Tigran Tchrakian

Title

Research Scientist

Bio

I am a research scientist at IBM Research Europe, Dublin in the NLP and Reasoning in Healthcare team.

I hold a Ph.D. from Trinity College Dublin.

Publications

FactCorrector : A Graph-Inspired Approach to Long-Form Factuality Correction of Large Language Models
- - Javier Carnerero Cano
  - Massimiliano Pronesti
  - et al.
- 2026
- ACL 2026
Conference paper
Building Trustworthy AI Collaborators: Factuality and Source Attribution in Agentic Workflows
- - Alessandra Pascale
  - James Barry
  - et al.
- 2025
- AGU 2025
Conference paper
FactReasoner: A Probabilistic Approach to Long-Form Factuality Assessment for Large Language Models
- - Radu Marinescu
  - Debarun Bhattacharjya
  - et al.
- 2025
- EMNLP 2025
Paper
WikiContradict: A Benchmark for Evaluating LLMs on Real-World Knowledge Conflicts from Wikipedia
- - Yufang Hou
  - Alessandra Pascale
  - et al.
- 2024
- NeurIPS 2024
Conference paper
Practical Perfusion Quantification in Multispectral Endoscopic Video: Using the Minutes after ICG Administration to Assess Tissue Pathology
- - Jonathan Epperlein
  - Mykhaylo Zayats
  - et al.
- 2021
- AMIA Annual Symposium 2021
Conference paper

Projects

Fluorescence-based Digital Surgery Decision Support
Analyzing and visualizing differences in blood flow patterns, made visible with fluorescent dyes and multispectral imaging.

Top collaborators

AP

Alessandra Pascale

Alessandra Pascale

Senior Research Scientist and manager, Accelerated Discovery, NLP and Inference on Graphs

RM

Radu Marinescu

Radu Marinescu

Research Staff Member

ED

Elizabeth Daly

Elizabeth Daly

STSM, Research Manager, Interactive AI Group

JC

Javier Carnerero Cano

Javier Carnerero Cano

Research Scientist - Trustworthy AI