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Determining Delivery Demand Area Distribution Using Effective Regions of Movement Clustering

2024· article· en· W4406322241 on OpenAlexaff
Elmer R. Magsino, Gerald P. Arada, Catherine Manuela L. Ramos

Bibliographic record

Venuenot available
Typearticle
Languageen
FieldEngineering
TopicUrban and Freight Transport Logistics
Canadian institutionsUniversity of the Fraser Valley
Fundersnot available
KeywordsCluster analysisComputer scienceMovement (music)Distribution (mathematics)Artificial intelligenceMathematics

Abstract

fetched live from OpenAlex

As more transport service providers traverse public roads to provide food and parcel delivery and ridesharing services, there is a need to analyze these delivery/service points to maximize provider profitability while minimizing harmful environmental effects. In this study, we utilize an urban empirical mobility dataset to extract important Global Positioning Systems (GPS) information where most transactions of delivery and services happened. In particular, we only utilized two-wheeled vehicular positions in the study since they offer more services as compared to four-wheeled vehicles. The urban map is uniformly partitioned into grids categorized by its vehicular capacity to locate highly demanded points. We then combine closely related grid positions into its corresponding effective regions of movement (ERMs) according to a preset vehicular capacity threshold. We also compute for the closeness centrality measure of these highly demanded locations and found that points within each ERM have short distances between them and a relatively larger distance among points from other ERMs. Given these findings, ERMs are spatially separated thereby locating the demand area distribution easily.

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 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)0.000
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: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.751
Threshold uncertainty score0.380

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
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 head0.027
GPT teacher head0.214
Teacher spread0.187 · 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 teacher head, 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

Citations0
Published2024
Admission routes1
Has abstractyes

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