Nikolaos Pappas

Researcher, AWS AI Labs

Joined

July 2019

Names

Nikolaos Pappas

Emails

****@cs.washington.edu (Confirmed)

****@gmail.com (Confirmed)

****@amazon.com (Confirmed)

Personal Links

Career & Education History

Researcher

AWS AI Labs (amazon.com)

2021 – Present

Postdoc

University of Washington (cs.washington.edu)

2019 – 2021

Postdoc

Idiap Research Institute (idiap.ch)

2016 – 2019

PhD student

EPFL - École polytechnique fédérale de Lausanne (epfl.ch)

2012 – 2016

Advisors, Relations & Conflicts

Postdoc Advisor

Noah A Smith

2019 – 2021

Postdoc Advisor

James Henderson

2017 – 2019

PhD Advisor

Andrei Popescu-Belis

2012 – 2016

Expertise

Deep Learning

2016 – Present

Natural Language Processing

2012 – Present

Publications

Cross-Modal Content Optimization for Steering Web Agent Preferences
Tanqiu Jiang, Min Bai, Nikolaos Pappas, Yanjun Qi, Sandesh Swamy
- Submitted to ICLR 2026
- Readers: Everyone
Capturing Gaze Shifts for Guidance: Cross-Modal Fusion Enhancement for VLM Hallucination Mitigation
Zheng Qi, Chao Shang, Evangelia Spiliopoulou, Nikolaos Pappas
- Submitted to ICLR 2026
- Readers: Everyone
DiverseAgentEntropy: Quantifying Black-Box LLM Uncertainty through Diverse Perspectives and Multi-Agent Interaction
Yu Feng, Phu Mon Htut, Zheng Qi, Wei Xiao, Manuel Mager, Nikolaos Pappas, Kishaloy Halder, Yang Li, Yassine Benajiba, Dan Roth
- Submitted to ICLR 2025
- Readers: Everyone
Inference time LLM alignment in single and multidomain preference spectrum
sadat shahriar, Zheng Qi, Nikolaos Pappas, Srikanth Doss, Kishaloy Halder, MONICA SUNKARA, Manuel Mager, Yassine Benajiba
- Submitted to ICLR 2025
- Readers: Everyone
Unraveling and Mitigating Safety Alignment Degradation of Vision-Language Models
Qin Liu, Chao Shang, Ling Liu, Nikolaos Pappas, Jie Ma, Neha Anna John, Srikanth Doss, Lluis Marquez, Miguel Ballesteros, Yassine Benajiba
- Submitted to ICLR 2025
- Readers: Everyone
Measuring and Mitigating Constraint Violations of In-Context Learning for Utterance-to-API Semantic Parsing
Shufan Wang, Sébastien Jean, Sailik Sengupta, James Gung, Nikolaos Pappas, Yi Zhang
- EMNLP 2023 Findings
- Readers: Everyone
Pre-training Intent-Aware Encoders for Zero- and Few-Shot Intent Classification
Mujeen Sung, James Gung, Elman Mansimov, Nikolaos Pappas, Raphael Shu, Salvatore Romeo, Yi Zhang, Vittorio Castelli
- EMNLP 2023 Main
- Readers: Everyone
VCC: Scaling Transformers to 128K Tokens or More by Prioritizing Important Tokens
Zhanpeng Zeng, Cole Hawkins, Mingyi Hong, Aston Zhang, Nikolaos Pappas, Vikas Singh, Shuai Zheng
- NeurIPS 2023 poster
- Readers: Everyone
ABC: Attention with Bounded-memory Control
Hao Peng, Jungo Kasai, Nikolaos Pappas, Dani Yogatama, Zhaofeng Wu, Lingpeng Kong, Roy Schwartz, Noah A. Smith
- Published: 01 Jan 2022, Last Modified: 02 Oct 2023
- ACL (1) 2022
- Readers: Everyone
Modeling Context With Linear Attention for Scalable Document-Level Translation
Zhaofeng Wu, Hao Peng, Nikolaos Pappas, Noah A. Smith
- Published: 01 Jan 2022, Last Modified: 03 Oct 2023
- EMNLP (Findings) 2022
- Readers: Everyone

View all 40 publications

Co-Authors

View all 71 co-authors