kaan hacihalilogluistanbul
000%leaving deep space

projects

mostly the thesis these days:

active

refusal geometry in llms

msc thesis at sabancı: how refusal and harmfulness live in the internal geometry of llms. ask a model something harmful and it refuses. that refusal can be shown as a direction in activation space, and jailbreaks work by pushing the model off it. i am mapping what those attacks actually do to the representations. no public repo yet, we will see where it goes.

  • Mechanistic Interpretability
  • Refusal Directions
  • LLM Safety
earlier work

Neural Text Summarization: Comparative Analysis of Transformer Architectures

Comparative study of BART and T5 for automated news summarization, with sentiment-aware evaluation and ROUGE-based benchmarking.

  • Transformers
  • BART
  • T5
  • NLTK
  • Sentiment Analysis
  • ROUGE Evaluation

source

Multi-Label Classification System for Financial Recommendations

Multi-label recommendation system for İş Bankası, built with one-vs-all XGBoost, feature engineering, and ensembling.

  • XGBoost
  • Multi-Label Classification
  • Feature Engineering
  • Financial Analytics
  • Kaggle

source

Machine Learning Algorithm Implementations

A collection of practical machine learning implementations: boosting, ensemble techniques, and feature engineering workflows on real-world datasets.

  • XGBoost
  • Ensemble Methods
  • Feature Engineering
  • Data Science
  • Algorithm Implementation

source