StreamLab Collaboratory: Experiments, data sets, and research synthesis

Data sets and population synthesis

The availability of new wide field survey opens the era of emphasizing our knowledge of large scale structure and evolution of the Galaxy. We describe the population synthesis approach used at Besancon Observatory which has led to a consistent description of the Galaxy, the way the model is constrained both by theoretical approach and by large scale surveys, from photometry, as well as from kin...

The Collaboratory for Support of Scientific Research

Towards a Data Science Collaboratory

Data-driven research requires many people from different domains to collaborate efficiently. The domain scientist collects and analyzes scientific data, the data scientist develops new techniques, and the tool developer implements, optimizes and maintains existing techniques to be used throughout science and industry. Today, however, this data science expertise lies fragmented in loosely connec...

A Research Collaboratory for the Open Source Software Research

Various research approaches have been proposed to study the OSS movement. To facilitate this OSS related research, we designed and implemented an online research collaboratory. It is not only a repository including over two years of monthly database dumps from SourceForge.net, but also an online community supporting OSS related research. We describe the design and implementation of the research...

Compressed Dictionaries: Space Measures, Data Sets, and Experiments

In this paper, we present an experimental study of the spacetime tradeoffs for the dictionary problem, where we design a data structure to represent set data, which consist of a subset S of n items out of a universe U = {0, 1, . . . , u − 1} supporting various queries on S. Our primary goal is to reduce the space required for such a dictionary data structure. Many compression schemes have been ...