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GUI grounding aims to align natural language instructions with precise regions in complex user interfaces. Advanced multimodal large language models show strong ability in visual GUI grounding but still struggle with small or visually…

人工智能 · 计算机科学 2025-12-02 Aiden Yiliu Li , Bizhi Yu , Daoan Lei , Tianhe Ren , Shilong Liu

Large language models (LLMs) have demonstrated remarkable capabilities in tasks requiring reasoning and multi-step problem-solving through the use of chain-of-thought (CoT) prompting. However, generating the full CoT process results in…

计算与语言 · 计算机科学 2024-09-16 Tianqiao Liu , Zui Chen , Zitao Liu , Mi Tian , Weiqi Luo

Captioning models are typically trained using the cross-entropy loss. However, their performance is evaluated on other metrics designed to better correlate with human assessments. Recently, it has been shown that reinforcement learning (RL)…

计算机视觉与模式识别 · 计算机科学 2017-12-29 Sang Phan , Gustav Eje Henter , Yusuke Miyao , Shin'ichi Satoh

In this paper we present VideoSET, a method for Video Summary Evaluation through Text that can evaluate how well a video summary is able to retain the semantic information contained in its original video. We observe that semantics is most…

计算机视觉与模式识别 · 计算机科学 2014-06-24 Serena Yeung , Alireza Fathi , Li Fei-Fei

Large language models demonstrate limited capability in proficiency-controlled sentence simplification, particularly when simplifying across large readability levels. We propose a framework that decomposes complex simplifications into…

计算与语言 · 计算机科学 2026-02-10 Jingshen Zhang , Xin Ying Qiu , Lifang Lu , Zhuhua Huang , Yutao Hu , Yuechang Wu , JunYu Lu

This paper presents enhancements to the SAM2 framework for video object tracking task, addressing challenges such as occlusions, background clutter, and target reappearance. We introduce a hierarchical motion estimation strategy, combining…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Ruixiang Chen , Guolei Sun , Yawei Li , Jie Qin , Luca Benini

We report on novel investigations into training models that make sentences concise. We define the task and show that it is different from related tasks such as summarization and simplification. For evaluation, we release two test sets,…

计算与语言 · 计算机科学 2022-11-09 Felix Stahlberg , Aashish Kumar , Chris Alberti , Shankar Kumar

Temporal sentence grounding aims to detect event timestamps described by the natural language query from given untrimmed videos. The existing fully-supervised setting achieves great results but requires expensive annotation costs; while the…

计算机视觉与模式识别 · 计算机科学 2025-02-19 Haicheng Wang , Chen Ju , Weixiong Lin , Chaofan Ma , Shuai Xiao , Ya Zhang , Yanfeng Wang

In this paper, we focus on video-to-text summarization and investigate how to best utilize multimodal information for summarizing long inputs (e.g., an hour-long TV show) into long outputs (e.g., a multi-sentence summary). We extend…

计算与语言 · 计算机科学 2022-10-11 Pinelopi Papalampidi , Mirella Lapata

We propose LocFormer, a Transformer-based model for video grounding which operates at a constant memory footprint regardless of the video length, i.e. number of frames. LocFormer is designed for tasks where it is necessary to process the…

计算机视觉与模式识别 · 计算机科学 2021-12-21 Cristian Rodriguez-Opazo , Edison Marrese-Taylor , Basura Fernando , Hiroya Takamura , Qi Wu

Large Language Models (LLMs) have recently achieved remarkable progress by leveraging Reinforcement Learning and extended Chain-of-Thought (CoT) techniques. However, the challenge of performing efficient language reasoning--especially…

Speech-to-text translation (ST), which directly translates the source language speech to the target language text, has attracted intensive attention recently. However, the combination of speech recognition and machine translation in a…

计算与语言 · 计算机科学 2022-04-18 Qianqian Dong , Mingxuan Wang , Hao Zhou , Shuang Xu , Bo Xu , Lei Li

Subtitles are essential for video accessibility and audience engagement. Modern Automatic Speech Recognition (ASR) systems, built upon Encoder-Decoder neural network architectures and trained on massive amounts of data, have progressively…

计算与语言 · 计算机科学 2025-12-23 Alessandro Lucca , Francesco Pierri

Video-aided grammar induction aims to leverage video information for finding more accurate syntactic grammars for accompanying text. While previous work focuses on building systems for inducing grammars on text that are well-aligned with…

计算与语言 · 计算机科学 2022-10-25 Songyang Zhang , Linfeng Song , Lifeng Jin , Haitao Mi , Kun Xu , Dong Yu , Jiebo Luo

A key solution to temporal sentence grounding (TSG) exists in how to learn effective alignment between vision and language features extracted from an untrimmed video and a sentence description. Existing methods mainly leverage vanilla soft…

计算机视觉与模式识别 · 计算机科学 2021-09-15 Daizong Liu , Xiaoye Qu , Pan Zhou

Tool-integrated Text-to-SQL parsing has emerged as a promising paradigm, framing SQL generation as a sequential decision-making process interleaved with tool execution. However, existing reinforcement learning approaches mainly rely on…

计算与语言 · 计算机科学 2026-05-08 Yaxun Dai , Baolin Sun , Junying Wang , Pengfei Wang , Yingqi Gao , Xuemei Dong , Mengdie Chu , Xiang Qi , Pingfu Chao

Neural text-to-speech (TTS) models can synthesize natural human speech when trained on large amounts of transcribed speech. However, collecting such large-scale transcribed data is expensive. This paper proposes an unsupervised pre-training…

音频与语音处理 · 电气工程与系统科学 2023-03-29 Seongyeon Park , Myungseo Song , Bohyung Kim , Tae-Hyun Oh

The objective of this study is to generate high-quality speech from silent talking face videos, a task also known as video-to-speech synthesis. A significant challenge in video-to-speech synthesis lies in the substantial modality gap…

音频与语音处理 · 电气工程与系统科学 2025-03-24 Ji-Hoon Kim , Jeongsoo Choi , Jaehun Kim , Chaeyoung Jung , Joon Son Chung

Large language models (LLMs) are commonly trained on datasets consisting of fixed-length token sequences. These datasets are created by randomly concatenating documents of various lengths and then chunking them into sequences of a…

Text simplification (TS) rephrases long sentences into simplified variants while preserving inherent semantics. Traditional sequence-to-sequence models heavily rely on the quantity and quality of parallel sentences, which limits their…

计算与语言 · 计算机科学 2020-05-01 Yanbin Zhao , Lu Chen , Zhi Chen , Kai Yu