MétaCan
Menu
Back to cohort
Record W2311043595

A consistency-based system for knowledge base merging

2006· dissertation· en· W2311043595 on OpenAlexfundno aff
Daphne Hao Liu

Bibliographic record

VenueSummit (Simon Fraser University) · 2006
Typedissertation
Languageen
FieldComputer Science
TopicLogic, Reasoning, and Knowledge
Canadian institutionsnot available
FundersNatural Sciences and Engineering Research Council of CanadaSimon Fraser University
KeywordsKnowledge baseConsistency (knowledge bases)Merge (version control)Belief revisionComputer scienceVocabularyPropositional calculusProblem solverBase (topology)Theoretical computer scienceWeak consistencyKnowledge-based systemsProcess (computing)SolverArtificial intelligenceAlgorithmMathematicsInformation retrievalStrong consistencyProgramming languageSoftware engineeringLinguistics
DOInot available

Abstract

fetched live from OpenAlex

The ability to change one's beliefs consistently is essential for sound reasoning in a world where the new information one acquires may invalidate or augment one's current beliefs. Belief revision is the process wherein an agent modifies its beliefs to incorporate the new information received, and knowledge base merging the process wherein the agent is given two or more knowledge bases to merge. We present a binary decision diagram (BDD) - based implementation of Delgrande and Schaub's consistency-based belief change framework. Our system focuses on knowledge base merging with the possible incorporation of integrity constraints, using a BDD solver for consistency checking. We show that the result of merging finite knowledge bases can be represented as a finite formula, and that merging can be streamlined algorithmically by restricting attention to a subset of the vocabulary of the propositional formulas involved. Experimental results and comparisons with related systems are also given.

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)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.833
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.001
Science and technology studies0.0010.000
Scholarly communication0.0000.000
Open science0.0020.000
Research integrity0.0010.000
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 head0.014
GPT teacher head0.219
Teacher spread0.205 · 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 designNot applicable
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
Published2006
Admission routes1
Has abstractyes

Explore more

Same venueSummit (Simon Fraser University)Same topicLogic, Reasoning, and KnowledgeFrench-language works237,207