertogreco
Horoscoped
"Ready? Sure? Whatever the situation or secret moment, enjoy everything a lot. Feel able to absolutely care. Expect nothing else. Keep making love. Family and friends matter. The world is life, fun, and energy. Maybe hard. Or easy. Taking exactly enough is best. Help and talk to others. Change your mind and a better mood comes along..." [via: http://kottke.org/11/01/horoscopes-all-the-same ]
infographics  visualization  statistics  astrology  psychology  from delicious
january 2011 by robertogreco
Is Mobile Affecting When We Read? « Read It Later Blog
"When a reader is given a choice about how to consume their content, a major shift in behavior occurs.  They no longer consume the majority of their content during the day, on their computer.  Instead they shift that content to prime time and onto a device better suited for consumption.<br />
<br />
Initially, it appears that the devices users prefer for reading are mobile devices, most notably the iPad.  It’s the iPad leading the jailbreak from consuming content in our desk chairs.<br />
<br />
As better mobile experiences become more accessible to more readers, this movement will continue to grow.  Readers want to consume content in a comfortable place, on their own time and mobile devices are making it possible for readers to take control once more." [via: http://www.preoccupations.org/2011/01/delicious-i.html ]
ipad  mobile  reading  statistics  research  2011  readitlater  instapaper  timeshifting  timeshiftedreading  via:preoccupations  bookmarks  bookmarking  trends  mobilecomputing  kindle  from delicious
january 2011 by robertogreco
The Joy of Stats
"Documentary which takes viewers on a rollercoaster ride through the wonderful world of statistics to explore the remarkable power thay have to change our understanding of the world, presented by superstar boffin Professor Hans Rosling, whose eye-opening, mind-expanding and funny online lectures have made him an international internet legend."
statistics  documentary  film  classideas  math  mathematics  hansrosling  history  influence  power  understanding  patternrecognition  from delicious
january 2011 by robertogreco
The Rockefeller Foundation on “the future of crowdsourced cities” « Adam Greenfield's Speedbird [Great post as Adam shutters Speedbird.]
"These are some easily-foreseeable problems w/ purely bottom-up approaches to urban informatics. None of this is to denigrate legacy of Jane Jacobs…remains personal hero & primary touchstone for my work. & none of it is to argue that there oughn’t be central role for democratic voice in development of policy, management of place & delivery of services. It’s just to signal that things might not be as clearcut as we might wish—especially those of us who have historically been energized by presence of clear (& clearly demonizable) opponent.<br />
<br />
If I’ve spent my space here calling attention to pitfalls of bottom-up approaches…because I think the promise is so self-evident…delighted to hear Anthony Townsend’s prognostication of/call for a “planet of civic laboratories,” in which getting to scale immediately is less important than a robust search of possibility space around these new technologies, & how citydwellers around world will use them in their making of place."
cities  technology  bottom-up  crowdsourcing  action  activism  datavisualization  urbancomputing  urban  urbanism  janejacobs  robertmoses  anthonytownsend  urbaninformatics  place  civiclaboratories  lcproject  possibilityspace  systems  government  democracy  policy  servicedesign  transparency  collaboration  scale  consistency  infrastructure  intervention  offloading  responsibilization  municipalities  seeclickfix  entitlement  humanintervention  moderation  laurakurgan  sarahwilliams  spatialinformation  maps  mapping  statistics  benjamindelapeña  carolcolletta  ceosforcities  rockefellerfoundation  greglindsay  lauraforlano  spatial  from delicious
december 2010 by robertogreco
Simpson's paradox - Wikipedia
"In probability and statistics, Simpson's paradox (or the Yule-Simpson effect) is an apparent paradox in which a correlation (trend) present in different groups is reversed when the groups are combined. This result is often encountered in social-science and medical-science statistics,[1] and it occurs when frequency data are hastily given causal interpretations.[2] Simpson's Paradox disappears when causal relations are brought into consideration (see Implications to Decision Making)."
statistics  math  paradox  mathematics  simpson'sparadox 
december 2010 by robertogreco
Simpson's paradox - Wikipedia
"In probability and statistics, Simpson's paradox (or the Yule-Simpson effect) is an apparent paradox in which a correlation (trend) present in different groups is reversed when the groups are combined. This result is often encountered in social-science and medical-science statistics,[1] and it occurs when frequency data are hastily given causal interpretations.[2] Simpson's Paradox disappears when causal relations are brought into consideration (see Implications to Decision Making)."
statistics  math  paradox  mathematics  simpson'sparadox  from delicious
december 2010 by robertogreco
Achievement, Performance and Statistics « The Free School Apparent
"It was mentioned at the end of the film that we are at a tipping point. But I think we have already crashed. Part of changing this diversion of balance is to reevaluate education. What does it mean to learn? How does one learn? We need to look at all the things that have been cast aside by this modern institution: play, free time, boredom, curiosity, creativity, social interaction, self motivation. These are what made the leaders of the past. Inventions come from people who get time to sit around and just think. I once read about a guy who invented a computer game by staring at his bathroom floor tiles while sitting on the toilet. Where is the space in all this racing around to get a reward that is not there?<br />
<br />
It is truly a race to nowhere. And we need to erase the blackboard and start again. We need to stop looking at the statistics, and start looking at the children."
education  learning  lcproject  charters  achievement  performance  statistics  standardizedtesting  standardization  racetonowhere  children  schools  schooliness  policy  curiosity  invention  boredom  creativity  unschooling  deschooling  self-motivation  intrinsicmotivation  from delicious
december 2010 by robertogreco
Country Studies
"This website contains the on-line versions of books previously published in hard copy by the Federal Research Division of the Library of Congress as part of the Country Studies/Area Handbook Series sponsored by the U.S. Department of the Army between 1986 and 1998. Each study offers a comprehensive description and analysis of the country or region's historical setting, geography, society, economy, political system, and foreign policy."
database  demographics  economics  countries  culture  geography  books  reference  countrystudies  studies  international  world  government  history  education  statistics  data  from delicious
november 2010 by robertogreco
Isarithmic History of the Two-Party Vote « David B. Sparks
"This animated interpretation accentuates certain phenomena: the breadth and duration of support for Roosevelt, the shift from a Democratic to a Republican South, the move from an ostensibly east-west division to the contemporary coasts-versus-heartland division, and the stability of the latter.<br />
More broadly, this video is a reminder that what constitutes “politics as usual” is always in flux, shifting sometimes abruptly. The landscape of American politics is constantly evolving, as members of the two great parties battle for electoral supremacy."
visualization  history  government  politics  geodata  elections  statistics  maps  us  mapping  classideas  republicans  democrats  two-partydominance  from delicious
november 2010 by robertogreco
What a Hundred Million Calls to 311 Reveal About New York | Magazine | Wired.com
"Whether it happens through government services such as 311, private-sector startups, open source initiatives, or, most likely, a combination of all three, it’s clear that the 21st-century city is going to be immensely more efficient at solving clear, definable problems like graffiti and transportation routes. The question is whether these platforms can also address the more subtle problems of big-city neighborhoods—the sins of omission, the holes in the urban fabric where some crucial thread is missing. After all, when people gripe about their neighborhood, it’s usually not the potholes or clogged storm drains they have in mind; it’s the fact that there isn’t a dog run nearby or a playground or a good preschool with space available. “We’re really interested in tackling things that are problems not because they’re broken but because they don’t exist,” Ashlock says."
stevenjohnson  infographics  crowdsourcing  government  mapping  maps  nyc  opendata  statistics  datavisualization  information  visualization  urbanism  urban  infographic  community  cities  data  open311  311  from delicious
november 2010 by robertogreco
Families and Work Institute
"Families and Work Institute is a nonprofit center dedicated to providing research for living in today’s changing workplace, changing family and changing community.<br />
<br />
Since the Institute was founded in 1989, our work has tackled issues in three major areas: the workforce/workplace, youth and early childhood.<br />
<br />
Families and Work Institute’s research takes on emerging issues before they crest and includes some of the most comprehensive research on the U.S. workforce available.<br />
<br />
The Institute’s work has helped change the language of debates to move the discussion forward toward more effective, and data-driven solutions, and to result in action."
worklifebalance  work  families  demographics  research  statistics  parenting  workplace  life  organization  careers  business  jobs  livework  glvo  from delicious
november 2010 by robertogreco
Cities - Radiolab
"In this hour of Radiolab, we take to the street to ask what makes cities tick.<br />
<br />
There's no scientific metric for measuring a city's personality. But step out on the sidewalk, and you can see and feel it. Two physicists explain one tidy mathematical formula that they believe holds the key to what drives a city. Yet math can't explain most of the human-scale details that make urban life unique. So we head out in search of what the numbers miss, and meet a reluctant city dweller, a man who's walked 700 feet below Manhattan, and a once-thriving community that's slipping away."
cities  radiolab  2010  math  physics  nyc  collapse  urban  urbanism  jonahlehrer  size  footfall  comparison  statistics  data  measurement  tolisten  from delicious
november 2010 by robertogreco
Global house prices: Clicks and mortar | The Economist
"The Economist has been publishing data on global house prices since 2002. The interactive tool above enables you to compare nominal and real house prices across 20 markets over time. And to get a sense of whether buying a property is becoming more or less affordable, you can also look at the changing relationships between house prices and rents, and between house prices and incomes."
housing  economics  data  us  uk  japan  international  prices  2010  property  via:cityofsound  housingbubble  graphs  statistics  charts  from delicious
october 2010 by robertogreco
Autism and HIV: when maths can be misleading - Telegraph
"Moreover, the number of people involved was small: 20 with autism, 20 without. With that small a group, it’s hard to tell whether any association that shows up is meaningful. You can train a computer using photos of the family cat, and it will calculate whichever combination of size, colour, and whisker length best detects autism in its owner. There are so many potential combinations that in all likelihood one of them will appear to perform pretty well. But try it on another bunch of people, and the odds are it will fail."
hiv  autism  statistics  math  mathematics  research  falsenegatives  accuracy  numbers  from delicious
october 2010 by robertogreco
A Website on the U.S. Trade Policy Disaster || UNSUSTAINABLE.org [via:http://twitter.com/agpublic/status/27794932144}
"The New York Times yesterday carried a major article headlined "Japan Goes from Dynamic to Disheartened." Rarely has the truth of the Japanese economy been so completely misrepresented. This article is a highly selective pastiche of isolated hard-luck stories plus spin from propagandistic sources (as close observers have long understood, the Japanese establishment pursues a policy of exaggerating Japan's weaknesses and understating its strengths, the better to stay out of Washington's sights on trade). Worse, key "facts" are indisputably wrong." [See also: http://twitter.com/agpublic/status/27795082477 http://twitter.com/agpublic/status/27795248121 AND http://twitter.com/agpublic/status/27800194594]
japan  economics  deflation  facts  nytimes  statistics  population  2010  from delicious
october 2010 by robertogreco
7 Essential Skills You Didn't Learn in College | Magazine
"1. Statistical Literacy: Making sense of today’s data-driven world.<br />
2. Post-State Diplomacy: Power and politics, sans government.<br />
3. Remix Culture: Samples, mashups, and mixes.<br />
4. Applied Cognition: The neuroscience you need.<br />
5. Writing for New Forms: Self-expression in 140 characters.<br />
6. Waste Studies: Understanding end-to-end economics.<br />
7. Domestic Tech: How to use the world as your lab."
arts  culture  education  wired  learning  lifehacks  skills  unschooling  deschooling  statistics  literacy  post-statediplomacy  diplomacy  remix  remixculture  appliedcognition  cognition  neuroscience  writing  twitter  microblogging  waste  saulgriffith  fabbing  science  diy  make  making  rogerebert  nassimtaleb  davidkilcullen  robertrauschenberg  jillboltetaylor  brain  barryschwartz  jonahlehrer  robinsloan  alexismadrigal  newliberalarts  from delicious
october 2010 by robertogreco
Third Way - Publications - Publication Content
"For many Americans, the amount they pay in taxes is larger than any purchase they make during the year, but studies show they know almost nothing about where that money goes to. This contributes to ridiculous beliefs, like the view that 20% of government spending goes to foreign aid, for example. An electorate unschooled in basic budget facts is a major obstacle to controlling the nation’s deficit, not to mention addressing a host of economic and social problems. We suggest that everyone who files a tax return receive a “taxpayer receipt.” This receipt would tell them to the penny what their taxes paid for based on the amount they paid in federal income taxes and FICA."
taxes  us  government  money  deficit  policy  education  classideas  statistics  truth  from delicious
october 2010 by robertogreco
Nic Marks: The Happy Planet Index | Video on TED.com
"Statistician Nic Marks asks why we measure a nation's success by its productivity -- instead of by the happiness and well-being of its people. He introduces the Happy Planet Index, which tracks national well-being against resource use (because a happy life doesn't have to cost the earth). Which countries rank highest in the HPI? You might be surprised."
economics  environment  happiness  statistics  sustainability  ted  nicmarks  fear  well-being  productivity  latinamerica  future  progress  finance  growth  metrics  gdp  measurement  greed  robertkennedy  from delicious
september 2010 by robertogreco
The Texas Sharpshooter Fallacy « You Are Not So Smart
"When you desire meaning, when you want things to line up, you forget about stochasticity. You are lulled by the signal. You forget about noise. With meaning, you overlook randomness, but meaning is a human construction.<br />
<br />
You have just committed the Texas Sharpshooter Fallacy.<br />
<br />
The fallacy gets its name from imagining a cowboy shooting at a barn. Over time, the side of the barn becomes riddled with holes. In some places there are lots of them, in others there are few. If the cowboy later paints a bullseye over a spot where his bullet holes clustered together it looks like he is pretty good with a gun.<br />
<br />
By painting a bullseye over a bullet hole the cowboy places artificial order over natural random chance.<br />
<br />
If you have a human brain, you do this all of the time. Picking out clusters of coincidence is a predictable malfunction of normal human logic."
randomness  fallacies  skepticism  statistics  bias  psychology  probability  logic  fallacy  coincidence  from delicious
september 2010 by robertogreco
Understanding Shakespeare / Approaches
"The goal of this approach was to provide an overview of the entire play by showing its text through a collection of the most frequently used words for each character. A scene is represented by a block of text and scaled relatively according to its number of words. Characters are ordered by appearance from left to right throughout the play. The major character’s speeches are highlighted to illustrate their amounts of spoken words as compared to the rest of the play."
shakespeare  visualization  processing  text  classideas  statistics  data  english  language  from delicious
september 2010 by robertogreco
Historical Census of Housing Tables - Home Values
"Median home values adjusted for inflation nearly quadrupled over the 60-year period since the first housing census in 1940. The median value of single-family homes in the United States rose from $30,600 in 1940 to $119,600 in 2000, after adjusting for inflation (see graph). Median home value increased in each decade of this 60-year period, rising fastest (43 percent) in the 1970s and slowest (8.2 percent) in the 1980s. Both home values adjusted and unadjusted for inflation are presented. These values refer to owner-occupied single-family housing units on less than 10 acres without a business or medical office on the property."
housing  bubble  census  data  economics  realestate  money  prices  statistics  us  from delicious
august 2010 by robertogreco
Historical Financial Statistics - The Center for Financial Stability
"Welcome to Historical Financial Statistics, a free, noncommercial data set that went online in July 2010. We aim to be a source of comprehensive, authoritative, easy-to-use macroeconomic data stretching back several centuries. Our target range of coverage is from 1492 to the present, with special emphasis on the years before 1950, which few databases cover in detail."
via:lukeneff  economics  finance  financial  history  statistics  reference  macroeconomics  politics  ngo  data  business  international 
august 2010 by robertogreco
We must fire bad doctors
Four part piece on US education policy that starts with a sarcastic bit about firing bad doctors because of the obesity problem in the US.
via:cervus  schools  policy  education  us  medicine  healthcare  society  meritpay  unions  teaching  publicschools  statistics 
july 2010 by robertogreco
David Freedman, 'Wrong' Author, on Why to Not Trust Experts - TIME [via: http://twitter.com/ebertchicago/status/17818476443]
"He begins by writing that about two-thirds of the findings published in the top medical journals are refuted within a few years. It gets worse. As much as 90% of physicians' medical knowledge has been found to be substantially or completely wrong. In fact, there is a 1 in 12 chance that a doctor's diagnosis will be so wrong that it causes the patient significant harm. And it's not just medicine. Economists have found that all studies published in economics journals are likely to be wrong. Professionally prepared tax returns are more likely to contain significant errors than self-prepared returns. Half of all newspaper articles contain at least one factual error. So why, then, do we blindly follow experts? Freedman has an idea, which he elaborates on in his book Wrong: Why Experts Keep Failing Us — and How to Know When Not to Trust Them. Freedman talked to TIME about why we believe experts, how to find good advice and why we should trust him — even though he's kind of an expert."
psychology  expertise  experts  science  research  books  certainty  trust  wrong  criticalthinking  tcsnmy  authority  blindlyfollowing  data  statistics  selffulfillingprophesies  advice  decisionmaking  judgement  brain 
july 2010 by robertogreco
Chris Heathcote: anti-mega: griotism
"So employing an internal data griot makes a lot of sense: someone who can spend the time looking for both large trends and individual needs and uses that illuminate and portend. It’s a hard job, needing a mix of skills rarely found – a smidgen of hard maths and statistics, a pinch of programming, and dessert spoons of various liberal arts. The Economist (sub required) posits them as data scientists (a position Flickr are currently looking for), but this misses the ability to ask interesting questions, and having hunches – being so immersed in the data that relevancy screams out."
chrisheathcote  last.fm  data  griot  processing  python  stories  visualization  web  storytelling  interdisciplinary  hunches  questioning  math  mathematics  relevance  patternrecognition  patterns  newliberalarts  programming  statistics  trends  griotism  datagriots 
july 2010 by robertogreco
CureTogether
"CureTogether helps people anonymously track and compare health data, to better understand their bodies, make more informed treatment decisions and contribute data to research."
activism  crowdsourcing  healthcare  medicine  opensource  education  health  curetogether  diagnosis  ehealth  aggregator  collaboration  community  socialsoftware  statistics  visualization  socialnetworking  tracking  research  patients  data 
july 2010 by robertogreco
Self-organizing map - Wikipedia
"A self-organizing map (SOM) or self-organizing feature map (SOFM) is a type of artificial neural network that is trained using unsupervised learning to produce a low-dimensional (typically two-dimensional), discretized representation of the input space of the training samples, called a map. Self-organizing maps are different from other artificial neural networks in the sense that they use a neighborhood function to preserve the topological properties of the input space."
maps  mathematics  networks  optimization  datamining  database  clustering  classification  algorithms  ai  learning  programming  research  statistics  visualization  neuralnetworks  mapping  som  self-organizingmaps 
june 2010 by robertogreco
Make the world play more - Playreport | Facebook
"Playreport is a global research project on children, families and play, initiated by IKEA. We've conducted 11,000 interviews in 25 countries. We spoke to 8,000 parents and 3,000 children aged 7-12. Discover the results, share your thoughts and ideas."
2010  childhood  psychology  statistics  facebook  ikea  play  children  research  survey 
june 2010 by robertogreco
PlotWeaver: Automating xkcd's Movie Character Interaction Graphs - information aesthetics
"After noticing the beauty behind xkcd's beautiful graphs depicting the Interactions of Movie Characters, Stanford student Vadim Ogievetsky decided to develop an online software tool that would allow him to generate visually similar looking versions. Accordingly, PlotWeaver [stanford.edu] presents an efficient and effective layout algorithm that, with the users help, generates visual results similar to these hand-crafted posters. Ultimately, his aim is to even automate the whole process from movie script or IMDB quote page to a beautiful representative visual depiction.
art  crowdsourcing  data  film  movies  statistics  visualization  xkcd  storytelling  narrative  software  programming 
june 2010 by robertogreco
Newsweek (The sums of all our fears.)
"[M]uch of what we fear today is based on hype rather than reality. ... Using the most recent US data available, we hereby present a lidt of unsettling threats and their riskier counterparts."
crime  danger  data  fear  infographic  newsweek  numbers  statistics  theft  death  risk  media  hype 
june 2010 by robertogreco
The Man Who Could Unsnarl Manhattan Traffic | Magazine
"Kheel hoped that Komanoff’s work would support a plan to offer completely free public transit. But Komanoff found that the system would still be overloaded at rush hour. Drivers had to be encouraged to travel at different times of the day. So he devised a new plan, one that charged both drivers and transit riders different rates at different times. ... Buses are always free, because the time saved when passengers aren’t fumbling for change more than makes up for the lost fare revenue. ...
architecture  cities  cars  manhattan  nyc  statistics  traffic  transit  transport  economics  data  transportation  excel  energy  complexity  subways  math  urban  taxis  buses  chaleskomanoff 
may 2010 by robertogreco
Environmental Performance Index 2010: Home
"The 2010 Environmental Performance Index (EPI) ranks 163 countries on 25 performance indicators tracked across ten policy categories covering both environmental public health and ecosystem vitality. These indicators provide a gauge at a national government scale of how close countries are to established environmental policy goals."
climate  climatechange  conservation  sustainability  pollution  environment  data  performance  measurement  maps  statistics  research  countries  graphics  rankings 
may 2010 by robertogreco
Stats applications in the App Garden « Flickr Blog
"Woo! Pro members have options for watching their view counts and stats with three applications we’ve noticed in the App Garden.
flickr  statistics  photography  tools  applications 
may 2010 by robertogreco
Clive Thompson on Why We Should Learn the Language of Data | Magazine
"There are oodles of other examples of how our inability to grasp statistics — & mother of it all, probability — makes us believe stupid things. Gamblers think their number is more likely to come up this time because it didn’t last time. Political polls are touted by media even when their samples are laughably skewed. (This issue breaks left & right...Intellectually serious skeptics of anthropogenic climate change argue that the statistical case is weak — that Al Gore & fellow travelers employ dubious techniques to sample & crunch global temperatures.)
clivethompson  statistics  literacy  politics  policy  analytics  visualization  mathematics  education  economics  data  environment  information  climate  reason  probability 
may 2010 by robertogreco
Where a Cellphone Is Still Cutting Edge - NYTimes.com
"What if, globally speaking, the iPad is not the next big thing? What if the next big thing is small, cheap and not American?
mobilephones  africa  india  technology  innovation  internet  ipad  communication  phones  mobile  statistics  trends  leapfrogging 
april 2010 by robertogreco
Nobody Has A Million Twitter Followers - Anil Dash
That leaves an inescapable conclusion. Nobody has a million followers on Twitter. And being on the suggested user list doesn't add value to a Twitter account, regardless of whether you're a regular guy like me, or one of the biggest brands in the world.
anildash  attention  celebrity  statistics  twitter  followers  fame  lists  marketing  publishing  socialmedia  community  data 
april 2010 by robertogreco
Nine Myths about Socialism in the US | CommonDreams.org
"When you look at how the US compares to these 30 countries [OECD], the hot air myths about the US government going all out towards socialism sort of disappear into thin air. Here are some examples of myths that do not hold up.
socialusm  us  disparity  wealth  statistics  health  oecd  comparison  government  politics  class  poverty  foreignaid 
april 2010 by robertogreco
The shock of the old: Welcome to the elderly age - opinion - 08 April 2010 - New Scientist
"Of all the people in human history who ever reached the age of 65, half are alive now. Meanwhile, women around the world have 1/2 as many children as their mothers. & if Japan is the model, their daughters may have 1/2 as many as they do.
age  aging  science  transhumanism  demographics  elderly  history  population  via:kottke  culture  data  statistics 
april 2010 by robertogreco
$11,000 for the First Apple Portable Computer! The Real Cost of Apple Products - What's the Big Deal?
"On the eve of Apple's iPad launch, we thought it would be interesting to see whether the cost of the iPad really is an 'unbelievable price' compared to previous Apple product launches.
visualization  infographics  inflation  infographic  statistics  apple  computers  mac  money  prices  gadgets  comparison  hardware  ipod  iphone  ipad 
april 2010 by robertogreco
Apple’s iPad, General Motors, and the shrinking middle of the consumer market : The New Yorker
"The products made by midrange companies are neither exceptional enough to justify premium prices nor cheap enough to win over value-conscious consumers. Furthermore, the squeeze is getting tighter every day. Thanks to economies of scale, products that start out mediocre often get better without getting much more expensive -- the newest Flip, for instance, shoots in high-def and has four times as much memory as the original -- so consumers can trade down without a significant drop in quality. Conversely, economies of scale also allow makers of high-end products to reduce prices without skimping on quality. A top-of-the-line iPod now features video and four times as much storage as it did six years ago, but costs a hundred and fifty dollars less. At the same time, the global market has become so huge that you can occupy a high-end niche and still sell a lot of units. Apple has just 2.2 per cent of the world cell-phone market, but that means it sold 25 million iPhones last year."
jamessurowiecky  economics  statistics  business  brands  ipad  ikea  apple  branding  globalization  marketing  markets  midrange  value  premium 
march 2010 by robertogreco
Mesofacts: slowly changing facts - Blog
"When people think of knowledge, they generally think of two sorts of facts: facts that don't change, like the height of Mount Everest or the capital of the United States, or facts that change a lot, like the weather or the stock market close. But in between there is a third timescale, with its separate category of facts: facts that change slowly, or mesofacts. This middle, or meso-, scale, of facts are the most interesting and yet the most slippery with which to be acquainted. These change over the course of a single lifetime but we tend to nonetheless view them as constant."
blogs  mesofacts  data  history  information  time  trends  statistics  graphs  visualization  charts 
march 2010 by robertogreco
10 Facts on US Health Care « rtstrategy
"1. US is only industrialized nation not to have Universal Health Care 2. Three “third-world” countries currently implementing Universal Health Care: India, South Africa, Mexico 3. Approx 45.7 million US residents have no health insurance = population of Texas, Florida, Oklahoma combined 4. US DOES provide Universal Health Care in three states: Mass, Iraq, Afghanistan 5. World Health Organization ranks US health care system as worlds highest in cost per person 6. WHO ranks US health care system as worlds 2nd most expensive in terms of proportion of income spent on health care per person (#1 = East Timor, population 1.1 million, recovering from war of independence) 7. WHO ranks US health care system as 37th in overall performance 8. WHO ranks US as 72nd in overall level of health 9. 2009 Harvard study found 44,800 excess deaths annually in US due to Americans lacking health insurance 10. Over 62% of US personal bankruptcies are attributed, at least in part, to health care costs"
us  healthcare  health  comparison  policy  universalhealthcare  world  statistics 
march 2010 by robertogreco
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