1,721,018 research outputs found
Mobile mail-agents through similarity-based reasoning.
No full textBots, or software agents are programs designed
to perform tasks autonomously. Mailbots attempt to provide useful functions about electronic mail (E-mail) service such as filtering information, gathering information,
and scheduling. With Internet use continuing to explode,
the information overload is growing so fast that the same
virtues that made E-mail so popular are now becoming a
negative technologic ‘‘boomerang’’ (see the volume of junk
or spam mail). Industrial as well as academic research has
faced this problem in terms of automated filtering
methods in order to distinguish legtimate E-mail from
spamming. Here we describe an alternative approach: our
mailbot is skilled to find ‘‘appropriate’’ destination of the
message triggering a spidering process on an Intranetbased network. The spidering performs a distributed,
mobile computation via pervasive agents: by applying a
similarity-based reasoning on designed users resources the
agents are able to deduct if the contacted user may be
interested or not in receiving the E-mail. The overall
architecture is implemented in Java using the basic issues
of Internet protocol
International Symposium on Future Technology for Polyolefin and Olefin Polymerization Catalysis
No full text
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
CoDe: a Graphic Language for complex system visualization
Full text linkThe concept of macroscope has been exploited in several contexts [dR, f] to outline some methodologies aimed to describe the information of complex systems. The basic idea is that complex systems should be looked at as an integrated whole, rather than be described as an aggregate of standalone components. Following this approach, we introduce a Graphic Language named CoDe (Complexity Design) to describe visual representations which bring information according to the basic idea of a macroscope. The syntactic and semantic specification of CoDe is a framework for a methodology aimed to support visual representation of complex information. An extensible set of graphical patterns are the lexical elements of the language, which provides two families of operators: a first set of operators is supplied to compose basic patterns to form complex ones; a second set of operators allow the designer to specify the semantics of graphs by creating a logical link with the data they represent. Thus, the CoDe Graphic Language is suited to implement the features of such a methodology. CoDe is proposed as an interactive tool that support the designer of a visualization project in describing the complex system to be represented, by means of component abstraction and relation discovery, which is the basis for most decision processes. An application to graphic visualization realized by the research group DensityDesign at Politecnico di Milano - INDACO Department [dd] is provided. Some future applications to Data Mining and Datawarehouse are also outlined
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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