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Record W2897843712 · doi:10.1109/cig.2018.8490400

Anxious Learning in Real-Time Heuristic Search

2018· article· en· W2897843712 on OpenAlexaff
Vadim Bulitko, Kacy Doucet

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldComputer Science
TopicArtificial Intelligence in Games
Canadian institutionsUniversity of Alberta
Fundersnot available
KeywordsHeuristicComputer scienceIncremental heuristic searchNull-move heuristicArtificial intelligencePathfindingConsistent heuristicProcess (computing)Plan (archaeology)Machine learningBeam searchSearch algorithmTheoretical computer scienceAlgorithm

Abstract

fetched live from OpenAlex

Real-time heuristic search methods are used when planning time available per agent's move is severely limited (e.g., while pathfinding in a video game). Such agents interleave planning and plan execution. As the agent has to move before a complete plan is computed, it is prone to be misguided by inaccuracies in its heuristic. To get out of heuristic depressions, such agents update their heuristic over time. The usual update process requires multiple state revisits which can make the agent appear irrational to the player. To alleviate such map "scrubbing" we propose a new learning mechanism inspired by the psychological notion of anxiety. Our agent maintains a level of anxiety which increases due to state revisits and decays naturally over time. Agent's anxiety causes it to update the heuristic more aggressively thus filling heuristic depressions quicker. Such anxiety-accelerated learning can be used on top of other real-time heuristic search techniques. Empirical evaluation on video-game pathfinding benchmarks demonstrates benefits for the average solution quality when the new mechanism is used by itself or in combination with expendable state marking.

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 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 categoriesInsufficient payload (model declined to judge)
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 score0.935
Threshold uncertainty score0.996

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 communication0.0000.000
Open science0.0010.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.005

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 head0.039
GPT teacher head0.323
Teacher spread0.284 · 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 teacher head, not a consensus.

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

Citations1
Published2018
Admission routes1
Has abstractyes

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