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Transcript of Knowledge Science & Engineering Institute, Beijing Normal University, ://ksei.bnu.edu.cn Analyzing...
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Analyzing Transcripts of Online Asynchronous Discussion Groups with VINCAYanyan Li
Knowledge Science & Engineering Institute, School of Education Technology,Beijing Normal [email protected]
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Outline
Existing tools VINCA introduction Further development
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Existing Tools
Annotation aids Nvivo (http://www.qsrinternational.com/) Atlas-ti (http://www.atlasti.de).
Dictionary-based content analysis CATPAC LIWC (http://www.erlbaum.com)
Development environments Profiler Plus DIMAP (http://www.clres.com)
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Shortcomings of the tools
Not integrated Coding process is largely manual Not learnable Display coding results in text or tables Lack of freestanding content analysis
packages incorporating text mining.
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Our goal
Can we design and implement an integrated tool to assist identifying features of interaction and provide feedbacks to facilitate the collaboration in CSCL?
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Implementing a Tool to Support Discussion Transcripts Analysis
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Multidimensional Analysis
How do the students talking with others? What are the students talking about? Who are talking to whom?
Process Pattern
SpeechTopics
MemberRelationship
Interaction Discourse
Keywords in context
Semi-auto Coding
Statistics for Social Network Analysis
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Tool Design Framework
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Vinca ‘s Features
Learnable semi-automatic coding support Analyze text in Chinese (traditional and
simplified) Utilize computational language & text mining
technologies Support assessing for CKBUnderlying technologies
Syntax analysis Domain ontology Association rules mining
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
1) Data preparation
Data preparation to convert Knowledge Forum (KF platform) discourse in html to database format From Version 3.4 From Version 4.5
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
2) Annotation Aids
Edit Coding Scheme New, Modify, Delete
Associate feature keywords to specific codes
Annotation Support segment & merge *Automatic discover the code hint, highlight it and
attach possible codes with confidence probability. During the process of coding, users are allowed to
select the hint to mark the final coding. View Coding Result
Suggested codes
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
3) Text Analysis
Keywords retrieval & frequency counting Concordance *Discourse pattern discovery *Category analysis
Similarity Computation *Text clustering Ontology-based assessing for CKB
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Word Frequency (Keywords Retrieval)
Select Data From KF From Speech File From Single Text File
Exclusive List Special Common
Tag Filter Picked List Find Keywords in Word List Export Keywords & User Keywords Distribution
Import user’s lexicon
Select exclusive list
Select the words with specified
tags
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn 14
Concordance
List of extracted keywords
Concordance
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Check the original text
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Discourse Pattern Discovery
Pattern configuration interface
Frequent pattern mining results
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Category Analysis
Open Category File Search Para Synonyms in Interaction Text
Based on Similarity Computation Category List
Lexicon specified by tutors and auto-found synonyms
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Text Clustering
Select Data.. Get Keywords.. Set Option Export Result of Text Clustering
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn 19
Assessing for CKBGroup
Performance
Member Contribution
Topic similarity between members
Domain ontology
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
4) Data Export for SNA
Export KF Data Export Relation Matrix Export Coding Result Export Coding Matrix Export Coding Frequency
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Annotation aids Semi-automatic coding with enhanced precision
Text analysis Category analysis for topic recognition Discourse Pattern discovery
Visualization Topic space Social network
Further Development
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Knowledge Science & Engineering Institute, Beijing Normal University, http://ksei.bnu.edu.cn
Thanks!Welcome Questions and Comments