First generation wireless systems, which primarily provide analog voice service, are widely in use worldwide. Second generation systems support digital voice/data traffic; some of these systems are already deployed or undergoing deployment. Third generation wireless networks will ultimately carry multimedia traffic that are characterized by combination of different informaion streams of diverse nature (e.g., voice, video, image, data). Some of the salient features of multimedia applications are high speed and changing bit rates (periodic and bursty arrivals), several virtual connections over the same access, synchronization of different information streams, and various service/deliveIy requirements (QoS).
Read the rest of this entry »

• 0 Comments

Virtual Observatory (VO) is a collection of interoperating data archives and software tools. Taking advantages of the latest information technologies, it aims to provide a data-intensively online research environment for astronomers all around the world. A large number of high-qualified astronomical software packages and libraries are powerful and easy of use, and have been widely used by astronomers for many years. Integrating those toolkits into the VO system is a necessary and important task for the VO developers.
Read the rest of this entry »

• 0 Comments

The paper presents a new approach to source code exploration, which is the result of integrating the Google Desktop Search (GDS) engine into the Eclipse development environment. The resulting search engine, named Google Eclipse Search (GES), provides improved searching in Eclipse software projects.
Read the rest of this entry »

• 0 Comments

It’s almost impossible today to be involved in web application design or development and not be aware of Ajax, a technology that includes but is not limited to Asynchronous JavaScript and XML. That’s because Ajax is currently the primary technique for driving the high responsiveness and interactivity of some of the most popular applications on the web such as Google Maps and Flickr. These applications are representative of a new generation of highly responsive, highly interactive web applications, referred to as Web 2.0 applications, that often involve users collaborating online and sharing content.
Read the rest of this entry »

• 0 Comments

Create JSF-like components, using JSP tag files
Learn how to use deferred values and deferred methods in custom JSP tag

JavaServer Pages (JSP) and JavaServer Faces (JSF) used to have different variants of the Expression Language (EL). Their unification in JSP 2.1 opened new possibilities, allowing you to use deferred values and deferred method attributes in your custom JSP tags. This article shows how to develop Java™ Web components based on JSP tag files, which are much simpler and easier to build than the JSF components.
Read the rest of this entry »

• 0 Comments

Everybody is now talking about Web 2.0, a Web that is more dynamic, richer, more interactive, and, ultimately – much more exciting than anything we know now. It’s just human nature to look for unusual and new stuff. But, what does that mean for business applications?

Let’s look at Google Maps. Yes, we are all excited by Google Maps. It looks great. It is very interactive. And, most importantly, it behaves completely differently from what we expect to see in a “normal” browser. But, compared to any realistic business application – say something like trivial Internet banking – Google Maps is nothing. It supports just a few use cases compared to the hundreds or thousands of use cases for a typical business application.
Read the rest of this entry »

• 0 Comments

A living cell can be viewed as a dynamical system in which a large number of different substances react continuously and non-linearly with one another. In order to understand the behavior of a continuous non-linear dynamical system with numerous interacting parts, it is usually insufficient to study behavior of each part in isolation. Instead, the behavior must usually be analyzed as a whole (Tomita et al., 1999).
Read the rest of this entry »

• 0 Comments

Current search engines such as Google and Yahoo! are prevalent for searching the Web. Search in dynamic pages, however, is either inexistent or far from perfect. AJAX and Rich Internet Application are such applications. They are increasingly frequent on the Web (in YouTube, Amazon, GMail, Yahoo!Mail) or mobile devices and are offering a high degree of interactivity to the user, by seamlessly loading content from the server without the need to refresh the page. Current search engines cannot correctly index AJAX applications. This produces false positives and false negatives, because search engines do not understand the application logic that loads content dynamically. Crawling an AJAX application is a difficult problem. Since the user invokes events on the page, crawling must identify the different application states generated by the client-side logic.
Read the rest of this entry »

• 0 Comments