abduction aboutness agrippa algorithm analysis ann ar-index artificial arts belief-revision betweenness biology boolean bow-tie bradford brocade categorization category-theory centrality citation citeulike classification clustering co-authorship cognition collaboration compactness complex-systems concept concept-map conceptual-blending conceptual-graph conceptual-spaces corona deduction density diameter digg digital-library discovery domain-analysis erdos-number evolution extraction facets fca folksonomy frames frbr fuzzy-sets g-index gis graph hierarchy hirsch-index html hypermedia hypertext iconicity image impact-factor indexing indicators induction inequality information information-behavior information-retrieval information-science information-seeking information-system information-theory informetrics intelligence internet knowledge knowledge-discovery knowledge-organization knowledge-representation kohonen language lattices library library20 linguistics logic long-tail lorenz-curve lsa lsi markup math memory metadata metaphor metonymy microformats multisom networks nlp ontology open-access open-source order-theory owl pagerank percolation philosophy polysemy power-law pragmatics prototypicality proximity psychology q-measure query rdf rdfa rdf-schema representation rest r-index science semantic-association semantic-gap semantics semweb serendipity shortest-path similarity small-world sna social social-bookmarking software som sparql structural-hole symbol-grounding taxonomy technology text-encoding thesaurus time-series topic-map topology trails triplestore visualization vm web web20 webometrics wiki wordnet xml