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Depth control of underwater vehicles in engineering applications must simultaneously satisfy requirements for rapid tracking, low overshoot, and actuator constraints. Traditional fuzzy PID tuning often relies on empirical methods, making it…

机器人学 · 计算机科学 2026-02-16 Yanxi Ding , Tingyue Jia

A key challenge in tuning Model Predictive Control (MPC) cost function parameters is to ensure that the system performance stays consistently above a certain threshold. To address this challenge, we propose a novel method, COAT-MPC,…

机器学习 · 计算机科学 2025-03-25 Albert Gassol Puigjaner , Manish Prajapat , Andrea Carron , Andreas Krause , Melanie N. Zeilinger

Spark SQL has been widely deployed in industry but it is challenging to tune its performance. Recent studies try to employ machine learning (ML) to solve this problem, but suffer from two drawbacks. First, it takes a long time (high…

分布式、并行与集群计算 · 计算机科学 2022-11-09 Jinhan Xin , Kai Hwang , Zhibin Yu

We study the problem of optimizing data storage and access costs on the cloud while ensuring that the desired performance or latency is unaffected. We first propose an optimizer that optimizes the data placement tier (on the cloud) and the…

BigBench is the new standard (TPCx-BB) for benchmarking and testing Big Data systems. The TPCx-BB specification describes several business use cases -- queries -- which require a broad combination of data extraction techniques including…

分布式、并行与集群计算 · 计算机科学 2020-07-07 Nicolas Poggi , Alejandro Montero , David Carrera

Configurable software systems can be tuned for better performance. Leveraging on some Pareto optimizers, recent work has shifted from tuning for a single, time-related performance objective to two intrinsically different objectives that…

软件工程 · 计算机科学 2023-01-10 Tao Chen , Miqing Li

Metaheuristic algorithms have gained widespread application across various fields owing to their ability to generate diverse solutions. One such algorithm is the Snake Optimizer (SO), a progressive optimization approach. However, SO suffers…

机器人学 · 计算机科学 2025-08-14 Genliang Li , Yaxin Cui , Jinyu Su

Modern automated driving solutions utilize trajectory planning and control components with numerous parameters that need to be tuned for different driving situations and vehicle types to achieve optimal performance. This paper proposes a…

系统与控制 · 电气工程与系统科学 2024-06-26 Hung-Ju Wu , Vladislav Nenchev , Christian Rathgeber

With the explosive increase of big data in industry and academic fields, it is necessary to apply large-scale data processing systems to analysis Big Data. Arguably, Spark is state of the art in large-scale data computing systems nowadays,…

分布式、并行与集群计算 · 计算机科学 2020-12-17 Shanjiang Tang , Bingsheng He , Ce Yu , Yusen Li , Kun Li

Prediction queries are widely used across industries to perform advanced analytics and draw insights from data. They include a data processing part (e.g., for joining, filtering, cleaning, featurizing the datasets) and a machine learning…

Robust iterative methods for solving large sparse systems of linear algebraic equations often suffer from the problem of optimizing the corresponding tuning parameters. To improve the performance of the problem of interest, specific…

数值分析 · 数学 2023-10-18 Andrey Petrushov , Boris Krasnopolsky

Faced with the challenges of big data, modern cloud database management systems are designed to efficiently store, organize, and retrieve data, supporting optimal performance, scalability, and reliability for complex data processing and…

数据库 · 计算机科学 2024-04-10 Limeng Zhang , M. Ali Babar

Performance tuning of Database Management Systems(DBMS) is both complex and challenging as it involves identifying and altering several key performance tuning parameters. The quality of tuning and the extent of performance enhancement…

数据库 · 计算机科学 2010-05-07 S. F. Rodd , U. P. Kulkarni

Many machine learning models, such as logistic regression~(LR) and support vector machine~(SVM), can be formulated as composite optimization problems. Recently, many distributed stochastic optimization~(DSO) methods have been proposed to…

机器学习 · 统计学 2016-12-13 Shen-Yi Zhao , Ru Xiang , Ying-Hao Shi , Peng Gao , Wu-Jun Li

Prompt engineering can significantly improve the performance of large language models (LLMs), with automated prompt optimization (APO) gaining significant attention due to the time-consuming and laborious nature of manual prompt design.…

计算与语言 · 计算机科学 2025-02-27 Wenxin Luo , Weirui Wang , Xiaopeng Li , Weibo Zhou , Pengyue Jia , Xiangyu Zhao

Big data processing at the production scale presents a highly complex environment for resource optimization (RO), a problem crucial for meeting performance goals and budgetary constraints of analytical users. The RO problem is challenging…

数据库 · 计算机科学 2024-09-24 Chenghao Lyu , Qi Fan , Fei Song , Arnab Sinha , Yanlei Diao , Wei Chen , Li Ma , Yihui Feng , Yaliang Li , Kai Zeng , Jingren Zhou

Drones are effective for reducing human activity and interactions by performing tasks such as exploring and inspecting new environments, monitoring resources and delivering packages. Drones need a controller to maintain stability and to…

系统与控制 · 电气工程与系统科学 2021-05-19 Azin Shamshirgaran , Hamed Javidi , Dan Simon

In modern data centers, energy usage represents one of the major factors affecting operational costs. Power capping is a technique that limits the power consumption of individual systems, which allows reducing the overall power demand at…

性能 · 计算机科学 2017-09-05 Stefano Conoci , Pierangelo Di Sanzo , Bruno Ciciani , Francesco Quaglia

Model predictive control (MPC) is a promising approach for the lateral and longitudinal control of autonomous vehicles. However, the parameterization of the MPC with respect to high-level requirements such as passenger comfort as well as…

系统与控制 · 电气工程与系统科学 2022-12-14 David Stenger , Robert Ritschel , Felix Krabbes , Rick Voßwinkel , Hendrik Richter

In the era of data explosion, a growing number of data-intensive computing frameworks, such as Apache Hadoop and Spark, have been proposed to handle the massive volume of unstructured data in parallel. Since programming models provided by…

分布式、并行与集群计算 · 计算机科学 2021-07-27 Bingbing Rao , Zixia Liu , Hong Zhang , Siyang Lu , Liqiang Wang