Skip to content
View arpitkumar2004's full-sized avatar
🎯
Focusing
🎯
Focusing

Highlights

  • Pro

Block or report arpitkumar2004

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
arpitkumar2004/README.md

PortfolioLinkedInCodeforcesEmailKaggle

AmazonStatus

Professional Summary

Final-year student at IIT Kharagpur (Integrated Dual Degree, Chemical Engineering and micro-specialization in Artificial intelligence and Application & High performance computing, graduating April 2027). I build production ML systems and do speech/NLP research — the kind that ships with monitoring, gets measured, and defends its numbers. Research → Wav2Vec2 + WavLM-BiLSTM fusion for native language identification from L2 English speech. 0.88 val accuracy across 5 Indian languages. Competitions → Top 0.5% globally, Amazon ML Challenge 2025 (50,000+ teams). 1st place, GC OpenSoft '25 (Deloitte-sponsored). 1st place, GC Data Anytics'25 (Evva health). Math/Algorithms → Codeforces Expert (peak 1612 · _Badassium). AIR 135, Integral Cup 2026 S1 across Probability and Statistics, Linear Algebra & Integral Analysis, Optimization Techniques.

Research

Native Language Identification from L2 English Speech   

Advanced Technology Development Centre (ATDC), IIT Kharagpur  ·  May – Jul 2025
Supervisor: Prof. Shyamal Kumar Das Mandal

Benchmarked 7 deep learning architectures on the NISP dataset — from CNN and ResNet-18/50 baselines to transformer-based SSL fusion models — across 5 Indian L1 languages (Hindi, Telugu, Tamil, Kannada, Malayalam). Final model: Frozen Wav2Vec2 + WavLM encoder layers → BiLSTM head. 0.88 validation accuracy, state-of-the-art on this task. UMAP embeddings revealed tight, well-separated Telugu/Malayalam clusters and quantifiable Hindi-Tamil phonetic overlap — interpretable signal beyond the classification score.

PyTorch Wav2Vec2 WavLM BiLSTM HuggingFace Log-Mel MFCCs UMAP

Selected Work

Project Result Stack
Multimodal Price Prediction Top 0.5% Amazon ML 2025 · SMAPE 25.45 · 469ms p95 latency · SHA-256 model fingerprinting · 46+ MLflow runs PyTorch · SBERT · CLIP · XGBoost · LightGBM · CatBoost · Ridge · FastAPI · MLflow · DVC · DagsHub
RAG Employee Support Platform (repo uploading) 1st Place GC OpenSoft '25 (Deloitte) · −35% resolution time · −40% hallucination rate · −30% cost/session · +50% API throughput LangChain · OpenAI · FAISS · Chroma · FastAPI · Docker · Prometheus · Grafana · OpenTelemetry
Text Summarization System Fine-tuned BART pipeline · end-to-end CI/CD deployment PyTorch · HuggingFace · FastAPI · Docker · GitHub Actions
Portfolio Website Role-personalized SPA · FastAPI backend · live ML data context React · TypeScript · Vite · Tailwind · FastAPI

Tech Stack

Technology Name
NLP / Speech AI Wav2Vec2 WavLM BERT SBERT CLIP BART LangChain FAISS Chroma vLLM HuggingFace
ML / Deep Learning Pytorch TensorFLow Scikit-learn XGBoost LightGBM CatBoost JAX OpenCV
MLOps & Infrastructure Docker Github Actions MLflow DVC DagsHub Prometheus Grafana OpenTelemetry
Backend / Serving FastAPI Flask async Python REST JWT
Languages
Cloud & Tools

Pinned Loading

  1. A_ML_25 A_ML_25 Public

    Production-Ready Smart Pricing System Pipeline for E-Commerce

    Python 2

  2. Text-Summarizer-Project Text-Summarizer-Project Public

    This project is an end-to-end deep learning-based text summarization system designed to automatically generate concise and informative summaries from large volumes of textual data.

    Jupyter Notebook 2

  3. data_science-portfolio-website-final data_science-portfolio-website-final Public

    My portfolio Website which showcase my projects and experiences

    TypeScript 2

  4. Assigmnet-PMS Assigmnet-PMS Public

    Course: Process Modeling and Simulation (CH62003) -- Prof. Sourav Modal, Prof. Abhishek Kumar Gupta -- IIT Kharagpur

    Jupyter Notebook 1