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One‐pot synthesis of various indolo[2,3‐b]indoles has been accomplished from a copper‐catalyzed transformation of easily accessible 2‐(substituted‐amino)aryl)(mesityl)iodonium salts and indole derivatives. Reaction offers great functional group toleration, providing a series of indolo[2,3‐b]indole derivatives in good yields. Additionally, intramolecular cyclization of 2‐(substituted‐amino)aryl)(mesityl)iodonium...
This paper classifies the user's purchase pattern into four types of behavior, and proposes an agent-based personalized multimedia Jukebox that provides a personalized service on the client side. The proposed Jukebox assists the efficient management of numerous multimedia contents stored in a personal desktop computer, and provides personalized multimedia contents to the mobile device based on a push...
In this paper, we present an agent-based personalized Web service system in music web page. In computing the preference, we develop the recommendation algorithm using the ratio of the length of each web page and users' staying time on it.
We propose a new cache coherency scheme named HCCS(hybrid cache coherency scheme) to facilitate ubiquitous data access of mobile clients. To cope with the limitations of ubiquitous computing environments, it integrates the cache invalidation scheme using broadcast channel into the publish/subscribe-based data synchronization scheme using two-way communication channel. We present novel algorithms and...
In ubiquitous environments, invisible devices and software are connected to one another to provide convenient services to users. In order to provide such services, we must have mobile devices that connect users and services. However, the types of services available have thus far been limited due to the limited resources of mobile devices. This paper will propose a solution to the resource problem...
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