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Efficient and stable training of large language models (LLMs) remains a core challenge in modern machine learning systems. To address this challenge, Reparameterized Orthogonal Equivalence Training (POET), a spectrum-preserving framework…

Machine Learning · Computer Science 2026-03-06 Zeju Qiu , Lixin Liu , Adrian Weller , Han Shi , Weiyang Liu

Embedded system performances are bounded by power consumption. The trend is to offload greedy computations on hardware accelerators as GPU, Xeon Phi or FPGA. FPGA chips combine both flexibility of programmable chips and energy-efficiency of…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-01-16 Christophe Alias

The technologically-relevant task of feature extraction from data performed in deep-learning systems is routinely accomplished as repeated fast Fourier transforms (FFT) electronically in prevalent domain-specific architectures such as in…

In this article it is presented an FPGA based $M$ulti-$V$oltage $T$hreshold (MVT) system which allows of sampling fast signals ($1-2$ ns rising and falling edge) in both voltage and time domain. It is possible to achieve a precision of time…

Position emission tomography (PET) is widely used in clinics and research due to its quantitative merits and high sensitivity, but suffers from low signal-to-noise ratio (SNR). Recently convolutional neural networks (CNNs) have been widely…

Image and Video Processing · Electrical Eng. & Systems 2023-12-12 Se-In Jang , Tinsu Pan , Ye Li , Pedram Heidari , Junyu Chen , Quanzheng Li , Kuang Gong

The language-guided robot grasping task requires a robot agent to integrate multimodal information from both visual and linguistic inputs to predict actions for target-driven grasping. While recent approaches utilizing Multimodal Large…

Robotics · Computer Science 2025-02-10 Houjian Yu , Mingen Li , Alireza Rezazadeh , Yang Yang , Changhyun Choi

Large Language Models (LLMs) are increasingly adopted for complex scientific text generation tasks, yet they often suffer from limitations in accuracy, consistency, and hallucination control. This thesis introduces a Parameter-Efficient…

Computation and Language · Computer Science 2024-11-12 Daniil Sulimov

Positron emission tomography (PET) enables quantification of dynamic physiological processes through time-resolved imaging. In Rb-82 myocardial perfusion PET, kinetic compartment modeling is used to estimate physiological parameters and…

Medical Physics · Physics 2026-04-09 Myungheon Chin , Sarah J Zou , Garry Chinn , Craig S. Levin

In a low-statistics PET imaging context, the positive bias in regions of low activity is a burning issue. To overcome this problem, algorithms without the built-in non-negativity constraint may be used. They allow negative voxels in the…

Image and Video Processing · Electrical Eng. & Systems 2020-12-14 Maël Millardet , Saïd Moussaoui , Diana Mateus , Jérôme Idier , Thomas Carlier

Positron emission tomographs (PET) do not measure an image directly. Instead, they measure at the boundary of the field-of-view (FOV) of PET tomograph a sinogram that consists of measurements of the sums of all the counts along the lines…

This paper presents a case study of how Petco, a leading pet retailer, innovated their pet health analysis processes using the Media Insights Engine to reduce the time to first diagnosis. The company leveraged this framework to build custom…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Anjanava Biswas

We introduce PGF-Net (Progressive Gated-Fusion Network), a novel deep learning framework designed for efficient and interpretable multimodal sentiment analysis. Our framework incorporates three primary innovations. Firstly, we propose a…

Machine Learning · Computer Science 2025-08-25 Bin Wen , Tien-Ping Tan

It has been widely acknowledged that Very Long Baseline Interferometry (VLBI) in the submillimeter wavelengths can make imaging observations of super massive black holes possible. The Sub-Millimeter Array (SMA) along with the James Clerk…

Instrumentation and Methods for Astrophysics · Physics 2012-10-23 Vinayak Nagpal

We developed a positron emission tomography (PET) system for multiple-isotope imaging. Our PET system, named multiple-isotope PET (MI-PET), can distinguish between different tracer nuclides using coincidence measurement of prompt…

The Gamma Ray Energy Tracking Array (GRETA) is a 4-{\pi} detector system, currently under development, capable of determining energy, timing and tracking of multiple gamma-ray interactions inside germanium crystals as demonstrated in the…

Instrumentation and Detectors · Physics 2020-11-03 Thorsten Stezelberger , John Joseph , Vamsi Vytla , Sergio Zimmermann

The rapid growth of model scale has necessitated substantial computational resources for fine-tuning. Existing approach such as Low-Rank Adaptation (LoRA) has sought to address the problem of handling the large updated parameters in full…

Computer Vision and Pattern Recognition · Computer Science 2024-10-18 Yiming Shi , Jiwei Wei , Yujia Wu , Ran Ran , Chengwei Sun , Shiyuan He , Yang Yang

The field of connectomics faces unprecedented "big data" challenges. To reconstruct neuronal connectivity, automated pixel-level segmentation is required for petabytes of streaming electron microscopy data. Existing algorithms provide…

The present paper proposes a novel computational method for parametric imaging of nuclear medicine data. The mathematical procedure is general enough to work for compartmental models of diverse complexity and is effective in the…

Tissues and Organs · Quantitative Biology 2017-05-15 Mara Scussolini , Sara Garbarino , Gianmario Sambuceti , Giacomo Caviglia , Michele Piana

Positron Emission Tomography (PET) is an imaging method that can assess physiological function rather than structural disturbances by measuring cerebral perfusion or glucose consumption. However, this imaging technique relies on injection…

Image and Video Processing · Electrical Eng. & Systems 2021-03-10 Sahar Yousefi , Hessam Sokooti , Wouter M. Teeuwisse , Dennis F. R. Heijtel , Aart J. Nederveen , Marius Staring , Matthias J. P. van Osch

This document reports the design, implementation and testing of a small silicon resource usage, very flexible arbitrary percentile finding scheme called the Tiny Median Filter. It can be used not only as a median filter in image processing…

Hardware Architecture · Computer Science 2024-12-10 Jinyuan Wu