Search Results for author: Wolfgang Minker

Found 52 papers, 1 papers with code

From Argument Search to Argumentative Dialogue: A Topic-independent Approach to Argument Acquisition for Dialogue Systems

1 code implementation SIGDIAL (ACL) 2021 Niklas Rach, Carolin Schindler, Isabel Feustel, Johannes Daxenberger, Wolfgang Minker, Stefan Ultes

Despite the remarkable progress in the field of computational argumentation, dialogue systems concerned with argumentative tasks often rely on structured knowledge about arguments and their relations.

Relation Classification

Towards Speech-only Opinion-level Sentiment Analysis

no code implementations LREC 2022 Annalena Aicher, Alisa Gazizullina, Aleksei Gusev, Yuri Matveev, Wolfgang Minker

The growing popularity of various forms of Spoken Dialogue Systems (SDS) raises the demand for their capability of implicitly assessing the speaker’s sentiment from speech only.

Sentiment Analysis Speaker Verification +1

User Interest Modelling in Argumentative Dialogue Systems

no code implementations LREC 2022 Annalena Aicher, Nadine Gerstenlauer, Wolfgang Minker, Stefan Ultes

Most systems helping to provide structured information and support opinion building, discuss with users without considering their individual interest.

System-Initiated Transitions from Chit-Chat to Task-Oriented Dialogues with Transition Info Extractor and Transition Sentence Generator

no code implementations6 Aug 2023 Ye Liu, Stefan Ultes, Wolfgang Minker, Wolfgang Maier

In this work, we study dialogue scenarios that start from chit-chat but eventually switch to task-related services, and investigate how a unified dialogue model, which can engage in both chit-chat and task-oriented dialogues, takes the initiative during the dialogue mode transition from chit-chat to task-oriented in a coherent and cooperative manner.

Response Generation Sentence

Unified Conversational Models with System-Initiated Transitions between Chit-Chat and Task-Oriented Dialogues

no code implementations4 Jul 2023 Ye Liu, Stefan Ultes, Wolfgang Minker, Wolfgang Maier

We contribute two efficient prompt models which can proactively generate a transition sentence to trigger system-initiated transitions in a unified dialogue model.

Sentence Spoken Dialogue Systems

Development of a Trust-Aware User Simulator for Statistical Proactive Dialog Modeling in Human-AI Teams

no code implementations24 Apr 2023 Matthias Kraus, Ron Riekenbrauck, Wolfgang Minker

In this paper, we present the development of a corpus-based user simulator for training and testing proactive dialog policies.

Open-Ended Question Answering

Does It Affect You? Social and Learning Implications of Using Cognitive-Affective State Recognition for Proactive Human-Robot Tutoring

no code implementations20 Dec 2022 Matthias Kraus, Diana Betancourt, Wolfgang Minker

For this reason, a concept learning task scenario was observed where a robotic assistant proactively helped when negative user states were detected.

ConceptNet infused DialoGPT for Underlying Commonsense Understanding and Reasoning in Dialogue Response Generation

no code implementations29 Sep 2022 Ye Liu, Wolfgang Maier, Wolfgang Minker, Stefan Ultes

The pre-trained conversational models still fail to capture the implicit commonsense (CS) knowledge hidden in the dialogue interaction, even though they were pre-trained with an enormous dataset.

Response Generation Sentence

Context Matters in Semantically Controlled Language Generation for Task-oriented Dialogue Systems

no code implementations ICON 2021 Ye Liu, Wolfgang Maier, Wolfgang Minker, Stefan Ultes

We utilize the pre-trained multi-context ConveRT model for context representation in a model trained from scratch; and leverage the immediate preceding user utterance for context generation in a model adapted from the pre-trained GPT-2.

Response Generation Task-Oriented Dialogue Systems +1

Empathetic Dialogue Generation with Pre-trained RoBERTa-GPT2 and External Knowledge

no code implementations7 Sep 2021 Ye Liu, Wolfgang Maier, Wolfgang Minker, Stefan Ultes

One challenge for dialogue agents is to recognize feelings of the conversation partner and respond accordingly.

Dialogue Generation

Natural Language Understanding for Argumentative Dialogue Systems in the Opinion Building Domain

no code implementations3 Mar 2021 Waheed Ahmed Abro, Annalena Aicher, Niklas Rach, Stefan Ultes, Wolfgang Minker, Guilin Qi

Intent classifier model stacks BiLSTM with attention mechanism on top of the pre-trained BERT model and fine-tune the model for recognizing the user intent, whereas the argument similarity model employs BERT+BiLSTM for identifying system arguments the user refers to in his or her natural language utterances.

Natural Language Understanding STS

How Users React to Proactive Voice Assistant Behavior While Driving

no code implementations LREC 2020 Maria Schmidt, Wolfgang Minker, Steffen Werner

Finally, the users reacted significantly faster to proactive PA actions, which we interpret as less cognitive load compared to non-proactive behavior.

Evaluation of Argument Search Approaches in the Context of Argumentative Dialogue Systems

no code implementations LREC 2020 Niklas Rach, Yuki Matsuda, Johannes Daxenberger, Stefan Ultes, Keiichi Yasumoto, Wolfgang Minker

We present an approach to evaluate argument search techniques in view of their use in argumentative dialogue systems by assessing quality aspects of the retrieved arguments.

Comparative Study of Sentence Embeddings for Contextual Paraphrasing

no code implementations LREC 2020 Louisa Pragst, Wolfgang Minker, Stefan Ultes

Paraphrasing is an important aspect of natural-language generation that can produce more variety in the way specific content is presented.

Clustering Sentence +2

Cross-Corpus Data Augmentation for Acoustic Addressee Detection

no code implementations WS 2019 Oleg Akhtiamov, Ingo Siegert, Alexey Karpov, Wolfgang Minker

Mixup is shown to be beneficial for merging acoustic data (extracted features but not raw waveforms) from different domains that allows us to reach a higher classification performance on human-machine AD and also for training a multipurpose neural network that is capable of solving both human-machine and adult-child AD problems.

Cross-corpus Data Augmentation +1

Interaction Quality Estimation Using Long Short-Term Memories

no code implementations WS 2017 Niklas Rach, Wolfgang Minker, Stefan Ultes

For estimating the Interaction Quality (IQ) in Spoken Dialogue Systems (SDS), the dialogue history is of significant importance.

General Classification Spoken Dialogue Systems

A Comparative Study of Text Preprocessing Approaches for Topic Detection of User Utterances

no code implementations LREC 2016 Roman Sergienko, Muhammad Shan, Wolfgang Minker

The numerical experiments have shown that the simultaneous use of the novel proposed approaches (collectives of term weighting methods and the novel feature transformation method) allows reaching the high classification results with very small number of features.

Classification Clustering +3

Could Speaker, Gender or Age Awareness be beneficial in Speech-based Emotion Recognition?

no code implementations LREC 2016 Maxim Sidorov, Alex Schmitt, er, Eugene Semenkin, Wolfgang Minker

Emotion Recognition (ER) is an important part of dialogue analysis which can be used in order to improve the quality of Spoken Dialogue Systems (SDSs).

Emotion Recognition Spoken Dialogue Systems

First Insight into Quality-Adaptive Dialogue

no code implementations LREC 2014 Stefan Ultes, H{\"u}seyin Dikme, Wolfgang Minker

While Spoken Dialogue Systems have gained in importance in recent years, most systems applied in the real world are still static and error-prone.

Dialogue Management Management +1

Using multimodal resources for explanation approaches in intelligent systems

no code implementations LREC 2012 Florian Nothdurft, Wolfgang Minker

We propose that not only creating multimodal output for the user is important, but to take multimodal input resources into account for the decision when and how to interact.

Adaptive Speech Understanding for Intuitive Model-based Spoken Dialogues

no code implementations LREC 2012 Tobias Heinroth, Maximilian Grotz, Florian Nothdurft, Wolfgang Minker

Thus we present three enhancements towards a more sophisticated use of the ontology-based dialogue models and show how grammars may dynamically be adapted in order to understand intuitive user utterances.

Dialogue Management Information Retrieval +1

Investigating Verbal Intelligence Using the TF-IDF Approach

no code implementations LREC 2012 Kseniya Zablotskaya, Fern Mart{\'\i}nez, o Fern{\'a}ndez, Wolfgang Minker

In this paper we also checked a hypothesis that differences in vocabulary of speakers yielding different verbal intelligence are sufficient enough for good classification results.

Relating Dominance of Dialogue Participants with their Verbal Intelligence Scores

no code implementations LREC 2012 Kseniya Zablotskaya, Umair Rahim, Fern Mart{\'\i}nez, o Fern{\'a}ndez, Wolfgang Minker

All the dialogues were divided into three groups: H-H is a group of dialogues between higher verbal intelligence participants, L-L is a group of dialogues between lower verbal intelligence participant and L-H is a group of all the other dialogues.

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