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Record W2137381762 · doi:10.1145/1391732.1391736

Perturb+mutate

2008· article· en· W2137381762 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

VenueACM Transactions on Reconfigurable Technology and Systems · 2008
Typearticle
Languageen
FieldEngineering
TopicVLSI and FPGA Design Techniques
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsBenchmark (surveying)Computer scienceHeuristicElectronic circuitLocalityConstant (computer programming)SoftwareMeasure (data warehouse)AlgorithmArtificial intelligencePhysics

Abstract

fetched live from OpenAlex

CAD tool designers are always searching for more benchmark circuits to stress their software. In this article we present a heuristic method to generate benchmark circuits specially suited for incremental place-and-route tools. The method removes part of a real circuit and replaces it with an altered version of the same circuit to mimic an incremental design change. The alteration consists of two steps: mutate followed by perturb . The perturb step exactly preserves as many circuit characteristics as possible. While perturbing, reproduction of interconnect locality, a characteristic that is difficult to measure reliably or reproduce exactly, is controlled using a new technique, ancestor depth control (ADC). Perturbing with ADC produces circuits with postrouting properties that match the best techniques known to-date. The mutate step produces targetted mutations resulting in controlled changes to specific circuit properties (while keeping other properties constant). We demonstrate one targetted mutation heuristic, scale, to significantly change circuit size with little change to other circuit characteristics. The method is simple enough for inclusion in a CAD tool directly, and fast enough for use in on-the-fly benchmark generation.

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)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Other design · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.807
Threshold uncertainty score0.669

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
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 head0.019
GPT teacher head0.207
Teacher spread0.187 · 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