Alexandros Papangelis

Publication Activity (10 Years)

Years Active: 2010-2024
Publications (10 Years): 52

Top Topics

Language Understanding

Acoustic Features

Dialogue System

Conversational Agent

Top Venues

Publications

Zhuoer Wang, Leonardo F. R. Ribeiro, Alexandros Papangelis, Rohan Mukherjee, Tzu-Yen Wang, Xinyan Zhao, Arijit Biswas, James Caverlee, Angeliki Metallinou
FANTAstic SEquences and Where to Find Them: Faithful and Efficient API Call Generation through State-tracked Constrained Decoding and Reranking. CoRR (2024)
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
Overview of the Tenth Dialog System Technology Challenge: DSTC10. IEEE ACM Trans. Audio Speech Lang. Process. 32 (2024)
Chao Zhao, Spandana Gella, Seokhwan Kim, Di Jin, Devamanyu Hazarika, Alexandros Papangelis, Behnam Hedayatnia, Mahdi Namazifar, Yang Liu, Dilek Hakkani-Tur
"What do others think?": Task-Oriented Conversational Modeling with Subjective Knowledge. SIGDIAL (2023)
Maximillian Chen, Alexandros Papangelis, Chenyang Tao, Seokhwan Kim, Andy Rosenbaum, Yang Liu, Zhou Yu, Dilek Hakkani-Tur
PLACES: Prompting Language Models for Social Conversation Synthesis. EACL (Findings) (2023)
Sijia Liu, Patrick Lange, Behnam Hedayatnia, Alexandros Papangelis, Di Jin, Andrew Wirth, Yang Liu, Dilek Hakkani-Tur
Towards Credible Human Evaluation of Open-Domain Dialog Systems Using Interactive Setup. AAAI (2023)
Maximillian Chen, Alexandros Papangelis, Chenyang Tao, Seokhwan Kim, Andy Rosenbaum, Yang Liu, Zhou Yu, Dilek Hakkani-Tur
PLACES: Prompting Language Models for Social Conversation Synthesis. CoRR (2023)
Yen Ting Lin, Alexandros Papangelis, Seokhwan Kim, Sungjin Lee, Devamanyu Hazarika, Mahdi Namazifar, Di Jin, Yang Liu, Dilek Hakkani-Tur
Selective In-Context Data Augmentation for Intent Detection using Pointwise V-Information. EACL (2023)
Run Chen, Seokhwan Kim, Alexandros Papangelis, Julia Hirschberg, Yang Liu, Dilek Hakkani-Tür
Identifying Entrainment in Task-Oriented Conversations. ICASSP (2023)
Yen-Ting Lin, Alexandros Papangelis, Seokhwan Kim, Sungjin Lee, Devamanyu Hazarika, Mahdi Namazifar, Di Jin, Yang Liu, Dilek Hakkani-Tur
Selective In-Context Data Augmentation for Intent Detection using Pointwise V-Information. CoRR (2023)
Chao Zhao, Spandana Gella, Seokhwan Kim, Di Jin, Devamanyu Hazarika, Alexandros Papangelis, Behnam Hedayatnia, Mahdi Namazifar, Yang Liu, Dilek Hakkani-Tur
"What do others think?": Task-Oriented Conversational Modeling with Subjective Knowledge. CoRR (2023)
Sarik Ghazarian, Behnam Hedayatnia, Alexandros Papangelis, Yang Liu, Dilek Hakkani-Tur
What is wrong with you?: Leveraging User Sentiment for Automatic Dialog Evaluation. CoRR (2022)
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
GEMv2: Multilingual NLG Benchmarking in a Single Line of Code. CoRR (2022)
Yen-Ting Lin, Alexandros Papangelis, Seokhwan Kim, Dilek Hakkani-Tur
Knowledge-Grounded Conversational Data Augmentation with Generative Conversational Networks. CoRR (2022)
Alexandros Papangelis, Nicole Chartier, Pankaj Rajan, Julia Hirschberg, Dilek Hakkani-Tur
Understanding How People Rate Their Conversations. CoRR (2022)
Sarik Ghazarian, Behnam Hedayatnia, Alexandros Papangelis, Yang Liu, Dilek Hakkani-Tur
What is wrong with you?: Leveraging User Sentiment for Automatic Dialog Evaluation. ACL (Findings) (2022)
Maximillian Chen, Alexandros Papangelis, Chenyang Tao, Andy Rosenbaum, Seokhwan Kim, Yang Liu, Zhou Yu, Dilek Hakkani-Tur
Weakly Supervised Data Augmentation Through Prompting for Dialogue Understanding. CoRR (2022)
Sebastian Gehrmann, Abhik Bhattacharjee, Abinaya Mahendiran, Alex Wang, Alexandros Papangelis, Aman Madaan, Angelina McMillan-Major, Anna Shvets, Ashish Upadhyay, Bernd Bohnet
GEMv2: Multilingual NLG Benchmarking in a Single Line of Code. EMNLP (Demos) (2022)
Yen Ting Lin, Alexandros Papangelis, Seokhwan Kim, Dilek Hakkani-Tur
Knowledge-Grounded Conversational Data Augmentation with Generative Conversational Networks. SIGDIAL (2022)
Seokhwan Kim, Yang Liu, Di Jin, Alexandros Papangelis, Karthik Gopalakrishnan, Behnam Hedayatnia, Dilek Hakkani-Tur
"How Robust r u?": Evaluating Task-Oriented Dialogue Systems on Spoken Conversations. CoRR (2021)
Mahdi Namazifar, Alexandros Papangelis, Gökhan Tür, Dilek Hakkani-Tür
Language Model is all You Need: Natural Language Understanding as Question Answering. ICASSP (2021)
Alexandros Papangelis, Nicole Chartier, Pankaj Rajan, Julia Hirschberg, Dilek Hakkani-Tur
Understanding How People Rate Their Conversations. IWSDS (2021)
Alexandry Augustin, Alexandros Papangelis, Margarita Kotti, Pavlos Vougiouklis, Jonathon Hare, Norbert Braunschweiler
Open-domain Topic Identification of Out-of-domain Utterances using Wikipedia. CoRR (2021)
Alexandros Papangelis, Karthik Gopalakrishnan, Aishwarya Padmakumar, Seokhwan Kim, Gökhan Tür, Dilek Hakkani-Tür
Generative Conversational Networks. CoRR (2021)
Alexandros Papangelis, Karthik Gopalakrishnan, Aishwarya Padmakumar, Seokhwan Kim, Gökhan Tür, Dilek Hakkani-Tür
Generative Conversational Networks. SIGDIAL (2021)
Seokhwan Kim, Yang Liu, Di Jin, Alexandros Papangelis, Karthik Gopalakrishnan, Behnam Hedayatnia, Dilek Hakkani-Tür
"How Robust R U?": Evaluating Task-Oriented Dialogue Systems on Spoken Conversations. ASRU (2021)
Yen-Ting Lin, Alexandros Papangelis, Seokhwan Kim, Dilek Hakkani-Tur
Training Conversational Agents with Generative Conversational Networks. CoRR (2021)
Sarik Ghazarian, Behnam Hedayatnia, Alexandros Papangelis, Yang Liu, Dilek Hakkani-Tur
User Response and Sentiment Prediction for Automatic Dialogue Evaluation. CoRR (2021)
Yi-Chia Wang, Alexandros Papangelis, Runze Wang, Zhaleh Feizollahi, Gökhan Tür, Robert E. Kraut
Can You be More Social? Injecting Politeness and Positivity into Task-Oriented Conversational Agents. CoRR (2020)
Andrea Madotto, Mahdi Namazifar, Joost Huizinga, Piero Molino, Adrien Ecoffet, Huaixiu Zheng, Alexandros Papangelis, Dian Yu, Chandra Khatri, Gökhan Tür
Exploration Based Language Learning for Text-Based Games. IJCAI (2020)
Andrea Madotto, Mahdi Namazifar, Joost Huizinga, Piero Molino, Adrien Ecoffet, Huaixiu Zheng, Alexandros Papangelis, Dian Yu, Chandra Khatri, Gökhan Tür
Exploration Based Language Learning for Text-Based Games. CoRR (2020)
Mahdi Namazifar, Alexandros Papangelis, Gökhan Tür, Dilek Hakkani-Tür
Language Model is All You Need: Natural Language Understanding as Question Answering. CoRR (2020)
Lei Shu, Alexandros Papangelis, Yi-Chia Wang, Gökhan Tür, Hu Xu, Zhaleh Feizollahi, Bing Liu, Piero Molino
Controllable Text Generation with Focused Variation. EMNLP (Findings) (2020)
Yue Weng, Sai Sumanth Miryala, Chandra Khatri, Runze Wang, Huaixiu Zheng, Piero Molino, Mahdi Namazifar, Alexandros Papangelis, Hugh Williams, Franziska Bell, Gökhan Tür
Joint Contextual Modeling for ASR Correction and Language Understanding. CoRR (2020)
Lei Shu, Alexandros Papangelis, Yi-Chia Wang, Gökhan Tür, Hu Xu, Zhaleh Feizollahi, Bing Liu, Piero Molino
Controllable Text Generation with Focused Variation. CoRR (2020)
Alexandros Papangelis, Stefan Ultes
Towards meaningful, grounded conversations with intelligent agents. CoRR (2020)
Alexandros Papangelis, Mahdi Namazifar, Chandra Khatri, Yi-Chia Wang, Piero Molino, Gökhan Tür
Plato Dialogue System: A Flexible Conversational AI Research Platform. CoRR (2020)
Yue Weng, Sai Sumanth Miryala, Chandra Khatri, Runze Wang, Huaixiu Zheng, Piero Molino, Mahdi Namazifar, Alexandros Papangelis, Hugh Williams, Franziska Bell, Gökhan Tür
Joint Contextual Modeling for ASR Correction and Language Understanding. ICASSP (2020)
Alexandros Papangelis, Yi-Chia Wang, Piero Molino, Gökhan Tür
Collaborative Multi-Agent Dialogue Model Training Via Reinforcement Learning. CoRR (2019)
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
Commonsense and Semantic-Guided Navigation through Language in Embodied Environment. ViGIL@NeurIPS (2019)
Alexandros Papangelis, Yi-Chia Wang, Piero Molino, Gökhan Tür
Collaborative Multi-Agent Dialogue Model Training Via Reinforcement Learning. SIGdial (2019)
Abhinav Rastogi, Alexandros Papangelis, Rahul Goel, Chandra Khatri
WCIS 2019: 1st Workshop on Conversational Interaction Systems. SIGIR (2019)
Eleftherios Dimitrakis, Konstantinos Sgontzos, Panagiotis Papadakos, Yannis Marketakis, Alexandros Papangelis, Yannis Stylianou, Yannis Tzitzikas
On Finding the Relevant User Reviews for Advancing Conversational Faceted Search. EMSASW@ESWC (2018)
Alexandros Papangelis, Margarita Kotti, Yannis Stylianou
Towards Scalable Information-Seeking Multi-Domain Dialogue. ICASSP (2018)
Margarita Kotti, Vassilios Diakoloukas, Alexandros Papangelis, Michail Lagoudakis, Yannis Stylianou
A Case Study on the Importance of Belief State Representation for Dialogue Policy Management. INTERSPEECH (2018)
Athanasios Lykartsis, Margarita Kotti, Alexandros Papangelis, Yannis Stylianou
Prediction of Dialogue Success with Spectral and Rhythm Acoustic Features Using DNNS and SVMS. SLT (2018)
Alexandros Papangelis, Panagiotis Papadakos, Yannis Stylianou, Yannis Tzitzikas
Spoken Dialogue for Information Navigation. SIGDIAL Conference (2018)
Norbert Braunschweiler, Alexandros Papangelis
Comparison of an End-to-end Trainable Dialogue System with a Modular Statistical Dialogue System. INTERSPEECH (2018)
Alexandros Papangelis, Margarita Kotti, Yannis Stylianou
Predicting dialogue success, naturalness, and length with acoustic features. ICASSP (2017)
Alexandros Papangelis, Panagiotis Papadakos, Margarita Kotti, Yannis Stylianou, Yannis Tzitzikas, Dimitris Plexousakis
LD-SDS: Towards an Expressive Spoken Dialogue System based on Linked-Data. CoRR (2017)
Alexandros Papangelis, Yannis Stylianou
Single-Model Multi-domain Dialogue Management with Deep Learning. IWSDS (2017)
Alexandros Papangelis, Stefan Ultes, Yannis Stylianou
Domain Complexity and Policy Learning in Task-Oriented Dialogue Systems. IWSDS (2017)
Yoichi Matsuyama, Alexandros Papangelis
Special Session - The Future Directions of Dialogue-Based Intelligent Personal Assistants. SIGDIAL Conference (2016)
Alexandros Papangelis, Kallirroi Georgila
Reinforcement Learning of Multi-Issue Negotiation Dialogue Policies. SIGDIAL Conference (2015)
Konstantinos Tsiakas, Lynette Watts, Cyril Lutterodt, Theodoros Giannakopoulos, Alexandros Papangelis, Robert Gatchel, Vangelis Karkaletsis, Fillia Makedon
A multimodal adaptive dialogue manager for depressive and anxiety disorder screening: a Wizard-of-Oz experiment. PETRA (2015)
Zhou Yu, Alexandros Papangelis, Alexander I. Rudnicky
TickTock: A Non-Goal-Oriented Multimodal Dialog System with Engagement Awareness. AAAI Spring Symposia (2015)
Alexandros Papangelis, Georgios Galatas, Konstantinos Tsiakas, Alexandros Lioulemes, Dimitrios Zikos, Fillia Makedon
A Dialogue System for Ensuring Safe Rehabilitation. HCI (6) (2014)
Ran Zhao, Alexandros Papangelis, Justine Cassell
Towards a Dyadic Computational Model of Rapport Management for Human-Virtual Agent Interaction. IVA (2014)
Alexandros Papangelis, Ran Zhao, Justine Cassell
Towards a Computational Architecture of Dyadic Rapport Management for Virtual Agents. IVA (2014)
Christopher McMurrough, Isura Ranatunga, Alexandros Papangelis, Dan O. Popa, Fillia Makedon
A development and evaluation platform for non-tactile power wheelchair controls. PETRA (2013)
Alexandros Papangelis, Isura Ranatunga, Christopher McMurrough, Fillia Makedon
An assistive object manipulation system. PETRA (2013)
Alexandros Papangelis, Robert Gatchel, Vangelis Metsis, Fillia Makedon
An adaptive dialogue system for assessing post traumatic stress disorder. PETRA (2013)
Alexandros Papangelis, Vangelis Karkaletsis, Heng Huang
Towards adaptive dialogue systems for assistive living environments. IUI Companion (2013)
Georgios Galatas, Alexandros Papangelis, Fillia Makedon
A framework for optimal assistive robot placement for event recognition. ICNC (2013)
Alexandros Papangelis
A Comparative Study of Reinforcement Learning Techniques on Dialogue Management. EACL (2012)
Alexandros Papangelis, Nikolaos Kouroupas, Vangelis Karkaletsis, Fillia Makedon
An Adaptive Dialogue System with Online Dialogue Policy Learning. SETN (2012)
Alexandros Papangelis, Vangelis Karkaletsis, Fillia Makedon
Online Complex Action Learning and User State Estimation for Adaptive Dialogue Systems. ICTAI (2012)
Christopher McMurrough, Shahina Ferdous, Alexandros Papangelis, Angie Boisselle, Fillia Makedon
A survey of assistive devices for cerebral palsy patients. PETRA (2012)
Alexandros Papangelis, Vangelis Karkaletsis, Fillia Makedon
Evaluation of Online Dialogue Policy Learning Techniques. LREC (2012)
Alexandros Papangelis, Giannis Mouchakis, Angela Boisselle Texas, Dimitrios I. Kosmopoulos, Vangelis Karkaletsis, Fillia Makedon
A game system for remote rehabilitation of cerebral palsy patients. PETRA (2012)
Georgios Galatas, Gerasimos Potamianos, Alexandros Papangelis, Fillia Makedon
Audio visual speech recognition in noisy visual environments. PETRA (2011)
Vangelis Metsis, Georgios Galatas, Alexandros Papangelis, Dimitrios I. Kosmopoulos, Fillia Makedon
Recognition of sleep patterns using a bed pressure mat. PETRA (2011)
Alexandros Papangelis, Georgios Galatas, Fillia Makedon
A recommender system for assistive environments. PETRA (2011)
Alexandros Papangelis, Fillia Makedon
A tool for sensor placement and system monitoring in assistive environments. PETRA (2011)
Alexandros Papangelis, Georgios Galatas, Shahina Ferdous, Sarantos Kapidakis, Fillia Makedon
Computer aided sensor placement and automatic state definition. PETRA (2010)
Alexandros Papangelis, Vangelis Metsis, John Shawe-Taylor, Fillia Makedon
Sensor placement and coordination via distributed multi-agent cooperative control. PETRA (2010)