identifying, annotating, and filtering arguments and opinions on the social web - phd viva slides...
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How do we support people in using/reusing arguments and opinions on the World Wide Web? WIMMICS, INRIA seminar based on my PhD viva slides.TRANSCRIPT
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Identifying, Annotating, and Filtering Arguments and Opinions on the Social Web
Jodi Schneider
WIMMICS seminarINRIA Sophia Antipolis – Méditerranée & I3Svendredi 21 février 2014
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How can we make sense of disagreement?
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Arguments & opinions give a rationale
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Reuse arguments & rationales
o How do we make arguments more clear to BOTH humans and machines?
o Explicit arguments are not available• Important in bug reports, political commentary,
product reviews, etc.
o Machine-readable arguments could help• Gather information – e.g. finding issues, claims, and
opinion clusters• Connect opinions to explicit evidence• Navigate claims networks
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Arguments in collective decision-making
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Arguments about content deletion
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Arguments in open collaboration systems
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Open collaboration systems
“people form ties with others & create things together” (Forte and Lampe 2013)
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Open collaboration systems
“people form ties with others & create things together” (Forte and Lampe 2013)
Examples:o Wikipediao HTML5 working groupo OpenStreetMapo Project Gutenberg – Distributed Proofreaderso Apache projects, Mozilla Firefox, …
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How do we enable the reuse of arguments and opinions in open collaboration systems?
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Use case: deletion in Wikipedia
o 1 in 4 new Wikipedia articles is deleted – within minutes or hours
o Demotivating! • 1 in 3 newcomers start by writing a new article• 7X less likely to stay if their article is deleted!
o Can we support editor retention?
Source: http://enwp.org/Wikipedia:Wikipedia_Signpost/2011-04-04/Editor_retention
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Thousands of new editors each month
Source: http://reportcard.wmflabs.org/
English
All languages
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Policies grew 10-15X (2002-2008)
See e.g. Butler, Joyce, and Pike. CHI 2008 "Don't look now, but we've created a bureaucracy: the nature and roles of policies and rules in Wikipedia."
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Supporting open collaboration systems
o Can we support editor retention?
o Make criteria explicit to:• Explain community expectations (how to be
convincing)• Support making & auditing decisions
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Research Questions
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How do we enable the reuse of arguments and opinions on the World Wide Web?
o RQ1: What are the opportunities and requirements for providing argumentation support?
o RQ2: Which arguments are used in open collaboration systems?
o RQ3: How can we structure and display opinions and arguments to support filtering?
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How do we enable the reuse of arguments and opinions on the World Wide Web?
o RQ1: What are the opportunities and requirements for providing argumentation support?
o RQ2: Which arguments are used in open collaboration systems?
o RQ3: How can we structure and display opinions and arguments to support filtering?
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How do we enable the reuse of arguments and opinions on the World Wide Web?
o RQ1: What are the opportunities and requirements for providing argumentation support?
o RQ2: Which arguments are used in open collaboration systems?
o RQ3: How can we structure and display opinions and arguments to support filtering?
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How do we enable the reuse of arguments and opinions on the World Wide Web?
o RQ1: What are the opportunities and requirements for providing argumentation support? Netnography
o RQ2: Which arguments are used in open collaboration systems? Iterative Annotation
o RQ3: How can we structure and display opinions and arguments to support filtering?
Semantic Web Systems Development
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RQ1: What are the opportunities and requirements for providing argumentation support?
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Methodology: Netnography
Kozinets, Robert V. Netnography: Doing ethnographic research online. Sage Publications, 2010.
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Methodology: Netnography
1. Planning and community selection2. Participant observation and data collection3. Data analysis and iterative interpretation4. Presenting results
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Results: Sample corpus72 discussions started on 1 day
o Each discussion has:• 3—33 messages• 2—15 participants
o 741 messages contributed by 244 users.Each message has 3—350+ words.
o 98 printed A4 sheets
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Example from Corpus
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Example from Corpus
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Results: Terminology and policy knowledge becomes an obstacle
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Results: Important tasks for consensus discussions
1. Determine one’s personal position2. Express one’s personal position in
accordance with community norms3. Determine the consensus
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RQ2: Which arguments are used in open collaboration systems?
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Methods
o Use corpus of 72 discussionso Two types of annotation: 2 argumentation
theorieso Iterative annotation for each theory
• Multiple annotators• Refine to get good inter-annotator agreement• 4 rounds of annotation
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Two argumentation theories
o Walton’s Argumentation Schemes (Walton, Reed, and Macagno 2008)
• Informal argumentation (philosophical & computational argumentation)
• Identify & prevent errors in reasoning (fallacies)• 60 patterns
o Factors Analysis(Ashley 1991)
• Case-based reasoning• E.g. factors for deciding cases in trade secret law,
favoring either party (the plaintiff or the defendant).
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Walton’s Argumentation Schemes
Example Argumentation Scheme: Argument from Rules – “we apply rule X”
Critical Questions1. Does the rule require carrying out this type of action?2. Are there other established rules that might conflict with or override this one?3. Are there extenuating circumstances or an excuse for noncompliance?
Walton, Reed, and Macagno 2008
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Walton’s Argumentation Schemes
Jodi Schneider, Krystian Samp, Alexandre Passant, Stefan Decker. “Arguments about Deletion: How Experience Improves the Acceptability of Arguments in Ad-hoc Online Task Groups”. In CSCW 2013.
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Factors Analysis
Factors determined by iterative annotation
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Factors Analysis
Factors determined by iterative annotation
4 Factors cover• 91% of comments• 70% of discussions
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Factors Analysis
Factors determined by iterative annotation
4 Factors cover• 91% of comments• 70% of discussions
“Other” as 5th catchall
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Factors Analysis
Factors determined by iterative annotation
4 Factors cover• 91% of comments• 70% of discussions
“Other” as 5th catchall
Factor Example (used to justify `keep')
Notability Anyone covered by another encyclopedic reference is considered notable enough for inclusion in Wikipedia.
Sources Basic information about this album at a minimum is certainly verifiable, it's a major label release, and a highly notable band.
Maintenance
…this article is savable but at its current state, needs a lot of improvement.
Bias It is by no means spam (it does not promote the products).
**Other I'm advocating a blanket "hangon" for all articles on newly-drafted players
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RQ3: How can we structure and display opinions and arguments to support filtering?
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Methodology
o Linked Data Application Development
o User testing – 20 users
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Add a discussion summary
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Add a discussion summary
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Semantically enrich messages
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Use semantic structure
Implementation based on Jodi Schneider and Krystian Samp “Alternative Interfaces for Deletion Discussions in Wikipedia: Some Proposals Using Decision Factors. [Demo]” In WikiSym2012.
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Experimental design
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System A (Control)
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System B (Experimental)
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Experimental design
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Experimental design
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PU* - Perceived usefulness
PE* - Perceived ease of use
DC -Decision completeness
PF - Perceived effort
IC* - Information completeness
Statistical SignificancePU* p < .001PE* p .001IC* p .039
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Final survey
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Results: 84% prefer our system
“Information is structured and I can quickly get an overview of the key arguments.”
“The ability to navigate the comments made it a bit easier to filter my mind set and to come to a conclusion.”
“It offers the structure needed to consider each factor separately, thus making the decision easier. Also, the number of comments per factor offers a quick indication of the relevance and the deepness of the decision.”
Based on a 20 participant user test.1 participant did not take the final survey
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Overall contributions
o A procedure for providing argumentation support
o A demonstration of this procedure, including• A requirements analysis• A categorization of the most common arguments
used according to two theorieso Walton’s argumentation schemeso Factors-dimensions theory
• An ontology for argumentation in Wikipedia deletion discussions.
• An argumentation filtering system that visually summarizes arguments with bar charts of the decision factors.
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Main papers used in the thesis
o Jodi Schneider, Krystian Samp, Alexandre Passant, and Stefan Decker. “Arguments about Deletion: How Experience Improves the Acceptability of Arguments in Ad-hoc Online Task Groups”. In CSCW 2013.
o Jodi Schneider, Tudor Groza, Alexandre Passant, “A Review of Argumentation for the Social Semantic Web.” Semantic Web – Interoperability, Usability, Applicability, 2013, 4(2), 159-218.
o Jodi Schneider and Krystian Samp. “Alternative Interfaces for Deletion Discussions in Wikipedia: Some Proposals Using Decision Factors. [Demo]” In WikiSym2012.
o Jodi Schneider, Alexandre Passant, and Stefan Decker. “Deletion Discussions in Wikipedia: Decision Factors and Outcomes.” In WikiSym2012.
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Summary
o We need better ways of structuring arguments
on the Web.o Arguments vary across Social Media.o Different theories of argumentation stress
different aspects.o Factors analysis is useful for providing a brief
summary of discussions. This can help find consensus.
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Copyright 2011 Digital Enterprise Research Institute. All rights reserved.
Digital Enterprise Research Institute www.deri.ie
Enabling Networked Knowledge
Identifying, Annotating, and Filtering Arguments and Opinions
in Open Collaboration Systems
Jodi Schneider
vendredi 21 fev 2014
60
WIMMICS seminarINRIA Sophia Antipolis - Méditerranée and I3S