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Restless Bandits for Sensor Scheduling in Energy Constrained Networks

2022· article· en· W4365800375 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

Venuenot available
Typearticle
Languageen
FieldDecision Sciences
TopicAdvanced Bandit Algorithms Research
Canadian institutionsUniversity of OttawaPolytechnique Montréal
Fundersnot available
KeywordsMarkov decision processComputer scienceScheduling (production processes)Partially observable Markov decision processMathematical optimizationWireless sensor networkChannel (broadcasting)ObservableJob shop schedulingDynamic programmingMarkov processEnergy consumptionMarkov chainReal-time computingMarkov modelComputer networkAlgorithmMathematicsEngineering

Abstract

fetched live from OpenAlex

We consider the problem of sensor scheduling in energy constrained network. It is modeled using restless multi-armed bandits with dynamic availability of arms. An arm represents the sensor and due to the energy constrained its availability is dynamic. The data transmission rate depends on the channel quality. Sensor scheduling problem is a sequential decision problem which needs to account both for the evolution of the channel quality and fluctuation in energy levels of sensor nodes. When sensor with available energy is scheduled, it yields data rate based on channel quality, this is referred to as immediate reward. The channel quality is modeled using two state Markov model. The higher channel state corresponds to higher quality, and hence higher immediate reward. When sensors are not scheduled, it yields no reward. Sensors with non-availability of energy are not scheduled. Further, channel quality of sensors is not observable to the decision maker but signals after data transmissions are observable. It is called as partially observable restless bandits. The objective of decision maker is to maximize infinite horizon discounted cumulative reward by sequentially scheduling sensors. We study Whittle's index policy, and describe algorithm to compute index formula. We also study online rollout policy and analyze the computation complexity. The simulation examples compare the performances of different policies-index policy, rollout policy, and myopic policy.

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)0.003
metaresearch head score (Gemma)0.002
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.959
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0030.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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 head0.136
GPT teacher head0.430
Teacher spread0.294 · 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

Citations1
Published2022
Admission routes1
Has abstractyes

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