이동원 교수

As XML [5] is emerging as the data format of the internet era, there is an substantial increase of the amount of data in XML format. To better describe such XML data structures and constraints, several XML schema languages have been proposed. In this paper, we present a comparative analysis of six noteworthy XML schema languages.

The Internet has grown at a remarkable pace since the emergence of the World-Wide Web in the early 1990s. While electronic commerce (e-Commerce) has become an important issue with the growth of the Internet, there has been insufficient empirical research concerning its adoption by Internet users. In this paper, we propose the e-Commerce Adoption Model (e-CAM), which attempts to examine important factors that predict a consumer’s online purchasing behavior. e-CAM integrates the technology accepta

Two new poly(p-phenylenevinylene) (PPV) derivatives bearing 2-phenyl-5-(4-tert-butylphenyl)-1,3,4-oxadiazole pendants were prepared, and their photo- and electroluminescence properties were studied. The first polymer (P-1) is poly[2-{4-[5-(4-tert-butylphenyl)-1,3,4-oxadiazolyl]phenyl}-1,4-phenylenevinylene], which is a PPV derivative having diphenyl-substituted 1,3,4-oxadiazole pendant that is known to be an excellent electron-transporting structure. The second polymer (P-2) is poly[2-{4-[5-(4-t

In this paper, we consider two important problems that commonly occur in bibliographic digital libraries, which seriously degrade their data qualities: Mixed Citation (MC) problem (i.e., citations of different scholars with their names being homonyms are mixed together) and Split Citation (SC) problem (i.e., citations of the same author appear under different name variants). In particular, we investigate an effective yet scalable solution since citations in such digital libraries tend to be larg

Purpose - The purpose of this paper is to understand music sharing behaviour on social networking services (SNS). This study suggests and examines a research model which focuses on the influences of user motivations, such as self-expression, ingratiation, altruism, and interactivity, on music sharing behaviour in SNS through social motivation factors. Design/methodology/approach - Data were collected from 153 Korean SNS (i.e. Cyworld, Naver Blog, Daum Blog, and Tistory) users, who have experienc

Two algorithms, called NeT and CoT, to translate relational schemas to XML schemas using various semantic constraints are presented. The XML schema representation we use is a language-independent formalism named XSchema, that is both precise and concise. A given XSchema can be mapped to a schema in any of the existing XML schema language proposals. Our proposed algorithms have the following characteristics: (1) NeT derives a nested structure from a flat relational model by repeatedly applying th

If they are, only one can refer to a distinct document; if not, many can refer to the same document.