Alexandros Papangelis

According to our database, Alexandros Papangelis authored at least 63 papers between 2010 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2024

Overview of the Tenth Dialog System Technology Challenge: DSTC10.

Koichiro Yoshino, Yun-Nung Chen, Paul A. Crook, Satwik Kottur, Jinchao Li, Behnam Hedayatnia, Seungwhan Moon, Zhengcong Fei, Zekang Li, Jinchao Zhang, Yang Feng, Jie Zhou, Seokhwan Kim, Yang Liu, Di Jin, Alexandros Papangelis, Karthik Gopalakrishnan, Dilek Hakkani-Tur, Babak Damavandi, Alborz Geramifard, Chiori Hori, Ankit Shah, Chen Zhang, Haizhou Li, João Sedoc, Luis F. D'Haro, Rafael E. Banchs, Alexander Rudnicky

IEEE ACM Trans. Audio Speech Lang. Process., 2024

FANTAstic SEquences and Where to Find Them: Faithful and Efficient API Call Generation through State-tracked Constrained Decoding and Reranking.

Zhuoer Wang, Leonardo F. R. Ribeiro, Alexandros Papangelis, Rohan Mukherjee, Tzu-Yen Wang, Xinyan Zhao, Arijit Biswas, James Caverlee, Angeliki Metallinou

Proceedings of the Findings of the Association for Computational Linguistics: EMNLP 2024, 2024

Semi-Supervised Reward Modeling via Iterative Self-Training.

Yifei He, Haoxiang Wang, Ziyan Jiang, Alexandros Papangelis, Han Zhao

Proceedings of the Findings of the Association for Computational Linguistics: EMNLP 2024, 2024

2023

"What do others think?": Task-Oriented Conversational Modeling with Subjective Knowledge.

Chao Zhao, Spandana Gella, Seokhwan Kim, Di Jin, Devamanyu Hazarika, Alexandros Papangelis, Behnam Hedayatnia, Mahdi Namazifar, Yang Liu, Dilek Hakkani-Tur

Proceedings of the 24th Meeting of the Special Interest Group on Discourse and Dialogue, 2023

Identifying Entrainment in Task-Oriented Conversations.

Run Chen, Seokhwan Kim, Alexandros Papangelis, Julia Hirschberg, Yang Liu, Dilek Hakkani-Tür

Proceedings of the IEEE International Conference on Acoustics, 2023

Selective In-Context Data Augmentation for Intent Detection using Pointwise V-Information.

Yen Ting Lin, Alexandros Papangelis, Seokhwan Kim, Sungjin Lee, Devamanyu Hazarika, Mahdi Namazifar, Di Jin, Yang Liu, Dilek Hakkani-Tur

Proceedings of the 17th Conference of the European Chapter of the Association for Computational Linguistics, 2023

PLACES: Prompting Language Models for Social Conversation Synthesis.

Maximillian Chen, Alexandros Papangelis, Chenyang Tao, Seokhwan Kim, Andy Rosenbaum, Yang Liu, Zhou Yu, Dilek Hakkani-Tur

Proceedings of the Findings of the Association for Computational Linguistics: EACL 2023, 2023

Towards Credible Human Evaluation of Open-Domain Dialog Systems Using Interactive Setup.

Sijia Liu, Patrick Lange, Behnam Hedayatnia, Alexandros Papangelis, Di Jin, Andrew Wirth, Yang Liu, Dilek Hakkani-Tur

Proceedings of the Thirty-Seventh AAAI Conference on Artificial Intelligence, 2023

2022

Weakly Supervised Data Augmentation Through Prompting for Dialogue Understanding.

Maximillian Chen, Alexandros Papangelis, Chenyang Tao, Andy Rosenbaum, Seokhwan Kim, Yang Liu, Zhou Yu, Dilek Hakkani-Tur

CoRR, 2022

GEMv2: Multilingual NLG Benchmarking in a Single Line of Code.

Sebastian Gehrmann, Abhik Bhattacharjee, Abinaya Mahendiran, Alex Wang, Alexandros Papangelis, Aman Madaan, Angelina McMillan-Major, Anna Shvets, Ashish Upadhyay, Bingsheng Yao, Bryan Wilie, Chandra Bhagavatula, Chaobin You, Craig Thomson, Cristina Garbacea, Dakuo Wang, Daniel Deutsch, Deyi Xiong, Di Jin, Dimitra Gkatzia, Dragomir R. Radev, Elizabeth Clark, Esin Durmus, Faisal Ladhak, Filip Ginter, Genta Indra Winata, Hendrik Strobelt, Hiroaki Hayashi, Jekaterina Novikova, Jenna Kanerva, Jenny Chim, Jiawei Zhou, Jordan Clive, Joshua Maynez, João Sedoc, Juraj Juraska, Kaustubh D. Dhole, Khyathi Raghavi Chandu, Laura Perez-Beltrachini, Leonardo F. R. Ribeiro, Lewis Tunstall, Li Zhang, Mahima Pushkarna, Mathias Creutz, Michael White, Mihir Sanjay Kale, Moussa Kamal Eddine, Nico Daheim, Nishant Subramani, Ondrej Dusek, Paul Pu Liang, Pawan Sasanka Ammanamanchi, Qi Zhu, Ratish Puduppully, Reno Kriz, Rifat Shahriyar, Ronald Cardenas, Saad Mahamood, Salomey Osei, Samuel Cahyawijaya, Sanja Stajner, Sébastien Montella, Shailza Jolly, Simon Mille, Tahmid Hasan, Tianhao Shen, Tosin P. AMahidewumi, Vikas Raunak, Vipul Raheja, Vitaly Nikolaev, Vivian Tsai, Yacine Jernite, Ying Xu, Yisi Sang, Yixin Liu, Yufang Hou

CoRR, 2022

Knowledge-Grounded Conversational Data Augmentation with Generative Conversational Networks.

Yen Ting Lin, Alexandros Papangelis, Seokhwan Kim, Dilek Hakkani-Tur

Proceedings of the 23rd Annual Meeting of the Special Interest Group on Discourse and Dialogue, 2022

GEMv2: Multilingual NLG Benchmarking in a Single Line of Code.

Sebastian Gehrmann, Abhik Bhattacharjee, Abinaya Mahendiran, Alex Wang, Alexandros Papangelis, Aman Madaan, Angelina McMillan-Major, Anna Shvets, Ashish Upadhyay, Bernd Bohnet

Proceedings of the The 2022 Conference on Empirical Methods in Natural Language Processing, 2022

What is wrong with you?: Leveraging User Sentiment for Automatic Dialog Evaluation.

Sarik Ghazarian, Behnam Hedayatnia, Alexandros Papangelis, Yang Liu, Dilek Hakkani-Tur

Proceedings of the Findings of the Association for Computational Linguistics: ACL 2022, 2022

2021

User Response and Sentiment Prediction for Automatic Dialogue Evaluation.

Sarik Ghazarian, Behnam Hedayatnia, Alexandros Papangelis, Yang Liu, Dilek Hakkani-Tur

CoRR, 2021

Training Conversational Agents with Generative Conversational Networks.

Yen-Ting Lin, Alexandros Papangelis, Seokhwan Kim, Dilek Hakkani-Tur

CoRR, 2021

Open-domain Topic Identification of Out-of-domain Utterances using Wikipedia.

Alexandry Augustin, Alexandros Papangelis, Margarita Kotti, Pavlos Vougiouklis, Jonathon Hare, Norbert Braunschweiler

CoRR, 2021

Generative Conversational Networks.

Alexandros Papangelis, Karthik Gopalakrishnan, Aishwarya Padmakumar, Seokhwan Kim, Gökhan Tür, Dilek Hakkani-Tür

Proceedings of the 22nd Annual Meeting of the Special Interest Group on Discourse and Dialogue, 2021

Understanding How People Rate Their Conversations.

Alexandros Papangelis, Nicole Chartier, Pankaj Rajan, Julia Hirschberg, Dilek Hakkani-Tur

Proceedings of the Conversational AI for Natural Human-Centric Interaction, 2021

Language Model is all You Need: Natural Language Understanding as Question Answering.

Mahdi Namazifar, Alexandros Papangelis, Gökhan Tür, Dilek Hakkani-Tür

Proceedings of the IEEE International Conference on Acoustics, 2021

"How Robust R U?": Evaluating Task-Oriented Dialogue Systems on Spoken Conversations.

Seokhwan Kim, Yang Liu, Di Jin, Alexandros Papangelis, Karthik Gopalakrishnan, Behnam Hedayatnia, Dilek Hakkani-Tür

Proceedings of the IEEE Automatic Speech Recognition and Understanding Workshop, 2021

2020

Can You be More Social? Injecting Politeness and Positivity into Task-Oriented Conversational Agents.

Yi-Chia Wang, Alexandros Papangelis, Runze Wang, Zhaleh Feizollahi, Gökhan Tür, Robert E. Kraut

CoRR, 2020

Towards meaningful, grounded conversations with intelligent agents.

Alexandros Papangelis, Stefan Ultes

CoRR, 2020

Plato Dialogue System: A Flexible Conversational AI Research Platform.

Alexandros Papangelis, Mahdi Namazifar, Chandra Khatri, Yi-Chia Wang, Piero Molino, Gökhan Tür

CoRR, 2020

Exploration Based Language Learning for Text-Based Games.

Andrea Madotto, Mahdi Namazifar, Joost Huizinga, Piero Molino, Adrien Ecoffet, Huaixiu Zheng, Alexandros Papangelis, Dian Yu, Chandra Khatri, Gökhan Tür

Proceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence, 2020

Joint Contextual Modeling for ASR Correction and Language Understanding.

Yue Weng, Sai Sumanth Miryala, Chandra Khatri, Runze Wang, Huaixiu Zheng, Piero Molino, Mahdi Namazifar, Alexandros Papangelis, Hugh Williams, Franziska Bell, Gökhan Tür

Proceedings of the 2020 IEEE International Conference on Acoustics, 2020

Controllable Text Generation with Focused Variation.

Lei Shu, Alexandros Papangelis, Yi-Chia Wang, Gökhan Tür, Hu Xu, Zhaleh Feizollahi, Bing Liu, Piero Molino

Proceedings of the Findings of the Association for Computational Linguistics: EMNLP 2020, 2020

2019

WCIS 2019: 1st Workshop on Conversational Interaction Systems.

Abhinav Rastogi, Alexandros Papangelis, Rahul Goel, Chandra Khatri

Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval, 2019

Collaborative Multi-Agent Dialogue Model Training Via Reinforcement Learning.

Alexandros Papangelis, Yi-Chia Wang, Piero Molino, Gökhan Tür

Proceedings of the 20th Annual SIGdial Meeting on Discourse and Dialogue, 2019

Commonsense and Semantic-Guided Navigation through Language in Embodied Environment.

Dian Yu, Chandra Khatri, Alexandros Papangelis, Andrea Madotto, Mahdi Namazifar, Joost Huizinga, Adrien Ecoffet, Huaixiu Zheng, Piero Molino, Jeff Clune, Zhou Yu, Kenji Sagae, Gökhan Tür

Proceedings of the Visually Grounded Interaction and Language (ViGIL), 2019

2018

Prediction of Dialogue Success with Spectral and Rhythm Acoustic Features Using DNNS and SVMS.

Athanasios Lykartsis, Margarita Kotti, Alexandros Papangelis, Yannis Stylianou

Proceedings of the 2018 IEEE Spoken Language Technology Workshop, 2018

Spoken Dialogue for Information Navigation.

Alexandros Papangelis, Panagiotis Papadakos, Yannis Stylianou, Yannis Tzitzikas

Proceedings of the 19th Annual SIGdial Meeting on Discourse and Dialogue, 2018

A Case Study on the Importance of Belief State Representation for Dialogue Policy Management.

Margarita Kotti, Vassilios Diakoloukas, Alexandros Papangelis, Michail Lagoudakis, Yannis Stylianou

Proceedings of the 19th Annual Conference of the International Speech Communication Association, 2018

Comparison of an End-to-end Trainable Dialogue System with a Modular Statistical Dialogue System.

Norbert Braunschweiler, Alexandros Papangelis

Proceedings of the 19th Annual Conference of the International Speech Communication Association, 2018

Towards Scalable Information-Seeking Multi-Domain Dialogue.

Alexandros Papangelis, Margarita Kotti, Yannis Stylianou

Proceedings of the 2018 IEEE International Conference on Acoustics, 2018

On Finding the Relevant User Reviews for Advancing Conversational Faceted Search.

Eleftherios Dimitrakis, Konstantinos Sgontzos, Panagiotis Papadakos, Yannis Marketakis, Alexandros Papangelis, Yannis Stylianou, Yannis Tzitzikas

Proceedings of 4th Workshop on Sentic Computing, 2018

2017

LD-SDS: Towards an Expressive Spoken Dialogue System based on Linked-Data.

Alexandros Papangelis, Panagiotis Papadakos, Margarita Kotti, Yannis Stylianou, Yannis Tzitzikas, Dimitris Plexousakis

CoRR, 2017

Domain Complexity and Policy Learning in Task-Oriented Dialogue Systems.

Alexandros Papangelis, Stefan Ultes, Yannis Stylianou

Proceedings of the Advanced Social Interaction with Agents, 2017

Single-Model Multi-domain Dialogue Management with Deep Learning.

Alexandros Papangelis, Yannis Stylianou

Proceedings of the Advanced Social Interaction with Agents, 2017

Predicting dialogue success, naturalness, and length with acoustic features.

Alexandros Papangelis, Margarita Kotti, Yannis Stylianou

Proceedings of the 2017 IEEE International Conference on Acoustics, 2017

2016

Special Session - The Future Directions of Dialogue-Based Intelligent Personal Assistants.

Yoichi Matsuyama, Alexandros Papangelis

Proceedings of the SIGDIAL 2016 Conference, 2016

2015

Reinforcement Learning of Multi-Issue Negotiation Dialogue Policies.

Alexandros Papangelis, Kallirroi Georgila

Proceedings of the SIGDIAL 2015 Conference, 2015

A multimodal adaptive dialogue manager for depressive and anxiety disorder screening: a Wizard-of-Oz experiment.

Konstantinos Tsiakas, Lynette Watts, Cyril Lutterodt, Theodoros Giannakopoulos, Alexandros Papangelis, Robert Gatchel, Vangelis Karkaletsis, Fillia Makedon

Proceedings of the 8th ACM International Conference on PErvasive Technologies Related to Assistive Environments, 2015

TickTock: A Non-Goal-Oriented Multimodal Dialog System with Engagement Awareness.

Zhou Yu, Alexandros Papangelis, Alexander I. Rudnicky

Proceedings of the 2015 AAAI Spring Symposia, 2015

2014

Towards a Dyadic Computational Model of Rapport Management for Human-Virtual Agent Interaction.

Ran Zhao, Alexandros Papangelis, Justine Cassell

Proceedings of the Intelligent Virtual Agents - 14th International Conference, 2014

Towards a Computational Architecture of Dyadic Rapport Management for Virtual Agents.

Alexandros Papangelis, Ran Zhao, Justine Cassell

Proceedings of the Intelligent Virtual Agents - 14th International Conference, 2014

A Dialogue System for Ensuring Safe Rehabilitation.

Alexandros Papangelis, Georgios Galatas, Konstantinos Tsiakas, Alexandros Lioulemes, Dimitrios Zikos, Fillia Makedon

Proceedings of the Universal Access in Human-Computer Interaction. Aging and Assistive Environments, 2014

2013

An assistive object manipulation system.

Alexandros Papangelis, Isura Ranatunga, Christopher McMurrough, Fillia Makedon

Proceedings of the 6th International Conference on PErvasive Technologies Related to Assistive Environments, 2013

An adaptive dialogue system for assessing post traumatic stress disorder.

Alexandros Papangelis, Robert Gatchel, Vangelis Metsis, Fillia Makedon

Proceedings of the 6th International Conference on PErvasive Technologies Related to Assistive Environments, 2013

A development and evaluation platform for non-tactile power wheelchair controls.

Christopher McMurrough, Isura Ranatunga, Alexandros Papangelis, Dan O. Popa, Fillia Makedon

Proceedings of the 6th International Conference on PErvasive Technologies Related to Assistive Environments, 2013

Towards adaptive dialogue systems for assistive living environments.

Alexandros Papangelis, Vangelis Karkaletsis, Heng Huang

Proceedings of the 18th International Conference on Intelligent User Interfaces, 2013

A framework for optimal assistive robot placement for event recognition.

Georgios Galatas, Alexandros Papangelis, Fillia Makedon

Proceedings of the International Conference on Computing, Networking and Communications, 2013

2012

An Adaptive Dialogue System with Online Dialogue Policy Learning.

Alexandros Papangelis, Nikolaos Kouroupas, Vangelis Karkaletsis, Fillia Makedon

Proceedings of the Artificial Intelligence: Theories and Applications, 2012

A game system for remote rehabilitation of cerebral palsy patients.

Alexandros Papangelis, Giannis Mouchakis, Angela Boisselle, Dimitrios I. Kosmopoulos, Vangelis Karkaletsis, Fillia Makedon

Proceedings of the 5th International Conference on PErvasive Technologies Related to Assistive Environments, 2012

A survey of assistive devices for cerebral palsy patients.

Christopher McMurrough, Shahina Ferdous, Alexandros Papangelis, Angie Boisselle, Fillia Makedon

Proceedings of the 5th International Conference on PErvasive Technologies Related to Assistive Environments, 2012

Evaluation of Online Dialogue Policy Learning Techniques.

Alexandros Papangelis, Vangelis Karkaletsis, Fillia Makedon

Proceedings of the Eighth International Conference on Language Resources and Evaluation, 2012

Online Complex Action Learning and User State Estimation for Adaptive Dialogue Systems.

Alexandros Papangelis, Vangelis Karkaletsis, Fillia Makedon

Proceedings of the IEEE 24th International Conference on Tools with Artificial Intelligence, 2012

A Comparative Study of Reinforcement Learning Techniques on Dialogue Management.

Alexandros Papangelis

Proceedings of the EACL 2012, 2012

2011

A tool for sensor placement and system monitoring in assistive environments.

Alexandros Papangelis, Fillia Makedon

Proceedings of the PETRA 2011, 2011

A recommender system for assistive environments.

Alexandros Papangelis, Georgios Galatas, Fillia Makedon

Proceedings of the PETRA 2011, 2011

Recognition of sleep patterns using a bed pressure mat.

Vangelis Metsis, Georgios Galatas, Alexandros Papangelis, Dimitrios I. Kosmopoulos, Fillia Makedon

Proceedings of the PETRA 2011, 2011

Audio visual speech recognition in noisy visual environments.

Georgios Galatas, Gerasimos Potamianos, Alexandros Papangelis, Fillia Makedon

Proceedings of the PETRA 2011, 2011

2010

Sensor placement and coordination via distributed multi-agent cooperative control.

Alexandros Papangelis, Vangelis Metsis, John Shawe-Taylor, Fillia Makedon

Proceedings of the 3rd International Conference on Pervasive Technologies Related to Assistive Environments, 2010

Computer aided sensor placement and automatic state definition.

Alexandros Papangelis, Georgios Galatas, Shahina Ferdous, Sarantos Kapidakis, Fillia Makedon

Proceedings of the 3rd International Conference on Pervasive Technologies Related to Assistive Environments, 2010