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Scene graphs have emerged as accurate descriptive priors for image generation and manipulation tasks, however, their complexity and diversity of the shapes and relations of objects in data make it challenging to incorporate them into the…

机器学习 · 计算机科学 2023-11-07 Pavel Jahoda , Azade Farshad , Yousef Yeganeh , Ehsan Adeli , Nassir Navab

In this paper, we propose a Dimension-Reduced Second-Order Method (DRSOM) for convex and nonconvex (unconstrained) optimization. Under a trust-region-like framework, our method preserves the convergence of the second-order method while…

最优化与控制 · 数学 2023-07-04 Chuwen Zhang , Dongdong Ge , Chang He , Bo Jiang , Yuntian Jiang , Yinyu Ye

We introduce Projection-based Reduction of Implicit Spurious bias in vision-language Models (PRISM), a new data-free and task-agnostic solution for bias mitigation in VLMs like CLIP. VLMs often inherit and amplify biases in their training…

计算机视觉与模式识别 · 计算机科学 2025-07-15 Mahdiyar Molahasani , Azadeh Motamedi , Michael Greenspan , Il-Min Kim , Ali Etemad

Matrix-based preconditioned optimizers, such as Muon, have recently been shown to be more efficient than scalar-based optimizers for training large-scale neural networks, including large language models (LLMs). Recent benchmark studies of…

机器学习 · 计算机科学 2026-02-02 Yifeng Liu , Angela Yuan , Quanquan Gu

In this work, we develop proximal preconditioned gradient methods with a focus on spectral gradient methods providing a proximal extension to the Muon and Scion optimizers. We introduce a family of stochastic algorithms that can handle a…

We introduce SPRING, a novel stochastic proximal alternating linearized minimization algorithm for solving a class of non-smooth and non-convex optimization problems. Large-scale imaging problems are becoming increasingly prevalent due to…

最优化与控制 · 数学 2021-01-20 Derek Driggs , Junqi Tang , Jingwei Liang , Mike Davies , Carola-Bibiane Schönlieb

We design new continuous phase modulation (CPM) formats which are based on the combination of a proper precoder with binary input and a ternary CPM. The proposed precoder constrains the signal phase evolution in order to increase the…

信息论 · 计算机科学 2016-11-17 Malek Messai , Amina Piemontese , Giulio Colavolpe , Karine Amis , Frederic Guilloud

Foundation models (FMs) have achieved remarkable success across a wide range of applications, from image classification to natural langurage processing, but pose significant challenges for deployment at edge. This has sparked growing…

机器学习 · 计算机科学 2025-07-17 Muhammad Azlan Qazi , Alexandros Iosifidis , Qi Zhang

In this paper, we present PRISM, a Promptable and Robust Interactive Segmentation Model, aiming for precise segmentation of 3D medical images. PRISM accepts various visual inputs, including points, boxes, and scribbles as sparse prompts, as…

计算机视觉与模式识别 · 计算机科学 2024-04-24 Hao Li , Han Liu , Dewei Hu , Jiacheng Wang , Ipek Oguz

The Muon optimizer, a matrix-structured algorithm that leverages spectral orthogonalization of gradients, is a milestone in the pretraining of large language models. However, the underlying mechanisms of Muon -- particularly the role of…

机器学习 · 计算机科学 2026-01-21 Jianhao Ma , Yu Huang , Yuejie Chi , Yuxin Chen

Automating experimental protocol design and execution remains as a fundamental bottleneck in realizing self-driving laboratories. We introduce PRISM (Protocol Refinement through Intelligent Simulation Modeling), a framework that automates…

Muon has emerged as a promising optimizer for large-scale foundation model pre-training by exploiting the matrix structure of neural network updates through iterative orthogonalization. However, its practical efficiency is limited by the…

机器学习 · 计算机科学 2026-04-14 Ziyue Liu , Ruijie Zhang , Zhengyang Wang , Yequan Zhao , Yupeng Su , Zi Yang , Zheng Zhang

Multivariate time series classification supports applications from wearable sensing to biomedical monitoring and demands models that can capture both short-term patterns and multi-scale temporal dependencies. Despite recent advances,…

机器学习 · 计算机科学 2026-04-07 Federico Zucchi , Thomas Lampert

Sparse tensors are the most used representation of sparse multidimensional data. Operations that decompose them, selecting their most important features while reducing their dimension, have become prevalent procedures in machine learning.…

分布式、并行与集群计算 · 计算机科学 2026-05-29 Daniel Pacheco , Leonel Sousa , Aleksandar Ilic

Compute the coarsest simulation preorder included in an initial preorder is used to reduce the resources needed to analyze a given transition system. This technique is applied on many models like Kripke structures, labeled graphs, labeled…

计算机科学中的逻辑 · 计算机科学 2017-09-07 Gérard Cécé

We introduce a constrained optimization framework for training transformers that behave like optimization descent algorithms. Specifically, we enforce layerwise descent constraints on the objective function and replace standard empirical…

机器学习 · 计算机科学 2026-01-27 Javier Porras-Valenzuela , Samar Hadou , Alejandro Ribeiro

This study presents PRISM, a probabilistic simplex component analysis approach to identifying the vertices of a data-circumscribing simplex from data. The problem has a rich variety of applications, the most notable being hyperspectral…

信号处理 · 电气工程与系统科学 2022-02-16 Ruiyuan Wu , Wing-Kin Ma , Yuening Li , Anthony Man-Cho So , Nicholas D. Sidiropoulos

MIMO systems are considered as most promising for wireless communications. However, with an increasing number of radio front ends the corresponding energy consumption and costs become an issue, which can be relieved by the utilization of…

信息论 · 计算机科学 2019-09-30 Erico S. P. Lopes , Lukas T. N. Landau

This paper presents a scalable beamforming design for maximizing the spectral efficiency (SE) of multi-reconfigurable intelligent surface (RIS)-aided communications through joint optimization of the precoder and RIS phase shifts in…

信号处理 · 电气工程与系统科学 2026-01-28 Mintaek Oh , Jinseok Choi

We consider the sequential change-point detection problem of detecting changes that are characterized by a subspace structure. Such changes are frequent in high-dimensional streaming data altering the form of the corresponding covariance…

统计理论 · 数学 2018-06-29 Liyan Xie , George V. Moustakides , Yao Xie