The Seventh Pacific-Asia Conference on Knowledge Discovery and Data Mining PAKDD-03) will provide international forums to share original research results and development experiences by bringing both academic researchers and industry practitioners from different KDD related areas such as data mining, data warehousing, machine learning, databases, statistics, knowledge acquisition and discovery, data visualization, and knowledge-based systems. It will follow the success of PAKDD held in major locations by bringing together participants from universities, industry and government.