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Record W2149357833 · doi:10.2298/jac0901001s

A portable measurement system for the evaluation of human gait

2009· article· en· W2149357833 on OpenAlex
Filip Stefanovic, Héctor Caltenco

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

VenueJournal of Automatic Control · 2009
Typearticle
Languageen
FieldEngineering
TopicMuscle activation and electromyography studies
Canadian institutionsMcGill University
FundersDanmarks GrundforskningsfondNational Research Foundation
KeywordsComputer scienceGaitGait analysisFunctional electrical stimulationAdaptive neuro fuzzy inference systemLift (data mining)AccelerometerFuzzy logicArtificial intelligenceFuzzy control systemSimulationPhysical medicine and rehabilitationData miningMedicine

Abstract

fetched live from OpenAlex

A tool has been developed which can be used to evaluate human gait in a more detailed manner. Its purpose is to record data from an individual during gait then categorize and analyze the intrinsic phases with neuro-fuzzy techniques. The system is simple to use, adaptive, highly mobile, and does not require calibration. The hardware consists of four accelerometers and four force sensitive resistors to record data during walking which is then prepared and collected by a digital device and PDA computer. The gait data is passed into an intelligent fuzzy inference system managed by custom defined fuzzy rules to be classified into four stance phases (heel strike, flat foot, heel lift, toe push-off), and three swing phases (initial flexion, terminal flexion, and terminal extension). After the fuzzy system was trained using data from five healthy subjects, the system's representative gait classification root mean squared error dropped from 0.2975 to 0.1200, showing a much improved ability to categorize human gait, despite its varied nature. The system represents a robust tool, which can be used in a clinical environment for the analysis of human gait in rehabilitative applications such as rule based control generation for functional electrical stimulation, and gait quality analysis.

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)0.002
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: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.784
Threshold uncertainty score0.173

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.000
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 head0.035
GPT teacher head0.268
Teacher spread0.233 · 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