One of the popular network security programs supporting host access control is the ’TCP Wrapper’ [13]. TCP Wrapper is a software–only system and many computers connected to the Internet are using it. But, TCP Wrapper does ’IP address–based’ access control. IP address is not such a reliable source when authenticating a host. In this paper, we point out two possible attacks against the TCP Wrappe...

Most today’s web sources do not provide suitable interfaces for software programs to interact with them. Many researchers have proposed highly effective techniques to address this problem. Nevertheless, ad-hoc solutions are still frequent in real-world web automation applications. Arguably, one of the reasons for this situation is that most proposals have focused on query wrappers, which transf...

Continuous data extraction pipelines using wrappers have become common and integral parts of businesses dealing with stock, flight, or product information. Extracting data from websites that use HTML templates is difficult because available wrapper methods are not designed to deal with websites that change over time (the inclusion or removal of HTML elements). We are the first to perform large ...

An apparatus and method for providing an elevator door performance result of an elevator door in an elevator door system which normally operates sequentially from state-to-state in a closed loop sequential chain of normal operating states is disclosed. A plurality of parameter signals provided by the elevator door system is monitored by the apparatus. The apparatus comprises: a door state seque...

This article proposes the introduction of emerging technologies based on semantics, combined with multi-agent systems, information retrieval techniques and reasoning processes, to automate and facilitate the processes of identification, extraction, storage and retrieval of personal graduate information associated with an educational institution, oriented to obtain accreditation. Thereby impleme...

In this paper we present an information service system that allows users to search for the key players of requested technology areas and for their collaboration networks. This system utilizes information extraction and wrapper technologies for detecting persons, organizations, publications and patents as well as relationships among them. Furthermore, it applies relation extraction to detect sta...

The purpose of this entry is to bring in an extension of ontologies so that they can be utilized in the process of automated information extraction from the web documents. Major part of it is dedicated to a proposition and derivation of an inference model for evaluation of the pattern matches and their combination. Further is proposed a simple naïve method of wrapper induction which is able to ...

Comparison shopping is a merchant brokering process that provides the information about a specific product from several distributed shopping mall sites. The implementation of a comparison shopping agent is a challenging issue mainly because different on-line shopping malls employ their own way of organizing interface components, processing user queries, and displaying search results on the brow...

A (k, l)-contextual tree language can be learned from positive examples only; such languages have been successfully used as wrappers for information extraction from web pages. This paper shows how to represent the wrapper as an unranked tree automaton and how to construct it directly from the examples instead of using the (k, l)-forks of the examples. The former speeds up the extraction, the la...

Some emerging trends in the recent development of the WWW can be observed. These trends are technical, like Web Services, as well as semantic, like the integration of ontologies. We propose an architecture for a new kind of federated search system, which takes these aspects and new developments into account. A major challenge in this context is to cope with portals and the data sources behind t...