We detail the procedures used to create the Omega base ontology and to merge in new ontological information, such as custom ontologies derived from glossaries and instances obtained by data mining. We survey some of the applications in which we have applied Omega. We highlight the tools used and characteristics of the Lisp environment which facilitate the development and maintenance of the ontological structure. We conclude by discussing current and future work.

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The graph-based SPEAR algorithm (Spamming-resistant Expertise Analysis and Ranking) is a new technique to measure the expertise of users by analyzing their activities.

In linear algebra, the singular value decomposition (SVD) is an important factorization of a rectangular real or complex matrix, with many applications in signal processing and statistics. Applications which employ the SVD include computing the pseudoinverse, least squares fitting of data, matrix approximation, and determining the rank, range and null space of a matrix.

if we can’t understand our own preferences, can computers really be any better at it? The contest has galvanized nerds around the world.

We introduce an interactive classifier construction system, CVizT, in which the entire process is visualized based on a multidimensional visualization technique, Table Lens. The CVizT system is a fully interactive approach. The appropriate visualization-based interaction capabilities are provided for the user to include human perception into the construction process. Our experiments with data sets from the UCI repository demonstrates that the CVizT system is straightforward and easily learned. The user’s preference and domain knowledge can also be integrated into the construction process.

Web-graph compression, Web-graph analysis, Indexing of large document collections, Automatic generation of software from conceptual models, High-performance parallel web crawling, Computability on the reals, Theory of anonymous networks, Self-stabilizing

Reality Mining defines the collection of machine-sensed environmental data pertaining to human social behavior.

Yahoo Research is going in interesting directions with datamining the relationship between geo and folksonomic tags.

Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. Created and updated by the United States National Library of Medicine (NLM), it is used by th

captionswap.com is a multilingual resource for anyone

CNTS is a research center of the Department of Linguistics of the University of Antwerp (UA) in Antwerp, Belgium, engaged in research in Dutch linguistics, (computational) psycholinguistics and language technology.