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nabeegh-khan/README.md

Nabeegh Khan

Master of Engineering (MEng) student in Electrical & Computer Engineering at the University of Toronto, graduating April 2027, with an emphasis in Data Analytics and Machine Learning. Licensed Professional Engineer (P.Eng) and PMP, with six years in engineering, most recently four years of nuclear electrical and instrumentation design, now working in applied machine learning.

My work sits between applied NLP and the research methods that make a result mean something: retrieval and its evaluation, parameter-efficient fine-tuning and compression, and the annotation, statistics and record linkage underneath. Alongside that, engineering-education research as a graduate research assistant, and clinical NLP as a research volunteer. I try to build things that are reproducible and reported honestly, including the results that came out modest or negative.

ORCID · nabeegh.khan@mail.utoronto.ca · Cambridge, Ontario

Now

  • Research Volunteer, Artificial Intelligence for Mental Health (AI-M) Program, University of Toronto, with Unity Health Toronto and University Health Network, since September 2026. Retrieval-augmented extraction of clinical scale items (PHQ-8 depression, PCL post-traumatic stress) from interview transcripts on the public Distress Analysis Interview Corpus, Wizard of Oz. The design answers an item only where the transcript carries evidence and abstains otherwise, so coverage is reported alongside accuracy rather than a single score.
  • MEng student at the University of Toronto, graduating April 2027. Open to part-time research and analysis work through the coming year, and full-time roles from May 2027.
  • Based in Cambridge, Ontario. Open to roles in the Waterloo Region, the Greater Toronto Area, and remote across Canada.

Selected projects

Project What it does Stack
3GPP Specification Assistant (RAG) Retrieval-augmented QA over 13 3GPP specifications: 4,493 pages extracted with PyPDF and recursive character splitting into 18,187 chunks in ChromaDB, served through FastAPI with citations back to source document and page. Evaluated with RAGAS across four metrics; the weakest traced to segmentation rather than the model, since fixed-size chunking was separating tables from their headers. LangChain, ChromaDB, GPT-4o-mini, FastAPI, Streamlit, RAGAS, LangSmith
AI in the Classroom: Mixed-Methods Survey + Reddit Convergent design integrating 625 published survey responses with 465 Reddit posts I collected, coded deductively with spaCy PhraseMatcher against pre-defined categories and inductively with BERTopic. Ordinal regression found attitude toward use the dominant predictor of adoption (OR=8.32, p<0.001); self-report and discourse diverge on academic writing. BERTopic, VADER, spaCy, statsmodels, Reddit JSON
AI-in-Education Bibliometric + NLP Analysis 4,403 records harvested from OpenAlex with cursor pagination and rate-limit handling, joined to Semantic Scholar on DOI and deduplicated on the OpenAlex identifier. BERTopic surfaced 27 clusters; a chi-square test confirmed a post-ChatGPT topic shift (χ²=323.87, p<0.0001). BERTopic, VADER, OpenAlex API, pandas, scipy
LWM-LoRA: Scenario-Adaptive mmWave Beam Prediction LoRA fine-tuning of the Large Wireless Model for 64-beam prediction across three DeepMIMO scenarios. Rank-4 adapters train 4.82% of parameters and reach 76.8% top-1; cross-scenario transfer with 20% of target data matches full fine-tuning within 0.3%. ONNX Runtime on CPU runs 3.38x faster than PyTorch on GPU for single-sample inference at no accuracy loss; INT8 quantization cuts model size 69.5% for a 2.5-point accuracy cost and no latency gain. PyTorch, HuggingFace, LoRA/PEFT, DeepMIMOv3, ONNX Runtime, W&B
Real-Time Anomaly Detection MLOps Streaming pipeline built as a src/ package: Kafka into Spark Structured Streaming, rolling features materialised into a DuckDB feature store with dbt models and schema tests, an LSTM autoencoder tracked in MLflow, a Dockerised FastAPI endpoint with Pydantic validation, Airflow orchestration and Evidently drift monitoring. ROC-AUC 0.64 on a hard unsupervised task, reported with its limitations. Kafka, Spark, DuckDB, dbt, PyTorch, MLflow, Airflow, FastAPI, Docker, Evidently
Ontario Electricity Demand Forecasting 109,056 hourly records (Jun 2013 – Nov 2025) assembled from four sources with three join keys and two time granularities: IESO hourly demand, Environment Canada hourly weather downloaded month by month from station 51459, NASA POWER daily solar irradiance broadcast across hours, and Ontario statutory holidays left-joined so no hours were dropped. 13 engineered features including 1h/24h/168h demand lags, cyclical sine/cosine time encodings and heating/cooling degree days. Five models benchmarked; a 3-layer network reached RMSE 203.92 MW and R² 0.9928, cutting error 50.7% against the linear baseline. Three-person course project (ECE1513H); I owned data collection, feature engineering, model implementation and the report. pandas, scikit-learn (MLPRegressor), XGBoost, requests
Big Data Analytics: Spark & Azure Synapse MEM6287, Advanced Data Analytics, University of Ottawa, group of three. Distributed processing with Spark (RDD and DataFrame APIs, Scala on Databricks) and cloud SQL analytics on Azure Synapse over multi-file text corpora and partitioned retail data. A second healthcare component used Power BI with a geospatial join, linking patient encounters to dwelling value and gross rent by Forward Sortation Area. Apache Spark, Scala, Databricks, Azure Synapse, T-SQL, Power BI
DeepSense 6G V2V Beam Prediction Beam prediction on 112,189 real vehicle-to-vehicle measurements at 60 GHz. Random Forest reached 22.6% top-1, beating every deep model I tried; a DQN analysis traced its ceiling to feature compression. PyTorch, scikit-learn, DeepSense 6G, Gymnasium
6G Massive MIMO Resource Allocation DQN versus supervised learning for power allocation across 7 cells and 70 users. Supervised reward regression matched the DQN controller at 4.4× the random baseline, a cheaper alternative to RL on this problem. PyTorch, Stable-Baselines3, Gymnasium

Research experience

Research Assistant, ISTEP, University of Toronto — May to August 2026. Quantitative analysis of roughly 4,700 responses across three Faculty surveys under Dr. Qin Liu: chi-square with permutation p-values, Fisher's exact, Mann-Whitney U, two one-sided tests for equivalence, logistic regression and k-means, with Benjamini-Hochberg and Bonferroni corrections across 74 tests. Built a record linkage matching 723 students across two survey years by encrypted identifier. Conducted one semi-structured interview and co-led another under a Health Sciences REB protocol. Co-authored the research brief delivered to a Vice Dean and Deans of Undergraduate Studies.

Research Assistant, ISTEP, University of Toronto — May to August 2025. Analysis of a 229-student generative-AI survey under Dr. Qin Liu, on the Students' User Experience with Generative AI instrument. Built the REDCap ingestion pipeline and cut the same data three ways for different partners: total respondents, engineering undergraduates at n=67, and undergraduates at n=79 against graduate students at n=28. Ran 46 breakdown tests across student status, degree level and disability using chi-square, Mann-Whitney U and Kruskal-Wallis with Cramér's V effect sizes and APA reporting. Hand-coded 637 open-ended responses across eight questions against consolidated codebooks, and ran the AI-assisted coding pipeline those hand codes checked, adapting code inherited from prior work-study students and moving it across three model versions: TF-IDF and k-means clustering, then a two-round OpenAI protocol per cluster, which I established was not reproducible because a fixed seed still produced materially different codebooks between runs. Scored sentiment with TextBlob using a per-student aggregation rule that preserved negative tone, and built the Q-methodology concourse behind the interview study by coding 44 of 91 literature statements for sentiment, valence and theme.

Presentations. Podium presentation at UTERC 2026 on whether an undeclared-entry pathway supported disciplinary exploration; poster at UTERC 2025 on student adoption of generative AI. Both with Dr. Qin Liu.

Earlier data work

Graduate coursework at the University of Ottawa, all of which predates any use of AI tools and was done without them. The Spark and Azure Synapse work from MEM6287 is in the projects table above.

MEM5300, Principles of Data Analytics. Full CRISP-DM pipeline in IBM SPSS Modeler over 20,867 records extracted from 800 images of the Avila Bible, classifying the work of 12 copyists. A data audit on the type node found large outliers and no missing values; fractional ranking binning converted z-scored features into a continuous 0–19 range while keeping 100% valid records, benchmarked against six iterations of an outlier and extreme SuperNode using nullify and algorithm imputation. A heavily imbalanced target was balanced with a boost node before partitioning, then a C5.0 decision tree, an artificial neural network and K-Means clustering were compared. Group of five; I ran the data export and deployment, the K-Means report node, independent verification of the team's models, and produced the report.

MEM5265, Business Intelligence and Performance Management. Delivered an optional session on data cleansing methodology drawn from the work above, covering data warehousing and star schema design.

Skills

NLP & retrieval: LangChain, ChromaDB, OpenAI embeddings, RAGAS retrieval evaluation, LangSmith, BERTopic, sentiment analysis with VADER and TextBlob, spaCy and PhraseMatcher, NLTK, TF-IDF, k-means, topic modeling

Foundation models: HuggingFace Transformers, LoRA/PEFT, ONNX Runtime, INT8 quantization, Weights & Biases

Machine learning: PyTorch, scikit-learn, XGBoost, CNN/LSTM/RNN, Random Forest, SVM, reinforcement learning (DQN, Stable-Baselines3, Gymnasium), feature engineering

Statistics & research methods: chi-square test of independence with permutation p-values, Fisher's exact per option, Mann-Whitney U, Kruskal-Wallis, ordinal and binary logistic regression, two one-sided tests for equivalence, Haberman post-hoc residuals, Benjamini-Hochberg and Bonferroni correction, Cramér's V and rank-biserial effect sizes, APA-style reporting, statsmodels, scipy

Qualitative & survey methods: hand coding against a codebook, inductive codebook development across rounds, model-assisted coding validated against human assignment, Q-methodology concourse construction, semi-structured interviews under REB protocol, REDCap survey data, select-all-that-apply handling, record linkage, de-identification, TCPS 2: CORE-2022

Data collection & linkage: REST API harvesting with cursor pagination and rate limiting (OpenAlex, Semantic Scholar, NewsAPI, YouTube Data API, Reddit JSON), text extraction from PDFs (PyPDF, recursive character splitting), record linkage, schema and value-code reconciliation, deduplication, de-identification

Data engineering & pipelines: Kafka, Spark Structured Streaming (RDD and DataFrame APIs), DuckDB, dbt, Databricks, Azure Synapse, Airflow, ETL design

Serving & MLOps: MLflow, Evidently, Docker, FastAPI, Pydantic, Streamlit, drift monitoring

Wireless domain: mmWave beam prediction, beamforming, massive MIMO, V2V, DeepMIMO and DeepSense 6G

Languages & tools: Python, Scala, SQL, Git, Jupyter, pandas, NumPy, Matplotlib, Seaborn, Plotly, IBM SPSS Modeler, Power BI

A note on tooling

My own projects above were built with significant AI-assisted coding; I used Claude (Anthropic) as a coding assistant. I scoped the questions, chose the datasets and methods, and ran, validated and interpreted the results. Each repository documents this in its README. The research assistantships were assisted in prompt design and model-assisted analysis through the University's licensed accounts, and I keep a dated log of that use. The University of Ottawa coursework predates all of this and was done without AI assistance.

Pinned Loading

  1. 3gpp-rag 3gpp-rag Public

    Retrieval-augmented QA over 14 3GPP NR specs (4,493 pages), with cited answers and RAGAS evaluation. Ask a spec question, get an answer grounded in the source with the page cited.

    Jupyter Notebook 2

  2. ai-education-mixed-methods ai-education-mixed-methods Public

    Mixed-methods study of student AI perceptions, triangulating survey data (n=625) with 465 Reddit posts. Surveys rate AI highly while the academic-writing discourse is the most negative topic, a uti…

    Jupyter Notebook

  3. 6g-lwm-beam-prediction 6g-lwm-beam-prediction Public

    LoRA fine-tuning of the LWM wireless foundation model for 64-beam mmWave prediction across three DeepMIMO scenarios. Rank-4 adapters (4.82% of parameters) match full fine-tuning within 0.3 points o…

    Jupyter Notebook

  4. real-time-anomaly-mlops real-time-anomaly-mlops Public

    End-to-end streaming MLOps pipeline for time-series anomaly detection on the NAB benchmark: Kafka, Spark, MLflow, FastAPI, Airflow, and Evidently wired together across the full lifecycle.

    Jupyter Notebook

  5. ai-education-bibliometric-analysis ai-education-bibliometric-analysis Public

    Bibliometric and NLP study of 4,403 AI-in-education papers (2015–2025). Publication volume grows ~30.7%/year, and the topic mix shifts significantly after ChatGPT across 27 BERTopic clusters.

    HTML

  6. Ontario-Electricity-Demand-Forecasting Ontario-Electricity-Demand-Forecasting Public

    Short-term hourly electricity demand forecasting for Ontario, comparing five ML models on 109,000+ records from IESO, weather, and solar data. Course project (University of Toronto, 2025).

    Jupyter Notebook