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Accurately predicting the behavior of complex dynamical systems, characterized by high-dimensional multivariate time series(MTS) in interconnected sensor networks, is crucial for informed decision-making in various applications to minimize…

In this paper, a semantic communication framework is proposed for textual data transmission. In the studied model, a base station (BS) extracts the semantic information from textual data, and transmits it to each user. The semantic…

信息论 · 计算机科学 2022-08-18 Yining Wang , Mingzhe Chen , Tao Luo , Walid Saad , Dusit Niyato , H. Vincent Poor , Shuguang Cui

Knowledge graph-grounded dialog generation requires retrieving a dialog-relevant subgraph from the given knowledge base graph and integrating it with the dialog history. Previous works typically represent the graph using an external…

计算与语言 · 计算机科学 2024-10-15 Jinyoung Park , Minseok Joo , Joo-Kyung Kim , Hyunwoo J. Kim

Knowledge graph completion demands effective modeling of multifaceted semantic relationships between entities. Yet, prevailing methods, which rely on static scoring functions over learned embeddings, struggling to simultaneously capture…

计算与语言 · 计算机科学 2025-09-03 Siyuan Li , Ruitong Liu , Yan Wen , Te Sun , Andi Zhang , Yanbiao Ma , Xiaoshuai Hao

Document Grounded Conversations is a task to generate dialogue responses when chatting about the content of a given document. Obviously, document knowledge plays a critical role in Document Grounded Conversations, while existing dialogue…

计算与语言 · 计算机科学 2019-08-02 Zekang Li , Cheng Niu , Fandong Meng , Yang Feng , Qian Li , Jie Zhou

Effective knowledge management is critical for preserving institutional expertise and improving the efficiency of workforce training in state transportation agencies. Traditional approaches, such as static documentation, classroom-based…

计算与语言 · 计算机科学 2026-03-05 Divija Amaram , Lu Gao , Gowtham Reddy Gudla , Tejaswini Sanjay Katale

The rapid advancement of speech-to-speech (S2S) large language models (LLMs) has significantly improved real-time spoken interaction. However, current evaluation frameworks remain inadequate for assessing performance in complex, multi-turn…

计算与语言 · 计算机科学 2025-09-16 Yuhao Du , Qianwei Huang , Guo Zhu , Zhanchen Dai , Shunian Chen , Qiming Zhu , Le Pan , Minghao Chen , Yuhao Zhang , Li Zhou , Benyou Wang , Haizhou Li

Semantic web technologies have significantly contributed with effective solutions for the problems of data integration and knowledge graph creation. However, with the rapid growth of big data in diverse domains, different interoperability…

数据库 · 计算机科学 2022-09-22 Samaneh Jozashoori , Maria-Esther Vidal

In end-to-end dialogue modeling and agent learning, it is important to (1) effectively learn knowledge from data, and (2) fully utilize heterogeneous information, e.g., dialogue act flow and utterances. However, the majority of existing…

计算与语言 · 计算机科学 2019-11-12 Zhuoxuan Jiang , Ziming Huang , Dong Sheng Li , Xian-Ling Mao

Remote sensing change detection is pivotal for urban monitoring, disaster assessment, and environmental resource management. Yet, unimodal deep learning methods frequently confuse genuine semantic changes with visually similar but…

计算机视觉与模式识别 · 计算机科学 2026-05-11 Kai Zheng , Hang-Cheng Dong , Jiatong Pan , Zhenkai Wu , Fupeng Wei , Wei Zhang

Time series anomaly detection plays a critical role in many dynamic systems. Despite its importance, previous approaches have primarily relied on unimodal numerical data, overlooking the importance of complementary information from other…

机器学习 · 计算机科学 2026-03-24 Shiyan Hu , Jianxin Jin , Yang Shu , Peng Chen , Bin Yang , Chenjuan Guo

Spurred by a huge interest in the post-Shannon communication, it has recently been shown that leveraging semantics can significantly improve the communication effectiveness across many tasks. In this article, inspired by human…

信息论 · 计算机科学 2023-03-10 Hyowoon Seo , Jihong Park , Mehdi Bennis , Mérouane Debbah

There are three modalities in the reading comprehension setting: question, answer and context. The task of question answering or question generation aims to infer an answer or a question when given the counterpart based on context. We…

人工智能 · 计算机科学 2018-09-11 Han Xiao , Feng Wang , Jianfeng Yan , Jingyao Zheng

Existing methods for Dialogue Response Generation (DRG) in Task-oriented Dialogue Systems (TDSs) can be grouped into two categories: template-based and corpus-based. The former prepare a collection of response templates in advance and fill…

计算与语言 · 计算机科学 2020-08-11 Phillip Lippe , Pengjie Ren , Hinda Haned , Bart Voorn , Maarten de Rijke

Semantic communication shifts the focus from bit-level accuracy to task-relevant semantic delivery, enabling efficient and intelligent communication for next-generation networks. However, existing multi-modal solutions often process all…

信息论 · 计算机科学 2026-01-01 Yujie Zhou , Cheng Peng , Rulong Wang , Yong Xiao , Yingyu Li , Guangming Shi , Ping Zhang

End-to-end task-oriented dialogue systems aim to generate system responses directly from plain text inputs. There are two challenges for such systems: one is how to effectively incorporate external knowledge bases (KBs) into the learning…

计算与语言 · 计算机科学 2020-10-06 Shiquan Yang , Rui Zhang , Sarah Erfani

Existing studies in dialogue system research mostly treat task-oriented dialogue and chit-chat as separate domains. Towards building a human-like assistant that can converse naturally and seamlessly with users, it is important to build a…

计算与语言 · 计算机科学 2022-05-12 Zhiyu Chen , Bing Liu , Seungwhan Moon , Chinnadhurai Sankar , Paul Crook , William Yang Wang

Mental health disorders impose a substantial global socioeconomic burden. While large language models (LLMs) offer 24/7, non-judgmental interactions to address this gap, pretrained models lack contextual coherence and emotional alignment…

计算与语言 · 计算机科学 2026-02-17 Eric Hua Qing Zhang , Julia Ive

We present a novel approach to learn representations for sentence-level semantic similarity using conversational data. Our method trains an unsupervised model to predict conversational input-response pairs. The resulting sentence embeddings…

The task-oriented semantic communication systems have achieved significant performance gain, however, the paradigm that employs a model for a specific task might be limited, since the system has to be updated once the task is changed or…

信号处理 · 电气工程与系统科学 2022-06-02 Guangyi Zhang , Qiyu Hu , Zhijin Qin , Yunlong Cai , Guanding Yu