Stefan Ultes

ORCID

Publication Activity (10 Years)

Years Active: 2011-2023
Publications (10 Years): 109

Top Venues

University of Ulm, Germany (PHD)

Education History

University of Ulm, Germany

PHD

Publications

Nicholas Thomas Walker, Stefan Ultes, Pierre Lison
Retrieval-Augmented Neural Response Generation Using Logical Reasoning and Relevance Scoring. CoRR (2023)
Ye Liu, Stefan Ultes, Wolfgang Minker, Wolfgang Maier
System-Initiated Transitions from Chit-Chat to Task-Oriented Dialogues with Transition Info Extractor and Transition Sentence Generator. CoRR (2023)
Ye Liu, Stefan Ultes, Wolfgang Minker, Wolfgang Maier
Unified Conversational Models with System-Initiated Transitions between Chit-Chat and Task-Oriented Dialogues. CUI (2023)
Annalena Aicher, Stefan Hillmann, Sebastian Möller, Wolfgang Minker, Stefan Ultes
Exploring the Mobile Usability of Argumentative Dialogue Systems for Opinion Building. HCI (42) (2023)
Annalena Aicher, Klaus Weber, Elisabeth André, Wolfgang Minker, Stefan Ultes
The Influence of Avatar Interfaces on Argumentative Dialogues. IVA (2023)
Nicholas Thomas Walker, Stefan Ultes, Pierre Lison
A Graph-to-Text Approach to Knowledge-Grounded Response Generation in Human-Robot Interaction. CoRR (2023)
Annalena Aicher, Daniel Kornmüller, Yuki Matsuda, Stefan Ultes, Wolfgang Minker, Keiichi Yasumoto
Towards Breaking the Self-imposed Filter Bubble in Argumentative Dialogues. SIGDIAL (2023)
Annalena Aicher, Stefan Hillmann, Thilo Michael, Sebastian Möller, Wolfgang Minker, Stefan Ultes
Evaluating a Spoken Argumentative Dialogue System. HCI (16) (2023)
Klaus Weber, Annalena Aicher, Wolfgang Minker, Stefan Ultes, Elisabeth André
Fostering User Engagement in the Critical Reflection of Arguments. CoRR (2023)
Ye Liu, Stefan Ultes, Wolfgang Minker, Wolfgang Maier
System-Initiated Transitions from Chit-Chat to Task-Oriented Dialogues with Transition Info Extractor and Transition Sentence Generator. INLG (2023)
Ye Liu, Stefan Ultes, Wolfgang Minker, Wolfgang Maier
Unified Conversational Models with System-Initiated Transitions between Chit-Chat and Task-Oriented Dialogues. CoRR (2023)
Annalena Bea Aicher, Daniel Kornmüller, Wolfgang Minker, Stefan Ultes
Self-imposed Filter Bubble Model for Argumentative Dialogues. CUI (2023)
Annalena Aicher, Marc Fuchs, Wolfgang Minker, Stefan Ultes
Towards Modelling Elaborateness in Argumentative Dialogue Systems. HCI (41) (2023)
Nicholas Thomas Walker, Stefan Ultes, Pierre Lison
GraphWOZ: Dialogue Management with Conversational Knowledge Graphs. CoRR (2022)
Ye Liu, Wolfgang Maier, Wolfgang Minker, Stefan Ultes
ConceptNet infused DialoGPT for Underlying Commonsense Understanding and Reasoning in Dialogue Response Generation. CoRR (2022)
Juliana Miehle, Wolfgang Minker, Stefan Ultes
When to Say What and How: Adapting the Elaborateness and Indirectness of Spoken Dialogue Systems. Dialogue Discourse 13 (1) (2022)
Annalena Aicher, Nadine Gerstenlauer, Wolfgang Minker, Stefan Ultes
User Interest Modelling in Argumentative Dialogue Systems. LREC (2022)
Waheed Ahmed Abro, Annalena Aicher, Niklas Rach, Stefan Ultes, Wolfgang Minker, Guilin Qi
Natural language understanding for argumentative dialogue systems in the opinion building domain. Knowl. Based Syst. 242 (2022)
Annalena Aicher, Nadine Gerstenlauer, Isabel Feustel, Wolfgang Minker, Stefan Ultes
Towards Building a Spoken Dialogue System for Argument Exploration. LREC (2022)
Annalena Aicher, Wolfgang Minker, Stefan Ultes
Towards Modelling Self-imposed Filter Bubbles in Argumentative Dialogue Systems. LREC (2022)
Ye Liu, Wolfgang Maier, Wolfgang Minker, Stefan Ultes
Naturalness Evaluation of Natural Language Generation in Task-oriented Dialogues using BERT. CoRR (2021)
Niklas Rach, Carolin Schindler, Isabel Feustel, Johannes Daxenberger, Wolfgang Minker, Stefan Ultes
From Argument Search to Argumentative Dialogue: A Topic-independent Approach to Argument Acquisition for Dialogue Systems. SIGDIAL (2021)
Niklas Rach, Yuki Matsuda, Stefan Ultes, Wolfgang Minker, Keiichi Yasumoto
Estimating Subjective Argument Quality Aspects From Social Signals in Argumentative Dialogue Systems. IEEE Access 9 (2021)
Stefan Ultes, Wolfgang Maier
User Satisfaction Reward Estimation Across Domains: Domain-independent Dialogue Policy Learning. Dialogue Discourse 12 (2) (2021)
Annalena Aicher, Wolfgang Minker, Stefan Ultes
Determination of Reflective User Engagement in Argumentative Dialogue Systems. CMNA (2021)
Ye Liu, Wolfgang Maier, Wolfgang Minker, Stefan Ultes
Empathetic Dialogue Generation with Pre-trained RoBERTa-GPT2 and External Knowledge. IWSDS (2021)
Ye Liu, Wolfgang Maier, Wolfgang Minker, Stefan Ultes
Context Matters in Semantically Controlled Language Generation for Task-oriented Dialogue Systems. CoRR (2021)
Stefan Ultes, Wolfgang Maier
Blending Task Success and User Satisfaction: Analysis of Learned Dialogue Behaviour with Multiple Rewards. SIGDIAL (2021)
Ye Liu, Wolfgang Maier, Wolfgang Minker, Stefan Ultes
Context Matters in Semantically Controlled Language Generation for Task-oriented Dialogue Systems. ICON (2021)
Ye Liu, Wolfgang Maier, Wolfgang Minker, Stefan Ultes
Empathetic Dialogue Generation with Pre-trained RoBERTa-GPT2 and External Knowledge. CoRR (2021)
Juliana Miehle, Sabine Wieluch, Wolfgang Minker, Stefan Ultes
Decide or Delegate: How Script Knowledge Based Conversational Assistants Should Act in Inconclusive Situations. ICDCN (Adjunct Volume) (2021)
Niklas Rach, Klaus Weber, Yuchi Yang, Stefan Ultes, Elisabeth André, Wolfgang Minker
EVA 2.0: Emotional and rational multimodal argumentation between virtual agents. it Inf. Technol. 63 (1) (2021)
Waheed Ahmed Abro, Annalena Aicher, Niklas Rach, Stefan Ultes, Wolfgang Minker, Guilin Qi
Natural Language Understanding for Argumentative Dialogue Systems in the Opinion Building Domain. CoRR (2021)
Ye Liu, Wolfgang Maier, Wolfgang Minker, Stefan Ultes
Naturalness Evaluation of Natural Language Generation in Task-oriented Dialogues Using BERT. RANLP (2021)
Stefan Ultes
Improving Interaction Quality Estimation with BiLSTMs and the Impact on Dialogue Policy Learning. CoRR (2020)
Stefan Ultes, Wolfgang Maier
Similarity Scoring for Dialogue Behaviour Comparison. SIGdial (2020)
Klaus Weber, Kathrin Janowski, Niklas Rach, Katharina Weitz, Wolfgang Minker, Stefan Ultes, Elisabeth André
Predicting Persuasive Effectiveness for Multimodal Behavior Adaptation using Bipolar Weighted Argument Graphs. AAMAS (2020)
Louisa Pragst, Wolfgang Minker, Stefan Ultes
Comparative Study of Sentence Embeddings for Contextual Paraphrasing. LREC (2020)
Juliana Miehle, Nicolas Wagner, Wolfgang Minker, Stefan Ultes
Culture-Aware Dialogue Management for Conversational Assistants. IWSDS (2020)
Stefan Ultes, Wolfgang Maier
On the Complexity in Task-oriented Spoken Dialogue Systems. CIU (2020)
Juliana Miehle, Isabel Feustel, Julia Hornauer, Wolfgang Minker, Stefan Ultes
Estimating User Communication Styles for Spoken Dialogue Systems. LREC (2020)
Niklas Rach, Wolfgang Minker, Stefan Ultes
Increasing the Naturalness of an Argumentative Dialogue System Through Argument Chains. COMMA (2020)
Juliana Miehle, Isabel Feustel, Wolfgang Minker, Stefan Ultes
A Script Knowledge Based Dialogue System for Indoor Navigation. IWSDS (2020)
Alexandros Papangelis, Stefan Ultes
Towards meaningful, grounded conversations with intelligent agents. CoRR (2020)
Niklas Rach, Yuki Matsuda, Johannes Daxenberger, Stefan Ultes, Keiichi Yasumoto, Wolfgang Minker
Evaluation of Argument Search Approaches in the Context of Argumentative Dialogue Systems. LREC (2020)
Stefan Ultes, Pawel Budzianowski, Iñigo Casanueva, Lina Maria Rojas-Barahona, Bo-Hsiang Tseng, Yen-Chen Wu, Steve J. Young, Milica Gasic
Addressing Objects and Their Relations: The Conversational Entity Dialogue Model. CoRR (2019)
Juliana Miehle, Louisa Pragst, Wolfgang Minker, Stefan Ultes
Enabling Dialogue Management with Dynamically Created Dialogue Actions. CoRR (2019)
Stefan Ultes
Improving Interaction Quality Estimation with BiLSTMs and the Impact on Dialogue Policy Learning. SIGdial (2019)
Annalena Aicher, Niklas Rach, Wolfgang Minker, Stefan Ultes
Opinion Building Based on the Argumentative Dialogue System BEA. IWSDS (2019)
Stefan Ultes, Pawel Budzianowski, Iñigo Casanueva, Lina Maria Rojas-Barahona, Bo-Hsiang Tseng, Yen-Chen Wu, Steve J. Young, Milica Gasic
Addressing Objects and Their Relations: The Conversational Entity Dialogue Model. SIGDIAL Conference (2018)
Niklas Rach, Wolfgang Minker, Stefan Ultes
Markov Games for Persuasive Dialogue. COMMA (2018)
Lina Maria Rojas-Barahona, Stefan Ultes, Pawel Budzianowski, Iñigo Casanueva, Milica Gasic, Bo-Hsiang Tseng, Steve J. Young
Nearly Zero-Shot Learning for Semantic Decoding in Spoken Dialogue Systems. CoRR (2018)
Iñigo Casanueva, Pawel Budzianowski, Stefan Ultes, Florian Kreyssig, Bo-Hsiang Tseng, Yen-Chen Wu, Milica Gasic
Feudal Dialogue Management with Jointly Learned Feature Extractors. SIGDIAL Conference (2018)
Pawel Budzianowski, Tsung-Hsien Wen, Bo-Hsiang Tseng, Iñigo Casanueva, Stefan Ultes, Osman Ramadan, Milica Gasic
MultiWOZ - A Large-Scale Multi-Domain Wizard-of-Oz Dataset for Task-Oriented Dialogue Modelling. EMNLP (2018)
Niklas Rach, Klaus Weber, Louisa Pragst, Elisabeth André, Wolfgang Minker, Stefan Ultes
EVA: A Multimodal Argumentative Dialogue System. ICMI (2018)
Lina Maria Rojas-Barahona, Bo-Hsiang Tseng, Yinpei Dai, Clare Mansfield, Osman Ramadan, Stefan Ultes, Michael Crawford, Milica Gasic
Deep learning for language understanding of mental health concepts derived from Cognitive Behavioural Therapy. Louhi@EMNLP (2018)
Juliana Miehle, Nadine Gerstenlauer, Daniel Ostler, Hubertus Feußner, Wolfgang Minker, Stefan Ultes
Expert Evaluation of a Spoken Dialogue System in a Clinical Operating Room. LREC (2018)
Niklas Rach, Saskia Langhammer, Wolfgang Minker, Stefan Ultes
Utilizing Argument Mining Techniques for Argumentative Dialogue Systems. IWSDS (2018)
Iñigo Casanueva, Pawel Budzianowski, Pei-Hao Su, Stefan Ultes, Lina Maria Rojas-Barahona, Bo-Hsiang Tseng, Milica Gasic
Feudal Reinforcement Learning for Dialogue Management in Large Domains. CoRR (2018)
Louisa Pragst, Niklas Rach, Wolfgang Minker, Stefan Ultes
On the Vector Representation of Utterances in Dialogue Context. LREC (2018)
Iñigo Casanueva, Pawel Budzianowski, Pei-Hao Su, Stefan Ultes, Lina Maria Rojas-Barahona, Bo-Hsiang Tseng, Milica Gasic
Feudal Reinforcement Learning for Dialogue Management in Large Domains. NAACL-HLT (2) (2018)
Pawel Budzianowski, Tsung-Hsien Wen, Bo-Hsiang Tseng, Iñigo Casanueva, Stefan Ultes, Osman Ramadan, Milica Gasic
MultiWOZ - A Large-Scale Multi-Domain Wizard-of-Oz Dataset for Task-Oriented Dialogue Modelling. CoRR (2018)
Lina Maria Rojas-Barahona, Bo-Hsiang Tseng, Yinpei Dai, Clare Mansfield, Osman Ramadan, Stefan Ultes, Michael Crawford, Milica Gasic
Deep learning for language understanding of mental health concepts derived from Cognitive Behavioural Therapy. CoRR (2018)
Bo-Hsiang Tseng, Florian Kreyssig, Pawel Budzianowski, Iñigo Casanueva, Yen-Chen Wu, Stefan Ultes, Milica Gasic
Variational Cross-domain Natural Language Generation for Spoken Dialogue Systems. CoRR (2018)
Juliana Miehle, Wolfgang Minker, Stefan Ultes
Exploring the Impact of Elaborateness and Indirectness on User Satisfaction in a Spoken Dialogue System. UMAP (Adjunct Publication) (2018)
Louisa Pragst, Stefan Ultes
Changing the Level of Directness in Dialogue using Dialogue Vector Models and Recurrent Neural Networks. SIGDIAL Conference (2018)
Bo-Hsiang Tseng, Florian Kreyssig, Pawel Budzianowski, Iñigo Casanueva, Yen-Chen Wu, Stefan Ultes, Milica Gasic
Variational Cross-domain Natural Language Generation for Spoken Dialogue Systems. SIGDIAL Conference (2018)
Juliana Miehle, Wolfgang Minker, Stefan Ultes
What Causes the Differences in Communication Styles? A Multicultural Study on Directness and Elaborateness. LREC (2018)
Louisa Pragst, Juliana Miehle, Wolfgang Minker, Stefan Ultes
Challenges for adaptive dialogue management in the KRISTINA project. ISIAA@ICMI (2017)
Stefan Ultes, Pawel Budzianowski, Iñigo Casanueva, Nikola Mrksic, Lina Maria Rojas-Barahona, Pei-Hao Su, Tsung-Hsien Wen, Milica Gasic, Steve J. Young
Reward-Balancing for Statistical Spoken Dialogue Systems using Multi-objective Reinforcement Learning. SIGDIAL Conference (2017)
Louisa Pragst, Wolfgang Minker, Stefan Ultes
Exploring the Applicability of Elaborateness and Indirectness in Dialogue Management. IWSDS (2017)
Pawel Budzianowski, Stefan Ultes, Pei-Hao Su, Nikola Mrksic, Tsung-Hsien Wen, Iñigo Casanueva, Lina Maria Rojas-Barahona, Milica Gasic
Sub-domain Modelling for Dialogue Management with Hierarchical Reinforcement Learning. SIGDIAL Conference (2017)
Pei-Hao Su, Pawel Budzianowski, Stefan Ultes, Milica Gasic, Steve J. Young
Sample-efficient Actor-Critic Reinforcement Learning with Supervised Data for Dialogue Management. SIGDIAL Conference (2017)
Louisa Pragst, Koichiro Yoshino, Wolfgang Minker, Satoshi Nakamura, Stefan Ultes
Acquisition and Assessment of Semantic Content for the Generation of Elaborateness and Indirectness in Spoken Dialogue Systems. IJCNLP(1) (2017)
Stefan Ultes, Pawel Budzianowski, Iñigo Casanueva, Nikola Mrksic, Lina Maria Rojas-Barahona, Pei-Hao Su, Tsung-Hsien Wen, Milica Gasic, Steve J. Young
Reward-Balancing for Statistical Spoken Dialogue Systems using Multi-objective Reinforcement Learning. CoRR (2017)
Niklas Rach, Wolfgang Minker, Stefan Ultes
Interaction Quality Estimation Using Long Short-Term Memories. SIGDIAL Conference (2017)
Niklas Rach, Wolfgang Minker, Stefan Ultes
Towards an Argumentative Dialogue System. CMNA@ICAIL (2017)
Stefan Ultes, Pawel Budzianowski, Iñigo Casanueva, Nikola Mrksic, Lina Maria Rojas-Barahona, Pei-Hao Su, Tsung-Hsien Wen, Milica Gasic, Steve J. Young
Domain-Independent User Satisfaction Reward Estimation for Dialogue Policy Learning. INTERSPEECH (2017)
Iñigo Casanueva, Pawel Budzianowski, Pei-Hao Su, Nikola Mrksic, Tsung-Hsien Wen, Stefan Ultes, Lina Maria Rojas-Barahona, Steve J. Young, Milica Gasic
A Benchmarking Environment for Reinforcement Learning Based Task Oriented Dialogue Management. CoRR (2017)
Kyusong Lee, Tiancheng Zhao, Yulun Du, Edward Cai, Allen Lu, Eli Pincus, David R. Traum, Stefan Ultes, Lina Maria Rojas-Barahona, Milica Gasic, Steve J. Young, Maxine Eskénazi
DialPort, Gone Live: An Update After A Year of Development. SIGDIAL Conference (2017)
Kyusong Lee, Tiancheng Zhao, Stefan Ultes, Lina Maria Rojas-Barahona, Eli Pincus, David R. Traum, Maxine Eskénazi
An Assessment Framework for DialPort. IWSDS (2017)
Alexandros Papangelis, Stefan Ultes, Yannis Stylianou
Domain Complexity and Policy Learning in Task-Oriented Dialogue Systems. IWSDS (2017)
Milica Gasic, Nikola Mrksic, Lina Maria Rojas-Barahona, Pei-Hao Su, Stefan Ultes, David Vandyke, Tsung-Hsien Wen, Steve J. Young
Dialogue manager domain adaptation using Gaussian process reinforcement learning. Comput. Speech Lang. 45 (2017)
Tsung-Hsien Wen, David Vandyke, Nikola Mrksic, Milica Gasic, Lina Maria Rojas-Barahona, Pei-Hao Su, Stefan Ultes, Steve J. Young
A Network-based End-to-End Trainable Task-oriented Dialogue System. EACL (1) (2017)
Stefan Ultes, Juliana Miehle, Wolfgang Minker
On the Applicability of a User Satisfaction-Based Reward for Dialogue Policy Learning. IWSDS (2017)
Stefan Ultes, Lina Maria Rojas-Barahona, Pei-Hao Su, David Vandyke, Dongho Kim, Iñigo Casanueva, Pawel Budzianowski, Nikola Mrksic, Tsung-Hsien Wen, Milica Gasic, Steve J. Young
PyDial: A Multi-domain Statistical Dialogue System Toolkit. ACL (System Demonstrations) (2017)
Pei-Hao Su, Pawel Budzianowski, Stefan Ultes, Milica Gasic, Steve J. Young
Sample-efficient Actor-Critic Reinforcement Learning with Supervised Data for Dialogue Management. CoRR (2017)
Juliana Miehle, Ilker Bagci, Wolfgang Minker, Stefan Ultes
A Social Companion and Conversational Partner for the Elderly. IWSDS (2017)
Pawel Budzianowski, Stefan Ultes, Pei-Hao Su, Nikola Mrksic, Tsung-Hsien Wen, Iñigo Casanueva, Lina Maria Rojas-Barahona, Milica Gasic
Sub-domain Modelling for Dialogue Management with Hierarchical Reinforcement Learning. CoRR (2017)
Georgios Meditskos, Stamatia Dasiopoulou, Louisa Pragst, Stefan Ultes, Stefanos Vrochidis, Ioannis Kompatsiaris, Leo Wanner
Towards an Ontology-Driven Adaptive Dialogue Framework. MARMI@ICMR (2016)
Juliana Miehle, Koichiro Yoshino, Louisa Pragst, Stefan Ultes, Satoshi Nakamura, Wolfgang Minker
Cultural Communication Idiosyncrasies in Human-Computer Interaction. SIGDIAL Conference (2016)
Stefan Ultes, Alexander Schmitt, Wolfgang Minker
Analysis of Temporal Features for Interaction Quality Estimation. CoRR (2016)
Stefan Ultes, Alexander Schmitt, Wolfgang Minker
Analysis of Temporal Features for Interaction Quality Estimation. IWSDS (2016)
Lina Maria Rojas-Barahona, Milica Gasic, Nikola Mrksic, Pei-Hao Su, Stefan Ultes, Tsung-Hsien Wen, Steve J. Young
Exploiting Sentence and Context Representations in Deep Neural Models for Spoken Language Understanding. COLING (2016)
Tsung-Hsien Wen, Milica Gasic, Nikola Mrksic, Lina Maria Rojas-Barahona, Pei-Hao Su, Stefan Ultes, David Vandyke, Steve J. Young
Conditional Generation and Snapshot Learning in Neural Dialogue Systems. CoRR (2016)
Lina Maria Rojas-Barahona, Milica Gasic, Nikola Mrksic, Pei-Hao Su, Stefan Ultes, Tsung-Hsien Wen, Steve J. Young
Exploiting Sentence and Context Representations in Deep Neural Models for Spoken Language Understanding. CoRR (2016)
Maxim Sidorov, Christina Brester, Stefan Ultes, Alexander Schmitt
Salient Cross-Lingual Acoustic and Prosodic Features for English and German Emotion Recognition. IWSDS (2016)
Tsung-Hsien Wen, Milica Gasic, Nikola Mrksic, Lina Maria Rojas-Barahona, Pei-Hao Su, Stefan Ultes, David Vandyke, Steve J. Young
A Network-based End-to-End Trainable Task-oriented Dialogue System. CoRR (2016)
Pei-Hao Su, Milica Gasic, Nikola Mrksic, Lina Maria Rojas-Barahona, Stefan Ultes, David Vandyke, Tsung-Hsien Wen, Steve J. Young
On-line Active Reward Learning for Policy Optimisation in Spoken Dialogue Systems. CoRR (2016)
Pei-Hao Su, Milica Gasic, Nikola Mrksic, Lina Maria Rojas-Barahona, Stefan Ultes, David Vandyke, Tsung-Hsien Wen, Steve J. Young
Continuously Learning Neural Dialogue Management. CoRR (2016)

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Publication Activity (10 Years)

Top Topics

Top Venues

Stefan Ultes