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Task-oriented dialogue systems have become overwhelmingly popular in recent researches. Dialogue understanding is widely used to comprehend users' intent, emotion and dialogue state in task-oriented dialogue systems. Most previous works on…

Computation and Language · Computer Science 2022-03-08 Nan Su , Yuchi Zhang , Chao Liu , Bingzhu Du , Yongliang Wang

Inspired by the impressive capabilities of GPT-4o, there is growing interest in enabling speech language models (SLMs) to engage in natural, fluid spoken interactions with humans. Recent advancements have led to the development of several…

Computation and Language · Computer Science 2025-06-12 Qichao Wang , Ziqiao Meng , Wenqian Cui , Yifei Zhang , Pengcheng Wu , Bingzhe Wu , Irwin King , Liang Chen , Peilin Zhao

Sequence-to-sequence state-of-the-art systems for dialogue state tracking (DST) use the full dialogue history as input, represent the current state as a list with all the slots, and generate the entire state from scratch at each dialogue…

Computation and Language · Computer Science 2024-10-17 Pietro Lesci , Yoshinari Fujinuma , Momchil Hardalov , Chao Shang , Yassine Benajiba , Lluis Marquez

Traditional NMF-based signal decomposition relies on the factorization of spectral data, which is typically computed by means of short-time frequency transform. In this paper we propose to relax the choice of a pre-fixed transform and learn…

Machine Learning · Computer Science 2017-12-18 Dylan Fagot , Cédric Févotte , Herwig Wendt

This study aims to generate responses based on real-world facts by conditioning context and external facts extracted from information websites. Our system is an ensemble system that combines three modules: generated-based module,…

Computation and Language · Computer Science 2019-02-06 Ryota Tanaka , Akihide Ozeki , Shugo Kato , Akinobu Lee

Scalability for handling unknown slot values is a important problem in dialogue state tracking (DST). As far as we know, previous scalable DST approaches generally rely on either the candidate generation from slot tagging output or the span…

Computation and Language · Computer Science 2021-06-18 Puhai Yang , Heyan Huang , Xianling Mao

Various informative factors mixed in speech signals, leading to great difficulty when decoding any of the factors. An intuitive idea is to factorize each speech frame into individual informative factors, though it turns out to be highly…

Audio and Speech Processing · Electrical Eng. & Systems 2018-03-05 Lantian Li , Dong Wang , Yixiang Chen , Ying Shi , Zhiyuan Tang , Thomas Fang Zheng

Recent works on deep non-linear spatially selective filters demonstrate exceptional enhancement performance with computationally lightweight architectures for stationary speakers of known directions. However, to maintain this performance in…

Audio and Speech Processing · Electrical Eng. & Systems 2025-07-08 Jakob Kienegger , Alina Mannanova , Huajian Fang , Timo Gerkmann

End-to-end spoken dialogue state tracking (DST) is made difficult by the tandem of having to handle speech input and data scarcity. Combining speech foundation encoders and large language models has been proposed in recent work as to…

Computation and Language · Computer Science 2025-12-01 Katia Vendrame , Bolaji Yusuf , Santosh Kesiraju , Šimon Sedláček , Oldřich Plchot , Jan Černocký

Task-oriented dialogue systems aim to help users achieve their goals in specific domains. Recent neural dialogue systems use the entire dialogue history for abundant contextual information accumulated over multiple conversational turns.…

Computation and Language · Computer Science 2021-03-12 Hyunmin Jeon , Gary Geunbae Lee

We present our work on Track 4 in the Dialogue System Technology Challenges 8 (DSTC8). The DSTC8-Track 4 aims to perform dialogue state tracking (DST) under the zero-shot settings, in which the model needs to generalize on unseen service…

Computation and Language · Computer Science 2020-02-04 Yu-Ping Ruan , Zhen-Hua Ling , Jia-Chen Gu , Quan Liu

Dialogue state tracking is a key part of a task-oriented dialogue system, which estimates the user's goal at each turn of the dialogue. In this paper, we propose the Point-Or-Generate Dialogue State Tracker (POGD). POGD solves the dialogue…

Computation and Language · Computer Science 2020-08-11 Song Xiaohui , Hu Songlin

Task-oriented dialog systems have witnessed substantial progress due to conversational pre-training techniques. Yet, two significant challenges persist. First, most systems primarily utilize the latest turn's state label for the generator.…

Computation and Language · Computer Science 2024-01-30 Longxiang Liu , Xiuxing Li , Yang Feng

With the recent success of representation learning methods, which includes deep learning as a special case, there has been considerable interest in developing representation learning techniques that can incorporate known physical…

Machine Learning · Computer Science 2021-09-10 Harsha Vardhan Tetali , Joel B. Harley , Benjamin D. Haeffele

There is an increasing demand for task-oriented dialogue systems which can assist users in various activities such as booking tickets and restaurant reservations. In order to complete dialogues effectively, dialogue policy plays a key role…

Computation and Language · Computer Science 2019-09-23 Tian Lan , Xianling Mao , Heyan Huang

In typical multi-talker speech recognition systems, a neural network-based acoustic model predicts senone state posteriors for each speaker. These are later used by a single-talker decoder which is applied on each speaker-specific output…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-18 Martin Kocour , Kateřina Žmolíková , Lucas Ondel , Ján Švec , Marc Delcroix , Tsubasa Ochiai , Lukáš Burget , Jan Černocký

In multi-speaker applications is common to have pre-computed models from enrolled speakers. Using these models to identify the instances in which these speakers intervene in a recording is the task of speaker tracking. In this paper, we…

This paper introduces a novel approach to Dialogue State Tracking (DST) that leverages Large Language Models (LLMs) to generate natural language descriptions of dialogue states, moving beyond traditional slot-value representations.…

Computation and Language · Computer Science 2025-03-13 Rafael Carranza , Mateo Alejandro Rojas

We consider the problem of decomposing a global task assigned to a multi-agent system, expressed as a formula within a fragment of Signal Temporal Logic (STL), under range-limited communication. Given a global task expressed as a…

Systems and Control · Electrical Eng. & Systems 2025-08-19 Gregorio Marchesini , Siyuan Liu , Lars Lindemann , Dimos V. Dimarogonas

Though Dialogue State Tracking (DST) is a core component of spoken dialogue systems, recent work on this task mostly deals with chat corpora, disregarding the discrepancies between spoken and written language.In this paper, we propose…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-01 Léo Jacqmin , Lucas Druart , Yannick Estève , Benoît Favre , Lina Maria Rojas-Barahona , Valentin Vielzeuf