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Record W2058217961 · doi:10.1145/2803140.2803141

Write Amplification

2015· article· en· W2058217961 on OpenAlex
Jae-Myung Kim, Kenneth Salem, Khuzaima Daudjee

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

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicAdvanced Data Storage Technologies
Canadian institutionsUniversity of Waterloo
Fundersnot available
KeywordsComputer scienceDatabaseAuxiliary memoryComputer data storageVariety (cybernetics)Storage efficiencyStorage managementStorage modelOperating systemArtificial intelligence

Abstract

fetched live from OpenAlex

Modern in-memory database systems perform transactions an order of magnitude faster than conventional database systems. While in-memory database systems can read the database without I/O, database updates can generate a substantial amount of I/O, since updates must normally be written to persistent secondary storage to ensure that they are durable. In this paper we present a study of storage managers for in-memory database systems, with the goal of characterizing their I/O efficiency. We model the storage efficiency of two classes of storage managers: those that perform in-place updates in secondary storage, and those that use copy-on-write. Our models allow us to make meaningful, quantitative comparisons of storage managers' I/O efficiencies under a variety of conditions.

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: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Methods · Consensus signal: Methods
Teacher disagreement score0.354
Threshold uncertainty score0.466

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.001
Open science0.0010.000
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 head0.064
GPT teacher head0.288
Teacher spread0.225 · 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

Quick stats

Citations2
Published2015
Admission routes1
Has abstractyes

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