Semantic Search in E-Discovery
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Semantic Search in E-Discovery David Graus Research on the application of text mining and information retrieval for fact finding in regulatory investigations
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Transcript of Semantic Search in E-Discovery
Semantic Search in E-Discovery
David Graus
Research on the application of text mining and information retrieval for fact finding in regulatory investigations
Semantic search in e-discovery
Who’s Involved?
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Prof. dr. Maarten de RijkeDirector Intelligent Systems Lab, UvA
David van Dijk, MSc.Researcher E-Discovery, CREATE-IT applied research
Dr. Hans HenselerLector E-Discovery, CREATE-IT applied research
Menno Israël, MSc.Teamleader Knowledge and Expertise Centre for Intelligent Data Analysis (Kecida), NFI
David Graus, MSc.PhD Candidate, Semantic Search in E-Discovery, UvA
Zhaochun Ren, MSc.PhD Candidate, Semantic Search in E-Discovery, UvA
Semantic search in e-discovery
Introduction
£ Semantic Search in E-Discovery
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Semantic search in e-discovery
What is
£ Semantic Search in E-Discovery� retrieving and securing digital forensic evidence
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Semantic search in e-discovery
What is
£ Semantic Search in E-Discovery
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Semantic search in e-discovery
What is
£ Semantic Search in E-Discovery� retrieving and securing digital forensic evidence� from emails, forums, etc...
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Semantic search in e-discovery
What is
£ Semantic Search in e-Discovery
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Semantic search in e-discovery
Challenge
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¢ Finding out who knew what, from whom, and when
Semantic search in e-discovery
Challenge
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¢ Finding out who knew what, from whom, and when¢ Generic search is not the answer
Semantic search in e-discovery
Finding evidence for E-Discovery
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¢ We don’t know what we’re looking for¢ What we’re looking for might be deliberately hidden¢ Communication might be very domain-specific,
contextualized or incomplete
Semantic search in e-discovery
Task
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¢ Retrieve all relevant traces¢ Highly iterative search process¢ Support (re)formulating questions and hypotheses
Semantic search in e-discovery
How do we approach this?
¢ Two subprojects:£ Information Retrieval
� Finding material of unstructured nature from large collections£ Information Extraction/Text Mining
� Discovering patterns in data
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Semantic search in e-discovery
How do we approach this?
¢ Information Retrieval£ Integrating structure/context of data in retrieval models
� Capturing forum and email context� Conversational search
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Semantic search in e-discovery
How do we approach this?
¢ Information Extraction/Text Mining£ Extracting structured knowledge from user generated
content� Semantic pre-processing� Social network inference� Information maps
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Semantic search in e-discovery
How do we approach this?
¢ Information Retrieval <-> Information Extraction
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Semantic search in e-discovery
Current work (first steps)
¢ Information Retrieval£ Twitter Mining (as a form of conversational search)
¢ Information Extraction/Text Mining£ Entity linking (for semantic document enrichment)
¢ TREC/TAC benchmarking events£ TREC Legal Track 2011 (2013?)
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Semantic search in e-discovery
Contributions
¢ xTAS: Open source text analysis toolkit¢ iColumbo: Internet monitoring framework¢ Used by:
£ Internet Recherche Netwerk£ Koninklijke Bibliotheek£ Beeld en Geluid£ ... You?
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