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We propose theoretical and empirical improvements for two-stage hashing methods. We first provide a theoretical analysis on the quality of the binary codes and show that, under mild assumptions, a residual learning scheme can construct…

Machine Learning · Computer Science 2018-08-07 Fatih Cakir , Kun He , Stan Sclaroff

Large sky surveys are increasingly relying on image subtraction pipelines for real-time (and archival) transient detection. In this process one has to contend with varying PSF, small brightness variations in many sources, as well as…

Instrumentation and Methods for Astrophysics · Physics 2018-04-25 Nima Sedaghat , Ashish Mahabal

Motivated by the success of powerful while expensive techniques to recognize words in a holistic way, object proposals techniques emerge as an alternative to the traditional text detectors. In this paper we introduce a novel object…

Computer Vision and Pattern Recognition · Computer Science 2017-02-02 Lluis Gomez-Bigorda , Dimosthenis Karatzas

We propose a new encoder-decoder approach to learn distributed sentence representations that are applicable to multiple purposes. The model is learned by using a convolutional neural network as an encoder to map an input sentence into a…

Computation and Language · Computer Science 2017-07-28 Zhe Gan , Yunchen Pu , Ricardo Henao , Chunyuan Li , Xiaodong He , Lawrence Carin

In this paper, we propose a novel integrated framework for learning both text detection and recognition. For most of the existing methods, detection and recognition are treated as two isolated tasks and trained separately, since parameters…

Computer Vision and Pattern Recognition · Computer Science 2018-11-22 Wanchen Sui , Qing Zhang , Jun Yang , Wei Chu

In this paper, we propose an approach that exploits object segmentation in order to improve the accuracy of object detection. We frame the problem as inference in a Markov Random Field, in which each detection hypothesis scores object…

Computer Vision and Pattern Recognition · Computer Science 2015-02-17 Yukun Zhu , Raquel Urtasun , Ruslan Salakhutdinov , Sanja Fidler

The interactions between human and objects are important for recognizing object-centric actions. Existing methods usually adopt a two-stage pipeline, where object proposals are first detected using a pretrained detector, and then are fed to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-19 Xunsong Li , Pengzhan Sun , Yangcen Liu , Lixin Duan , Wen Li

Self-supervised pre-training, based on the pretext task of instance discrimination, has fueled the recent advance in label-efficient object detection. However, existing studies focus on pre-training only a feature extractor network to learn…

Computer Vision and Pattern Recognition · Computer Science 2024-02-16 Nanqing Dong , Linus Ericsson , Yongxin Yang , Ales Leonardis , Steven McDonagh

Referring Expression Comprehension (REC) aims to localize the target objects specified by free-form natural language descriptions in images. While state-of-the-art methods achieve impressive performance, they perform a dense perception of…

Computer Vision and Pattern Recognition · Computer Science 2024-06-27 Wei Su , Peihan Miao , Huanzhang Dou , Xi Li

While sophisticated neural-based techniques have been developed in reading comprehension, most approaches model the answer in an independent manner, ignoring its relations with other answer candidates. This problem can be even worse in…

Computation and Language · Computer Science 2018-05-17 Zhen Wang , Jiachen Liu , Xinyan Xiao , Yajuan Lyu , Tian Wu

Automatic airplane detection in aerial imagery has a variety of applications. Two of the significant challenges in this task are variations in the scale and direction of the airplanes. To solve these challenges, we present a…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Mohammad Reza Mohammadi

Perception is the main bottleneck to perform autonomous mobile manipulation tasks, especially in cluttered and unstructured environment. In this paper, we propose a novel two-stage paradigm that leverage both CNN object prior and generative…

Robotics · Computer Science 2018-08-16 Zhiqiang Sui , Zhefan Ye , Odest Chadwicke Jenkins

Context can strongly affect object representations, sometimes leading to undesired biases, particularly when objects appear in out-of-distribution backgrounds at inference. At the same time, many object-centric tasks require to leverage the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Ananthu Aniraj , Cassio F. Dantas , Dino Ienco , Diego Marcos

Significant challenges exist in efficient data analysis of most advanced experimental and observational techniques because the collected signals often include unwanted contributions--such as background and signal distortions--that can…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Yuan Ni , Zhantao Chen , Alexander N. Petsch , Edmund Xu , Cheng Peng , Alexander I. Kolesnikov , Sugata Chowdhury , Arun Bansil , Jana B. Thayer , Joshua J. Turner

Region proposal algorithms play an important role in most state-of-the-art two-stage object detection networks by hypothesizing object locations in the image. Nonetheless, region proposal algorithms are known to be the bottleneck in most…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Ramin Nabati , Hairong Qi

This paper proposes a novel bin picking framework, two-stage grasping, aiming at precise grasping of cluttered small objects. Object density estimation and rough grasping are conducted in the first stage. Fine segmentation, detection,…

Robotics · Computer Science 2023-05-09 Hanwen Cao , Jianshu Zhou , Junda Huang , Yichuan Li , Ng Cheng Meng , Rui Cao , Qi Dou , Yunhui Liu

Nested named entity recognition (nested NER) is a fundamental task in natural language processing. Various span-based methods have been proposed to detect nested entities with span representations. However, span-based methods do not…

Computation and Language · Computer Science 2022-09-07 Shuhui Wu , Yongliang Shen , Zeqi Tan , Weiming Lu

In sequence-to-sequence learning, e.g., natural language generation, the decoder relies on the attention mechanism to efficiently extract information from the encoder. While it is common practice to draw information from only the last…

Computation and Language · Computer Science 2022-08-30 Fenglin Liu , Xuancheng Ren , Guangxiang Zhao , Chenyu You , Xuewei Ma , Xian Wu , Xu Sun

A great proportion of sequence-to-sequence (Seq2Seq) models for Neural Machine Translation (NMT) adopt Recurrent Neural Network (RNN) to generate translation word by word following a sequential order. As the studies of linguistics have…

Computation and Language · Computer Science 2018-06-14 Junyang Lin , Xu Sun , Xuancheng Ren , Shuming Ma , Jinsong Su , Qi Su

Within the field of instance segmentation, most of the state-of-the-art deep learning networks rely nowadays on cascade architectures, where multiple object detectors are trained sequentially, re-sampling the ground truth at each step. This…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Leonardo Rossi , Akbar Karimi , Andrea Prati