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Record W2296326836

Big Graph Privacy

2015· article· en· W2296326836 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueEDBT/ICDT Workshops · 2015
Typearticle
Languageen
FieldComputer Science
TopicPrivacy-Preserving Technologies in Data
Canadian institutionsUniversity of Calgary
Fundersnot available
KeywordsComputer scienceScalabilityTheoretical computer scienceLeverage (statistics)GraphInformation privacyBig dataGraph databaseData miningComputer securityMachine learningDatabase
DOInot available

Abstract

fetched live from OpenAlex

Massive graphs have become pervasive in a wide variety of data domains. However, they are generally more difficult to anonymize because the structural information buried in graph can be leveraged by an attacker to breach sensitive attributes. Furthermore, the increasing sizes of graph data sets present a major challenge to anonynization algorithms. In this paper, we will address the problem of privacy-preserving data mining of massive graph-data sets. We design a MapReduce framework to address the problem of attribute disclosure in massive graphs. We leverage the MapReduce framework to create a scalable algorithm that can be used for very large graphs. Unlike existing literature in graph privacy, our proposed algorithm focuses on the sensitive content at the nodes rather than on the structure. This is because content-centric perturbation at the nodes is a more effective way to prevent attribute disclosure rather than structural reorganization. One advantage of the approach is that structural queries can be accurately answered on the anonymized graph. We present experimental results illustrating the effectiveness of our method.

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.

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)0.001
metaresearch head score (Gemma)0.018
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMetaresearch, Meta-epidemiology (narrow), Open science
Consensus categoriesOpen science
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.774
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.018
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.002
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0410.089
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.001

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 head0.065
GPT teacher head0.285
Teacher spread0.220 · 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