An Adaptive Learning Object Management and Search Mechanism based on Time-Series Mining

• Main Authors: Yu-Wen Yen, 嚴昱文
• Other Authors: 趙榮耀
• Format: Others
• Language: en_US
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/92568017886315087602

博士 === 淡江大學 === 資訊工程學系博士班 === 102 === Recent advances in information technology have turned out World Wide Web to be the main platform for interactions where participants – users and corresponding events – are triggered. Although the participants vary in accordance with scenarios, a considerable size of data will be generated. This phenomenon indeed causes the complexity in information retrieval, management, and reuse, and meanwhile, turns down the value of this data. In this thesis, we attempt to achieve efficient management of user-generated data and its derivative contexts for human supports. This thesis concentrates on the meaningful reuse of user-generated data, especially its usage for learning purpose, through an efficient and purpose-built data management process. First, an intelligent state machine, which is the essence to the scenario of user-generated data processing, was developed to identify, especially those frequently-accessed and with timely manner, relations of data and its derivative contexts. To accelerate the accuracy in data correlation modeling, a temporal mining algorithm is then defined. This algorithm is applied to highlight the event that a data item is being accessed, and further examines its relative attributes with other correlated items. Last, but not the least, we present a conceptual scenario of human-centric search to demonstrate the proposed approach. The performance and feasibility can be revealed by the experiments that were conducted on the data collected from open social networks (e.g., Facebook, Twitter, etc.) in the past few years with size around 500 users and 8,000,000 shared contents from them.