Dear Contributing Authors,

We are grateful to your participation in the event.

There were a vast number of papers from various disciplines being submitted to ACIIDS-2012. However, due to the space limitation imposed by the agreement with the publisher, only a limited number of papers can be included in the conference proceedings. According to the reports from anonymous reviewers, the lists of accepted papers are given below:

• General Session
• Invited Sessions

We regret that we are unable to include all those distinguished works intended to ACIIDS-2012.
Here we would like to express our appreciation to all your contribution and look forward to meeting all of you in the conference venue.

For those authors who have their papers accepted for presentation in ACIIDS-2012, you are kindly reminded with the following notes:

• It is required that, for each accepted paper, at least one of the authors registers and attends the conference.
• Please follow EXACTLY the online Author Guide (http://bit.kuas.edu.tw/~aciids12), provided by the Springer and us, in the preparation of your camera-ready manuscripts and copyright forms. Please submit your camera-ready manuscripts and copyright forms by December 20, 2011.
• As a prerequisite of having your papers included in the proceedings, conference registration is due by December 20, 2011. Please refer to http://bit.kuas.edu.tw/~aciids12 for detailed information regarding the conference registration.

Please feel free to let us know (aciids12@bit.kuas.edu.tw) for any need of technical assistance regarding the preparation of your camera-ready manuscripts and copyright forms.

Finally we would like to express our appreciation to all your contribution, and look forward to meeting you all in Kaohsiung in March, 2012.

Sincerely Yours,

Jeng-Shyang Pan, Program Chair

National Kaohsiung University of Applied Sciences, Taiwan

Shyi-Ming Chen, Program Chair

National Taichung University of Education , Taiwan

Junzo Watada, Program Chair

Waseda University , Japan

Jian-Chao Zeng, Program Chair

Taiyuan University of Science and Technology , China

Ngoc Thanh Nguyen, General Chair

Wroclaw University of Technology , Poland

The 4th Asian Conference on Intelligent Information and Database Systems

E-mail: aciids12@bit.kuas.edu.tw, URL: http://bit.kuas.edu.tw/~aciids12