1,293 research outputs found
Creating Re-Useable Log Files for Interactive CLIR
This paper discusses the creation of re-useable log files for investigating interactive cross-language search behaviour. This was run as part of iCLEF 2008-09 where the goal was generating a record of user-system interactions based on interactive cross-language image searches. The level of entry to iCLEF was made purposely low with a default search interface and online game environment provided by the organisers. User-system interaction and input from users was recorded in log files for future investigation. This novel approach to running iCLEF resulted in logs containing more than 2 million lines of data
Multilingual interactive experiments with Flickr
This paper presents a proposal for iCLEF 2006, the interactive track
of the CLEF cross-language evaluation campaign. In the past, iCLEF has
addressed applications such as information retrieval and question answering. However, for 2006 the focus
has turned to text-based image retrieval from Flickr. We describe
Flickr, the challenges this kind of collection presents to
cross-language researchers, and suggest initial iCLEF tasks
iCLEF 2006 Overview: Searching the Flickr WWW photo-sharing repository
This paper summarizes the task design for iCLEF 2006 (the CLEF interactive track).
Compared to previous years, we have proposed a radically new task: searching images
in a naturally multilingual database, Flickr, which has millions of photographs shared
by people all over the planet, tagged and described in a wide variety of languages.
Participants are expected to build a multilingual search front-end to Flickr (using
Flickr’s search API) and study the behaviour of the users for a given set of searching
tasks. The emphasis is put on studying the process, rather than evaluating its outcome
Falling birth rates and world population decline: A quantitative discussion (1950-2040)
The UN data (1950-2010) and projections (both medium and low-fertility variants for 2015-
2040) show that fertility rates are already below replacement level in all continents except Africa. In this
paper we develop a simple new approach for population projections based on a Improved Rate Equations
(IRE) model. Population projections under the (1) Malthusian assumption, (2) an (IRE) model fitting and
extrapolating from actual UN population data up to 2040, and (3) UN projections (low-fertility variant),
are compared. The model fits quite well actual data and suggests a world population decline in the 21st
Century. The economic, social and political consequences of this new and global circumstance would be
far reachin
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