This book constitutes the refereed proceedings of theSecond International Conference on Data
Science ICDS 2015 held in Sydney Australia during August 8-9 2015. The 19 revised full
papers and 5 short papers presentedwere carefully reviewed and selected from 31 submissions.
The papers focus onthe following topics: mathematical issues in data science big data issues
andapplications data quality and data preparation data-driven scientificresearch evaluation
and measurement in data service big data mining andknowledge management case study of data
science social impacts of datascience.