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This study evaluates road surface object detection tasks using four Mask R-CNN models as a pre-study of surface deterioration detection of stone-made archaeological objects. The models were pre-trained and fine-tuned by COCO datasets and…

计算机视觉与模式识别 · 计算机科学 2020-10-23 Haruhiro Fujita , Masatoshi Itagaki , Kenta Ichikawa , Yew Kwang Hooi , Kazutaka Kawano , Ryo Yamamoto

This paper proposes a multi-spectral random forest classifier with suitable feature selection and masking for tree cover estimation in urban areas. The key feature of the proposed classifier is filtering out the built-up region using…

计算机视觉与模式识别 · 计算机科学 2023-06-12 Usman Nazir , Momin Uppal , Muhammad Tahir , Zubair Khalid

In this note we consider spectral cut-off estimators to solve a statistical linear inverse problem under arbitrary white noise. The truncation level is determined with a recently introduced adaptive method based on the classical discrepancy…

数值分析 · 数学 2022-02-28 Tim Jahn

We analyze stochastic conditional gradient methods for constrained optimization problems arising in over-parametrized machine learning. We show that one could leverage the interpolation-like conditions satisfied by such models to obtain…

最优化与控制 · 数学 2022-01-28 Tesi Xiao , Krishnakumar Balasubramanian , Saeed Ghadimi

This work studies offline Reinforcement Learning (RL) in a class of non-Markovian environments called Regular Decision Processes (RDPs). In RDPs, the unknown dependency of future observations and rewards from the past interactions can be…

机器学习 · 计算机科学 2024-09-05 Ahana Deb , Roberto Cipollone , Anders Jonsson , Alessandro Ronca , Mohammad Sadegh Talebi

Accurately predicting topologically correct masks remains a difficult task for general segmentation models, which often produce fragmented or disconnected outputs. Fixing these artifacts typically requires hand-crafted refinement rules or…

计算机视觉与模式识别 · 计算机科学 2025-12-16 Malte Silbernagel , Albert Alonso , Jens Petersen , Bulat Ibragimov , Marleen de Bruijne , Madeleine K. Wyburd

In this paper, we apply the recently developed generalized parameter estimation-based observer design technique for state-affine systems to the practically important case of linear time-varying descriptor systems with uncertain parameters.…

系统与控制 · 电气工程与系统科学 2024-07-22 Romeo Ortega , Alexey Bobtsov , Fernando Castanos , Nikolay Nikolaev

Explaining the decisions made by audio spoofing detection models is crucial for fostering trust in detection outcomes. However, current research on the interpretability of detection models is limited to applying XAI tools to post-trained…

声音 · 计算机科学 2025-07-28 Menglu Li , Xiao-Ping Zhang

Change detection is a major task in remote sensing which consists in finding all the occurrences of changes in multi-temporal satellite or aerial images. The success of existing methods, and particularly deep learning ones, is tributary to…

计算机视觉与模式识别 · 计算机科学 2025-10-09 Hichem Sahbi

Facial Action Unit (AU) detection in in-the-wild environments remains a formidable challenge due to severe spatial-temporal heterogeneity, unconstrained poses, and complex audio-visual dependencies. While recent multimodal approaches have…

计算机视觉与模式识别 · 计算机科学 2026-03-13 Jun Yu , Yunxiang Zhang , Naixiang Zheng , Lingsi Zhu , Guoyuan Wang

A prevailing approach for learning visuomotor policies is to employ reinforcement learning to map high-dimensional visual observations directly to action commands. However, the combination of high-dimensional visual inputs and agile…

机器人学 · 计算机科学 2025-10-08 Yuhang Zhang , Jiaping Xiao , Chao Yan , Mir Feroskhan

High-fidelity face completion is a challenging task due to the rich and subtle facial textures involved. What makes it more complicated is the correlations between different facial components, for example, the symmetry in texture and…

计算机视觉与模式识别 · 计算机科学 2020-04-01 Tong Zhou , Changxing Ding , Shaowen Lin , Xinchao Wang , Dacheng Tao

This paper introduces our approaches for the Mask and Breathing Sub-Challenge in the Interspeech COMPARE Challenge 2020. For the mask detection task, we train deep convolutional neural networks with filter-bank energies, gender-aware…

音频与语音处理 · 电气工程与系统科学 2020-08-17 Haiwei Wu , Lin Zhang , Lin Yang , Xuyang Wang , Junjie Wang , Dong Zhang , Ming Li

Optical Character Recognition (OCR), the task of extracting textual information from scanned documents is a vital and broadly used technology for digitizing and indexing physical documents. Existing technologies perform well for clean…

计算机视觉与模式识别 · 计算机科学 2022-05-18 Daniel Rotman , Ophir Azulai , Inbar Shapira , Yevgeny Burshtein , Udi Barzelay

Parsing accuracy using efficient greedy transition systems has improved dramatically in recent years thanks to neural networks. Despite striking results in dependency parsing, however, neural models have not surpassed state-of-the-art…

计算与语言 · 计算机科学 2016-12-21 James Cross , Liang Huang

Anomaly segmentation is a critical task for driving applications, and it is approached traditionally as a per-pixel classification problem. However, reasoning individually about each pixel without considering their contextual semantics…

计算机视觉与模式识别 · 计算机科学 2023-07-26 Shyam Nandan Rai , Fabio Cermelli , Dario Fontanel , Carlo Masone , Barbara Caputo

State-of-the-art (SOTA) Automatic Speech Recognition (ASR) systems primarily rely on acoustic information while disregarding additional multi-modal context. However, visual information are essential in disambiguation and adaptation. While…

人工智能 · 计算机科学 2025-10-17 Supriti Sinhamahapatra , Jan Niehues

In this paper, we use convolutional neural networks to address the problem of model identification for autoregressive moving average time series models. We compare the performance of several neural network architectures, trained on…

统计方法学 · 统计学 2020-07-21 Wai Hoh Tang , Adrian Röllin

Images obtained with single-conjugate adaptive optics (AO) show spatial variation of the point spread function (PSF) due to both atmospheric anisoplanatism and instrumental aberrations. The poor knowledge of the PSF across the field of view…

We introduce a novel interactive satellite image change detection algorithm based on active learning. The proposed method is iterative and consists in frugally probing the user (oracle) about the labels of the most critical images, and…

计算机视觉与模式识别 · 计算机科学 2023-12-29 Hichem Sahbi