This book constitutes the refereed post-proceedings of the 9th International Workshop on Information Search, Integration and Personalization, ISIP 2014, held in Kuala Lumpur, Malaysia, in October 2014.

The 6 revised full papers and one invited papers presented were carefully reviewed and selected from 19 presentations. The papers are organized around the following topics: information search in large data sets (databases, digital libraries, data warehouses); comparison of different information search technologies, approaches, and algorithms; novel approaches to information...