Well logs are principal sources of subsurface geological information. They provide significant information on mineralogical composition, texture, sedimentary structures and petrophysical properties such as porosity and permeability. By compiling data from various well logs, one can discriminate sedimentary units with comparable log characteristics. Sedimentary units with similar fluid flow and ...

This paper attacks the challenging problem of cross-media retrieval. That is, given an image find the text best describing its content, or the other way around. Different from existing works, which either rely on a joint space, or a text space, we propose to perform cross-media retrieval in a visual space only. We contribute Word2VisualVec, a deep neural network architecture that learns to pred...

In this paper we summarize the analysis performed on the logs of multilingual image search provided by iCLEF09 and its comparison with the logs released in the iCLEF08 campaign. We have processed more than one million log lines in order to identify and characterize 5, 243 individual search sessions. We focus on the analysis of users’ behavior and their performance trying to find possible correl...

Lifelogging techniques help individuals to log their life and retrieve important events, memories and experiences. Structuring lifelogs is a major challenge in lifelogging systems since the system should present the logs in a concise and meaningful way to the user. In this article the authors present a novel approach for structuring lifelogs as places and activities based on location data. The ...

porosity is one of the fundamental petrophysical properties that should be evaluated for hydrocarbon bearing reservoirs. it is a vital factor in precise understanding of reservoir quality in a hydrocarbon field. log data are exceedingly crucial information in petroleum industries, for many of hydrocarbon parameters are obtained by virtue of petrophysical data. there are three main petrophysical...

Porosity is one of the fundamental petrophysical properties that should be evaluated for hydrocarbon bearing reservoirs. It is a vital factor in precise understanding of reservoir quality in a hydrocarbon field. Log data are exceedingly crucial information in petroleum industries, for many of hydrocarbon parameters are obtained by virtue of petrophysical data. There are three main petrophysical...

This study aims at gaining insights into user group identification in professional image search. The user groups are built by analysing the search logs recorded by a commercial picture portal for a sample of 170 users, in conjuction with the users’ occupational and topical profile information, and a topical classification of the available images. Our analysis indicates that the examined groupin...