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While machine-generated texts (MGTs) offer great convenience, they also pose risks such as disinformation and phishing, highlighting the need for reliable detection. Metric-based methods, which extract statistically distinguishable features…

计算与语言 · 计算机科学 2026-02-10 Chenwang Wu , Yiu-ming Cheung , Shuhai Zhang , Bo Han , Defu Lian

For visual content generation, discrepancies between user intentions and the generated content have been a longstanding problem. This discrepancy arises from two main factors. First, user intentions are inherently complex, with subtle…

计算机视觉与模式识别 · 计算机科学 2024-05-22 Yi Cheng , Ziwei Xu , Dongyun Lin , Harry Cheng , Yongkang Wong , Ying Sun , Joo Hwee Lim , Mohan Kankanhalli

Verifiable generation requires large language models (LLMs) to cite source documents supporting their outputs, thereby improve output transparency and trustworthiness. Yet, previous work mainly targets the generation of sentence-level…

计算与语言 · 计算机科学 2024-06-11 Shuyang Cao , Lu Wang

Existing knowledge-grounded dialogue systems typically use finetuned versions of a pretrained language model (LM) and large-scale knowledge bases. These models typically fail to generalize on topics outside of the knowledge base, and…

计算与语言 · 计算机科学 2022-03-17 Zihan Liu , Mostofa Patwary , Ryan Prenger , Shrimai Prabhumoye , Wei Ping , Mohammad Shoeybi , Bryan Catanzaro

The GPT-4 technical report suggests that downstream performance can be predicted from pre-training signals, but offers little methodological detail on how to quantify this. This work address this gap by modeling knowledge retention, the…

Commit message generation (CMG) is a challenging task in automated software engineering that aims to generate natural language descriptions of code changes for commits. Previous methods all start from the modified code snippets, outputting…

软件工程 · 计算机科学 2023-09-29 Liran Wang , Xunzhu Tang , Yichen He , Changyu Ren , Shuhua Shi , Chaoran Yan , Zhoujun Li

Large Language Models (LLMs), when used for conditional text generation, often produce hallucinations, i.e., information that is unfaithful or not grounded in the input context. This issue arises in typical conditional text generation…

As dialogue systems and chatbots increasingly integrate into everyday interactions, the need for efficient and accurate evaluation methods becomes paramount. This study explores the comparative performance of human and AI assessments across…

计算与语言 · 计算机科学 2024-09-11 Ike Ebubechukwu , Johane Takeuchi , Antonello Ceravola , Frank Joublin

A new gradient-based particle sampling method, MPM-ParVI, based on material point method (MPM), is proposed for variational inference. MPM-ParVI simulates the deformation of a deformable body (e.g. a solid or fluid) under external effects…

人工智能 · 计算机科学 2024-07-31 Yongchao Huang

We introduce a novel Mutual Information (MI) estimator that fundamentally reframes the discriminative approach. Instead of training a classifier to discriminate between joint and marginal distributions, we learn a normalizing flow that…

机器学习 · 计算机科学 2026-02-10 Ivan Butakov , Alexander Semenenko , Valeriya Kirova , Alexey Frolov , Ivan Oseledets

Commit messages are essential in software development as they serve to document and explain code changes. Yet, their quality often falls short in practice, with studies showing significant proportions of empty or inadequate messages. While…

软件工程 · 计算机科学 2025-07-16 Qunhong Zeng , Yuxia Zhang , Zexiong Ma , Bo Jiang , Ningyuan Sun , Klaas-Jan Stol , Xingyu Mou , Hui Liu

Medical dialogue generation is an important yet challenging task. Most previous works rely on the attention mechanism and large-scale pretrained language models. However, these methods often fail to acquire pivotal information from the long…

人工智能 · 计算机科学 2022-06-20 Yu Zhao , Yunxin Li , Yuxiang Wu , Baotian Hu , Qingcai Chen , Xiaolong Wang , Yuxin Ding , Min Zhang

Rectified Flow (RF) models trained with a Flow matching framework have achieved state-of-the-art performance on Text-to-Image (T2I) conditional generation. Yet, multiple benchmarks show that synthetic images can still suffer from poor…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Chao Wang , Giulio Franzese , Alessandro Finamore , Pietro Michiardi

Recent large language models (LLMs) have shown remarkable performance in aligning generated text with user intentions across various tasks. When it comes to long-form text generation, there has been a growing interest in generation from a…

计算与语言 · 计算机科学 2024-04-04 Yinhong Liu , Yixuan Su , Ehsan Shareghi , Nigel Collier

Content is created for a well-defined purpose, often described by a metric or signal represented in the form of structured information. The relationship between the goal (metrics) of target content and the content itself is non-trivial.…

计算与语言 · 计算机科学 2022-03-29 Navita Goyal , Roodram Paneri , Ayush Agarwal , Udit Kalani , Abhilasha Sancheti , Niyati Chhaya

Large Language Models (LLMs) often struggle with maintaining coherent multi-step reasoning traces, particularly in tasks that require a structured logical flow. This work introduces a quantum-inspired approach to address the challenge by…

人工智能 · 计算机科学 2025-09-25 Venkat Margapuri , Garik Kazanjian , Naren Kosaraju

Generating personalized responses is one of the major challenges in natural human-robot interaction. Current researches in this field mainly focus on generating responses consistent with the robot's pre-assigned persona, while ignoring the…

计算与语言 · 计算机科学 2025-03-26 Bin Li , Hanjun Deng

The emergence of large language models (LLMs) has revolutionized the capabilities of text comprehension and generation. Multi-modal generation attracts great attention from both the industry and academia, but there is little work on…

信息检索 · 计算机科学 2024-04-16 Xiaoteng Shen , Rui Zhang , Xiaoyan Zhao , Jieming Zhu , Xi Xiao

Responding with knowledge has been recognized as an important capability for an intelligent conversational agent. Yet knowledge-grounded dialogues, as training data for learning such a response generation model, are difficult to obtain.…

计算与语言 · 计算机科学 2020-02-25 Xueliang Zhao , Wei Wu , Chongyang Tao , Can Xu , Dongyan Zhao , Rui Yan

Generating stylized responses is essential to build intelligent and engaging dialogue systems. However, this task is far from well-explored due to the difficulties of rendering a particular style in coherent responses, especially when the…

计算与语言 · 计算机科学 2020-12-17 Yinhe Zheng , Zikai Chen , Rongsheng Zhang , Shilei Huang , Xiaoxi Mao , Minlie Huang