The author would like to thank all members in KINDML (knowledge, Information, Data Management Laboratory) at Sirindhorn International Institute of Technology, Thammasat University for their help and support throughout this book publishing. Verayuth Lertnattee, Kritsada Sriphaew and Jakkrit TeCho for their contribution to the last chapter, related to text mining application. Thanks to Wittawat Jitkrittum for his help in constructing a number of good examples. Eakasit Pacharawongsakda helps prove-reading and error correction in this book. He, as well as, Nichnan Kittiphattanabawon, Nattapong Tongtep, Nongnuch Ketui, Thawachai Suwanapong help in commenting some parts in the book. Piya Limcharoen designs the cover of this book. Also the author would like to thank all faculty members in KINDML laboratory, including Ekawit Nantajeewarawat, Cholwich Nattee, Pakinee Aimmanee, Surapa Thiemjarus and Boontawee Suntisrivaraporn for their help in several research works in the laboratory which motivates to the writing of this book. Thanks to all KINDML ex-members, including Chutima Pisarn, Ithipan Methasate, Prakasith Kayasith, Thatsanee Charoenporn, Kobkrit Viriyayudhakorn, Swit Phuvipadawat, Arunee Ratikan, Konlakorn Wongpatikaseree, Issariyapol Siriwat, and Peerasak Intarapaiboon for their support. Also thanks to Virach Sornlertlamvanich, Thepchai Supnithi, Choochart Haruechaiyasak, Monthika Boriboon and Krit Kosawat, the NECTEC colleagues who always support our research. Also special thanks to Chutamanee Onsuwan who helps a lot in information extraction project. Finally, many special thanks are given to Taenporn Lertwuthipat from Technology Promotion Association (Thailand-Japan) (TPA, in short), for her great help towards the production of this book.