XML Technology Research Lab

Currently, many systems are under development. Also, a simple weblog was established. New features will be added whenever they are available. So, check back often.

Current Research Porjects:

e-Learning and Semantic Web

The Advanced Distributed Learning (ADL) initiative has developed a data sharing standard called Sharable Content Object Reference Model (SCORM) to improve data exchanges, sharing, and reuse in e-Learning environment. One of the major components that makes SCORM accomplish what it claims is the usage of metadata. However, the proposed metadata used in SCORM is limited. With the emergence of Semantic Web, we believe e-Learning systems can have much improved data exchanges, sharing, and reusability.

XML Security

XML has become a standard format for data interchanges on the Internet -- especially in the electronic commerce. Although it is extremely important to protect XML documents from being illegally modified, the development of XML security is still in its infancy stage. In this project, our focus is on access control on Web-based information systems and applications of cryptography on commerce information systems.

RDF-based Peer-to-Peer System

Due to the emerging of P2P technology, the concept of P2P has been applied in many Internet applications such as file sharing, instance messaging, and distributed computing. As a result, many researches had been devoted to improve the efficiency of P2P application routing protocols. Many protocols such as Freenet, Pastry, and Chord had been proposed. However, this type of research cannot ensure the shared resources can be found when the amount of shared resources is huge and their diversity is high. To resolve the problems, semantic-based P2P systems were proposed. In semantic-based P2P systems, each shared resource is described by some metadata. With metadata, the resources can be correctly located. In addition, because application routing protocols can take advantages of these metadata, the number of query packages can be reduced. Also, only the "possible" route will be used.

Neat Tools:

A Toolkit for Developing Small-Area Navigation Systems for Java Phones

Recently, car owners rely on their GPS systems to guide them to the place they want to go. However, sometimes, these GPS systems can not guide car owner to the right spot. For example, a car owner wishes to vist Department of Management Information Systems (MIS) of National Chung Hsing University (NCHU), all GPS systems can guide car owners to the main gate of NCHU, but not MIS. Therefore, in this project, Mr. Dai developed a toolkit that can easily generate a small-area navigation system for Java phones. The example files below were generated by the toolkit for NCHU. Certainly, the toolkit can be easily used in all small areas such as campuses, travelling sites, etc. For further information, you can contact him at punding.

(Traditional Chinese) 近年來，許多人使用車用導航系統來幫助他們找到目的地。 但是，有時候這一類的系統卻無法將他們帶到正確的點；例如，車用導航系統 可以帶領人們到達中興大學，但是卻無法帶領人們到達中興大學資管系。因此，為了 解決這種困境，戴勝丁同學開發了一套適用於小區域導航（或者導覽）系統的 產生器，利用這一套系統使用者可以容易的產生可以 Java 手機上執行的 小區域導航（或者導覽）系統；所謂的小區域包含校區、遊樂區、小型旅遊景點等。 以下所提供的範例檔，以中興大學為例，適用於大多數的 Java 手機。如果你需要 進一步的詢問，可以連絡戴勝丁同學，他的部落格在punding。

範例檔：

• 如果你的手機沒有辦法連結上 GPS，請下載 NCHUguide11.jar
• 如果你的手機可以經由藍芽接上 GPS 接受器，請下載 NCHUguide9.jar，這個程式包含前一個程式。
• 如果你的手機內建 GPS （即支援 JSR-179），請下載 NCHUguide10.jar，這個程式包含前一個程式。

A PeerSim GUI Frontend
Although PeerSim is powerful and platform independent, it is not user friendly like many other P2P simulators. In this project, Mr. Hwang developed a GUI frontend for PeerSim. For further information, you can contact him at CookP2P.
(in Traditional Chinese) 雖然 PeerSim 在模擬的功能強大，也能夠達到跨平台的 目標，但是它的開發環境就跟其他的 P2P 的模擬器一樣，非常的難用。因此， 黃冠維同學為 PeerSim 開發了一套圖形介面的前端，希望能夠讓學習以及使用 PeerSim 的使用者能夠比較容易的開發出所需要的模擬環境。需要更進一步的消息， 你可以到 CookP2P。
• PeerSim GUI Frontend (v.0.1.1; a few bugs fixed)
• Manual (in Traditioanl Chinese).

XML and E-Commerce Resources

• My XPath Testing Page: This testing page was developed by utilizing document.evaluate() function embedded in Firefox.

Publication List

Group Members: