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Conversational recommender systems aim to provide personalized recommendations via natural language interactions. However, existing approaches either decouple recommendation from dialog generation or rely on retrieval-based pipelines,…

信息检索 · 计算机科学 2026-05-22 Sixiao Zhang , Mingrui Liu , Cheng Long

Artificial Intelligence Generated Content (AIGC) services can efficiently satisfy user-specified content creation demands, but the high computational requirements pose various challenges to supporting mobile users at scale. In this paper,…

分布式、并行与集群计算 · 计算机科学 2024-09-17 Shuangwei Gao , Peng Yang , Yuxin Kong , Feng Lyu , Ning Zhang

Automatic question generation according to an answer within the given passage is useful for many applications, such as question answering system, dialogue system, etc. Current neural-based methods mostly take two steps which extract several…

计算与语言 · 计算机科学 2019-07-02 Yutong Wang , Jiyuan Zheng , Qijiong Liu , Zhou Zhao , Jun Xiao , Yueting Zhuang

Question Generation (QG) is the task of generating a plausible question for a given <passage, answer> pair. Template-based QG uses linguistically-informed heuristics to transform declarative sentences into interrogatives, whereas supervised…

计算与语言 · 计算机科学 2021-09-17 Chenyang Lyu , Lifeng Shang , Yvette Graham , Jennifer Foster , Xin Jiang , Qun Liu

Automatic question generation is one of the most challenging tasks of Natural Language Processing. It requires "bidirectional" language processing: firstly, the system has to understand the input text (Natural Language Understanding) and it…

计算与语言 · 计算机科学 2022-05-26 Miroslav Blšták , Viera Rozinajová

Generating questions along with associated answers from a text has applications in several domains, such as creating reading comprehension tests for students, or improving document search by providing auxiliary questions and answers based…

计算与语言 · 计算机科学 2023-05-30 Asahi Ushio , Fernando Alva-Manchego , Jose Camacho-Collados

Retrieval-Augmented Generation (RAG) enables large language models (LLMs) to access broader knowledge sources, yet factual inconsistencies persist due to noise in retrieved documents-even with advanced retrieval methods. We demonstrate that…

计算与语言 · 计算机科学 2025-06-04 Yongjian Li , HaoCheng Chu , Yukun Yan , Zhenghao Liu , Shi Yu , Zheni Zeng , Ruobing Wang , Sen Song , Zhiyuan Liu , Maosong Sun

Opinion summarization is the task of automatically creating summaries that reflect subjective information expressed in multiple documents, such as product reviews. While the majority of previous work has focused on the extractive setting,…

计算与语言 · 计算机科学 2020-04-21 Arthur Bražinskas , Mirella Lapata , Ivan Titov

Product information extraction is crucial for e-commerce services, but obtaining high-quality labeled datasets remains challenging. We present a systematic approach for generating synthetic e-commerce product data using Large Language…

计算与语言 · 计算机科学 2026-01-09 Virginia Negri , Víctor Martínez Gómez , Sergio A. Balanya , Subburam Rajaram

Previous studies have demonstrated that proactive interaction with user reviews has a positive impact on the perception of app users and encourages them to submit revised ratings. Nevertheless, developers encounter challenges in managing a…

计算与语言 · 计算机科学 2024-05-08 Guy Azov , Tatiana Pelc , Adi Fledel Alon , Gila Kamhi

Adaptive Retrieval-Augmented Generation (RAG) promises accuracy and efficiency by dynamically triggering retrieval only when needed and is widely used in practice. However, real-world queries vary in surface form even with the same intent,…

计算与语言 · 计算机科学 2026-04-14 Yunah Jang , Megha Sundriyal , Kyomin Jung , Meeyoung Cha

Retrieval-Augmented Generation (RAG), by incorporating external knowledge with parametric memory of language models, has become the state-of-the-art architecture for open-domain QA tasks. However, common knowledge bases are inherently…

计算与语言 · 计算机科学 2023-12-01 Zhebin Zhang , Xinyu Zhang , Yuanhang Ren , Saijiang Shi , Meng Han , Yongkang Wu , Ruofei Lai , Zhao Cao

Knowledge-aided dialogue response generation aims at augmenting chatbots with relevant external knowledge in the hope of generating more informative responses. The majority of previous work assumes that the relevant knowledge is given as…

计算与语言 · 计算机科学 2023-02-21 Ante Wang , Linfeng Song , Qi Liu , Haitao Mi , Longyue Wang , Zhaopeng Tu , Jinsong Su , Dong Yu

Attribute values of the products are an essential component in any e-commerce platform. Attribute Value Extraction (AVE) deals with extracting the attributes of a product and their values from its title or description. In this paper, we…

计算与语言 · 计算机科学 2022-08-16 Kalyani Roy , Tapas Nayak , Pawan Goyal

The increase in academic dishonesty cases among college students has raised concern, particularly due to the shift towards online learning caused by the pandemic. We aim to develop and implement a method capable of generating tailored…

计算与语言 · 计算机科学 2024-05-10 Yicheng Yang , Xinyu Wang , Haoming Yu , Zhiyuan Li

Nowadays, more and more customers browse and purchase products in favor of using mobile E-Commerce Apps such as Taobao and Amazon. Since merchants are usually inclined to describe redundant and over-informative product titles to attract…

计算与语言 · 计算机科学 2019-04-04 Jian-Guo Zhang , Pengcheng Zou , Zhao Li , Yao Wan , Xiuming Pan , Yu Gong , Philip S. Yu

A huge volume of user-generated content is daily produced on social media. To facilitate automatic language understanding, we study keyphrase prediction, distilling salient information from massive posts. While most existing methods extract…

计算与语言 · 计算机科学 2019-06-11 Yue Wang , Jing Li , Hou Pong Chan , Irwin King , Michael R. Lyu , Shuming Shi

Resolving knowledge conflicts is a crucial challenge in Question Answering (QA) tasks, as the internet contains numerous conflicting facts and opinions. While some research has made progress in tackling ambiguous settings where multiple…

计算与语言 · 计算机科学 2024-10-30 Sagi Shaier , Ari Kobren , Philip Ogren

Academic dishonesty is met with zero tolerance in higher education, yet plagiarism has become increasingly prevalent in the era of online teaching and learning. Automatic Question Generation (AQG) presents a potential solution to mitigate…

计算与语言 · 计算机科学 2025-10-15 Xinyu Wang , Haoming Yu , Yicheng Yang , Zhiyuan Li

Traditional recommendation systems mainly focus on modeling user interests. However, the dynamics of recommended items caused by attribute modifications (e.g. changes in prices) are also of great importance in real systems, especially in…

信息检索 · 计算机科学 2022-08-30 Rui Ma , Ning Liu , Jingsong Yuan , Huafeng Yang , Jiandong Zhang