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Deformable Parts Models and Convolutional Networks each have achieved notable performance in object detection. Yet these two approaches find their strengths in complementary areas: DPMs are well-versed in object composition, modeling…

计算机视觉与模式识别 · 计算机科学 2014-11-20 Li Wan , David Eigen , Rob Fergus

Semantic segmentation is a core computer vision problem, but the high costs of data annotation have hindered its wide application. Weakly-Supervised Semantic Segmentation (WSSS) offers a cost-efficient workaround to extensive labeling in…

计算机视觉与模式识别 · 计算机科学 2024-05-13 Elham Ravanbakhsh , Cheng Niu , Yongqing Liang , J. Ramanujam , Xin Li

Multi-modal large language models (MLLMs) achieve strong visual-language reasoning but suffer from high inference cost due to redundant visual tokens. Recent work explores visual token pruning to accelerate inference, while existing pruning…

计算机视觉与模式识别 · 计算机科学 2026-04-02 Xiwen Chen , Wenhui Zhu , Gen Li , Xuanzhao Dong , Yujian Xiong , Hao Wang , Peijie Qiu , Qingquan Song , Zhipeng Wang , Shao Tang , Yalin Wang , Abolfazl Razi

For brain tumour segmentation, deep learning models can achieve human expert-level performance given a large amount of data and pixel-level annotations. However, the expensive exercise of obtaining pixel-level annotations for large amounts…

计算机视觉与模式识别 · 计算机科学 2023-10-11 Xiao Liu , Antanas Kascenas , Hannah Watson , Sotirios A. Tsaftaris , Alison Q. O'Neil

Topic modeling is a powerful technique for uncovering hidden themes within a collection of documents. However, the effectiveness of traditional topic models often relies on sufficient word co-occurrence, which is lacking in short texts.…

计算与语言 · 计算机科学 2024-10-22 Pritom Saha Akash , Kevin Chen-Chuan Chang

To build an interpretable neural text classifier, most of the prior work has focused on designing inherently interpretable models or finding faithful explanations. A new line of work on improving model interpretability has just started, and…

计算与语言 · 计算机科学 2020-11-20 Hanjie Chen , Yangfeng Ji

Unsupervised neural machine translation (NMT) is a recently proposed approach for machine translation which aims to train the model without using any labeled data. The models proposed for unsupervised NMT often use only one shared encoder…

计算与语言 · 计算机科学 2018-04-25 Zhen Yang , Wei Chen , Feng Wang , Bo Xu

We utilize a recently developed topic modeling method called SeNMFk, extending the standard Non-negative Matrix Factorization (NMF) methods by incorporating the semantic structure of the text, and adding a robust system for determining the…

数字图书馆 · 计算机科学 2022-01-04 Valentin Stanev , Erik Skau , Ichiro Takeuchi , Boian S. Alexandrov

Topic modeling is a fundamental task in natural language processing, allowing the discovery of latent thematic structures in text corpora. While Large Language Models (LLMs) have demonstrated promising capabilities in topic discovery, their…

计算与语言 · 计算机科学 2025-06-03 Xiaohao Yang , He Zhao , Weijie Xu , Yuanyuan Qi , Jueqing Lu , Dinh Phung , Lan Du

Distributed word embeddings have yielded state-of-the-art performance in many NLP tasks, mainly due to their success in capturing useful semantic information. These representations assign only a single vector to each word whereas a large…

机器学习 · 计算机科学 2020-02-04 Shobhit Jain , Sravan Babu Bodapati , Ramesh Nallapati , Anima Anandkumar

This work focuses on combining nonparametric topic models with Auto-Encoding Variational Bayes (AEVB). Specifically, we first propose iTM-VAE, where the topics are treated as trainable parameters and the document-specific topic proportions…

计算与语言 · 计算机科学 2018-06-19 Xuefei Ning , Yin Zheng , Zhuxi Jiang , Yu Wang , Huazhong Yang , Junzhou Huang

In this paper, we consider the problem of open-vocabulary semantic segmentation (OVS), which aims to segment objects of arbitrary classes instead of pre-defined, closed-set categories. The main contributions are as follows: First, we…

计算机视觉与模式识别 · 计算机科学 2023-03-06 Jilan Xu , Junlin Hou , Yuejie Zhang , Rui Feng , Yi Wang , Yu Qiao , Weidi Xie

This paper presents SimVTP: a Simple Video-Text Pretraining framework via masked autoencoders. We randomly mask out the spatial-temporal tubes of input video and the word tokens of input text and then feed them into a unified autencoder to…

计算机视觉与模式识别 · 计算机科学 2022-12-08 Yue Ma , Tianyu Yang , Yin Shan , Xiu Li

Recent research in vision-language models (VLMs) has centered around the possibility of equipping them with implicit long-form chain-of-thought reasoning -- akin to the success observed in language models -- via distillation and…

计算机视觉与模式识别 · 计算机科学 2025-06-11 David Acuna , Ximing Lu , Jaehun Jung , Hyunwoo Kim , Amlan Kar , Sanja Fidler , Yejin Choi

In this paper we address speaker-independent multichannel speech enhancement in unknown noisy environments. Our work is based on a well-established multichannel local Gaussian modeling framework. We propose to use a neural network for…

声音 · 计算机科学 2019-05-01 Simon Leglaive , Laurent Girin , Radu Horaud

Large pre-trained vision-language models (VLMs), such as CLIP, have shown unprecedented zero-shot performance across a wide range of tasks. Nevertheless, these models may be unreliable under distributional shifts, as their performance is…

计算机视觉与模式识别 · 计算机科学 2026-01-05 Shambhavi Mishra , Julio Silva-Rodriguez , Ismail Ben Ayed , Marco Pedersoli , Jose Dolz

Unsupervised domain adaptation methods have been widely explored to bridge domain gaps. However, in real-world remote-sensing scenarios, privacy and transmission constraints often preclude access to source domain data, which limits their…

计算机视觉与模式识别 · 计算机科学 2025-08-27 Jianhong Han , Yupei Wang , Liang Chen

The emerging neural topic models make topic modeling more easily adaptable and extendable in unsupervised text mining. However, the existing neural topic models is difficult to retain representative information of the documents within the…

计算与语言 · 计算机科学 2022-03-15 Kang Xu , Xiaoqiu Lu , Yuan-fang Li , Tongtong Wu , Guilin Qi , Ning Ye , Dong Wang , Zheng Zhou

The quest for comprehensive generative models of intonation that link linguistic and paralinguistic functions to prosodic forms has been a longstanding challenge of speech communication research. Traditional intonation models have given way…

音频与语音处理 · 电气工程与系统科学 2019-03-19 Branislav Gerazov , Gérard Bailly , Omar Mohammed , Yi Xu , Philip N. Garner

Non-negative matrix factorization (NMF) based topic modeling is widely used in natural language processing (NLP) to uncover hidden topics of short text documents. Usually, training a high-quality topic model requires large amount of textual…

计算与语言 · 计算机科学 2022-05-27 Shijing Si , Jianzong Wang , Ruiyi Zhang , Qinliang Su , Jing Xiao