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Record W3207110527 · doi:10.1002/rnc.5833

State estimation for systems with unobservable packet losses: Approximate estimation, stability, and performance analysis

2021· article· en· W3207110527 on OpenAlex
Hong Lin, James Lam, Zidong Wang, Zhan Shu

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

VenueInternational Journal of Robust and Nonlinear Control · 2021
Typearticle
Languageen
FieldEngineering
TopicStability and Control of Uncertain Systems
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsUnobservableEstimatorStability (learning theory)Network packetComputer scienceComputationAlgorithmMathematicsControl theory (sociology)Applied mathematicsMathematical optimizationStatisticsArtificial intelligenceEconometrics

Abstract

fetched live from OpenAlex

Abstract For a system with packet losses, if the estimator can observe the status of packet losses, it is called a system with observable packet losses (an OPL system); otherwise, it is called a system with unobservable packet losses (a UPL system). We obtain the optimal estimator (OE) for UPL systems, which consists of an exponentially increasing number of items, and thus is computationally intractable. To address the computation issue, we design an approximate optimal estimator (AOE), which can be computed recursively. The proposed AOE features a theoretically‐proven stability condition and a theoretically‐guaranteed superiority to the optimal linear estimator (OLE). Specifically, for stability, we prove that for a stable UPL system, both the OE and the proposed AOE are stable; for performance, we show that both the OE and the proposed AOE are superior to the OLE in the mean sense. Then, we obtain a tight upper bound of the performance deviation between the OE and the proposed AOE. Finally, numerical examples are presented to illustrate the obtained results and the effectiveness of the proposed AOE in estimating system states when the packet‐loss status, that is, the private information of packet losses, cannot be observed.

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)0.001
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: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.463
Threshold uncertainty score0.465

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0010.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
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 head0.014
GPT teacher head0.225
Teacher spread0.211 · 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