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Kesav2k04/README.md

Kesav Kumar J

Information Technology graduate, first-author vision-language model evaluation researcher, and open-source patch author building scalable, resource-efficient AI systems. My work connects measurable research, distributed GPU infrastructure, and production-grade software engineering.

GitHub · LinkedIn · ORCID

Proof at a glance

Evidence Result Public artifact
POPE hallucination-evaluation audit Identified a tokenizer prefix-space artifact that deflated scores by up to 7 F1. Correcting the logit read-out raised the LLaVA-1.5 baseline by 6.13 points to 82.21 F1. Source · 9,000 prediction records · PyPI toolkit · Zenodo archive
Published distributed-GPU framework Published VisualPC: A Lightweight and Measurable Framework for Experimental Evaluation of Distributed GPU Execution at ICCET 2026, Chennai, ISBN 978-81-986418-1-6. Source · Live demo · Zenodo archive
International AI challenge Runner-Up, IBM SkillsBuild "AI Inside the Match" International Challenge, awarded $1,250 among 3,381 registrants and 307 projects, judged by a 19-member IBM panel. DecisionLens source
National hackathon National Finalist, Snapdragon Multiverse Hackathon, Bengaluru, July 2026, for the Sankat-Mochan offline disaster-response mesh. Sankat-Mochan source · Base model · GGUF model

Research and publications

Token-Set Choice Confounds POPE: A Systematic Audit of Yes/No Extraction in VLM Hallucination Evaluation

Under review, 2026 for the NeurIPS 2026 Workshop on Grounded and Faithful Vision-Language Models, VLM4RWD, Sydney.

  • Traced the tokenizer prefix-space artifact in POPE yes/no extraction and corrected the logit read-out, lifting the true LLaVA-1.5 baseline by 6.13 F1 points to 82.21 F1.
  • Re-evaluated six published mitigation methods against the corrected baseline. Several reported gains shrink or reverse after the correction.
  • Confirmed the confound across 4 VLMs, 3 tokenizer families, 9,000 queries, and 90 GPU-hours. Attention probing measured Cohen's d = -0.46.
  • Released pope-audit on PyPI, version 0.1.1, plus 9,000 prediction records on Hugging Face for reproducibility. The source is archived on Zenodo with a DOI.

VisualPC: A Lightweight and Measurable Framework for Experimental Evaluation of Distributed GPU Execution

Published, March 2026 at ICCET 2026, Chennai. ISBN: 978-81-986418-1-6. Proceedings are to be indexed in IEEE Xplore and SCOPUS.

  • Designed a hybrid cloud-edge Platform-as-a-Service where a FastAPI priority scheduler routes CUDA workloads through a Tailscale VPN mesh to cloud GPUs and Raspberry Pi 4B edge nodes.
  • Built a Next.js dashboard that streams live worker telemetry through Server-Sent Events.
  • Measured queue wait, execution, and network components across tensor payload sizes, with pytest integration tests, Playwright end-to-end tests, JWT authentication, and Dockerized deployment.

Submitted open-source patches

Project Contribution and validation Pull request
LangChain, langchain-openai Submitted a structured-output streaming warning fix that extends a maintainer change to synchronous and asynchronous generators. Validated against 517 tests, Ruff, and mypy. +8 / -2 PR #38625, closed
Future-AGI, agentcc-gateway in Go Submitted a founder-invited patch for an MCP schema-validation bypass where empty tool arguments skipped required-field checks, with a test-driven regression guard. +43 / -1 PR #1405, open
EleutherAI, lm-evaluation-harness Submitted a just-in-time lazy loader using native Python @property descriptors to replace eager dataset loading in lm_eval/api/task.py, reducing multi-task startup memory without new dependencies. +49 / -7 PR #3862, open
Hugging Face, lighteval Submitted a fail-fast static linter for custom evaluation tasks using Python reflection, inspect, and typing; refactored past the Ruff C901 complexity gate and added an in-memory pytest suite. +220 PR #1268, open

Selected systems

RepoMind | OpenAI Build Week, July 2026

FastAPI React GPT-5.6 Terra MCP

  • Built a repository preflight engine that orchestrates four parallel GPT-5.6 processes limited to read-only workspace tools, mapping module boundaries, risk zones, and test coverage before autonomous code execution.
  • Implemented an application-layer firewall that silently drops model outputs failing strict file-path and line-range validation. Exposed the verified pipeline through a React dashboard, CLI, and local stdio MCP server.

Sankat-Mochan | Snapdragon Multiverse Hackathon finalist, July 2026

Kotlin BLE mesh LoRa FastAPI On-device LLM

  • Built an off-grid SOS network where Android phones relay compressed voice reports phone-to-phone over Bluetooth Low Energy, then bridge them over kilometres through a 433 MHz LoRa gateway on Raspberry Pi and Arduino.
  • Fine-tuned and released Sahayak-E2B, a Gemma-based model, with QLoRA. Exported GGUF for fully offline triage on a Snapdragon NPU and open-sourced both Base and GGUF variants on Hugging Face.

DecisionLens | IBM SkillsBuild runner-up, June 2026

RAG IBM Granite 3.1 BM25 + embeddings React

  • Developed a hallucination-resistant explainer for football VAR calls. A hybrid BM25-plus-vector retriever over 593 rule chunks feeds IBM Granite 3.1 8B under a strict JSON schema and abstains when evidence is weak.
  • Validated it on a 50-question adversarial suite. It abstains on out-of-scope queries instead of fabricating and scored full marks on citation, keyword, and decision-type checks.

YOLOv10 + CBAM Leaf-Disease Detection | Faculty-invited thesis, June 2026

PyTorch TensorRT

  • Extended a faculty-designed YOLOv10-Nano, 96.2% mAP@0.5, and CBAM-MobileNetV2, 93.6% accuracy, pipeline to 5,010 images.
  • Executed INT8 TensorRT layer fusion for sub-100 ms Jetson Nano latency under 50 MB.

Awards and research collaboration

  • National Finalist, Snapdragon Multiverse Hackathon, Bengaluru, July 2026, for Sankat-Mochan.
  • Runner-Up, 2nd place, IBM SkillsBuild "AI Inside the Match" International Challenge, June 2026. Awarded $1,250 among 3,381 registrants and 307 projects, judged by a 19-member IBM panel.
  • Research Collaborator, MSME Government Grant, 2025. Faculty-invited to design machine-learning algorithms for a sanctioned social-media fake-ID-detection project worth INR 13.5L, about US$14,000.

Industry experience

DevOps Intern | iStudio | June 2025 to August 2025

MongoDB Docker Jenkins GitHub Actions

  • Automated GitHub Actions deployments, cutting release cycles by 25% and removing manual steps.
  • Built live MongoDB analytics dashboards for demos and ran Docker and CI/CD reliability checks that held 97.8% test-phase uptime.

Java Development Intern | NxtLogic Software Solutions | April 2025 to May 2025

Java Spring Boot AWS EC2

  • Integrated analytics modules into Java REST APIs and tuned Spring Boot with EC2 deployment strategies.
  • Improved backend response time by 18% and cut server error rates by 12% under sustained load testing.

Education, certifications, and affiliations

B.Tech, Information Technology | Sri Krishna College of Technology, India | October 2022 to April 2026 | CGPA: 8.41 / 10

  • Sri Krishna College of Technology is autonomous, NAAC A, and NBA-accredited.
  • Awarded 10/10, O, Outstanding in the Semester 8 capstone, Project Work Phase II, for VisualPC, with a cumulative top-5% department cohort rank.
  • Relevant coursework: Artificial Intelligence, Data Visualization, Computer Networks, Cloud Computing and Containerization, Data Structures and Algorithms, and Operating Systems.
  • NVIDIA DLI, Deep Learning and AI on Jetson Nano, 2024.
  • IEEE Student Member and IEEE Computer Society Member.

Technical foundation

Area Technologies
Languages Python, Java, C++, Go, Kotlin, JavaScript/TypeScript, SQL
AI and ML PyTorch, Hugging Face, QLoRA/PEFT, scikit-learn, RAG, LLM evaluation, NF4 and INT8 quantization, TensorRT
Cloud and DevOps AWS, EC2, S3, VPC, GCP, Docker, GitHub Actions, Jenkins, Linux, Tailscale
Web and data React, Next.js, Spring Boot, FastAPI, REST, PostgreSQL, MySQL, MongoDB
Testing and tools pytest, Playwright, JMeter, Selenium, Postman, Git, Ruff, mypy

Connect

GitHub · LinkedIn · ORCID

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