Code-tagging and similarity-based retrieval with myCBR
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This paper describes the code tagging plug-in coTag, which allows annotating code snippets in the integrated development environment eclipse. coTag offers an easy-to-use interface for tagging and searching. Using the similarity-based search engine of the open-source tool myCBR, the user can search not only for exactly the same tags as offered by other code tagging extensions, but also for similar tags and, thus, for similar code snippets. coTag provides means for context-based adding of new as well as changing of existing similarity links between tags, supported by myCBR’s explanation component.
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Code-tagging and similarity-based retrieval with myCBR
- 1. CAMBRIDGE, UK, 10 DEC 2008 Code-tagging and similarity- based retrieval with myCBR Thomas Roth-Berghofer & Daniel Bahls Senior researcher, trb@dfki.de German Research Centre for Artificial Intelligence DFKI GmbH Samstag, 18. Juli 2009
- 2. Programmer‘s dilemma Samstag, 18. Juli 2009
- 3. Programmer‘s dilemma Samstag, 18. Juli 2009
- 4. Programmer‘s dilemma • Where is the code fragment I used to solve a similar problem in the past? • Is this piece of code still available? • Is it worth the effort to search for it? • If so, what would be the right search term? Samstag, 18. Juli 2009
- 5. Personalised approach Samstag, 18. Juli 2009
- 6. Personalised approach • Personal vocabulary: tags Samstag, 18. Juli 2009
- 7. Personalised approach • Personal vocabulary: tags • Linking tags Samstag, 18. Juli 2009
- 8. Personalised approach • Personal vocabulary: tags • Linking tags • Case-based retrieval Samstag, 18. Juli 2009
- 9. Personalised approach • Personal vocabulary: tags • Linking tags • Case-based retrieval • Work context Samstag, 18. Juli 2009
- 10. Personalised approach • Personal vocabulary: tags • Linking tags • Case-based retrieval • Work context • Social dimension: tag exchange Samstag, 18. Juli 2009
- 11. CBR cycle Agnar Aamodt and Enric Plaza. Case-based reasoning: Foundational issues, methodological variations, and system approaches. AI Communications, 7(1):39–59, 1994. Samstag, 18. Juli 2009
- 12. CBR cycle myCBR CBR Agnar Aamodt and Enric Plaza. Case-based reasoning: Foundational issues, methodological variations, and system approaches. AI Communications, 7(1):39–59, 1994. Samstag, 18. Juli 2009
- 13. Code snippet & context Java code snippet Samstag, 18. Juli 2009
- 14. Code snippet & context Java code snippet Work context • java.net.URL • java.net.URLConnection • java.io.InputStream • java.lang.StringBuffer • java.io.BufferedReader • java.lang.String • java.lang.Exception Samstag, 18. Juli 2009
- 15. Case structure Attribute Value type category Tags String (multiple) Problem description Context items String (multiple) Problem description Code snippet String Solution Document type String Provenance Project name String Provenance File path String Provenance Author ID String Provenance Creation date Long Provenance Rating Float Maintenance Rating count Integer Maintenance Samstag, 18. Juli 2009
- 16. Case structure Set by user Set by coTag Attribute Value type category Tags String (multiple) Problem description Context items String (multiple) Problem description Code snippet String Solution Document type String Provenance Project name String Provenance File path String Provenance Author ID String Provenance Creation date Long Provenance Rating Float Maintenance Rating count Integer Maintenance Samstag, 18. Juli 2009
- 17. Acquiring case Samstag, 18. Juli 2009
- 18. Acquiring case Samstag, 18. Juli 2009
- 19. Query view • Search for tags: init, logging config • Include context => regard currently selected code Samstag, 18. Juli 2009
- 20. Retrieval • Result for: init, logging, config • Ranked list of code snippets Samstag, 18. Juli 2009
- 21. Presentation of cases Samstag, 18. Juli 2009
- 22. Situations in which explanations play a role • Instructing explanations: • Novice users want to know about how tagging and (similarity-based) retrieval works. • Convincing explanations: • Regular users want to check when the retrieval does not meet their expectations. • Improving explanations • Regular users want to correct coTag‘s behaviour. Samstag, 18. Juli 2009
- 23. Explanation of matching • Search terms: • init, logging, config • Case tags: • init, Logger Samstag, 18. Juli 2009
- 24. Graphical explanation of trigram matching • Syntactical similarity • Typos • Stemming Samstag, 18. Juli 2009
- 25. Similarity customisation • Tag similarities: unsimilar 0% partly similar 25% similar 50% very similar 75% identical 100% • Updates personal and community similarity measure Samstag, 18. Juli 2009
- 26. Similarity customisation • Tag similarities: unsimilar 0% partly similar 25% similar 50% very similar 75% identical 100% • Updates personal and community similarity measure Samstag, 18. Juli 2009
- 27. Three levels of similarity calculation Personal Imported Trigram Samstag, 18. Juli 2009
- 28. Three levels of similarity calculation Personal Imported Trigram Samstag, 18. Juli 2009
- 29. Three levels of similarity calculation Personal Imported Trigram Samstag, 18. Juli 2009
- 30. Three levels of similarity calculation Personal Imported Trigram Samstag, 18. Juli 2009
- 31. Three levels of similarity calculation Personal Imported Trigram Samstag, 18. Juli 2009
- 32. Customised (personal) and imported similarity Samstag, 18. Juli 2009
- 33. Client-side architecture Samstag, 18. Juli 2009
- 34. Client-side architecture Samstag, 18. Juli 2009
- 35. Client-side architecture Samstag, 18. Juli 2009
- 36. Tag and exchange code snippets Samstag, 18. Juli 2009
- 37. Samstag, 18. Juli 2009
- 38. Samstag, 18. Juli 2009
- 39. Take home messages Samstag, 18. Juli 2009
- 40. Take home messages • Re-finding information is a quite typical task in knowledge-work. Samstag, 18. Juli 2009
- 41. Take home messages • Re-finding information is a quite typical task in knowledge-work. • Tagging is a helpful and well- known technique. Samstag, 18. Juli 2009
- 42. Take home messages • Re-finding information is a quite typical task in knowledge-work. • Tagging is a helpful and well- known technique. • Similarity-based retrieval can improve searches. Samstag, 18. Juli 2009
- 43. Take home messages • Re-finding information is a quite typical task in knowledge-work. • Tagging is a helpful and well- known technique. • Similarity-based retrieval can improve searches. • Explanation-aware development of applications help you deal with increased complexity of similarity- based retrieval. Samstag, 18. Juli 2009
- 44. Thank you! CAMBRIDGE, UK, 10 DEC 2008 Code-tagging and similarity- based retrieval with myCBR Thomas Roth-Berghofer & Daniel Bahls Senior researcher, trb@dfki.de German Research Centre for Artificial Intelligence DFKI GmbH Samstag, 18. Juli 2009