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The purpose of the 12 th Conference Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (SNPD 2011) held on July 6-8, 2011 in Sydney, Australia was to bring together scientists, engineers, computer users, and students to share their experiences and exchange new ideas and research results about all aspects (theory, applications and tools) of computer and information sciences, and to discuss the practical challenges encountered along the way and the solutions adopted to solve them.

The conference organizers selected 14 outstanding papers from SNPD 2011, all of which you will find in this volume of Springer´s Studies in Computational Intelligence.

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From the content: Analysis of ISSP Environment II Survey Data Using Variable Clustering.- Polar Transformation System for Offline Handwritten Character Recognition.- Examining QoS Guarantees for Real-Time CBR Services in Broadband Wireless Access Networks.- Sin and Sigmoid Higher Order Neural Networks For Data Simulations And Predictions.

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