Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"wisdom of crowds"”.
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Extracting the Wisdom of Crowds From Crowdsourcing Platforms
Enabled by the wave of online crowdsourcing activities, extracting the Wisdom of Crowds (WoC) has become an emerging research area, one that is used to aggregate judgments, opinions, or predictions from a large group of individuals for improved decision making. However, existing literature mostly …
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Scaling Up Fact-Checking Using the Wisdom of Crowds
Professional fact-checking, a prominent approach to combating misinformation, does not scale easily. Furthermore, some distrust fact-checkers because of alleged liberal bias. We explore a solution to these problems: using politically balanced groups of laypeople to identify misinformation at scale. …
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Identify experts through Revealed Confidence : application to Wisdom of Crowds
… Revealed Confidence (RC) algorithm that improves Wisdom of Crowds (WoC) by identifying experts from the crowds. We highlight the important distinction between first- and second-order uncertainty, which also serves as an explanation for rational overconfidence. Under our proposed belief updating …
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Essays on Mechanisms Underlying Belief Updating with Applications in Wisdom of Crowds
This dissertation consists of three chapters on understanding how people update their beliefs after learning about others’ opinions and how we can leverage belief-updating to improve Wisdom of Crowds. In Chapter One, I propose a new Revealed Expertise (RE) algorithm that uses the “RE measure”, …
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THE MORE, THE BETTER? MISALIGNMENT BETWEEN ACTUAL AND PERCEIVED EFFICACY OF A DISAGGREGATE APPROACH TO MULTIPLE-CUE EVALUATIONS
… an evaluation involves assessing multiple items of information about a target, evaluators can choose between two opposing strategies: reviewing all target information at once and forming an overall evaluation (a holistic approach) or reviewing each item of information independently and combining …
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Eliciting and Aggregating Forecasts When Information is Shared
<p>Using the wisdom of crowds---combining many individual forecasts to obtain an aggregate estimate---can be an effective technique for improving forecast accuracy. When individual forecasts are drawn from independent and identical information sources, a simple average provides the optimal crowd …
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User-Generated Content and Revolutions: Towards a Theorization of Web 2.0
The purpose of this dissertation is to examine how characteristics of Web 2.0, users’ beliefs on freedom of information in the Web, and external forces combine to create social stability and how changes in these factors can lead to revolts. While still an emerging phenomenon, the web has evolved …
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PERSUASION IN REWARD-BASED CROWDFUNDING: THE ROLE OF VISUAL IMAGE
As a new form of fundraising for business startups, crowdfunding (CF) benefits the entrepreneurs by (1) overcoming geographical constraints (Agrawal et al., 2011); (2) adding publicity (e.g., Belleflamme et al., 2013); (3) enabling them to collect “wisdom of crowds” (Collins & Pierrakis, 2012). To …
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Groundwork and Principles for Applied Conservatism
This thesis is a broad survey of conservatism-in-general, written in the immediate context of important conservative institutions being threatened by or having already fallen to radical populism and reactionaryism. The thesis provides groundwork to help establish principles of conservatism (POCs), …
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Essays on Understanding and Combating Misinformation at Scale
In Chapter 1, I explore the use of crowdsourcing as a potential solution to the misinformation problem at scale. Perhaps the most prominent approach to combating misinformation is the use of professional fact-checkers. This approach, however, is not scalable: Professional fact-checkers cannot …
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Spam Analysis and Detection for User Generated Content in Online Social Networks
Recent years have witnessed the success of a number of online social networks(OSNs) and explosive increasing of social media. These social networking andsocial media sites have attracted a significant number of participants thatcontribute various types of contents on the Internet, which are …
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Experimental Democracy - Collective Intelligence for a Diverse and Complex World
… while we care very much about the outcomes of the democratic process, there is widespread uncertainty about ex ante how to produce them - and quite often there is also disagreement and uncertainty about what they are in the first place. Consequently, unless we have a definite idea what …
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Patent abandonment and subsequent cumulative inventions
… three subsequent time-periods after the issuance of the patent. The focal firm’s patent abandonment reduces transaction costs of external inventors conducting cumulative inventions that build on the focal firm’s abandoned patent, which creates a larger and broader knowledge spillover pool. …