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Generating diverse sequences is important in many NLP applications such as question generation or summarization that exhibit semantically one-to-many relationships between source and the target sequences. We present a method to explicitly…

Computation and Language · Computer Science 2019-09-05 Jaemin Cho , Minjoon Seo , Hannaneh Hajishirzi

The need for interpretability in deep learning has driven interest in counterfactual explanations, which identify minimal changes to an instance that change a model's prediction. Current counterfactual (CF) generation methods require…

Computation and Language · Computer Science 2025-12-11 Van Bach Nguyen , Christin Seifert , Jörg Schlötterer

Large Language Models (LLMs) have demonstrated exceptional performance across diverse natural language processing tasks. However, these models exhibit a critical limitation in output diversity, often generating highly similar content across…

Computation and Language · Computer Science 2025-11-04 Zhiwen Ruan , Yixia Li , Yefeng Liu , Yun Chen , Weihua Luo , Peng Li , Yang Liu , Guanhua Chen

We consider multi-solution optimization and generative models for the generation of diverse artifacts and the discovery of novel solutions. In cases where the domain's factors of variation are unknown or too complex to encode manually,…

Machine Learning · Computer Science 2021-05-11 Alexander Hagg , Sebastian Berns , Alexander Asteroth , Simon Colton , Thomas Bäck

Difficulty-controllable question generation for reading comprehension has gained significant attention in the field of education as a fundamental tool for adaptive learning support. Although several neural question generation methods have…

Computation and Language · Computer Science 2026-03-24 Yuto Tomikawa , Masaki Uto

Previous methods on knowledge base question generation (KBQG) primarily focus on enhancing the quality of a single generated question. Recognizing the remarkable paraphrasing ability of humans, we contend that diverse texts should convey…

Computation and Language · Computer Science 2025-03-05 Shasha Guo , Jing Zhang , Xirui Ke , Cuiping Li , Hong Chen

The goal of text generation is to make machines express in human language. It is one of the most important yet challenging tasks in natural language processing (NLP). Since 2014, various neural encoder-decoder models pioneered by Seq2Seq…

Computation and Language · Computer Science 2022-01-25 Wenhao Yu , Chenguang Zhu , Zaitang Li , Zhiting Hu , Qingyun Wang , Heng Ji , Meng Jiang

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

It is challenging to perform lifelong language learning (LLL) on a stream of different tasks without any performance degradation comparing to the multi-task counterparts. To address this issue, we present Lifelong Language Knowledge…

Computation and Language · Computer Science 2020-10-06 Yung-Sung Chuang , Shang-Yu Su , Yun-Nung Chen

Question Generation (QG), as a challenging Natural Language Processing task, aims at generating questions based on given answers and context. Existing QG methods mainly focus on building or training models for specific QG datasets. These…

Computation and Language · Computer Science 2022-12-06 Wei Yuan , Hongzhi Yin , Tieke He , Tong Chen , Qiufeng Wang , Lizhen Cui

With the rapid development of artificial intelligence technology, Transformer structural pre-training model has become an important tool for large language model (LLM) tasks. In the field of e-commerce, these models are especially widely…

Computation and Language · Computer Science 2024-02-27 Yafei Xiang , Hanyi Yu , Yulu Gong , Shuning Huo , Mengran Zhu

Task-oriented dialogue systems help users accomplish tasks such as booking a movie ticket and ordering food via conversation. Generative models parameterized by a deep neural network are widely used for next turn response generation in such…

Computation and Language · Computer Science 2020-10-13 Prasanna Parthasarathi , Arvind Neelakantan , Sharan Narang

Recently, pre-trained transformer-based models have achieved great success in the task of definition generation (DG). However, previous encoder-decoder models lack effective representation learning to contain full semantic components of the…

Computation and Language · Computer Science 2022-10-04 Hengyuan Zhang , Dawei Li , Shiping Yang , Yanran Li

Two fundamental challenges face generative models in engineering applications: the acquisition of high-performing, diverse datasets, and the adherence to precise constraints in generated designs. We propose a novel approach combining…

Neural and Evolutionary Computing · Computer Science 2024-05-17 Adam Gaier , James Stoddart , Lorenzo Villaggi , Shyam Sudhakaran

The standard definition generation task requires to automatically produce mono-lingual definitions (e.g., English definitions for English words), but ignores that the generated definitions may also consist of unfamiliar words for language…

Computation and Language · Computer Science 2023-06-12 Hengyuan Zhang , Dawei Li , Yanran Li , Chenming Shang , Chufan Shi , Yong Jiang

Developing decision-support systems that complement human performance in classification tasks remains an open challenge. A popular approach, Learning to Defer (LtD), allows a Machine Learning (ML) model to pass difficult cases to a human…

Machine Learning · Computer Science 2025-10-10 Andrea Pugnana , Giovanni De Toni , Cesare Barbera , Roberto Pellungrini , Bruno Lepri , Andrea Passerini

Personalization of natural language generation plays a vital role in a large spectrum of tasks, such as explainable recommendation, review summarization and dialog systems. In these tasks, user and item IDs are important identifiers for…

Information Retrieval · Computer Science 2021-06-09 Lei Li , Yongfeng Zhang , Li Chen

Quality-Diversity is a branch of stochastic optimization that is often applied to problems from the Reinforcement Learning and control domains in order to construct repertoires of well-performing policies/skills that exhibit diversity with…

Machine Learning · Computer Science 2023-08-28 Achkan Salehi , Stephane Doncieux

Search result diversification is a beneficial approach to overcome under-specified queries, such as those that are ambiguous or multi-faceted. Existing approaches often rely on massive query logs and interaction data to generate a variety…

Information Retrieval · Computer Science 2021-08-10 Sean MacAvaney , Craig Macdonald , Roderick Murray-Smith , Iadh Ounis

Pre-trained models for Natural Languages (NL) like BERT and GPT have been recently shown to transfer well to Programming Languages (PL) and largely benefit a broad set of code-related tasks. Despite their success, most current methods…

Computation and Language · Computer Science 2021-09-03 Yue Wang , Weishi Wang , Shafiq Joty , Steven C. H. Hoi