Treffer: Discovering Top Experts for Trending Domains on Stack Overflow.

Abstract Stack Overflow is an online Question Answer Community, generating huge user content for research analysis. Stack Overflow is used to find top experts on a specific domain. The domains of interest are java, javascript, C# and python. The study identifies topic specific expert as with the Stack Overflow statistics, where the latter provides top experts based on reputation score irrespective of the domain. The algorithms used are PageRank and HITS score. The Discounted Cumulative Gain is used to measure the correctness of the analysis. [ABSTRACT FROM AUTHOR]