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Online handwritten Chinese text recognition (OHCTR) is a challenging problem as it involves a large-scale character set, ambiguous segmentation, and variable-length input sequences. In this paper, we exploit the outstanding capability of…

Computer Vision and Pattern Recognition · Computer Science 2017-05-26 Zecheng Xie , Zenghui Sun , Lianwen Jin , Hao Ni , Terry Lyons

Trajectories that capture object movement have numerous applications, in which similarity computation between trajectories often plays a key role. Traditionally, the similarity between two trajectories is quantified by means of heuristic…

Databases · Computer Science 2024-06-13 Yanchuan Chang , Egemen Tanin , Gao Cong , Christian S. Jensen , Jianzhong Qi

Graph Edit Distance (GED) is a fundamental, albeit NP-hard, metric for structural graph similarity. Recent neural graph matching architectures approximate GED by first encoding graphs with a Graph Neural Network (GNN) and then applying…

Machine Learning · Computer Science 2026-05-08 Jyotirmaya Shivottam , Subhankar Mishra

Three-dimensional feature extraction is a critical component of autonomous driving systems, where perception tasks such as 3D object detection, bird's-eye-view (BEV) semantic segmentation, and occupancy prediction serve as important…

Computer Vision and Pattern Recognition · Computer Science 2025-11-11 Zhongyu Xia , Zhiwei Lin , Yongtao Wang , Ming-Hsuan Yang

The rapid development of large language models and AI agents has triggered a paradigm shift in academic literature retrieval, putting forward new demands for fine-grained, time-aware, and programmable retrieval. Existing graph-vector fusion…

Information Retrieval · Computer Science 2026-04-21 Xing Wei , Yang Yu

Trajectory representation learning on a network enhances our understanding of vehicular traffic patterns and benefits numerous downstream applications. Existing approaches using classic machine learning or deep learning embed trajectories…

Machine Learning · Computer Science 2023-12-14 Yuanbo Tang , Zhiyuan Peng , Yang Li

Effective medical text retrieval requires both high accuracy and low latency. While LLM-based embedding models possess powerful retrieval capabilities, their prohibitive latency and high computational cost limit their application in…

Information Retrieval · Computer Science 2026-04-21 Angqing Jiang , Jianlyu Chen , Zhe Fang , Yongcan Wang , Xinpeng Li , Keyu Ding , Defu Lian

Handwriting recognition is a challenging and critical problem in the fields of pattern recognition and machine learning, with applications spanning a wide range of domains. In this paper, we focus on the specific issue of recognizing…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Saleh Momeni , Bagher BabaAli

Process consistency checking (PCC), an interdiscipline of natural language processing (NLP) and business process management (BPM), aims to quantify the degree of (in)consistencies between graphical and textual descriptions of a process.…

Computation and Language · Computer Science 2019-05-17 Chen Qian , Lijie Wen , Akhil Kumar

Recent researches introduced fast, compact and efficient convolutional neural networks (CNNs) for offline handwritten Chinese character recognition (HCCR). However, many of them did not address the problem of network interpretability. We…

Computer Vision and Pattern Recognition · Computer Science 2020-06-12 Pavlo Melnyk , Zhiqiang You , Keqin Li

GPS trajectories are the essential foundations for many trajectory-based applications, such as travel time estimation, traffic prediction and trajectory similarity measurement. Most applications require a large amount of high sample rate…

Machine Learning · Computer Science 2022-11-29 Yuqi Chen , Hanyuan Zhang , Weiwei Sun , Baihua Zheng

Accurate Defect detection is crucial for ensuring the trustworthiness of intelligent railway systems. Current approaches rely on single deep-learning models, like CNNs, which employ a large amount of data to capture underlying patterns.…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Rahatara Ferdousi , Fedwa Laamarti , Chunsheng Yang , Abdulmotaleb El Saddik

Human demonstrations of trajectories are an important source of training data for many machine learning problems. However, the difficulty of collecting human demonstration data for complex tasks makes learning efficient representations of…

Machine Learning · Computer Science 2024-06-10 Travers Rhodes , Daniel D. Lee

This paper proposes a pedestrian detection and re-identification (re-id) integration net (I-Net) in an end-to-end learning framework. The I-Net is used in real-world video surveillance scenarios, where the target person needs to be searched…

Computer Vision and Pattern Recognition · Computer Science 2018-04-03 Zhenwei He , Lei Zhang , Wei Jia

Event Detection (ED) aims to recognize instances of specified types of event triggers in text. Different from English ED, Chinese ED suffers from the problem of word-trigger mismatch due to the uncertain word boundaries. Existing approaches…

Computation and Language · Computer Science 2023-01-05 Shiyao Cui , Bowen Yu , Xin Cong , Tingwen Liu , Quangang Li , Jinqiao Shi

Separating overlapped nuclei is a major challenge in histopathology image analysis. Recently published approaches have achieved promising overall performance on nuclei segmentation; however, their performance on separating overlapped nuclei…

Image and Video Processing · Electrical Eng. & Systems 2021-10-01 Haotian Wang , Aleksandar Vakanski , Changfa Shi , Min Xian

The encoder-decoder network is widely used to learn deep feature representations from pixel-wise annotations in biomedical image analysis. Under this structure, the performance profoundly relies on the effectiveness of feature extraction…

Image and Video Processing · Electrical Eng. & Systems 2021-01-12 Weinan Song , Yuan Liang , Jiawei Yang , Kun Wang , Lei He

Most existing cross-modal retrieval methods employ two-stream encoders with different architectures for images and texts, \textit{e.g.}, CNN for images and RNN/Transformer for texts. Such discrepancy in architectures may induce different…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Yi Bin , Haoxuan Li , Yahui Xu , Xing Xu , Yang Yang , Heng Tao Shen

We evaluate the performance of various text embedding models and pipeline configurations for AI-driven search systems. We compare sentence-transformer and generative embedding models (e.g., All-MPNet, BGE, GTE, and Qwen) at different…

Information Retrieval · Computer Science 2025-12-01 Philip Zhong , Kent Chen , Don Wang

Convolutional Recurrent Neural Networks (CRNNs) excel at scene text recognition. Unfortunately, they are likely to suffer from vanishing/exploding gradient problems when processing long text images, which are commonly found in scanned…

Computer Vision and Pattern Recognition · Computer Science 2020-01-23 Duc Nguyen , Nhan Tran , Hung Le