The Web has evolved from being a collection of documents to a collection of interconnected services that interoperate throughout the Internet. Web services are a natural consequence of this evolution. The web services model was initially centered around ...

With the rapid development of Cloud computing, social computing, and Web of Things, an increasing number of requirements of complexity and reliability for modeling Web services composition have emerged too. As more reliable methods are needed to model ...

The large increase of spam deliveries since the first half of 2013 entailed hard to solve troubles in spam filters. In order to adequately fight spam, the throughput of spam filtering platforms should be necessarily increased. In this context, and ...

Service-oriented development is challenging mainly because Web service developers tend to disregard the importance of the exposed service APIs, which are specified using Web Service Description Language WSDL documents. Methodologically, WSDL documents ...

Mobile devices with their more and more powerful resources allow the development of mobile information systems in which services are not only provided by traditional systems but also autonomously executed and controlled in the mobile devices themselves. ...

Web service interfaces can be discovered through several means, including service registries, search engines, service portals, and peer-to-peer networks. But discovering Web services in such heterogeneous environments is becoming a challenging task and ...

As the Internet matured, security became more important and formerly adequate designs became inadequate. One of the victims of the increased need for security was *sendmail*. This paper shows how its competitors improved on its design in response to the ...

This paper presents the development experience and the evaluation of a system to emulate interactive features of Access Grid virtual rooms (venues) at Web endpoints. The system includes a toolset to demultiplex Access Grid sources, transcode them to ...

This paper presents the research results of an ongoing technology transfer project carried out in cooperation between the University of Salerno and a small software company. The project is aimed at developing and transferring migration technology to the ...

This paper investigates the computational characteristics of the software applications that are developed to support typical modern e-commerce applications. These applications have a significant impact on global commerce, and their influence is expected ...

The radical development in information technology makes the information appliances (IAs) able to interact and share information using the universal plug and play (UPnP) protocol. Inter-IA interactions that involve more than one IA do exist in the future ...

Digital Television will bring a significant increase in the amount of channels and programs available to end users, with many more difficulties to find contents appealing to them among a myriad of irrelevant information. Thus, automatic content ...

We present MOB, a service-oriented scripting language, for programming mobile agents. We argue that combining the service-oriented and mobile agent paradigms provides a very natural model for programming a large class of distributed applications. In MOB,...

Keyword-based search engines such as Google" index Web pages for human consumption. Sophisticated as such engines have become, surveys indicate almost 25% of Web searchers are unable to find useful results in the first set of URLs returned (Technology ...

We propose a (meta-)search engine, called SnakeT (SNippet Aggregation for Knowledge ExtracTion), which queries more than 18 commodity search engines and offers two complementary views on their returned results. One is the classical flat-ranked list, the ...

This paper documents hazardous situations on the Web that crawlers must address. This knowledge was accumulated while developing and operating the Viúva Negra (VN) crawler to feed a search engine and a Web archive for the Portuguese Web for four years. ...

Although electronic mail is an increasingly important service, there are few empirical studies of e-mail traffic. We have observed over 2.85 million messages passing through our departmental servers over the course of seven months, and derived ...

Software is critical for Internet service availability since an Internet service may become unavailable due to software faults or software maintenance. In this paper, we propose a framework to allow zero-loss recovery and online maintenance for Internet ...

In this paper we present our experience in the development of a geographic information system that includes a large database (over 7 GB) with information about the infrastructure and facilities of the municipalities in the province of A Coruña (...

Scientific research and practical applications of solar physics require data and computational services to be integrated seamlessly and efficiently. The European Grid for Solar Observations (EGSO) leverages Grid-oriented concepts and technology to ...