Muhammad Huzaifa Aftab

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Muhammad Huzaifa Aftab

Mechanical Engineering · University of Engineering and Technology Taxila

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Projects

Certified

Self-directed project

Machine Learning for Automotive

AI / ML · October 2026

78/ 100

A ProoV case study · educational project, not employment

Built an end-to-end used-car pricing analysis for VW and Audi listings: combined the datasets, explored price and mileage patterns, engineered predictive features, and compared Linear Regression with Random Forest using R² and MAE. The work culminated in a business-facing recommendation to use the Random Forest as a decision-support tool for CPO pricing, with model outputs interpreted through feature importance and operational impact.

Graded against

  • Exploratory Data Analysis20%
  • Feature Engineering25%
  • Model Building & Evaluation35%
  • Business Communication20%

Passed · pass mark 60/100

What stood out6
  • Built a clear VW-vs-Audi EDA with distributions, correlation heatmap, scatter plots, and brand-level price comparison.
  • Identified engine size, car age, and mileage as key pricing drivers and connected them to the observed correlations.
  • Compared Linear Regression against Random Forest using R² and MAE, and translated the results into a pricing recommendation for the CPO team.
  • Exploratory Data Analysis Across Segmented Brands
  • Leakage-Aware Feature Design
  • Model Comparison Using Multiple Regression Metrics
The work I submitted10 tasks

5 tasks · 6 lines · 5 written answers · 175 words

  • VW Sprint1 Complete56 characters
  • VW Sprint2 Complete61 characters
  • VW Sprint3 Complete59 characters
  • VW Business Insights1.5k characters
  • Jupyterlite Code2 lines
  • VW Sprint1 Complete1 word
  • VW Sprint2 Complete1 word
  • VW Sprint3 Complete1 word
  • VW Business Insights171 words
  • Jupyterlite Code1 word

Summarised on purpose — the submitted code and writing stay private so this page cannot be reused as an answer key. The full submission sits behind the verified certificate.

Verified certificateTamper-proof · issued by ProoV
Certified

Self-directed project

Predictive Maintenance: Industrial ML for Fault Detection

Condition-Monitoring Engineer · AI / ML · August 2026

78/ 100

A ProoV case study · educational project, not employment

Built a compact bearing-fault detector end to end: plotted a faulty vibration snapshot, used time-domain features including kurtosis, trained a shallow decision tree on training bearings only, and evaluated it on a held-out set with catch-rate and false-alarm rate. Also produced a maintenance memo defending a 0.50 alarm threshold with explicit cost trade-offs and a plain-language explanation for operations staff.

Graded against

  • Feature engineering (signal to honest numbers)25%
  • Held-out evaluation (honest measurement)25%
  • Cost-based threshold decision + memo25%
  • Compact model + embedded-budget justification15%
  • Plain-language explanation10%

Passed · pass mark 60/100

What stood out6
  • Used a depth-capped decision tree and explicitly stated depth 1 and 3 nodes against the embedded budget
  • Reported held-out catch rate and false-alarm rate rather than evaluating on training data
  • Wrote a maintenance memo that ties the threshold choice to concrete catch-rate and false-alarm numbers
  • Leakage-Free Model Training
  • Honest Held-Out Evaluation
  • Cost-Based Operational Decision-Making
The work I submitted18 tasks

10 tasks · 6.4k characters · Python · 8 written answers · 428 words

  • Initial Prediction62 characters
  • Load Plot Signal CodePython · 1.9k characters
  • Load Plot Signal205 characters
  • Example Rms WorkedPython · 698 characters
  • Time Features143 characters
  • Freq FeaturesPython · 1.1k characters
  • Train Classifier363 characters
  • Evaluation Heldout288 characters
  • Threshold Decision334 characters
  • Decision Memo1.4k characters
  • Initial Prediction9 words
  • Load Plot Signal Code163 words
  • Load Plot Signal15 words
  • Example Rms Worked72 words
  • Time Features10 words
  • Freq Features104 words
  • Train Classifier31 words
  • Evaluation Heldout24 words

Summarised on purpose — the submitted code and writing stay private so this page cannot be reused as an answer key. The full submission sits behind the verified certificate.

Verified certificateTamper-proof · issued by ProoV
2Projects completed
2Verified certificates
78Average score
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