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Current state-of-the-art nonparametric Bayesian text clustering methods model documents through multinomial distribution on bags of words. Although these methods can effectively utilize the word burstiness representation of documents and…

Machine Learning · Computer Science 2018-12-03 Tiehang Duan , Qi Lou , Sargur N. Srihari , Xiaohui Xie

The fragmentation between high-level task semantics and low-level geometric features remains a persistent challenge in robotic manipulation. While vision-language models (VLMs) have shown promise in generating affordance-aware visual…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Zhihao Zhu , Yifan Zheng , Siyu Pan , Yaohui Jin , Yao Mu

Keyword spotting (KWS) is an essential function that enables interaction with ubiquitous smart devices. However, in resource-limited devices, KWS models are often static and can thus not adapt to new scenarios, such as added keywords. To…

CLIP (Contrastive Language-Image Pretraining) has become a popular choice for various downstream tasks. However, recent studies have questioned its ability to represent compositional concepts effectively. These works suggest that CLIP often…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Darina Koishigarina , Arnas Uselis , Seong Joon Oh

In this paper, we propose panoramic annular simultaneous localization and mapping (PA-SLAM), a visual SLAM system based on panoramic annular lens. A hybrid point selection strategy is put forward in the tracking front-end, which ensures…

Robotics · Computer Science 2021-08-04 Hao Chen , Weijian Hu , Kailun Yang , Jian Bai , Kaiwei Wang

Image Retrieval is a fundamental task of obtaining images similar to the query one from a database. A common image retrieval practice is to firstly retrieve candidate images via similarity search using global image features and then re-rank…

Computer Vision and Pattern Recognition · Computer Science 2021-08-12 Min Yang , Dongliang He , Miao Fan , Baorong Shi , Xuetong Xue , Fu Li , Errui Ding , Jizhou Huang

Retrieval-augmented generation (RAG) has emerged as a promising paradigm for improving factual accuracy in large language models (LLMs). We introduce a benchmark designed to evaluate RAG pipelines as a whole, evaluating a pipeline's ability…

Artificial Intelligence · Computer Science 2026-05-25 Samuel Hildebrand , Curtis Taylor , Sean Oesch , James M Ghawaly , Amir Sadovnik , Ryan Shivers , Brandon Schreiber , Kevin Kurian

Mikolov et al. (2013a) observed that continuous bag-of-words (CBOW) word embeddings tend to underperform Skip-gram (SG) embeddings, and this finding has been reported in subsequent works. We find that these observations are driven not by…

Computation and Language · Computer Science 2021-11-10 Ozan İrsoy , Adrian Benton , Karl Stratos

LiDAR-based SLAM system is admittedly more accurate and stable than others, while its loop closure detection is still an open issue. With the development of 3D semantic segmentation for point cloud, semantic information can be obtained…

Robotics · Computer Science 2021-07-02 Lin Li , Xin Kong , Xiangrui Zhao , Wanlong Li , Feng Wen , Hongbo Zhang , Yong Liu

Zero-shot recognition aims to classify an image by selecting the most compatible label description from a set of candidate classes without any task-specific supervision. In fine-grained settings, however, the relevant evidence often lies in…

Computer Vision and Pattern Recognition · Computer Science 2026-05-12 Junyi Hu , Qiji Zhou , Lei Zhang , Yue Zhang

Change detection, or anomaly detection, from street-view images acquired by an autonomous robot at multiple different times, is a major problem in robotic mapping and autonomous driving. Formulation as an image comparison task, which…

Computer Vision and Pattern Recognition · Computer Science 2016-08-09 Tomoya Murase , Kanji Tanaka

Most existing text-to-image person retrieval methods usually assume that the training image-text pairs are perfectly aligned; however, the noisy correspondence(NC) issue (i.e., incorrect or unreliable alignment) exists due to poor image…

Computer Vision and Pattern Recognition · Computer Science 2025-02-11 Runqing Zhang , Xue Zhou

In this paper, we study the design and analysis of a class of efficient algorithms for computing the Gromov-Wasserstein (GW) distance tailored to large-scale graph learning tasks. Armed with the Luo-Tseng error bound…

Machine Learning · Computer Science 2022-12-15 Jiajin Li , Jianheng Tang , Lemin Kong , Huikang Liu , Jia Li , Anthony Man-Cho So , Jose Blanchet

Parameter-efficient fine-tuning (PEFT) of vision-language models (VLMs) excels in various vision tasks thanks to the rich knowledge and generalization ability of VLMs. However, recent studies revealed that such fine-tuned VLMs are…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Nayeong Kim , Seong Joon Oh , Suha Kwak

As Large Language Models (LLMs) evolve into persistent scientific collaborators, context window saturation has emerged as a critical bottleneck. Scientific workflows involving iterative data analysis and hypothesis refinement rapidly…

Artificial Intelligence · Computer Science 2026-05-19 Nikola Milosevic

Retrieval-Augmented Generation (RAG) is a promising approach to mitigate hallucinations in Large Language Models (LLMs) for legal applications, but its reliability is critically dependent on the accuracy of the retrieval step. This is…

Computation and Language · Computer Science 2025-10-09 Markus Reuter , Tobias Lingenberg , Rūta Liepiņa , Francesca Lagioia , Marco Lippi , Giovanni Sartor , Andrea Passerini , Burcu Sayin

Neural implicit representations have emerged as a promising solution for providing dense geometry in Simultaneous Localization and Mapping (SLAM). However, existing methods in this direction fall short in terms of global consistency and low…

Robotics · Computer Science 2024-08-22 Yunxuan Mao , Xuan Yu , Kai Wang , Yue Wang , Rong Xiong , Yiyi Liao

Deriving reliable region-word alignment from image-text pairs is critical to learn object-level vision-language representations for open-vocabulary object detection. Existing methods typically rely on pre-trained or self-trained…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Chuofan Ma , Yi Jiang , Xin Wen , Zehuan Yuan , Xiaojuan Qi

Visual loop closure detection is an important module in visual simultaneous localization and mapping (SLAM), which associates current camera observation with previously visited places. Loop closures correct drifts in trajectory estimation…

Robotics · Computer Science 2024-07-18 Jingwen Yu , Hanjing Ye , Jianhao Jiao , Ping Tan , Hong Zhang

In visual Simultaneous Localization And Mapping (SLAM), detecting loop closures has been an important but difficult task. Currently, most solutions are based on the bag-of-words approach. Yet the possibility of deep neural network…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Zhang Qianhao , Alexander Mai , Joseph Menke , Allen Yang