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Record W7025317902

Useright: a framework for data quality management in crowdsourcing systems

2014· dissertation· en· W7025317902 on OpenAlexfundno aff

Bibliographic record

VenueeScholarship@McGill (McGill) · 2014
Typedissertation
Languageen
FieldComputer Science
TopicMobile Crowdsensing and Crowdsourcing
Canadian institutionsnot available
FundersMcGill University
KeywordsCrowdsourcingCrowdsourcing software developmentQuality (philosophy)Field (mathematics)Data qualityAnonymityCertification
DOInot available

Abstract

fetched live from OpenAlex

There are many problems which cannot be solved by machines, we still need help from people who are intelligent and have skills to solve those problems.Crowdsourcing is the field which uses the skills of people to work on complex problems.In the past decade, many crowdsourcing systems were developed and it is still a growing field among companies and researchers.Though there are many advantages to crowdsourcing, they still lack proper data quality measures.We enumerate the factors that can lead to different data quality problems in crowdsourcing systems.We present a general model for crowdsourcing and talk about different crowdsourcing systems using that general model.This thesis also discusses the classification of crowdsourcing systems using different data quality perspectives.To tackle the data quality problems, we describe the Useright Framework that provides a certification scheme for words and phrases in the document.In this framework, an author publishes documents using credentials obtained from one or more Useright granting institutes.An author asks an institute to provide Useright permissions for a collection of words and phrases that author has chosen.To keep the author's identity private and to check anonymity of author while reading, we introduce the cheap verification scheme.The Useright score for institute is used to increase the believability of document.We provide a design for an extended Useright Framework where an author can edit another author's document using his/her own Useright words and phrases.To evaluate the Useright Framework, we carried out a survey study on Amazon Mechanical Turk, where users were asked to estimate the data quality factors for different documents that were presented in different ways. List ofTables ix 5.2 Variance of Author Qualification for All Documents with All 4 Versions from AMT Workers who spent more than 120 Seconds . . . . . . . . .75 5.3 Variance of Free of Error (Accuracy) for All Documents with All 4Versions from AMT Workers who spent more than 120 Seconds . . . .75

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.005
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.570
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0050.001
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0010.000
Scholarly communication0.0010.001
Open science0.0050.001
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.048
GPT teacher head0.308
Teacher spread0.260 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designTheoretical or conceptual
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2014
Admission routes1
Has abstractyes

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