The rise of the Web 2.0 has made content publishing easier than ever. Yesterday’s passive consumers are now active users who generate and contribute new data to the web at an immense rate. We consider evaluating data driven aggregation queries which arise in Web 2.0 applications. In this context, each user action is interpreted as an event in a corresponding stream e.g., a particular weblog fee...

Penelitian ini bertujuan untuk menghasilkan desain media pembelajaran aplikasi android berupa weblog berbasis contextual teaching and learning pada materi sistem periodik unsur. Metode penelitian yang digunakan adalah Research Development (RnD), model yaitu menurut Borg Gall dibatasi sampai tahap ke-5. Instrumen dalam angket menggunakan Rating scale dengan empat penilaian disusun bentuk checkli...

While Internet use is ubiquitous and its facets numerous, the blog is notable as a way to combine the speed of Internet delivery with more extended discussions either of a personal or professional nature. Because so many of the scientific information sources are behind “pay-walls”,1 it may not be easy to access reliable, substantive literature without affiliation. Even when material is freely a...

This paper introduces the Digital Typhoon project, whose goal is to establish the study of meteoinformatics and to develop emergency information systems in the domain of typhoon-related information. We first propose the models of emergency information systems and uses “flat-source model” as the model of emergency information systems, and explain the concepts of information aggregation, recombin...

Weblogs have emerged as a popular form of online communication, driven by an array of personal, professional and social motivations. These websites provide tools for interaction, but designed as a broadcast medium, the depth and breadth of personal relationships between authors are not immediately observable. Hypertext links made between blogs have been described as conversation, affiliation, o...