C
Cristian Klein
Researcher at Umeå University
Publications - 48
Citations - 1060
Cristian Klein is an academic researcher from Umeå University. The author has contributed to research in topics: Cloud computing & Brownout. The author has an hindex of 17, co-authored 45 publications receiving 871 citations. Previous affiliations of Cristian Klein include École normale supérieure de Lyon & Technical University of Cluj-Napoca.
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Proceedings ArticleDOI
Brownout: building more robust cloud applications
TL;DR: Experiments show that brownout self-adaptation dramatically improves the ability to withstand flash-crowds and hardware failures, without over-provisioning.
Proceedings ArticleDOI
Software Engineering Meets Control Theory
Antonio Filieri,Martina Maggio,Konstantinos Angelopoulos,Nicolas D'Ippolito,Ilias Gerostathopoulos,Andreas B. Hempel,Henry Hoffmann,Pooyan Jamshidi,Evangelia Kalyvianaki,Cristian Klein,Filip Krikava,Sasa Misailovic,Alessandro Vittorio Papadopoulos,Suprio Ray,Amir Molzam Sharifloo,Stepan Shevtsov,Mateusz Ujma,Thomas Vogel +17 more
TL;DR: In this article, the authors present a control design process for software systems which enables automatic analysis and synthesis of a controller that is guaranteed to have the desired properties and behavior of the desired software and its controller.
Proceedings ArticleDOI
Software engineering meets control theory
Antonio Filieri,Martina Maggio,Konstantinos Angelopoulos,Nicolas D'Ippolito,Ilias Gerostathopoulos,Andreas B. Hempel,Henry Hoffmann,Pooyan Jamshidi,Evangelia Kalyvianaki,Cristian Klein,Filip Krikava,Sasa Misailovic,Alessandro Vittorio Papadopoulos,Suprio Ray,Amir Molzam Sharifloo,Stepan Shevtsov,Mateusz Ujma,Thomas Vogel +17 more
TL;DR: A control design process for software systems which enables automatic analysis and synthesis of a controller that is guaranteed to have the desired properties and behavior is discussed.
Journal ArticleDOI
Control Strategies for Self-Adaptive Software Systems
Antonio Filieri,Martina Maggio,Konstantinos Angelopoulos,Nicolas D'Ippolito,Ilias Gerostathopoulos,Andreas B. Hempel,Henry Hoffmann,Pooyan Jamshidi,Evangelia Kalyvianaki,Cristian Klein,Filip Krikava,Sasa Misailovic,Alessandro Vittorio Papadopoulos,Suprio Ray,Amir Molzam Sharifloo,Stepan Shevtsov,Mateusz Ujma,Thomas Vogel +17 more
TL;DR: A reference control design process, from goal identification to the verification and validation of the controlled system, and a taxonomy of the main control strategies, analyzing their applicability to software adaptation for both functional and nonfunctional goals.
Proceedings ArticleDOI
Generating high-performance custom floating-point pipelines
TL;DR: This generator is presented around the simple example of a collision detector, which it significantly improves in accuracy, DSP count, logic usage, frequency and latency with respect to an implementation using standard floating-point operators.