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In this paper we analyze, evaluate, and improve the performance of training generalized linear models on modern CPUs. We start with a state-of-the-art asynchronous parallel training algorithm, identify system-level performance bottlenecks,…

机器学习 · 计算机科学 2018-12-20 Nikolas Ioannou , Celestine Dünner , Kornilios Kourtis , Thomas Parnell

Cold-start has being a critical issue in recommender systems with the explosion of data in e-commerce. Most existing studies proposed to alleviate the cold-start problem are also known as hybrid recommender systems that learn…

信息检索 · 计算机科学 2020-11-03 Yan Zhang , Ivor W. Tsang , Lixin Duan

The cold-start problem is a long-standing challenge in recommender systems. As a promising solution, content-based generative models usually project a cold-start item's content onto a warm-start item embedding to capture collaborative…

信息检索 · 计算机科学 2023-02-23 Zhihui Zhou , Lilin Zhang , Ning Yang

Collaborative filtering (CF) is a successful approach commonly used by many recommender systems. Conventional CF-based methods use the ratings given to items by users as the sole source of information for learning to make recommendation.…

机器学习 · 计算机科学 2015-06-22 Hao Wang , Naiyan Wang , Dit-Yan Yeung

A series of graph filtering (GF)-based collaborative filtering (CF) showcases state-of-the-art performance on the recommendation accuracy by using a low-pass filter (LPF) without a training process. However, conventional GF-based CF…

信息检索 · 计算机科学 2024-04-23 Jin-Duk Park , Yong-Min Shin , Won-Yong Shin

Collaborative filtering (CF) has been successfully employed by many modern recommender systems. Conventional CF-based methods use the user-item interaction data as the sole information source to recommend items to users. However, CF-based…

机器学习 · 计算机科学 2018-09-25 Kenan Cui , Xu Chen , Jiangchao Yao , Ya Zhang

The ever-increasing data scale of user-item interactions makes it challenging for an effective and efficient recommender system. Recently, hash-based collaborative filtering (Hash-CF) approaches employ efficient Hamming distance of learned…

信息检索 · 计算机科学 2022-05-25 Fan Wang , Weiming Liu , Chaochao Chen , Mengying Zhu , Xiaolin Zheng

A recent study has shown that diffusion models are well-suited for modeling the generative process of user-item interactions in recommender systems due to their denoising nature. However, existing diffusion model-based recommender systems…

信息检索 · 计算机科学 2024-04-23 Yu Hou , Jin-Duk Park , Won-Yong Shin

Cloud providers usually offer diverse types of hardware for their users. Customers exploit this option to deploy cloud instances featuring GPUs, FPGAs, architectures other than x86 (e.g., ARM, IBM Power8), or featuring certain specific…

分布式、并行与集群计算 · 计算机科学 2019-06-28 Isabelly Rocha , Christian Göttel , Pascal Felber , Marcelo Pasin , Romain Rouvoy , Valerio Schiavoni

Recommendation models rely on deep learning networks and large embedding tables, resulting in computationally and memory-intensive processes. These models are typically trained using hybrid CPU-GPU or GPU-only configurations. The hybrid…

硬件体系结构 · 计算机科学 2024-04-30 Muhammad Adnan , Yassaman Ebrahimzadeh Maboud , Divya Mahajan , Prashant J. Nair

Collaborative filtering (CF) is the key technique for recommender systems (RSs). CF exploits user-item behavior interactions (e.g., clicks) only and hence suffers from the data sparsity issue. One research thread is to integrate auxiliary…

人工智能 · 计算机科学 2020-10-19 Guangneng Hu , Yu Zhang , Qiang Yang

Thermal analysis is crucial in 3D-IC design due to increased power density and complex heat dissipation paths. Although operator learning frameworks such as DeepOHeat~\cite{liu2023deepoheat} have demonstrated promising preliminary results…

机器学习 · 计算机科学 2025-10-13 Xinling Yu , Ziyue Liu , Hai Li , Yixing Li , Xin Ai , Zhiyu Zeng , Ian Young , Zheng Zhang

Generative foundation models have become an important tool for data reconstruction and simulation in scientific computing, showing a tight integration with traditional numerical simulations. At the same time, with the development of new…

分布式、并行与集群计算 · 计算机科学 2026-02-19 Jinxiao Zhang , Yunpu Xu , Xiyong Wu , Runmin Dong , Shenggan Cheng , Yi Zhao , Mengxuan Chen , Qinrui Zheng , Jianting Liu , Haohuan Fu

Federated learning is a method used in machine learning to allow multiple devices to work together on a model without sharing their private data. Each participant keeps their private data on their system and trains a local model and only…

密码学与安全 · 计算机科学 2025-04-07 Feiran Yang

Giving or recommending appropriate content based on the quality of experience is the most important and challenging issue in recommender systems. As collaborative filtering (CF) is one of the most prominent and popular techniques used for…

信息检索 · 计算机科学 2019-05-07 Cong Tran , Jang-Young Kim , Won-Yong Shin , Sang-Wook Kim

State-of-the-art federated learning methods can perform far worse than their centralized counterparts when clients have dissimilar data distributions. For neural networks, even when centralized SGD easily finds a solution that is…

机器学习 · 计算机科学 2022-10-06 Yaodong Yu , Alexander Wei , Sai Praneeth Karimireddy , Yi Ma , Michael I. Jordan

The increasingly stringent regulations on privacy protection have sparked interest in federated learning. As a distributed machine learning framework, it bridges isolated data islands by training a global model over devices while keeping…

信息检索 · 计算机科学 2022-05-27 Zhitao Zhu , Shijing Si , Jianzong Wang , Jing Xiao

Collaborative filtering (CF) has been one of the most important and popular recommendation methods, which aims at predicting users' preferences (ratings) based on their past behaviors. Recently, various types of side information beyond the…

信息检索 · 计算机科学 2020-12-29 Huan Zhao , Quanming Yao , Yangqiu Song , James Kwok , Dik Lun Lee

A key inefficiency in diffusion training occurs when a randomly initialized network, lacking visual priors, encounters gradients from the full complexity spectrum--most of which it lacks the capacity to resolve. We propose Data Warmup, a…

机器学习 · 计算机科学 2026-04-10 Jinhong Lin , Pan Wang , Zitong Zhan , Lin Zhang , Pedro Morgado

A standard approach to Collaborative Filtering (CF), i.e. prediction of user ratings on items, relies on Matrix Factorization techniques. Representations for both users and items are computed from the observed ratings and used for…

信息检索 · 计算机科学 2015-06-23 Gabriella Contardo , Ludovic Denoyer , Thierry Artieres