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相关论文: Human-Centric Topic Modeling with Goal-Prompted Co…

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Traditional neural topic models are typically optimized by reconstructing the document's Bag-of-Words (BoW) representations, overlooking contextual information and struggling with data sparsity. In this work, we propose a novel approach to…

计算与语言 · 计算机科学 2026-02-23 Raymond Li , Amirhossein Abaskohi , Chuyuan Li , Gabriel Murray , Giuseppe Carenini

Unlike well-structured text, such as news reports and encyclopedia articles, dialogue content often comes from two or more interlocutors, exchanging information with each other. In such a scenario, the topic of a conversation can vary upon…

计算与语言 · 计算机科学 2021-09-13 Junpeng Liu , Yanyan Zou , Hainan Zhang , Hongshen Chen , Zhuoye Ding , Caixia Yuan , Xiaojie Wang

Prompt-based learning's efficacy across numerous natural language processing tasks has led to its integration into dense passage retrieval. Prior research has mainly focused on enhancing the semantic understanding of pre-trained language…

计算与语言 · 计算机科学 2023-10-11 Qingfa Xiao , Shuangyin Li , Lei Chen

Topic modelling was mostly dominated by Bayesian graphical models during the last decade. With the rise of transformers in Natural Language Processing, however, several successful models that rely on straightforward clustering approaches in…

机器学习 · 计算机科学 2024-03-07 Arik Reuter , Anton Thielmann , Christoph Weisser , Benjamin Säfken , Thomas Kneib

Text matching is a fundamental technique in both information retrieval and natural language processing. Text matching tasks share the same paradigm that determines the relationship between two given texts. The relationships vary from task…

信息检索 · 计算机科学 2022-08-23 Shicheng Xu , Liang Pang , Huawei Shen , Xueqi Cheng

Topic models, such as latent Dirichlet allocation (LDA), can be useful tools for the statistical analysis of document collections and other discrete data. The LDA model assumes that the words of each document arise from a mixture of topics,…

应用统计 · 统计学 2009-09-29 David M. Blei , John D. Lafferty

Multimodal Large Language Models (MLLMs) such as GPT-4V and Gemini Pro face challenges in achieving human-level perception in Visual Question Answering (VQA), particularly in object-oriented perception tasks which demand fine-grained…

计算与语言 · 计算机科学 2024-04-09 Songtao Jiang , Yan Zhang , Chenyi Zhou , Yeying Jin , Yang Feng , Jian Wu , Zuozhu Liu

Despite the success of contrastive learning (CL) in vision and language, its theoretical foundations and mechanisms for building representations remain poorly understood. In this work, we build connections between noise contrastive…

机器学习 · 计算机科学 2025-02-28 Zihao Chen , Chi-Heng Lin , Ran Liu , Jingyun Xiao , Eva L Dyer

To hold a true conversation, an intelligent agent should be able to occasionally take initiative and recommend the next natural conversation topic. This is a challenging task. A topic suggested by the agent should be relevant to the person,…

计算与语言 · 计算机科学 2020-05-29 Ali Ahmadvand , Harshita Sahijwani , Eugene Agichtein

Recent advancements in reasoning abilities of Large Language Models (LLM) has promoted their usage in problems that require high-level planning for robots and artificial agents. However, current techniques that utilize LLMs for such…

人工智能 · 计算机科学 2023-10-17 Yash Shukla , Wenchang Gao , Vasanth Sarathy , Alvaro Velasquez , Robert Wright , Jivko Sinapov

Probabilistic topic models are a powerful tool for extracting latent themes from large text datasets. In many text datasets, we also observe per-document covariates (e.g., source, style, political affiliation) that act as environments that…

计算与语言 · 计算机科学 2024-11-04 Dominic Sobhani , Amir Feder , David Blei

Multimodal intent recognition aims to leverage diverse modalities such as expressions, body movements and tone of speech to comprehend user's intent, constituting a critical task for understanding human language and behavior in real-world…

多媒体 · 计算机科学 2024-06-07 Qianrui Zhou , Hua Xu , Hao Li , Hanlei Zhang , Xiaohan Zhang , Yifan Wang , Kai Gao

Preference learning in Large Language Models (LLMs) has advanced significantly, yet existing methods remain limited by modest performance gains, high computational costs, hyperparameter sensitivity, and insufficient modeling of global…

计算与语言 · 计算机科学 2026-04-03 Liang Zhu , Yuelin Bai , Xiankun Ren , Jiaxi Yang , Lei Zhang , Feiteng Fang , Hamid Alinejad-Rokny , Minghuan Tan , Min Yang

In the retrieval-based multi-turn dialogue modeling, it remains a challenge to select the most appropriate response according to extracting salient features in context utterances. As a conversation goes on, topic shift at discourse-level…

计算与语言 · 计算机科学 2020-12-18 Yi Xu , Hai Zhao , Zhuosheng Zhang

Optimal Transport (OT) is being widely used in various fields such as machine learning and computer vision, as it is a powerful tool for measuring the similarity between probability distributions and histograms. In previous studies, OT has…

机器学习 · 统计学 2020-06-17 Yasunori Akagi , Yusuke Tanaka , Tomoharu Iwata , Takeshi Kurashima , Hiroyuki Toda

Recent advances in deep learning, such as powerful generative models and joint text-image embeddings, have provided the computational creativity community with new tools, opening new perspectives for artistic pursuits. Text-to-image…

计算机视觉与模式识别 · 计算机科学 2022-04-20 Yingtao Tian , Marco Cuturi , David Ha

We introduce HTLM, a hyper-text language model trained on a large-scale web crawl. Modeling hyper-text has a number of advantages: (1) it is easily gathered at scale, (2) it provides rich document-level and end-task-adjacent supervision…

计算与语言 · 计算机科学 2021-07-16 Armen Aghajanyan , Dmytro Okhonko , Mike Lewis , Mandar Joshi , Hu Xu , Gargi Ghosh , Luke Zettlemoyer

Recently, Neural Topic Models (NTM), inspired by variational autoencoders, have attracted a lot of research interest; however, these methods have limited applications in the real world due to the challenge of incorporating human knowledge.…

机器学习 · 计算机科学 2023-10-24 Weijie Xu , Xiaoyu Jiang , Srinivasan H. Sengamedu , Francis Iannacci , Jinjin Zhao

Large Language Models (LLMs) excel at extracting common patterns from large-scale corpora, yet they struggle with rare, low-resource, or previously unseen scenarios-such as niche hardware deployment issues or irregular IoT device…

计算与语言 · 计算机科学 2025-12-23 Hong Su

Entity alignment aims to discover unique equivalent entity pairs with the same meaning across different knowledge graphs (KGs). Existing models have focused on projecting KGs into a latent embedding space so that inherent semantics between…

机器学习 · 计算机科学 2025-06-03 Qijie Ding , Daokun Zhang , Jie Yin