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Optimizing data mixtures is essential for unlocking the full potential of large language models (LLMs), yet identifying the optimal composition remains computationally prohibitive due to reliance on heuristic trials or expensive proxy…

机器学习 · 计算机科学 2026-01-27 Jiapeng Wang , Changxin Tian , Kunlong Chen , Ziqi Liu , Jiaxin Mao , Wayne Xin Zhao , Zhiqiang Zhang , Jun Zhou

The use of large pretrained neural networks to create contextualized word embeddings has drastically improved performance on several natural language processing (NLP) tasks. These computationally expensive models have begun to be applied to…

计算机与社会 · 计算机科学 2019-12-03 Benjamin Clavié , Kobi Gal

Reasoning has substantially improved the performance of large language models (LLMs) on complicated tasks. Central to the current reasoning studies, Process Reward Models (PRMs) offer a fine-grained evaluation of intermediate reasoning…

机器学习 · 计算机科学 2025-11-05 Qi Cao , Ruiyi Wang , Ruiyi Zhang , Sai Ashish Somayajula , Pengtao Xie

In multimodal sentiment analysis (MSA), the performance of a model highly depends on the quality of synthesized embeddings. These embeddings are generated from the upstream process called multimodal fusion, which aims to extract and combine…

计算与语言 · 计算机科学 2021-09-17 Wei Han , Hui Chen , Soujanya Poria

Traditional topic models are effective at uncovering latent themes in large text collections. However, due to their reliance on bag-of-words representations, they struggle to capture semantically abstract features. While some neural…

Neural machine translation (NMT) systems require large amounts of high quality in-domain parallel corpora for training. State-of-the-art NMT systems still face challenges related to out-of-vocabulary words and dealing with low-resource…

计算与语言 · 计算机科学 2019-09-18 Jetic Gū , Hassan S. Shavarani , Anoop Sarkar

Due to the success of the pre-trained language model (PLM), existing PLM-based summarization models show their powerful generative capability. However, these models are trained on general-purpose summarization datasets, leading to generated…

计算与语言 · 计算机科学 2023-02-28 Shi Zesheng , Zhou Yucheng

Fine-tuning pre-trained models on targeted datasets enhances task-specific performance but often comes at the expense of generalization. Model merging techniques, which integrate multiple fine-tuned models into a single multi-task model…

机器学习 · 计算机科学 2025-09-11 Zitao Fang , Guodong DU , Shuyang Yu , Yifei Guo , Yiwei Zhang , Yiyao Cao , Jing Li , Ho-Kin Tang , Sim Kuan Goh

Topic models are a popular tool for understanding text collections, but their evaluation has been a point of contention. Automated evaluation metrics such as coherence are often used, however, their validity has been questioned for neural…

计算与语言 · 计算机科学 2024-02-21 Zongxia Li , Andrew Mao , Daniel Stephens , Pranav Goel , Emily Walpole , Alden Dima , Juan Fung , Jordan Boyd-Graber

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…

计算与语言 · 计算机科学 2023-03-31 Anton Thielmann , Quentin Seifert , Arik Reuter , Elisabeth Bergherr , Benjamin Säfken

Open-domain long-term memory conversation can establish long-term intimacy with humans, and the key is the ability to understand and memorize long-term dialogue history information. Existing works integrate multiple models for modelling…

计算与语言 · 计算机科学 2023-06-21 Kang Zhao , Wei Liu , Jian Luan , Minglei Gao , Li Qian , Hanlin Teng , Bin Wang

Since the emergence of the worldwide pandemic of COVID-19, relevant research has been published at a dazzling pace, which yields an abundant amount of big data in biomedical literature. Due to the high volum of relevant literature, it is…

信息检索 · 计算机科学 2022-12-09 Yeseul Jeon , Dongjun Chung , Jina Park , Ick Hoon Jin

Large Language Models (LLMs) have sparked substantial interest and debate concerning their potential emergence of Theory of Mind (ToM) ability. Theory of mind evaluations currently focuses on testing models using machine-generated data or…

计算与语言 · 计算机科学 2024-10-08 Chunkit Chan , Cheng Jiayang , Yauwai Yim , Zheye Deng , Wei Fan , Haoran Li , Xin Liu , Hongming Zhang , Weiqi Wang , Yangqiu Song

Topic Modeling refers to the problem of discovering the main topics that have occurred in corpora of textual data, with solutions finding crucial applications in numerous fields. In this work, inspired by the recent advancements in the…

计算与语言 · 计算机科学 2021-08-23 Shayan Fazeli , Majid Sarrafzadeh

In this work, we present an information-theoretic framework that formulates cross-lingual language model pre-training as maximizing mutual information between multilingual-multi-granularity texts. The unified view helps us to better…

计算与语言 · 计算机科学 2021-04-08 Zewen Chi , Li Dong , Furu Wei , Nan Yang , Saksham Singhal , Wenhui Wang , Xia Song , Xian-Ling Mao , Heyan Huang , Ming Zhou

Transformer-based Neural Language Models achieve state-of-the-art performance on various natural language processing tasks. However, an open question is the extent to which these models rely on word-order/syntactic or word…

计算与语言 · 计算机科学 2024-03-05 Vasudevan Nedumpozhimana , John D. Kelleher

Structured neuron encapsulation introduces a modular framework that enables more effective aggregation and specialization of information within deep learning architectures. A model modified through this framework demonstrated improved…

In neural dialogue modeling, a neural network is trained to predict the next utterance, and at inference time, an approximate decoding algorithm is used to generate next utterances given previous ones. While this autoregressive framework…

计算与语言 · 计算机科学 2019-11-13 Ilia Kulikov , Jason Lee , Kyunghyun Cho

Neural language models (LMs) based on recurrent neural networks (RNN) are some of the most successful word and character-level LMs. Why do they work so well, in particular better than linear neural LMs? Possible explanations are that RNNs…

机器学习 · 统计学 2013-06-21 Marius Pachitariu , Maneesh Sahani

Conversation generation as a challenging task in Natural Language Generation (NLG) has been increasingly attracting attention over the last years. A number of recent works adopted sequence-to-sequence structures along with external…

计算与语言 · 计算机科学 2021-08-23 Changzhen Ji , Yating Zhang , Xiaozhong Liu , Adam Jatowt , Changlong Sun , Conghui Zhu , Tiejun Zhao