13.03.16 - 18.03.16, Seminar 16111

Rethinking Experimental Methods in Computing

Diese Seminarbeschreibung wurde vor dem Seminar auf unseren Webseiten veröffentlicht und bei der Einladung zum Seminar verwendet.

Motivation

The pervasive application of computer programs in our modern society is raising fundamental questions about how software should be evaluated. Many communities in computer science and engineering rely on extensive experimental investigations to validate and gain insights on properties of algorithms, programs, or entire software suites spanning several layers of complex code. However, as a discipline in its infancy, computer science still lags behind other long-standing fields such as natural sciences, which have been relying on the scientific method for centuries.

There are several threats and pitfalls in conducting rigorous experimental studies that are specific to computing disciplines. For example, experiments are often hard to repeat because code has not been released, it relies on stacks of proprietary or legacy software, or the computer architecture on which the original experiments were conducted is outdated. Moreover, the influence of side-effects stemming from hardware architectural features are often much higher than anticipated by the people conducting the experiments. The rise of multi-core architectures and large-scale computing infrastructures, and the ever growing adoption of concurrent and parallel programming models have made reproducibility issues even more critical. Another major problem is that many experimental works are poorly performed, making it difficult to draw any informative conclusions, misdirecting research, and curtailing creativity.

Surprisingly, in spite of all the common issues, there has been little or no cooperation on experimental methodologies between different computer science communities, who know very little of each others efforts. The goal of this seminar is to build stronger links and collaborations between computer science subcommunities around the pivotal concept of experimental analysis of software. Also, the seminar should exchange between communities their different views on experiments. The main target communities of this seminar will be algorithm engineering, programming languages, and software engineering, but we will also invite people from other communities to share their experiences. Our overall goal is to come up with a common foundation on how to evaluate software in general, and how to reproduce results. Since computer science is a leap behind natural sciences when it comes to experiments, the ultimate goal of the seminar is to make a step forward towards reducing this gap.