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Record W944015242

UDM:两个领域里的最佳选择——Analysis Service的新模型结合了关系型(Relational)和OLAP(联机分析处理)报告的优点

2004· article· zh· W944015242 on OpenAlexaboutno aff
PaulSanders

Bibliographic record

VenueWindows & Net Magazine:国际中文版 · 2004
Typearticle
Languagezh
FieldComputer Science
TopicAdvanced Database Systems and Queries
Canadian institutionsnot available
Fundersnot available
KeywordsOnline analytical processingComputer scienceService (business)Relational databaseDatabaseData scienceData warehouseBusiness
DOInot available

Abstract

fetched live from OpenAlex

下一个版本的Analysis Service(分析服务)在一个维度模型——统一维度模型(UDM)中结合了传统的基于OLAP分析和关系型报告的优点,满足了两者的需求集合,将会随着SQL Server Yukon一起发布。与直接访问关系数据库相比,OLAP技术为分析型用户提供了很多方便。OLAP的维度数据模型让理解、浏览和研究数据变得容易。通过OLAP对聚合数据的预计算可以让一些特殊的查询获得较快的响应时间,即使是对大量数据进行操作。

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 machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.005
metaresearch head score (Gemma)0.007
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.011
Threshold uncertainty score0.026

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0050.007
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.003
Science and technology studies0.0020.002
Scholarly communication0.0100.008
Open science0.0010.003
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0050.003

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 head0.016
GPT teacher head0.244
Teacher spread0.228 · 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 source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designSimulation or modeling
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
Published2004
Admission routes1
Has abstractyes

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Same venueWindows & Net Magazine:国际中文版Same topicAdvanced Database Systems and QueriesFrench-language works237,207