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Stochastic models are widely used to verify whether systems satisfy their reliability, performance and other nonfunctional requirements. However, the validity of the verification depends on how accurately the parameters of these models can…

软件工程 · 计算机科学 2022-02-22 Naif Alasmari , Radu Calinescu , Colin Paterson , Raffaela Mirandola

This paper presents a high-performance general-purpose no-reference (NR) image quality assessment (IQA) method based on image entropy. The image features are extracted from two domains. In the spatial domain, the mutual information between…

计算机视觉与模式识别 · 计算机科学 2018-12-31 Xiaoqiao Chen , Qingyi Zhang , Manhui Lin , Guangyi Yang , Chu He

The mean opinion score (MOS) is a standard metric for assessing speech quality, but its singular focus fails to identify specific distortions when low scores are observed. The NISQA dataset addresses this limitation by providing ratings…

音频与语音处理 · 电气工程与系统科学 2025-06-06 Fredrik Cumlin , Xinyu Liang , Victor Ungureanu , Chandan K. A. Reddy , Christian Schüldt , Saikat Chatterjee

Image Quality Assessment (IQA) is a critical task in a wide range of applications but remains challenging due to the subjective nature of human perception and the complexity of real-world image distortions. This study proposes MetaQAP, a…

计算机视觉与模式识别 · 计算机科学 2025-10-17 Nisar Ahmed , Gulshan Saleem , Nazik Alturki , Nada Alasbali

Despite the growing clinical adoption of large language models (LLMs), current approaches heavily rely on single model architectures. To overcome risks of obsolescence and rigid dependence on single model systems, we present a novel…

We present a no-reference video quality model and algorithm that delivers standout performance for High Dynamic Range (HDR) videos, which we call HDR-ChipQA. HDR videos represent wider ranges of luminances, details, and colors than Standard…

图像与视频处理 · 电气工程与系统科学 2023-04-27 Joshua P. Ebenezer , Zaixi Shang , Yongjun Wu , Hai Wei , Sriram Sethuraman , Alan C. Bovik

We propose a general method for deep learning based point cloud analysis, which is invariant to rotation on the inputs. Classical methods are vulnerable to rotation, as they usually take aligned point clouds as input. Principle Component…

计算机视觉与模式识别 · 计算机科学 2024-02-05 Shuqing Luo , Wei Gao

Due to the diversity of assessment requirements in various application scenarios for the IQA task, existing IQA methods struggle to directly adapt to these varied requirements after training. Thus, when facing new requirements, a typical…

计算机视觉与模式识别 · 计算机科学 2024-03-11 Zewen Chen , Haina Qin , Juan Wang , Chunfeng Yuan , Bing Li , Weiming Hu , Liang Wang

Image Quality Assessment (IQA) with reference images have achieved great success by imitating the human vision system, in which the image quality is effectively assessed by comparing the query image with its pristine reference image.…

计算机视觉与模式识别 · 计算机科学 2023-12-04 Xudong Li , Jingyuan Zheng , Xiawu Zheng , Runze Hu , Enwei Zhang , Yuting Gao , Yunhang Shen , Ke Li , Yutao Liu , Pingyang Dai , Yan Zhang , Rongrong Ji

We present a deep neural network-based approach to image quality assessment (IQA). The network is trained end-to-end and comprises ten convolutional layers and five pooling layers for feature extraction, and two fully connected layers for…

计算机视觉与模式识别 · 计算机科学 2017-12-11 Sebastian Bosse , Dominique Maniry , Klaus-Robert Müller , Thomas Wiegand , Wojciech Samek

The study of video prediction models is believed to be a fundamental approach to representation learning for videos. While a plethora of generative models for predicting the future frame pixel values given the past few frames exist, the…

图像与视频处理 · 电气工程与系统科学 2023-05-09 Nagabhushan Somraj , Manoj Surya Kashi , S. P. Arun , Rajiv Soundararajan

Quality Estimation (QE) models have the potential to change how we evaluate and maybe even train machine translation models. However, these models still lack the robustness to achieve general adoption. We show that State-of-the-art QE…

计算与语言 · 计算机科学 2022-03-17 Muhammed Yusuf Kocyigit , Jiho Lee , Derry Wijaya

We propose an auto-encoding network architecture for point clouds (PC) capable of extracting shape signatures without supervision. Building on this, we (i) design a loss function capable of modelling data variance on PCs which are…

图像与视频处理 · 电气工程与系统科学 2019-08-06 Anjany Sekuboyina , Markus Rempfler , Alexander Valentinitsch , Maximilian Loeffler , Jan S. Kirschke , Bjoern H. Menze

Deep-learning based techniques have contributed to the remarkable progress in the field of automatic image quality assessment (IQA). Existing IQA methods are designed to measure the quality of an image in terms of Mean Opinion Score (MOS)…

图像与视频处理 · 电气工程与系统科学 2022-06-15 Wook-Hyung Kim , Cheul-hee Hahm , Anant Baijal , Namuk Kim , Ilhyun Cho , Jayoon Koo

Document image quality assessment (DIQA) is an important and challenging problem in real applications. In order to predict the quality scores of document images, this paper proposes a novel no-reference DIQA method based on character…

计算机视觉与模式识别 · 计算机科学 2018-07-12 Hongyu Li , Fan Zhu , Junhua Qiu

In this work, we aim at augmenting the decisions output by quantum models with "error bars" that provide finite-sample coverage guarantees. Quantum models implement implicit probabilistic predictors that produce multiple random decisions…

量子物理 · 物理学 2023-10-24 Sangwoo Park , Osvaldo Simeone

This paper discusses an approach with machine-learning probability models to evaluate the difference between good and bad data quality in a dataset. A decision tree algorithm is used to predict data quality based on no domain knowledge of…

机器学习 · 计算机科学 2020-09-16 Allen ONeill

Principal component analysis (PCA) is a key tool in the field of data dimensionality reduction that is useful for various data science problems. However, many applications involve heterogeneous data that varies in quality due to noise…

机器学习 · 统计学 2023-11-14 Javier Salazar Cavazos , Jeffrey A. Fessler , Laura Balzano

Contextual stochastic optimization is an advanced methodology to model uncertainty in the presence of contextual information during decision planning processes. Although classical methodologies focus on minimizing the expectation of a…

最优化与控制 · 数学 2025-11-24 Man Yiu Tsang , Tony Sit , Hoi Ying Wong

Representations of sequential data are commonly based on the assumption that observed sequences are realizations of an unknown underlying stochastic process, where the learning problem includes determination of the model parameters. In this…

机器学习 · 统计学 2019-09-17 Ronny Hug , Wolfgang Hübner , Michael Arens