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Record W2149360298 · doi:10.1061/9780784412329.105

Vision-Based Recognition of Dirt Loading Cycles in Construction Sites

2012· article· en· W2149360298 on OpenAlex

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

VenueConstruction Research Congress 2012 · 2012
Typearticle
Languageen
FieldEarth and Planetary Sciences
Topic3D Surveying and Cultural Heritage
Canadian institutionsUniversity of Toronto
Fundersnot available
KeywordsExcavatorDirtTruckComputer scienceAutomationCognitive neuroscience of visual object recognitionObject detectionProductivityMachine visionObject (grammar)Artificial intelligenceEngineeringPattern recognition (psychology)Automotive engineeringCivil engineering

Abstract

fetched live from OpenAlex

Automated control of production lines in different segments of manufacturing has been advanced due to emergence of sensing devices and the repetitive character of the processes. The construction industry, however, still suffers from inefficiencies in real-time control of activities due to the manual practice of monitoring, and the fragmented and temporary nature of construction projects. Several sensing technologies including computer vision-based systems have been introduced to address this issue on construction sites. Earthmoving projects are one of the most suitable areas to employ vision-based techniques to extract productivity data because it is possible to select clear sightlines and earthmoving equipment are relatively easy to recognize. In addition to challenges of developing efficient object detection and tracking algorithms, activity recognition based on collected data from detection and tracking engines is yet to be tackled. In this paper, a logical framework is introduced that combines object recognition, tracking, and rational events to recognize dirt loading to a dump truck by a hydraulic excavators, and measure the working cycles and idle times of the earthmoving plants. This logical algorithm showed promising performance in which the variations were caused by deficiencies of recognition and tracking engines rather than the activity recognition algorithm.

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 categoriesInsufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.220
Threshold uncertainty score0.997

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.001
Scholarly communication0.0000.001
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0040.000

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 head0.091
GPT teacher head0.337
Teacher spread0.246 · 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