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Legal Language Explorer  Presentation @ 24th International Conference onLegal Knowledge and Information Systems (Jurix 201...
Law is characterized by arelatively small number  of highly influentialcases and jurists whoseconceptualization of law   c...
Most Judges and CasesAre Quickly Forgotten
But A Select Few Persist ...
Extreme Skewing is a Typical      Feature of Legal Systems  Katz, et al (2011)     Katz & Stafford (2010)         Geist (2...
innovative use of  language and   metaphor is     In Part
How Holmesbecame “Holmes”and how Posnerbecame “Posner”
And how certain casescame to dominate the rest of the corpus
We BelieveThe decision corpus is our  archeological record
We Believe The decision corpus is our   archeological record  and that record can beusefully explored using the  tools of ...
We WantTo Democratize the Exploration     of Legal Language ...
We Want To Democratize the Exploration      of Legal Language ...to folks who are not programmers
We Want To Democratize the Exploration      of Legal Language ...to folks who are not programmers      to folks who are no...
We Develop a Simple WebInterface that Leverages    the Visual Cortex
Relies on Our Ability    to Engage in Pattern Detection
To Explore Linguistic Patterns in Large  Corpora of Legal     Documents
We Start with the Full Text Corpus of Decisions of theUnited States Supreme Court        1791-2005
Develop a N-Gram Based Explorerwith a Portal to the Full Text, etc.
From Text to N-Grams...
Generate the N-Gram Mapping  (1) extract the opinion text from each  case and store it as a sequence of  characters  (2) c...
Generate the N-Gram Mapping
Legal Language Explorer: A Brief Tour of The Interface
Go toLegalLanguageExplorer.com And Access This Interface
Notice The Default Search IsInterstate Commerce, Railroad, Deed
Notice The Default Search IsInterstate Commerce, Railroad, Deed
For Each Comma Separated PhraseThe Frequency Plot Appears Below
For Each Comma Separated PhraseThe Frequency Plot Appears Below
Currently Supporting Every U.S. Supreme   Court Decision From 1791 - 2005
Currently Supporting Every U.S. Supreme   Court Decision From 1791 - 2005
Years Can Be Changed   By The End User
Years Can Be Changed   By The End User
Click Here to Access Various Advanced Search Features
The AdvancedSearch Features
Are the Observed Trendsa Function of changes in the volume of the case docket?
Normalization allows End User to control for the Size of the Case Docket
Normalization allows End User to control for the Size of the Case Docket
Change the Graph Type   By Clicking Here
An Alternative Presentation        of the Data
Export the    Chart Data(If You Want to Replot in   Stata, Excel, R, etc.)
Export the    Chart Data(If You Want to Replot in   Stata, Excel, R, etc.)
The Results(If You Want to Replot in   Stata, Excel, R, etc.)
Access a Case List and  Full Text Results
Here are the Returned  Results
Download List in  Excel(or any .csv)
Download List in  Excel(or any .csv)
Access theFull Text aParticular   Case
Click Through  to AccessResults fromBulkResource.org
For More Information -     Full Version of the Paperhttp://papers.ssrn.com/sol3/papers.cfm?abstract_id=1971953
ForImplementation    Details (Including the Key Value   Storage Method, etc.) http://www.michaelbommarito.com/ blog/2011/1...
Slides will Be Posted to CLS Blog      http://computationallegalstudies.com/
This is Only The BeginningStay Tuned for More in 2012            :)                  daniel martin katz                  m...
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Presentation @ 24th International Conference on Legal Knowledge and Information Systems ( Jurix 2011 - Vienna )

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Presentation @ 24th International Conference on Legal Knowledge and Information Systems ( Jurix 2011 - Vienna )

  1. 1. Legal Language Explorer Presentation @ 24th International Conference onLegal Knowledge and Information Systems (Jurix 2011) daniel martin katz michael j bommarito ii julie seaman adam candeub eugene agichtein
  2. 2. Law is characterized by arelatively small number of highly influentialcases and jurists whoseconceptualization of law comes to dominate
  3. 3. Most Judges and CasesAre Quickly Forgotten
  4. 4. But A Select Few Persist ...
  5. 5. Extreme Skewing is a Typical Feature of Legal Systems Katz, et al (2011) Katz & Stafford (2010) Geist (2009)American Legal Academy American Federal Judges Austrian Supreme Court Smith (2007) Smith (2007) Post & Eisen (2000) U.S. Supreme Court U.S. Law Reviews NY Ct of Appeals
  6. 6. innovative use of language and metaphor is In Part
  7. 7. How Holmesbecame “Holmes”and how Posnerbecame “Posner”
  8. 8. And how certain casescame to dominate the rest of the corpus
  9. 9. We BelieveThe decision corpus is our archeological record
  10. 10. We Believe The decision corpus is our archeological record and that record can beusefully explored using the tools of computational linguistics
  11. 11. We WantTo Democratize the Exploration of Legal Language ...
  12. 12. We Want To Democratize the Exploration of Legal Language ...to folks who are not programmers
  13. 13. We Want To Democratize the Exploration of Legal Language ...to folks who are not programmers to folks who are not technically inclined
  14. 14. We Develop a Simple WebInterface that Leverages the Visual Cortex
  15. 15. Relies on Our Ability to Engage in Pattern Detection
  16. 16. To Explore Linguistic Patterns in Large Corpora of Legal Documents
  17. 17. We Start with the Full Text Corpus of Decisions of theUnited States Supreme Court 1791-2005
  18. 18. Develop a N-Gram Based Explorerwith a Portal to the Full Text, etc.
  19. 19. From Text to N-Grams...
  20. 20. Generate the N-Gram Mapping (1) extract the opinion text from each case and store it as a sequence of characters (2) convert this sequence of characters into a sequence of words through Word Tokenization (Penn Tree Bank Algorithm) (3) iterate over words in the length M sequence from index 1 to index M + 1 – N
  21. 21. Generate the N-Gram Mapping
  22. 22. Legal Language Explorer: A Brief Tour of The Interface
  23. 23. Go toLegalLanguageExplorer.com And Access This Interface
  24. 24. Notice The Default Search IsInterstate Commerce, Railroad, Deed
  25. 25. Notice The Default Search IsInterstate Commerce, Railroad, Deed
  26. 26. For Each Comma Separated PhraseThe Frequency Plot Appears Below
  27. 27. For Each Comma Separated PhraseThe Frequency Plot Appears Below
  28. 28. Currently Supporting Every U.S. Supreme Court Decision From 1791 - 2005
  29. 29. Currently Supporting Every U.S. Supreme Court Decision From 1791 - 2005
  30. 30. Years Can Be Changed By The End User
  31. 31. Years Can Be Changed By The End User
  32. 32. Click Here to Access Various Advanced Search Features
  33. 33. The AdvancedSearch Features
  34. 34. Are the Observed Trendsa Function of changes in the volume of the case docket?
  35. 35. Normalization allows End User to control for the Size of the Case Docket
  36. 36. Normalization allows End User to control for the Size of the Case Docket
  37. 37. Change the Graph Type By Clicking Here
  38. 38. An Alternative Presentation of the Data
  39. 39. Export the Chart Data(If You Want to Replot in Stata, Excel, R, etc.)
  40. 40. Export the Chart Data(If You Want to Replot in Stata, Excel, R, etc.)
  41. 41. The Results(If You Want to Replot in Stata, Excel, R, etc.)
  42. 42. Access a Case List and Full Text Results
  43. 43. Here are the Returned Results
  44. 44. Download List in Excel(or any .csv)
  45. 45. Download List in Excel(or any .csv)
  46. 46. Access theFull Text aParticular Case
  47. 47. Click Through to AccessResults fromBulkResource.org
  48. 48. For More Information - Full Version of the Paperhttp://papers.ssrn.com/sol3/papers.cfm?abstract_id=1971953
  49. 49. ForImplementation Details (Including the Key Value Storage Method, etc.) http://www.michaelbommarito.com/ blog/2011/12/16/building-legal- language-explorer-interactivity- and-drill-down-nosql-and-sql/
  50. 50. Slides will Be Posted to CLS Blog http://computationallegalstudies.com/
  51. 51. This is Only The BeginningStay Tuned for More in 2012 :) daniel martin katz michael j bommarito ii julie seaman adam candeub eugene agichtein

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