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Basilisk is an embeddable data engine and virtual machine. Applications may use it to allow data and logic to be stored externally in a format that users may read and modify.
The BeeGram library is a portable open source search engine toolkit written in C. BeeGram provides a number of building blocks for the construction of powerful general-purpose text-based search tools.
Jaxup is an XML update engine written in Java to work against
a variety of XML based object models such as DOM,
dom4j and JDOM. It supports the xupdate standard draft and
will support other xml update standards as they become available.
XQuench is an XML Query parser and engine. The aim is to provide programmers with an API that implements the specifications at http://www.w3.org/XML/Query At first, XQuench will be Java-only. Future versions will include C++, while keeping a similar API.
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Omseek has been renamed to Xapian. Xapian is a Search Engine Library, written in C++ with bindings for Perl, Python, PHP, Java, Tcl, C# and Ruby. It allows you to easily add advanced indexing and search facilities to your applications.
CAVOR is an engine for building apps that involve both graphic and text/numeric data. Primarily GIS is the initial focus, but consider also CAD, CASE, project management (eg PERT charts), and others. Built-in scripting, C API, also supports Tcl and Java.
The idea engine is an attempt to create an interface for free exchange of ideas. The focus is towards ideas for open source projects, but may be used for any idea management purposes. The concept is to allow a way for ideas to mature.
XMLbase is a new specification/engine for writing databases in pure XML. It is currently incomplete, and is in need of developers. Its key advantage is that you could share database files between applications, and even distribute them over the internet.
Friandise is a SMB (windows) share search engine. With a web interface, you can locate (very) quickly a file on a subnet. The search engine need very little memory and cpu time (it works on a sparc 20 under linux).
Project has been obsoleted by Brix2, for which no public release is available. (Due to the lack of interest in Brix1 the work necessary to release publicly is simply not justified).
This means this project is dead.
Top Engine the Semantic Web Engine for the Enterprise. Top Engine is a Business Rule Engine that utilize OWL DL ontologies for vocabulary primitive to write rules on top of ontology. Top Engine support forward and backward chaining with truth maintenance
The BLOB Streaming engine is a MySQL storage engine that enables the streaming of BLOB data directly in and out of MySQL tables. Using the HTTP protocol, it is possible to "PUT" and "GET" text and media data of any size, to and from a database.
A lightweight versatile XQuery engine in Java, that is standards compliant and can efficiently evaluate XQueries on various containers of data -- even normal Java objects.