Deepanshu Mody

Data Scientist

New York, NY

Deepanshu Mody

Data scientist building retrieval, classification, and LLM evaluation systems. I pair production ownership with rigorous experimentation, model validation, and research on robustness and efficiency.

Experience

Jun 2025 - Aug 2025

Pfizer

Statistics & AI/ML Intern

Built an AWS-based agentic oncology intelligence system that let researchers query emerging drug-disease-target relationships extracted from scientific conference abstracts, achieving 87% accuracy on the MIRAGE benchmark, 7.6 points above baseline.

More details
  • Designed ontology-driven normalization using HGNC and DOID to standardize biomedical entities and identifiers across literature sources.
  • Built a Neo4j knowledge graph with approximately 18,000 entities and 95,000 evidence-weighted relationships, each linked to canonical identifiers, source text, and provenance.
  • Integrated eight retrieval tools into a multi-agent LangGraph workflow with task-aware routing between Gemini Flash and DeepSeek-R1, so answers returned auditable evidence paths through planning, graph traversal, validation, and synthesis.

Jul 2023 - Jul 2024

Incedo Inc.

Data Scientist

Productionized a hybrid retrieval stack with BM25, dense retrieval, and cross-encoder reranking across 1,200+ technical manuals for a telecom router company. Top-3 exact match rose from 41% to 84%, answer F1 from 68% to 92%, and p95 latency fell from 2.3 seconds to 900 milliseconds.

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  • Developed backend components for a customer-facing document-intelligence pipeline that converted scanned PDFs, forms, and tables into schema-validated structured records, achieving 95% exact field accuracy across 5,000 labeled fields from 800 documents and reducing manual data-entry and correction time by approximately 60%.
  • Fine-tuned open-weight LLMs for medical and telecom named-entity recognition, improving micro-F1 from 0.75 zero-shot to 0.90 on a 2,500-example in-domain test set.
  • Measured out-of-domain decay to 0.61 F1 and used the analysis to define when fine-tuning outperformed prompt-based extraction.
  • Deployed document QA and multimodal RAG using FAISS on Azure ML with evaluation guardrails for relevance, citation support, factual consistency, completeness, and jailbreak behavior. The suite reached 87% precision and 82% recall, routing 12% of outputs to human review.

Jan 2023 - Jun 2023

Kinara AI

Software Engineering Intern

Prototyped a RISC-V vector extension and LLVM backend with custom lowering for vectorized memory and scatter-gather operations, accelerating ML-kernel execution in cycle-accurate simulation.

Feb 2026 - May 2026

Living Brands AI

Data Analyst Intern

Built the evaluation backend for a platform that lets brand-strategy teams benchmark prominence across six LLMs and more than 10,000 weekly prompts, tracking first-mention rank, share of voice, sentiment, and citation coverage.

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  • Developed the statistical methodology for the platform's cross-brand comparisons, so it reports one brand as surfacing above another only when the difference across sampled prompts is statistically significant rather than sampling noise.
  • Processed approximately 1 million responses through an embedding-retrieval and two-stage classifier, reaching approximately 93% intent accuracy and routing ambiguous mentions to human review.
  • Delivered React and TypeScript dashboards for weekly client reporting, cutting recurring cross-model analysis from approximately two days to under two hours.

Selected work

Robustness & Evaluation of Refusal in Open-Weight LLMs

Developed a training-time defense and evaluation harness for an open-weight LLM, then stress-tested whether refusal behavior could be removed through low-rank linear ablations.

Joint Optimization for Greedy Longest-match Tokenization (JOLT)

Developed a Gurobi mixed-integer optimization approach for tokenizer vocabulary selection that matches the greedy decoding rule used by WordPiece.

PhysioCoach: Real-Time AI Physical-Therapy Coach

Built a fully local physical-therapy coach that combines Qwen2.5-VL form feedback, MediaPipe repetition tracking, range-of-motion analysis, and spoken guidance in the browser.

More projects

Input-Only Suppression of Evaluation-Awareness Latents

Consistently suppressed targeted activations, including fully turning off one causally validated feature, but found that readable activations do not always control behavior.

Imbalanced Binary Classification on Graph-Structured Data (RNA GNNs)

Improved ROC-AUC by 6.2 percentage points over CNN baselines and shipped an interactive 3D demo.

World-Model Training & Forecasting for Robot Locomotion

Evaluated motion forecasts across 1.6, 3.2, and 5.0 second horizons using deployment-focused trajectory metrics instead of single-step error alone.

Axentra & LaRa-Home · NYU Leslie eLab Startup Bootcamp

Ran customer discovery and MVP scoping to validate pain points across clinical research operations and architecture / building-code review.

Selected publications

  • Joint Optimization for Greedy Longest-match Tokenization

    Accepted · COLM 2026 Tokshop · Co-first author

  • Minimizing Targeted Activations: Input-Only Suppression of Evaluation-Awareness Latents in Large Language Models

    Preprint · arXiv · 2026

  • Validity of Machine Learning-Based COVID-19 Prediction

    Peer-reviewed · PLOS ONE · 2025

Earlier publications
  • Auto Encoders for Communication-Efficient Distributed Learning

    Workshop paper · AAAI Deployable AI · 2023

  • AI in Coronary Physiology: Where Do We Stand?

    Review article

  • Exploring Protein Design Landscapes with Semi-Supervised Adaptive Sampling

    22nd Int'l Conference on Bioinformatics, Brisbane · Nov 2023

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Education

  • New York University

    M.S. in Data Science

    Aug 2024 - May 2026

  • Birla Institute of Technology and Science, Pilani

    B.E. in Computer Science + M.Sc. in Biological Sciences

    Aug 2018 - Jun 2023

Get in touch

I'm open to data science, applied science, machine learning, and research opportunities.

dm6262@nyu.edu