4,592 research outputs found
Managing the Knowledge Creation Process of Large-Scale Evaluation Campaigns
Περιέχει το πλήρες κείμενοThis paper discusses the evolution of large-scale evaluation
campaigns and the corresponding evaluation infrastructures needed to
carry them out. We present the next challenges for these initiatives and
show how digital library systems can play a relevant role in supporting
the research conducted in these fora by acting as virtual research
environments
InfoTech Update, Volume 6, Number 1, January/February 1997
https://egrove.olemiss.edu/aicpa_news/4960/thumbnail.jp
A Benchmark for Image Retrieval using Distributed Systems over the Internet: BIRDS-I
The performance of CBIR algorithms is usually measured on an isolated
workstation. In a real-world environment the algorithms would only constitute a
minor component among the many interacting components. The Internet
dramati-cally changes many of the usual assumptions about measuring CBIR
performance. Any CBIR benchmark should be designed from a networked systems
standpoint. These benchmarks typically introduce communication overhead because
the real systems they model are distributed applications. We present our
implementation of a client/server benchmark called BIRDS-I to measure image
retrieval performance over the Internet. It has been designed with the trend
toward the use of small personalized wireless systems in mind. Web-based CBIR
implies the use of heteroge-neous image sets, imposing certain constraints on
how the images are organized and the type of performance metrics applicable.
BIRDS-I only requires controlled human intervention for the compilation of the
image collection and none for the generation of ground truth in the measurement
of retrieval accuracy. Benchmark image collections need to be evolved
incrementally toward the storage of millions of images and that scaleup can
only be achieved through the use of computer-aided compilation. Finally, our
scoring metric introduces a tightly optimized image-ranking window.Comment: 24 pages, To appear in the Proc. SPIE Internet Imaging Conference
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Text genres in information organization
Introduction. Text genres used by so-called information organizers in the processes of information organization in information systems were explored in this research.
Method. The research employed text genre socio-functional analysis. Five genre groups in information organization were distinguished. Every genre group used in information
organization is described. Empirical evidence for genre group two was obtained through specific analysis of genres used by cataloguers cooperating within the Polish union catalogue. Analysis. A qualitative genre analysis concerning the choice and description of five groups of genres most important for information organization was carried out. Most attention was paid to the second group of text genres, consisting of vocabularies and rules used in cataloguing.
Results. The text genre system used in information organization and showing the roles of any specified text genre group is described. The case of the Polish union catalogue database helped to present temporo-spatial dependencies appearing in the regulated genre system.
Conclusions. Information organization involves the creation of representations of published texts with a variety of text tools. The creation of these texts and their use (reading) results in individual knowledge reorganization (modification) of all people involved in these processes, that is both writers (including authors of vocabularies, cataloguing rules and bibliographic records) and readers
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