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Navigating by Means of a Position Potential

2000· article· en· W2143611543 on OpenAlexaff
Benlin Xu, Petr Vaníček

Bibliographic record

VenueNAVIGATION Journal of the Institute of Navigation · 2000
Typearticle
Languageen
FieldComputer Science
TopicTarget Tracking and Data Fusion in Sensor Networks
Canadian institutionsUniversity of New Brunswick
Fundersnot available
KeywordsPosition (finance)TrajectoryKalman filterInertiaComputer scienceSequence (biology)Particle filterAlgorithmVariable (mathematics)Extended Kalman filterControl theory (sociology)Artificial intelligenceMathematicsPhysics

Abstract

fetched live from OpenAlex

ABSTRACT: We have designed a new navigation algorithm that relies solely on measurements of vehicle position, velocity, and their error statistics. We consider the statistical confidence regions of position fixes as “sources” tending to “attract” the undetermined trajectory to pass through these regions. Based on these position fixes and their error statistics, a real-time potential field is constructed in which a mass particle with variable mass inertia is forced to move. To make the algorithm flexible to accommodate a changing navigation environment, we leave some parameters free and determine their values using a sequence of past observations and the least-squares criterion of discrepancies between position fixes and computed trajectory. A comparison with a Kalman filter navigation algorithm on real-life trajectories is also presented.

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)0.001
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: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.002
Threshold uncertainty score0.004

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.001
Scholarly communication0.0010.001
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0010.000

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 head0.008
GPT teacher head0.248
Teacher spread0.240 · 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

Citations2
Published2000
Admission routes1
Has abstractyes

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Same venueNAVIGATION Journal of the Institute of NavigationSame topicTarget Tracking and Data Fusion in Sensor NetworksFrench-language works237,207