A Simple and Scalable Filter for XML Streams

Keyword Search in XML Streams

Most existing XML stream processing techniques adopt full structured query languages such as XPath or XQuery, which are difficult for ordinary users to learn and use. This chapter presents an XML stream filter system called XKFitler, which uses keyword to filter XML streams. In XKFitler, we use the concepts of XLCA (eXclusive Lowest Common Ancestor) and XLCA Connecting Tree (XLCACT) to define t...

XMLTK: An XML Toolkit for Scalable XML Stream Processing

We describe a toolkit for highly scalable XML data processing, consisting of two components. The first is a collection of stand-alone XML tools, s.a. sorting, aggregation, nesting, and unnesting, that can be chained to express more complex restructurings. The second is a highly scalable XPath processor for XML streams that can be used to develop scalable solutions for XML stream applications. I...

Removal of H2S from Synthetic Waste Gas Streams Using a Biotrickling Filter

The removal of hydrogen sulfide (H2S) from airstreams was studied in a biotrickling filter packed with porous lava as a carrier of Thiobacillus thioparus (DSM5368) with counter current flows of the air and liquid streams. The effect of operating parameters on biotrickling filter performance was studied. Experiments were performed at different empty bed residence times (9-60 sec), and...

EFilter: An Efficient Filter for Supporting Twig Query Patterns in XML Streams

Structured Scalable Meta-formats (SSM) for Digital Item Adaptation

This paper motivates and develops an end-to-end methodology for representation and adaptation of arbitrary scalable content in a fully content non-specific manner. Scalable bit-streams are naturally organized in a symmetric multi-dimensional logical structure, and any adaptation is essentially a downward manipulation of this structure. Higher logical constructs are defined on top of this multi-...