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Topic models are popular statistical tools for detecting latent semantic topics in a text corpus. They have been utilized in various applications across different fields. However, traditional topic models have some limitations, including…

Computation and Language · Computer Science 2023-10-10 Pritom Saha Akash , Trisha Das , Kevin Chen-Chuan Chang

Compared with standard text, understanding dialogue is more challenging for machines as the dynamic and unexpected semantic changes in each turn. To model such inconsistent semantics, we propose a simple but effective Hierarchical Dialogue…

Computation and Language · Computer Science 2023-05-02 Xiao Liu , Jian Zhang , Heng Zhang , Fuzhao Xue , Yang You

Theme detection is a fundamental task in user-centric dialogue systems, aiming to identify the latent topic of each utterance without relying on predefined schemas. Unlike intent induction, which operates within fixed label spaces, theme…

Computation and Language · Computer Science 2025-12-29 Rui Ke , Jiahui Xu , Shenghao Yang , Kuang Wang , Feng Jiang , Haizhou Li

Due to the lack of publicly available resources, conversation summarization has received far less attention than text summarization. As the purpose of conversations is to exchange information between at least two interlocutors, key…

Computation and Language · Computer Science 2019-10-04 Zhengyuan Liu , Angela Ng , Sheldon Lee , Ai Ti Aw , Nancy F. Chen

Topic drift is a common phenomenon in multi-turn dialogue. Therefore, an ideal dialogue generation models should be able to capture the topic information of each context, detect the relevant context, and produce appropriate responses…

Computation and Language · Computer Science 2020-09-29 Hainan Zhang , Yanyan Lan , Liang Pang , Hongshen Chen , Zhuoye Ding , Dawei Yin

Existing deep hierarchical topic models are able to extract semantically meaningful topics from a text corpus in an unsupervised manner and automatically organize them into a topic hierarchy. However, it is unclear how to incorporate prior…

Machine Learning · Computer Science 2021-10-28 Zhibin Duan , Yishi Xu , Bo Chen , Dongsheng Wang , Chaojie Wang , Mingyuan Zhou

Dialogue systems are a popular natural language processing (NLP) task as it is promising in real-life applications. It is also a complicated task since many NLP tasks deserving study are involved. As a result, a multitude of novel works on…

Computation and Language · Computer Science 2022-03-31 Jinjie Ni , Tom Young , Vlad Pandelea , Fuzhao Xue , Erik Cambria

Current research has explored how Generative AI can support the brainstorming process for content creators, but a gap remains in exploring support-tools for the pre-writing process. Specifically, our research is focused on supporting users…

Human-Computer Interaction · Computer Science 2024-06-19 Grace Li , Tao Long , Lydia B. Chilton

Pre-trained models have achieved excellent performance on the dialogue task. However, for the continual increase of online chit-chat scenarios, directly fine-tuning these models for each of the new tasks not only explodes the capacity of…

Computation and Language · Computer Science 2022-03-22 Shaoxiong Feng , Xuancheng Ren , Kan Li , Xu Sun

Conversational context information, higher-level knowledge that spans across sentences, can help to recognize a long conversation. However, existing speech recognition models are typically built at a sentence level, and thus it may not…

Computation and Language · Computer Science 2019-05-23 Suyoun Kim , Florian Metze

Extracting and identifying latent topics in large text corpora has gained increasing importance in Natural Language Processing (NLP). Most models, whether probabilistic models similar to Latent Dirichlet Allocation (LDA) or neural topic…

Computation and Language · Computer Science 2023-03-31 Anton Thielmann , Quentin Seifert , Arik Reuter , Elisabeth Bergherr , Benjamin Säfken

In this paper, we propose a novel online topic tracking framework, named IEDL, for tracking the topic changes related to deep learning techniques on Stack Exchange and automatically interpreting each identified topic. The proposed framework…

Information Retrieval · Computer Science 2019-07-04 Fenglei Jin , Cuiyun Gao , Michael R. Lyu

Recent neural supervised topic segmentation models achieve distinguished superior effectiveness over unsupervised methods, with the availability of large-scale training corpora sampled from Wikipedia. These models may, however, suffer from…

Computation and Language · Computer Science 2022-09-20 Linzi Xing , Patrick Huber , Giuseppe Carenini

This paper presents a novel knowledge distillation method for dialogue sequence labeling. Dialogue sequence labeling is a supervised learning task that estimates labels for each utterance in the target dialogue document, and is useful for…

Computation and Language · Computer Science 2021-11-23 Shota Orihashi , Yoshihiro Yamazaki , Naoki Makishima , Mana Ihori , Akihiko Takashima , Tomohiro Tanaka , Ryo Masumura

Deep learning is providing very positive results in areas related to conversational interfaces, such as speech recognition, but its potential benefit for dialog management has still not been fully studied. In this paper, we perform an…

Computation and Language · Computer Science 2021-09-01 Lukáš Matějů , David Griol , Zoraida Callejas , José Manuel Molina , Araceli Sanchis

We propose a new algorithm for topic modeling, Vec2Topic, that identifies the main topics in a corpus using semantic information captured via high-dimensional distributed word embeddings. Our technique is unsupervised and generates a list…

Computation and Language · Computer Science 2016-03-16 Ramandeep S Randhawa , Parag Jain , Gagan Madan

Supervised topic models are often sought to balance prediction quality and interpretability. However, when models are (inevitably) misspecified, standard approaches rarely deliver on both. We introduce a novel approach, the…

Machine Learning · Computer Science 2020-03-04 Jason Ren , Russell Kunes , Finale Doshi-Velez

We present a joint modeling approach to identify salient discussion points in spoken meetings as well as to label the discourse relations between speaker turns. A variation of our model is also discussed when discourse relations are treated…

Computation and Language · Computer Science 2017-05-16 Kechen Qin , Lu Wang , Joseph Kim

A conversational system needs to know how to switch between topics to continue the conversation for a more extended period. For this topic detection from dialogue corpus has become an important task for a conversation and accurate…

Information Retrieval · Computer Science 2020-06-08 Haider Khalid , Vincent Wade

With the advent of semantic web, various tools and techniques have been introduced for presenting and organizing knowledge. Concept hierarchies are one such technique which gained significant attention due to its usefulness in creating…

Artificial Intelligence · Computer Science 2016-11-30 V. S. Anoop , S. Asharaf , P. Deepak