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Research at Open Systems Lab IIIT Bangalore

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Presentation on theme: "Research at Open Systems Lab IIIT Bangalore"— Presentation transcript:

1 Research at Open Systems Lab IIIT Bangalore http://osl.iiitb.ac.in/

2 Broad Areas Co-occurrence analyses
Multi-agent approaches for (database related) optimization

3 Co-occurrence Analyses
Using models of semantic memory from cognitive psychology to extract latent semantics in document collections Graphs depicting higher-order inferences Co-occurrence (labeled) graph Document corpus

4 Co-occurrence graph Captures pair-wise co-occurrences across different typed entities Entity types Nouns (Person, Institution, Place, Country, etc.) Tags URLs Phrases

5 Higher-order inferences
Topic anchors Topic markers Synonymy Semantic siblings Topic induction

6 Higher-order inferences
Co-citations as URL co-occurrences Contrasting co-citation patterns between Web pages and Wikipedia Co-citation as hyperlink endorsements Co-citation as knowledge aggregation Co-citation as conditional probability of topical relevance

7 Dataset Co-occurrence graph built from a complete Wikipedia dump
Co-citation graph built from a crawl of over 10 million pages and over 85 million hyperlinks

8 Some results Topical anchor experiments

9 Some results: web co-citation graph

10 Some results: endorsed hyperlink graph

11 Some questions Innate macro characteristics of co-occurrence graphs
Concept formation from instances of co-occurrences Multipartite clustering

12 Multi-agent optimization
Query optimization in stream grids Distributed index design under arbitrary constraints (churn, load, symmetry, etc.)

13 Thank you


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