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COMP 6703 eScience Project Slide 1 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Ontology-Driven Text Mining for Digital Forensics.

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Presentation on theme: "COMP 6703 eScience Project Slide 1 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Ontology-Driven Text Mining for Digital Forensics."— Presentation transcript:

1 COMP 6703 eScience Project Slide 1 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Ontology-Driven Text Mining for Digital Forensics Supervisors: Dr. Warren Jin and Dr. Nianjun Liu Project coordinator: Dr. Peter Strazdins Student’s Name: Phan T. Son Student ID#: u4171993

2 COMP 6703 eScience Project Slide 2 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Outline Motivation Goals Performance Conclusion

3 COMP 6703 eScience Project Slide 3 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Outline Motivation Goals Performance Conclusion

4 COMP 6703 eScience Project Slide 4 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Motivation > Basic IR … mouse … … PC … … computer … …laptop… … ticket … … … PC … … … … mouse … corpus result Query: PC … PC … … computer … …laptop… … ticket … … … PC … … … ordering

5 COMP 6703 eScience Project Slide 5 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Ontology-based IR Query: PC desktop laptop notebook personal computer

6 COMP 6703 eScience Project Slide 6 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Motivation > Ontology-based IR … mouse … … PC … … computer … …laptop… … ticket … … … PC … … … … mouse … corpus result Query: PC … PC … … computer … …laptop… … ticket … … … PC … … …

7 COMP 6703 eScience Project Slide 7 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Motivation > Ontology-based IR Query: notebook -computer

8 COMP 6703 eScience Project Slide 8 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Outline Motivation Goals Performance Conclusion

9 COMP 6703 eScience Project Slide 9 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Goals  Importing emails from different Mail User Agents (MUAs).  Retrieving Information: keyword based search, and ontology based search.

10 COMP 6703 eScience Project Slide 10 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Structure  Importing processing  Document processing  Query processing  Importing processing  Document processing  Query processing

11 COMP 6703 eScience Project Slide 11 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Importing

12 COMP 6703 eScience Project Slide 12 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Document processing

13 COMP 6703 eScience Project Slide 13 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Query processing +pc –laptop compaq +: required - : prohibited whitespace: optional

14 COMP 6703 eScience Project Slide 14 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Query: mouse trackball computer mouse Query processing

15 COMP 6703 eScience Project Slide 15 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Query processing electronic device mouse device rodent trackball house mouse field mouse … … … WordNet compute r mouse …

16 COMP 6703 eScience Project Slide 16 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Structure Importing processing Document processing Query processing result Lexical database email index

17 COMP 6703 eScience Project Slide 17 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Outline Motivation Goals Performance Conclusion

18 COMP 6703 eScience Project Slide 18 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Performance > Measure Precision = #(relevant items retrieved) #(retrieved items) Recall = #(relevant items retrieved) #(relevant items)

19 COMP 6703 eScience Project Slide 19 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Performance > Measure

20 COMP 6703 eScience Project Slide 20 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Performance > Typical Query: laptop

21 COMP 6703 eScience Project Slide 21 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Performance > Overall

22 COMP 6703 eScience Project Slide 22 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Outline Motivation Goals Performance Conclusion

23 COMP 6703 eScience Project Slide 23 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son A similarity function An implementation Conclusion

24 COMP 6703 eScience Project Slide 24 Ontology-Driven Text Mining for Digital Forensics © 2007 Phan Son Thank you!

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