1,721,580 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Improving Minutiae Detection in Fingerprints Using Multiresolution Contrast Enhancemen
No full textThe majority of automatic fingerprint matching systems depends on the comparison of the local ridge characteristics (bifurcation and termination), and a critical step in fingerprint matching is to extract minutiae from the input image. In this work we propose a novel ridge following algorithm based on a robust image enhancement filtering. Several experiments are carried out, showing the performances of the proposed approach
IDEA: a developing tool of learning resources for LMS environments
No full textThe aim of the IDEA (Instructional DEsigner Applications) is to enhance contents production process making available to the content owners very simple and useful authoring tools for the digitalization, organization and classification of their knowledge. The results of a such process can be seen as prototypes of multimedia courses, obtained with reduced costs and times, that can be directly imported into a generic Learning Management Systems (LMS) or used as start-point in generating more complex multimedia products
Building Ontologies from Annotated Image Databases
No full textDefining and building Ontologies within the multimedia domain still remain a challenging task, due to the complexity of multimedia data and the related associated knowledge. In this paper, we investigate automatic construction of ontologies using the Flickr image databases, that contains images, tags, keywords and sometimes useful annotation describing both the content of an image and personal interesting information describing the scene. We then describe an example of automatic ontology construction in a specific semantic domain
Extraction of relevant information for e-gov processes
No full textThe necessity to manage a huge quantity of paper documents, in all bureaucratic activities, is at the basis of the increasing digitalization processes, in almost all the administrative fields. In order to support dematerialization activity, we propose a system that automatically extracts relevant information from documents and transforms them into RDF triples, suitable for indexing, retrieval and long term preservation purposes
MOWIS: A System for Building Multimedia Ontologies from Web Information Sources
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CEUR Workshop Proceedings
Volume 560, 2010, Pages 89-93
1st Italian Information Retrieval Workshop, IIR 2010; Padua; Italy; 27 January 2010 through 28 January 2010; Code 101072
MOWIS: A system for building multimedia ontologies from web information sources (Conference Paper)
Moscato, V. ,
Penta, A. ,
Persia, F. ,
Picariello, A.
University of Naples, Dipartimento di Informatica e Sistemistica, via Claudio 21, 80125, Naples, Italy
View references (13)
Abstract
Defining ontologies within the multimedia domain still remains a challenging task, due to the complexity of multimedia data and the related associated knowledge. In this paper, we propose: i) a novel multimedia ontology model that combine both low level descriptors and high level semantic concepts; ii) an automatic construction of ontologies using the Flickrweb services, that provide images, tags, Keywords: and sometimes useful annotation describing both the content of an image and personal interesting information. Eventually, we describe an example of automatic ontology construction in a specific domain
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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