This survey gives an overview of formal results on the XML query language XPath. We
identify several important fragments of XPath, focusing on subsets of XPath 1.0. We then …

In recent research it turned out that Boolean verification of digital signatures in the context of
WS-Security is likely to fail: If parts of a SOAP message are signed and the signature …

Some of the most relevant document schemas used online, such as XML and JSON, have a
nested format. In the past decade, the task of extracting data from nested documents over …

In recent years, XML-based Publish-Subscribe Systems have become popular due to the
increased demand of timely event-notification. Users (or subscribers) pose complex profiles …

XML is currently the most popular format for exchanging and representing data on the web. It
is used in various applications and for different types of data including structured …

ABSTRACT Publish-subscribe (pub-sub) systems present the state of the art in information
dissemination to multiple users. Current XML-based pub-sub systems provide users with …

Earliest query answering (eqa) is an objective of streaming algorithms for XML query
answering, that aim for close to optimal memory management. In this paper, we show that …

In recent years, publish–subscribe systems based on XML filtering have received much
attention in ubiquitous computing environments and Internet applications. The main …

We present a query answering algorithm for a fragment of Forward XPath on Xml streams
that we obtain by compilation to deterministic nested word automata. Our algorithm is …

Query answering algorithms on Xml streams check answer candidates on the fly in order to
avoid the unnecessary buffering whenever possible. The delay and concurrency of a query …