Deficient Documentation Detection: A Methodology to Locate Deﬁcient Project Documentation using Topic Analysis

May 21, 20131 like1,071 views

This document presents a methodology for using topic analysis to locate deficient areas in project documentation by relating it to crowd-sourced questions from Stack Overflow. The methodology involves extracting data from Stack Overflow questions and project documentation, performing topic analysis using LDA to generate topic matrices, and subtracting the matrices to identify deficient topics in documentation. Examples of deficient PHP and Python documentation identified are provided.

DEFICIENT DOCUMENTATION DETECTION
A Methodology to Locate Deficient Project
Documentation using Topic Analysis
Joshua Charles Campbell Department of Computing Science
Chenlei Zhang Department of Computing Science
Zhen Xu Department of Electrical and Computer Engineering
Abram Hindle Department of Computing Science
James Miller Department of Electrical and Computer Engineering
The 10th Working Conference on Mining Software Repositories

MOTIVATION
Developers
Official
Crowd-sourced
MSR 2013 2
Project
Documentation
Q&A Website

RESEARCH QUESTION
• Answer the question “Can we identify deficient
areas of project documentation by relating it to
Stack Overflow questions?”
• Provide a method to relate crowd-sourced
questions and project documentation.
3MSR 2013

METHODOLOGY
4
Stack
Overflow
Questions
Data
Extraction
Project
Documentation
MSR 2013
Two-phase Processing
• Data extraction
• Topic analysis
LDA
Ranked Deficient
Topics
Topic
Analysis
Stack Overflow
Question/Topic
Matrix
Project
Documentation/Topic
Matrix
Max
Subtract

PHP EXAMPLE
6
• Deficient documentation exists
• Stack Overflow question #7321289:
• “How want to apply a vignette effect to an image using PHP with
ImageMagik. I found this function but I’m not sure how to use it.”
• PHP documentation:
• Imagick::vignetteImage
• http://www.php.net/manual/en/imagick.vignetteimage.php
MSR 2013

PYTHON EXAMPLE
7
• Deficient documentation exists
• Stack Overflow question #5893163:
• “What is the meaning of _ after for in this code?”
MSR 2013

OUT-OF-SCOPE DOCUMENTATION
• Questions that related to multiple projects
• For example, questions about:
• Clear indications and links should be included
when a user should reference external project
documentation
8
HTML
MSR 2013
MySQL

CONCLUSION
• Developed a method for locating deficient
documented aspects in project documentation;
• Successfully located deficient project
documentation using Stack Overflow questions.
9MSR 2013

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Deficient Documentation Detection: A Methodology to Locate Deﬁcient Project Documentation using Topic Analysis

1. DEFICIENT DOCUMENTATION DETECTION A Methodology to Locate Deficient Project Documentation using Topic Analysis Joshua Charles Campbell Department of Computing Science Chenlei Zhang Department of Computing Science Zhen Xu Department of Electrical and Computer Engineering Abram Hindle Department of Computing Science James Miller Department of Electrical and Computer Engineering The 10th Working Conference on Mining Software Repositories

2. MOTIVATION Developers Official Crowd-sourced MSR 2013 2 Project Documentation Q&A Website

3. RESEARCH QUESTION • Answer the question “Can we identify deficient areas of project documentation by relating it to Stack Overflow questions?” • Provide a method to relate crowd-sourced questions and project documentation. 3MSR 2013

4. METHODOLOGY 4 Stack Overflow Questions Data Extraction Project Documentation MSR 2013 Two-phase Processing • Data extraction • Topic analysis LDA Ranked Deficient Topics Topic Analysis Stack Overflow Question/Topic Matrix Project Documentation/Topic Matrix Max Subtract

5. DEFICIENT TOPICS FOUND 5MSR 2013

6. PHP EXAMPLE 6 • Deficient documentation exists • Stack Overflow question #7321289: • “How want to apply a vignette effect to an image using PHP with ImageMagik. I found this function but I’m not sure how to use it.” • PHP documentation: • Imagick::vignetteImage • http://www.php.net/manual/en/imagick.vignetteimage.php MSR 2013

7. PYTHON EXAMPLE 7 • Deficient documentation exists • Stack Overflow question #5893163: • “What is the meaning of _ after for in this code?” MSR 2013

8. OUT-OF-SCOPE DOCUMENTATION • Questions that related to multiple projects • For example, questions about: • Clear indications and links should be included when a user should reference external project documentation 8 HTML MSR 2013 MySQL

9. CONCLUSION • Developed a method for locating deficient documented aspects in project documentation; • Successfully located deficient project documentation using Stack Overflow questions. 9MSR 2013

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Deficient Documentation Detection: A Methodology to Locate Deﬁcient Project Documentation using Topic Analysis

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Deficient Documentation Detection: A Methodology to Locate Deﬁcient Project Documentation using Topic Analysis