Introduction The development of networks connecting a large number of distributed databases will shortly make available extremely large amounts of data. For instance there is currently a project whose objective is the interconnection of one hundred existing molecular-biology databases. This kind of interconnection raises two issues: How is relevant information to be retrieved ? And what is the ...

This work presents a neural network for the retrieval of images from text queries. The proposed network is composed of two main modules: the first one extracts a global picture representation from local block descriptors while the second one aims at solving the retrieval problem from the extracted representation. Both modules are trained jointly to minimize a loss related to the retrieval perfo...

The “Semantic Web” aims at enhancing the functionality of the current web to bring “meaning” to the content of web pages so that to considerably improve the access to this content. Bringing meaning to multimedia content is the aim of the MPEG-7 standard. However, merely attaching MPEG-7 descriptions to multimedia content does not necessarily make access to this type of content more effective. F...

The knowledge and expertise of employees is the major asset that knowledgebased organizations hold. In order to make use of this asset, it is necessary to enhance the communication between employees so that they can share knowledge and expertise. Expertise matching – locating experts with the specific expertise is receiving more and more attention since it facilitates people connection to each ...

This article describes how mathematical content items and formulæ are processed, retrieved, and accessed in ActiveMath. Central to the retrieval and access is a search tool which allows for searching text, attributes, relations and formulæ, and presenting items. The search tool has been evaluated according to the standard measures of precision and recall as well as for usability. We report resu...

Ants retrieve visual memories to guide them en route to their goal. A new study shows that wood ants use object width to retrieve the correct visual memory at the appropriate position along their route. A computational model that accurately reproduces the ants' behaviour raises questions about the underlying mechanisms.

The Standard Young Tableaux are used to label the basis vectors of the standard or Young Yamanouchi basis of the symmetric group. There is a one to one correspondence between the eigen values of the Complete Set of Commuting Operators-I (CSCO-I) of Symmetric group of degree n (Sn) and the Standard Young Tableaux(SYT). In this paper, a new graphical method to index and retrieve the standard Youn...

An increasing number of databases have become web accessible through HTML form-based search interfaces. The data units returned from the underlying database are usually encoded into the result pages dynamically for human browsing. For the encoded data units to be machine process able, which is essential for many applications such as deep web data collection and Internet comparison shopping, the...

Current systems force users to store their documents in hierarchic filesystems. However, users remember their documents not in terms of ad-hoc categories, but of their contents, why they were written, etc. Describing documents using such autobiographic information would be a simpler and more effective way for users to retrieve them. Furthermore, we found that users mention printed versions of d...