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Record W4311680957 · doi:10.22215/etd/2022-15280

Methods for Gait Analysis in a Supportive Smart Home

2022· dissertation· en· W4311680957 on OpenAlexaff
Ashi Agarwal

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldComputer Science
TopicContext-Aware Activity Recognition Systems
Canadian institutionsCarleton University
Fundersnot available
KeywordsGaitAsynchronous communicationGait analysisComputer scienceCeiling (cloud)Interpolation (computer graphics)Work (physics)Protocol (science)Physical medicine and rehabilitationArtificial intelligenceSimulationMotion (physics)Real-time computingEngineeringTelecommunicationsMedicine

Abstract

fetched live from OpenAlex

According to study, the elderly's mobility habits are closely tied to cognitive decline and other age-related health problems.Regular gait analysis may help with the early detection of various disorders, but the gathering of daily ambient data is difficult with current technology.The potential of ambient sensors on the market for estimating gait speed is examined in this thesis.The thesis's first section analyses data gathered from four motion sensors that were arranged in a straight line on the ceiling as used in some wide scale studies.The findings of this work indicate that the communications protocol limits the accuracy of gait speed estimation, which prompted the investigation of AI-enabled privacyrespecting cameras.Initial results showed the camera performance was limited by low and asynchronous frame rate, which led to significant error margins.A method is proposed that reduces this to 6% using techniques based on regression and interpolation.2.5.1 Obtrusive Gait Assessment .................

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)0.002
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.005
Threshold uncertainty score0.018

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0020.002
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0010.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0050.003

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 head0.037
GPT teacher head0.388
Teacher spread0.351 · 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 designBench or experimental
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

Citations0
Published2022
Admission routes1
Has abstractyes

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