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相关论文: Optimal Dataset Size for Recommender Systems: Eval…

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Recommender systems use algorithms to provide users with product or service recommendations. Recently, these systems have been using machine learning algorithms from the field of artificial intelligence. However, choosing a suitable machine…

软件工程 · 计算机科学 2016-02-25 Ivens Portugal , Paulo Alencar , Donald Cowan

Cooling system plays a critical role in a modern data center (DC). Developing an optimal control policy for DC cooling system is a challenging task. The prevailing approaches often rely on approximating system models that are built upon the…

人工智能 · 计算机科学 2018-07-19 Yuanlong Li , Yonggang Wen , Kyle Guan , Dacheng Tao

In the time of Big Data, training complex models on large-scale data sets is challenging, making it appealing to reduce data volume for saving computation resources by subsampling. Most previous works in subsampling are weighted methods…

机器学习 · 计算机科学 2021-04-14 Zifeng Wang , Hong Zhu , Zhenhua Dong , Xiuqiang He , Shao-Lun Huang

Traditional scaling laws in natural language processing suggest that increasing model size and training data enhances performance. However, recent studies reveal deviations, particularly in large language models, where performance…

机器学习 · 计算机科学 2025-07-16 Zhengyu Chen , Siqi Wang , Teng Xiao , Yudong Wang , Shiqi Chen , Xunliang Cai , Junxian He , Jingang Wang

Ensemble methods are frequently used in recommender systems to improve accuracy by combining multiple models. Recent work reports sizable performance gains, but most studies still optimize primarily for accuracy and robustness rather than…

信息检索 · 计算机科学 2026-04-10 Jannik Nitschke , Lukas Wegmeth , Joeran Beel

Training time budget and size of the dataset are among the factors affecting the performance of a Deep Neural Network (DNN). This paper shows that Neural Architecture Search (NAS), Hyper Parameters Optimization (HPO), and Data Augmentation…

机器学习 · 计算机科学 2023-01-24 Mahdi Zolnouri , Dounia Lakhmiri , Christophe Tribes , Eyyüb Sari , Sébastien Le Digabel

Recent work shows that post-training datasets for LLMs can be substantially downsampled without noticeably deteriorating performance. However, data selection often incurs high computational costs or is limited to narrow domains. In this…

计算与语言 · 计算机科学 2025-09-25 Paramita Mirza , Lucas Weber , Fabian Küch

Optimization problems in engineering and applied mathematics are typically solved in an iterative fashion, by systematically adjusting the variables of interest until an adequate solution is found. The iterative algorithms that govern these…

最优化与控制 · 数学 2022-05-31 Laurent Lessard

The problem of best subset selection in linear regression is considered with the aim to find a fixed size subset of features that best fits the response. This is particularly challenging when the total available number of features is very…

统计方法学 · 统计学 2023-11-28 Sarat Moka , Benoit Liquet , Houying Zhu , Samuel Muller

With the increasing popularity of Internet-based services and applications, power efficiency is becoming a major concern for data center operators, as high electricity consumption not only increases greenhouse gas emissions, but also…

分布式、并行与集群计算 · 计算机科学 2015-03-19 Dmytro Dyachuk , Michele Mazzucco

Predicting students' academic performance has been a research area of interest in recent years with many institutions focusing on improving the students' performance and the education quality. The analysis and prediction of students'…

计算机与社会 · 计算机科学 2020-06-11 MohammadNoor Injadat , Abdallah Moubayed , Ali Bou Nassif , Abdallah Shami

In this thesis, we focus on the design of an automatic algorithms that provide personalized ranking by adapting to the current conditions. To demonstrate the empirical efficiency of the proposed approaches we investigate their applications…

机器学习 · 统计学 2022-05-17 Aleksandra Burashnikova

Handling imbalanced datasets is a challenging problem that if not treated correctly results in reduced classification performance. Imbalanced datasets are commonly handled using minority oversampling, whereas the SMOTE algorithm is a…

机器学习 · 计算机科学 2016-07-25 Xi Zhang , Di Ma , Lin Gan , Shanshan Jiang , Gady Agam

One of the most challenging problems facing NLP today is evaluation. Some of the most pressing issues pertain to benchmark saturation, data contamination, and diversity in the quality of test examples. To address these concerns, we propose…

计算与语言 · 计算机科学 2025-02-12 Vipul Gupta , Candace Ross , David Pantoja , Rebecca J. Passonneau , Megan Ung , Adina Williams

Recent works have proposed optimal subsampling algorithms to improve computational efficiency in large datasets and to design validation studies in the presence of measurement error. Existing approaches generally fall into two categories:…

统计方法学 · 统计学 2025-12-25 Jasper B. Yang , Thomas Lumley , Bryan E. Shepherd , Pamela A. Shaw

Although large pre-trained models of code have delivered significant advancements in various code processing tasks, there is an impediment to the wide and fluent adoption of these powerful models in software developers' daily workflow:…

软件工程 · 计算机科学 2022-09-07 Jieke Shi , Zhou Yang , Bowen Xu , Hong Jin Kang , David Lo

The size of large, geo-located datasets has reached scales where visualization of all data points is inefficient. Random sampling is a method to reduce the size of a dataset, yet it can introduce unwanted errors. We describe a method for…

人机交互 · 计算机科学 2017-09-14 Yan Zheng , Yi Ou , Alexander Lex , Jeff M. Phillips

Recent progress in encoder-decoder neural network architecture design has led to significant performance improvements in a wide range of medical image segmentation tasks. However, state-of-the-art networks for a given task may be too…

图像与视频处理 · 电气工程与系统科学 2021-12-22 Tariq M. Khan , Syed S. Naqvi , Erik Meijering

The aim of dataset distillation is to encode the rich features of an original dataset into a tiny dataset. It is a promising approach to accelerate neural network training and related studies. Different approaches have been proposed to…

Large-scale industrial recommender systems are usually confronted with computational problems due to the enormous corpus size. To retrieve and recommend the most relevant items to users under response time limits, resorting to an efficient…

信息检索 · 计算机科学 2019-11-21 Han Zhu , Daqing Chang , Ziru Xu , Pengye Zhang , Xiang Li , Jie He , Han Li , Jian Xu , Kun Gai