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In education, open-ended quiz questions have become an important tool for assessing the knowledge of students. Yet, manually preparing such questions is a tedious task, and thus automatic question generation has been proposed as a possible…

Computation and Language · Computer Science 2021-08-31 Kristiyan Vachev , Momchil Hardalov , Georgi Karadzhov , Georgi Georgiev , Ivan Koychev , Preslav Nakov

Acquiring accurate summarization and sentiment from user reviews is an essential component of modern e-commerce platforms. Review summarization aims at generating a concise summary that describes the key opinions and sentiment of a review,…

Computation and Language · Computer Science 2021-02-03 Hou Pong Chan , Wang Chen , Irwin King

E-commerce platforms generate vast volumes of user feedback, such as star ratings, written reviews, and comments. However, most recommendation engines rely primarily on numerical scores, often overlooking the nuanced opinions embedded in…

Information Retrieval · Computer Science 2025-05-08 Yogesh Gajula

Recent advancements in Natural Language Processing (NLP) have led to the development of NLP-based recommender systems that have shown superior performance. However, current models commonly treat items as mere IDs and adopt discriminative…

Information Retrieval · Computer Science 2023-04-11 Jinming Li , Wentao Zhang , Tian Wang , Guanglei Xiong , Alan Lu , Gerard Medioni

Automatic question generation is an important technique that can improve the training of question answering, help chatbots to start or continue a conversation with humans, and provide assessment materials for educational purposes. Existing…

Computation and Language · Computer Science 2019-02-28 Bang Liu , Mingjun Zhao , Di Niu , Kunfeng Lai , Yancheng He , Haojie Wei , Yu Xu

Sequence-to-Sequence (seq2seq) models have become overwhelmingly popular in building end-to-end trainable dialogue systems. Though highly efficient in learning the backbone of human-computer communications, they suffer from the problem of…

Computation and Language · Computer Science 2018-10-09 Hui Su , Xiaoyu Shen , Wenjie Li , Dietrich Klakow

Recently, open-domain dialogue systems have attracted growing attention. Most of them use the sequence-to-sequence (Seq2Seq) architecture to generate responses. However, traditional Seq2Seq-based open-domain dialogue models tend to generate…

Computation and Language · Computer Science 2020-07-06 Heng-Da Xu , Xian-Ling Mao , Zewen Chi , Jing-Jing Zhu , Fanshu Sun , Heyan Huang

In highly competitive software markets, user experience (UX) evaluation is crucial for ensuring software quality and fostering long-term product success. Such UX evaluations typically combine quantitative metrics from standardized…

Human-Computer Interaction · Computer Science 2026-02-02 Sandra Loop , Erik Bertram , Sebastian Juhl , Martin Schrepp

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…

Computation and Language · Computer Science 2021-09-17 Chenyang Lyu , Lifeng Shang , Yvette Graham , Jennifer Foster , Xin Jiang , Qun Liu

Negative reviews, the poor ratings in postpurchase evaluation, play an indispensable role in e-commerce, especially in shaping future sales and firm equities. However, extant studies seldom examine their potential value for sellers and…

Computation and Language · Computer Science 2020-05-21 Di Weng , Jichang Zhao

The automatic generation of educational questions will play a key role in scaling online education, enabling self-assessment at scale when a global population is manoeuvring their personalised learning journeys. We develop \textit{EduQG}, a…

Artificial Intelligence · Computer Science 2023-05-16 Sahan Bulathwela , Hamze Muse , Emine Yilmaz

Recommender systems can be formulated as a matrix completion problem, predicting ratings from user and item parameter vectors. Optimizing these parameters by subsampling data becomes difficult as the number of users and items grows. We…

Information Retrieval · Computer Science 2018-07-09 Elias Tragas , Calvin Luo , Maxime Gazeau , Kevin Luk , David Duvenaud

In E-commerce, a key challenge in text generation is to find a good trade-off between word diversity and accuracy (relevance) in order to make generated text appear more natural and human-like. In order to improve the relevance of generated…

Machine Learning · Computer Science 2021-02-24 Huajie Shao , Jun Wang , Haohong Lin , Xuezhou Zhang , Aston Zhang , Heng Ji , Tarek Abdelzaher

Intelligent and adaptive online education systems aim to make high-quality education available for a diverse range of students. However, existing systems usually depend on a pool of hand-made questions, limiting how fine-grained and…

Computation and Language · Computer Science 2021-06-09 Megha Srivastava , Noah Goodman

User-generated texts such as reviews and social media are valuable sources of information. Online reviews are important assets for users to buy a product, see a movie, or make a decision. Therefore, rating of a review is one of the reliable…

Computation and Language · Computer Science 2018-05-23 Mohammadamir Kavousi , Sepehr Saadatmand

Recent studies show that Question Answering (QA) based on Answer Sentence Selection (AS2) can be improved by generating an improved answer from the top-k ranked answer sentences (termed GenQA). This allows for synthesizing the information…

Computation and Language · Computer Science 2022-10-25 Matteo Gabburo , Rik Koncel-Kedziorski , Siddhant Garg , Luca Soldaini , Alessandro Moschitti

Natural question generation (QG) aims to generate questions from a passage and an answer. Previous works on QG either (i) ignore the rich structure information hidden in text, (ii) solely rely on cross-entropy loss that leads to issues like…

Computation and Language · Computer Science 2020-08-28 Yu Chen , Lingfei Wu , Mohammed J. Zaki

Information extraction and user intention identification are central topics in modern query understanding and recommendation systems. In this paper, we propose DeepProbe, a generic information-directed interaction framework which is built…

Machine Learning · Statistics 2018-03-02 Zi Yin , Keng-hao Chang , Ruofei Zhang

Conditional set generation learns a mapping from an input sequence of tokens to a set. Several NLP tasks, such as entity typing and dialogue emotion tagging, are instances of set generation. Seq2Seq models, a popular choice for set…

Computation and Language · Computer Science 2022-10-25 Aman Madaan , Dheeraj Rajagopal , Niket Tandon , Yiming Yang , Antoine Bosselut

Text-based Question Generation (QG) aims at generating natural and relevant questions that can be answered by a given answer in some context. Existing QG models suffer from a "semantic drift" problem, i.e., the semantics of the…

Computation and Language · Computer Science 2019-09-16 Shiyue Zhang , Mohit Bansal