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In various situations one is given only the predictions of multiple classifiers over a large unlabeled test data. This scenario raises the following questions: Without any labeled data and without any a-priori knowledge about the…

Machine Learning · Statistics 2014-10-31 Ariel Jaffe , Boaz Nadler , Yuval Kluger

Exosomes are significant facilitators of inter-cellular communication that can unveil cell-cell interactions, signaling pathways, regulatory mechanisms and disease diagnostics. Nonetheless, current analysis required large amount of data for…

Biomolecules · Quantitative Biology 2024-01-29 Yang Li , Xiaoming Lyu , Kuo Zhan , Haoyu Ji , Lei Qin , JianAn Huang

Detection of sparse signals arises in a wide range of modern scientific studies. The focus so far has been mainly on Gaussian mixture models. In this paper, we consider the detection problem under a general sparse mixture model and obtain…

Information Theory · Computer Science 2012-11-13 T. Tony Cai , Yihong Wu

In optical wireless scattering communication, received signal in each symbol interval is captured by a photomultiplier tube (PMT) and then sampled through very short but finite interval sampling. The resulting samples form a signal vector…

Information Theory · Computer Science 2016-12-14 Difan Zou , Chen Gong , Zhengyuan Xu

Second harmonic generation (SHG) microscopy is a valuable tool for optical microscopy. SHG microscopy is normally performed as a point scanning imaging method, which lacks phase information and is limited in spatial resolution by the…

Three-dimensional (3D) imaging of the subcellular organisation and morphology of cells and tissues is essential for understanding biological function. Although staining is the most widely used approach for visualising biological samples…

The growth of the number of connected devices and network densification is driving an increasing demand for radio network resources, particularly Radio Frequency (RF) spectrum. Given the dynamic and complex nature of contemporary wireless…

Signal Processing · Electrical Eng. & Systems 2025-08-05 Ljupcho Milosheski , Mihael Mohorčič , Carolina Fortuna

Semantic image synthesis (SIS) is a task to generate realistic images corresponding to semantic maps (labels). However, in real-world applications, SIS often encounters noisy user inputs. To address this, we propose Stochastic Conditional…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Juyeon Ko , Inho Kong , Dogyun Park , Hyunwoo J. Kim

In this paper we introduce a new and simple method to estimate the symbol rate for single carrier systems of unknown modulation. The introduced technique detects the symbol rate from a continuous range of symbol rates, i.e. it does not…

Signal Processing · Electrical Eng. & Systems 2020-04-27 Mahmoud Elgenedy , Ayman Elezabi

The Scene Graph Generation (SGG) task aims to detect all the objects and their pairwise visual relationships in a given image. Although SGG has achieved remarkable progress over the last few years, almost all existing SGG models follow the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Lin Li , Long Chen , Hanrong Shi , Wenxiao Wang , Jian Shao , Yi Yang , Jun Xiao

Segment anything model (SAM) has emerged as the leading approach for zero-shot learning in segmentation tasks, offering the advantage of avoiding pixel-wise annotations. It is particularly appealing in medical image segmentation, where the…

Image and Video Processing · Electrical Eng. & Systems 2023-12-29 Ziyi Huang , Hongshan Liu , Haofeng Zhang , Xueshen Li , Haozhe Liu , Fuyong Xing , Andrew Laine , Elsa Angelini , Christine Hendon , Yu Gan

Performance monitoring is essential for safe clinical deployment of image classification models. However, because ground-truth labels are typically unavailable in the target dataset, direct assessment of real-world model performance is…

Machine Learning · Computer Science 2025-07-31 Tim Flühmann , Alceu Bissoto , Trung-Dung Hoang , Lisa M. Koch

Chip-based Evanescent Light Scattering (cELS) utilizes the multiple modes of a high-index contrast optical waveguide for near-field illumination of unlabeled samples, thereby repositioning the highest spatial frequencies of the sample into…

The integration of scanning tunneling microscopy (STM) and electron spin resonance (ESR) spectroscopy has emerged as a powerful and innovative tool for discerning spin excitations and spin-spin interactions within atoms and molecules…

Mesoscale and Nanoscale Physics · Physics 2024-11-04 Lyuzhou Ye , Xiao Zheng , Xin Xu

The presented study aims to estimate blood pressure (BP) using photoplethysmogram (PPG) signals while employing multiple machine learning models. The study proposes a novel algorithm for signal reconstruction, which utilizes the…

Signal Processing · Electrical Eng. & Systems 2023-01-23 Aayushman Ghosh , Sayan Sarkar , Jayant Kalra

X-ray Thomson scattering (XRTS) has emerged as a widely used diagnostics for extreme states of matter in a great variety of situations, and over a broad range of parameters. The standard approach for the interpretation of XRTS measurements…

Plasma Physics · Physics 2026-04-29 Thomas Gawne , Jan Vorberger , Zhandos Moldabekov , Hannah Bellenbaum , Tobias Dornheim

Non-intrusive detection systems have the potential to characterise materials through various transparent glass and plastic containers. Food and drink adulteration is increasingly problematic, representing a serious health risk as well as an…

Instrumentation and Detectors · Physics 2020-08-20 Holly Fleming , Mingzhou Chen , Graham D. Bruce , Kishan Dholakia

Brillouin and Raman scattering spectroscopy are established techniques for the nondestructive contactless and label-free readout of mechanical, chemical and structural properties of condensed matter. Brillouin-Raman investigations currently…

Label information plays an important role in supervised hyperspectral image classification problem. However, current classification methods all ignore an important and inevitable problem---labels may be corrupted and collecting clean labels…

Computer Vision and Pattern Recognition · Computer Science 2019-04-03 Junjun Jiang , Jiayi Ma , Zheng Wang , Chen Chen , Xianming Liu

Label-free model evaluation, or AutoEval, estimates model accuracy on unlabeled test sets, and is critical for understanding model behaviors in various unseen environments. In the absence of image labels, based on dataset representations,…

Computer Vision and Pattern Recognition · Computer Science 2021-12-02 Xiaoxiao Sun , Yunzhong Hou , Hongdong Li , Liang Zheng
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