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Record W7132878144

Large scale distributed storage and search for a Video on Demand streaming system

2007· dissertation· W7132878144 on OpenAlexfundno aff
Xonia Ivonne Olavarrieta Arruti

Bibliographic record

VenueTSpace · 2007
Typedissertation
Language
FieldComputer Science
TopicPeer-to-Peer Network Technologies
Canadian institutionsnot available
FundersUniversity of Toronto
KeywordsScalabilityExploitVideo on demandService providerQuality of serviceVideo streamingService (business)
DOInot available

Abstract

fetched live from OpenAlex

In the trend towards all IP networks, providing video services has proven to be challenging. The approaches taken by corporations mainly involve costly solutions, that are hard to manage and scale. If next generation service providers are to deliver high quality on-demand video streaming to a large audience, new higher layer methodologies need to be developed. The success of Peer-to-Peer (P2P) has opened an interesting research area on very diverse distributed applications that exploit their self-organizing, self-managing and self-healing nature. The objective of this thesis is to offer an effective P2P solution that targets Next Generation Video-on-Demand Service Providers' need for distributed storage. To address the challenges of low startup delay, provision of VCR commands, scalability and management of the system we propose a MultiLayered Hybrid P2P topology for the distribution of and search for content.

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)0.000
metaresearch head score (Gemma)0.001
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: Empirical
Teacher disagreement score0.003
Threshold uncertainty score0.011

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0010.000
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0030.001

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 head0.021
GPT teacher head0.336
Teacher spread0.315 · 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
Published2007
Admission routes1
Has abstractyes

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