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We propose a randomized first order optimization method--SEGA (SkEtched GrAdient method)-- which progressively throughout its iterations builds a variance-reduced estimate of the gradient from random linear measurements (sketches) of the…

最优化与控制 · 数学 2018-10-19 Filip Hanzely , Konstantin Mishchenko , Peter Richtarik

Traditional knowledge graph (KG) embedding methods aim to represent entities and relations in a low-dimensional space, primarily focusing on static graphs. However, real-world KGs are dynamically evolving with the constant addition of…

人工智能 · 计算机科学 2025-08-18 Yifei Li , Lingling Zhang , Hang Yan , Tianzhe Zhao , Zihan Ma , Muye Huang , Jun Liu

In this paper, we propose a self-supervised visual representation learning approach which involves both generative and discriminative proxies, where we focus on the former part by requiring the target network to recover the original image…

计算机视觉与模式识别 · 计算机科学 2021-11-29 Yunjie Tian , Lingxi Xie , Xiaopeng Zhang , Jiemin Fang , Haohang Xu , Wei Huang , Jianbin Jiao , Qi Tian , Qixiang Ye

Edge-cloud hybrid inference offloads difficult inputs to a powerful remote model, but the uplink channel imposes hard per-request constraints on the number of bits that can be transmitted. We show that selecting transmitted content based…

机器学习 · 计算机科学 2026-04-22 Inhyeok Choi , Hyuncheol Park

Diffusion models manifest evident benefits across diverse domains, yet their high sampling cost, requiring dozens of sequential model evaluations, remains a major limitation. Prior efforts mainly accelerate sampling via optimized solvers or…

机器学习 · 计算机科学 2025-09-22 Haoran Zhao , Tong Bai , Lei Huang , Xiaoyu Liang

Recent advances in generative networks have enabled new approaches to subsurface velocity model synthesis, offering a compelling alternative to traditional methods such as Full Waveform Inversion. However, these approaches predominantly…

机器学习 · 计算机科学 2026-04-02 Huseyin Tuna Erdinc , Ipsita Bhar , Rafael Orozco , Thales Souza , Felix J. Herrmann

A new paradigm to estimate the gradient of a black-box scalar function is introduced, considering it as a member of a set of admissible gradients that are computed using existing function samples. Results on gradient estimate accuracy,…

最优化与控制 · 数学 2025-08-28 Lorenzo Sabug , Fredy Ruiz , Lorenzo Fagiano

Unsupervised Domain Adaptation (UDA) aims to bridge the gap between a source domain, where labelled data are available, and a target domain only represented with unlabelled data. If domain invariant representations have dramatically…

机器学习 · 计算机科学 2020-12-04 Victor Bouvier , Philippe Very , Clément Chastagnol , Myriam Tami , Céline Hudelot

Diffusion planners are a strong approach for offline reinforcement learning, but they can fail when value-guided selection favours trajectories that score well yet are locally inconsistent with the environment dynamics, resulting in brittle…

机器学习 · 计算机科学 2026-03-04 Yuan Lu , Dongqi Han , Yansen Wang , Dongsheng Li

Geometric foundation models show promise in 3D reconstruction, yet their progress is severely constrained by the scarcity of diverse, large-scale 3D annotations. While Internet videos offer virtually unlimited raw data, utilizing them as a…

计算机视觉与模式识别 · 计算机科学 2026-02-10 Zihui Gao , Ke Liu , Donny Y. Chen , Duochao Shi , Guosheng Lin , Hao Chen , Chunhua Shen

The significant variability in cell size and shape continues to pose a major obstacle in computer-assisted cancer detection on gigapixel Whole Slide Images (WSIs), due to cellular heterogeneity. Current CNN-Transformer hybrids use static…

图像与视频处理 · 电气工程与系统科学 2026-03-24 Gia Huy Thai , Hoang-Nguyen Vu , Anh-Minh Phan , Quang-Thinh Ly , Tram Dinh , Thi-Ngoc-Truc Nguyen , Nhat Ho

Stochastic gradient descent (SGD) is a premium optimization method for training neural networks, especially for learning objectively defined labels such as image objects and events. When a neural network is instead faced with subjectively…

神经与进化计算 · 计算机科学 2022-04-15 Kosmas Pinitas , Konstantinos Makantasis , Antonios Liapis , Georgios N. Yannakakis

Sketching is one of the most fundamental tools in large-scale machine learning. It enables runtime and memory saving via randomly compressing the original large problem into lower dimensions. In this paper, we propose a novel sketching…

机器学习 · 计算机科学 2023-06-08 Zhao Song , Yitan Wang , Zheng Yu , Lichen Zhang

Effective mental health counseling is a complex, theory-driven process requiring the simultaneous integration of psychological frameworks, real-time distress signals, and strategic intervention planning. This level of clinical reasoning is…

计算与语言 · 计算机科学 2026-04-30 Eliya Naomi Aharon , Meytal Grimland , Avi Segal , Loona Ben Dayan , Inbar Shenfeld , Yossi Levi Belz , Kobi Gal

Data augmentation is a key element for training accurate models by reducing overfitting and improving generalization. For image classification, the most popular data augmentation techniques range from simple photometric and geometrical…

机器学习 · 计算机科学 2022-11-02 Avery Ma , Nikita Dvornik , Ran Zhang , Leila Pishdad , Konstantinos G. Derpanis , Afsaneh Fazly

Collaborative training methods like Federated Learning (FL) and Split Learning (SL) enable distributed machine learning without sharing raw data. However, FL assumes clients can train entire models, which is infeasible for large-scale…

机器学习 · 计算机科学 2025-06-18 Srijith Nair , Michael Lin , Peizhong Ju , Amirreza Talebi , Elizabeth Serena Bentley , Jia Liu

Large language models (LLMs) can generate syntactically valid optimization programs, yet often struggle to reliably choose an effective modeling strategy, leading to incorrect formulations and inefficient solver behavior. We propose SAGE, a…

人工智能 · 计算机科学 2026-05-05 Ruiqing Zhao , Fengzhi Li , Yuan Zuo , Rui Liu , Yansong Liu , Yunfei Ma , Fanyu Meng , Junlan Feng

Autonomous vehicles (AV) are expected to revolutionize transportation and improve road safety significantly. However, these benefits do not come without cost; AVs require large Deep-Learning (DL) models and powerful hardware platforms to…

信号处理 · 电气工程与系统科学 2023-04-19 Arnav Malawade , Mohanad Odema , Sebastien Lajeunesse-DeGroot , Mohammad Abdullah Al Faruque

Retrieval-augmented question answering over heterogeneous corpora requires connected evidence across text, tables, and graph nodes. While entity-level knowledge graphs support structured access, they are costly to construct and maintain,…

信息检索 · 计算机科学 2026-02-20 Prasham Titiya , Rohit Khoja , Tomer Wolfson , Vivek Gupta , Dan Roth

Sparse Autoencoders (SAEs) are a promising approach for extracting neural network representations by learning a sparse and overcomplete decomposition of the network's internal activations. However, SAEs are traditionally trained considering…

机器学习 · 计算机科学 2025-04-02 Jeffrey Olmo , Jared Wilson , Max Forsey , Bryce Hepner , Thomas Vin Howe , David Wingate
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