Things we deal with

• articles

• keyphrases
• concepts
• faceted-concepts (entities)

• authors
• users
• the crowd

• multi-links
  • paper-2-paper
    • by concept
    • by citation
  • concept-2-concept
  • person-2-paper
  • person-2-concept (expert)
  • people-2-paper (reviewers)
  • person-2-person

metrics

• relevance 
• proximity
• reputation / trust / credibility

tools / algorithms

• Modularity library
• paperscape.org
• PDFX for processing PDF articles
• KPEX for extracting keyphrases from articles (integrated in SW - Bio example - "Possible Concepts" column)
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