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Assessment of Post-Stroke Motor Function Weakness using Pressure Sensor Data

2021· article· en· W4206958905 on OpenAlexafffund
Aakash Bhatt, Nitya Shah, MacKenzie Horn, Sahil Bhatt, Svetlana Yanushkevich, Mohammed Almekhlafi

Bibliographic record

Venue2021 IEEE Symposium Series on Computational Intelligence (SSCI) · 2021
Typearticle
Languageen
FieldMedicine
TopicStroke Rehabilitation and Recovery
Canadian institutionsUniversity of Calgary
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsWeaknessStroke (engine)Motor functionPhysical medicine and rehabilitationRecallBlood pressureMuscle weaknessMedicinePhysical therapyPsychologyInternal medicineSurgeryEngineering

Abstract

fetched live from OpenAlex

A stroke is a neurological condition in which the brain is deprived of oxygen and nutrients due to the reduced supply of blood it. One of the signs of stroke is weakness on one side of the body. This weakness can be captured using a pressure sensor mattress which captures the patients position on the mattress. In this paper, a LSTM model is developed that uses pressure data and classifies between left and right sided stroke induced motor weakness. Data is collected from 25 post stroke patients over a course of 48 hours in a clinical setting. An average recall and precision of 69.85% and 62.76% is achieved for binary classification. A per patient average recall of 67.82% ± 18.25% is achieved.

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)0.003
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.002
Threshold uncertainty score0.005

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.003
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0010.000
Insufficient payload (model declined to judge)0.0010.001

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 head0.042
GPT teacher head0.335
Teacher spread0.293 · 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 designObservational
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
Published2021
Admission routes2
Has abstractyes

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Same venue2021 IEEE Symposium Series on Computational Intelligence (SSCI)Same topicStroke Rehabilitation and RecoveryFrench-language works237,207