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Record W2981816395 · doi:10.22215/etd/2019-13400

A Recommendation System based on Clustering and Classification for Optimal Trajectory Analysis

2019· dissertation· en· W2981816395 on OpenAlexaff
Rami Ibrahim

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldComputer Science
TopicData Management and Algorithms
Canadian institutionsCarleton University
Fundersnot available
KeywordsCluster analysisComputer scienceNaive Bayes classifierData miningClassifier (UML)Traffic analysisTrajectoryBayes' theoremMachine learningArtificial intelligenceBayesian probability

Abstract

fetched live from OpenAlex

Moving objects such as people, animals, and vehicles have generated a huge amount of spatiotemporal data by using location-capture technologies and mobile devices. There is a high demand to analyze this collected data and extract the desired knowledge. In this study, we built a recommendation system based on four data mining techniques which are clustering, classification, sequential pattern mining, and time series analysis. We have focused on predicting traffic status in an effective way by considering the trip destination which can be useful for passengers. We applied clustering and sequential pattern mining to detect taxi trips movement in different areas, then we applied the Nave Bayes classifier to predict the traffic status of each trip. With the real taxi trips data of 441 taxis, we performed qualitative and quantitative analysis for our clustering method, then we evaluated the accuracy of the classification models. The results show that our recommendation system can achieve 70% accuracy in predicting traffic status.

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: none
GenreCandidate signal: Methods · Consensus signal: none
Teacher disagreement score0.982
Threshold uncertainty score0.686

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.000
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 head0.028
GPT teacher head0.278
Teacher spread0.249 · 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
GenreMethods

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
Published2019
Admission routes1
Has abstractyes

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