NDLI: A feature location approach supported by time-aware weighting of terms associated with developer expertise profiles

Content Provider	Springer Nature Link
Author	Zamani, Sima Lee, Sai Peck Shokripour, Ramin Anvik, John
Copyright Year	2016
Abstract	Feature location is a frequent software maintenance activity that aims to identify initial source code location pertinent to a software feature. Most of feature location approaches are based, at least in part, on text analysis methods which originate from the natural language context. However, the natural language context and the text data in software repositories have different properties that reveal the need for adaption of the methods to apply in the context of software repositories. One of the differences is the existence of a set of metadata, such as developer information and time stamp, which is associated with the data in the repositories. However, this difference has not been fully considered in previous feature location research studies. This study proposes a feature location approach that analyzes developer expertise profiles, which contain source code entities modified by the associated software developers, to identify the most similar location pertinent to a desired feature. This approach uses a time-aware term-weighting technique to determine the similarity. An experimental evaluation on four open-source projects shows an improvement in the accuracy, performance, and effectiveness up to 55, 39, and 29 %, respectively, compared to the high-performing information retrieval methods used in feature location. Moreover, the proposed time-aware technique increases the accuracy, performance, and effectiveness of the typical term-weighting technique, tf-idf, as much as 15, 11, and 13 %, respectively. Finally, the proposed approach outperforms our previous approach, noun-based feature location, as much as 17 %. These experimental results demonstrate that time-aware analysis of developers’ expertise significantly improves the feature location process.
Starting Page	629
Ending Page	659
Page Count	31
File Format	PDF
ISSN	02191377
Journal	Knowledge and Information Systems
Volume Number	49
Issue Number	2
e-ISSN	02193116
Language	English
Publisher	Springer London
Publisher Date	2016-01-13
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mining software repositories Text analysis Term weighting Time aware Developer expertise Information Systems and Communication Service IT in Business
Content Type	Text
Resource Type	Article
Subject	Artificial Intelligence Information Systems Human-Computer Interaction Hardware and Architecture Software

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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