Web Content Display

►A new application is now available. This application is a terminal which allows you to get access to the gLite command lines or to ExpressLane without having to start Desktop Fusion. The implementation is based on the Gate One HTML5 terminal and, therefore, you need to have a modern web browser in order to be able to use it.


The first N4U Interactive Tutorial in the form of a video is now online


► Download the N4U Flyer here!


► The first N4U Newsletter June 2012 is now online!


►The ADRD (Alzheimer's Disease and Related Disorders) Conclusions Report from the outGRID - ITU workshop held in Geneva on 21st February is now available, presenting the discussion on current context on ADRD research and funding, current problems and challenges, conclusions and follow-up actions. You can find the general workshop report here.

Web Content Display

N4U Querying Service for Information Retrieval



N4U Querying Services Functionality and Interaction with N4U Services




The Querying Service provides a basic querying mechanism for information retrieval from the N4U Analysis Base. The Querying Service facilitates the N4U users and mainly the N4U services, such as N4U Analysis Service to submit customisable queries for information retrieval from the Analysis Base, for example ADNI datasets related information created on or during a specific time period, datasets or pipeline owned by a given user, and/or the meta-data associated with an image file stored in the Analysis Base.



With this service, a user can also collect a catalogue of both image and files residing in the N4U Grid infrastructure. Other N4U services such as Analysis Service can access the service interfaces exposed by the Querying Service to retrieve information from the Analysis Base. For example, the Analysis Service can find information about an algorithm used in a pipeline and the time a pre-executed pipeline took in the past to complete one particular analysis for the given inputs.




Functionality of Querying Service and its Interaction with other N4U Services