1,720,973 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
Cleaning data with Llunatic
Full text linkData cleaning (or data repairing) is considered a crucial problem in many database-related tasks. It consists in making a database consistent with respect to a given set of constraints. In recent years, repairing methods have been proposed for several classes of constraints. These methods, however, tend to hard-code the strategy to repair conflicting values and are specialized toward specific classes of constraints. In this paper, we develop a general chase-based repairing framework, referred to as Llunatic, in which repairs can be obtained for a large class of constraints and by using different strategies to select preferred values. The framework is based on an elegant formalization in terms of labeled instances and partially ordered preference labels. In this context, we revisit concepts such as upgrades, repairs and the chase. In Llunatic, various repairing strategies can be slotted in, without the need for changing the underlying implementation. Furthermore, Llunatic is the first data repairing system which is DBMS-based. We report experimental results that confirm its good scalability and show that various instantiations of the framework result in repairs of good quality
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
The Re-Exploration Of Territory
No full textThe Re-Exploration Of Territory. It takes centuries for a natural landscape to be formed while it only takes decades to replace this for an urban landscape. Since the Industrial revolution mankind has found new ways to demand more and more natural territory, transforming it into human territory. Especially in areas where excessive industrial methods have been used to dig for non-renewable energy resources, scars become visible in the landscape representing the exhaustion of nature. One of the primary most valuable fossil fuels is coal, the black gold. Throughout the world several places have turned into machine like landscapes to dig for coal, supported by thousands if not millions of mineworkers, to bring it up all the way from the deep dark earth into the light of day. But as soon as these natural reserves are running out factories will close resulting directly in a radical decrease of employment. Introducing a new era, in which cities are left with critical and unattractive conditions full of abandoned factories and old mining sites that uninterrupted continue the process of decay leaving its inhabitants without any hope for the future. While the history of these cities is reminded as negative and black due to the huge amount of human labour the future perspective nowadays looks even darker. Belgium is one of the countries where an industrial backbone with a huge image problem as a result of the coal mines can be found. The Walloon region located in the middle of Belgium stretching east to west over 200 km is even referred to as the "Black Country." In areas like these territory, from an architectural point of view, becomes not only ambiguous but also scaleless. A successful operation with the goal to reactivate such a large region with an architectural intervention seems completely out of reach far away from the reality of today. It is not only the huge dimension of the area that is, on almost every visible scale, screaming for a gigantic intervention but also the present depressed atmosphere which on a psychological level makes it even harder to handle. There is no escape possible since every element that reminds of this history whether it is an abandoned mine site, railway, waterway or the hills of waste coal present throughout the landscape form a painful confrontation with reality. And this is exactly the problem, the presence of the ghost of history roaming around the Walloon region, leaving an architect completely unable, due to its largeness and extensiveness, to set any serious goal for revival or recovering. While a solution for the WHOLE area is more than needed to create new possibilities with a positive perspective for the future. As often the solution for this problem is housed in the problem itself in which the extensiveness of the mine sites is to play a key role as a starting point to create a fragmentized impact throughout the region. Another main issue is concerning the architectural way of thinking. While architecture itself is often set to be the goal it is an useless concept as such in this case, since the ultimate goal is revival of the region. Architecture has to suit itself in the role as tool, forming a guide to achieve a higher goal. Let us return to the ambiguity of territory, in which 'terra' the Latin word for 'land' is housed. Looking back at the industrial mining landscape in which nature had to cope with severe loss and damage. While the manmade urban landscape is left to the devolution of time the natural landscape, despite all the destruction and loss, has the ability to restore and renew itself. And this is not only opening up new possibilities but it is also creating a new dimension in the problem of territory. Nature created coal – Humans remove coal and leave traces behind – Nature returns and evolves on the old remains. Within this struggle an interesting subject can be found on or near the old mine sites, hills made by man existing out of waste coal (trash). These hills, called Terrils, are closely related to nature but are created by man. To which territory do they belong? Decades after the closure of the first mines these Terrils are the first to be taken back by nature. Evolving, as green archipelagos, clearly present as fragments within the industrial landscape. They house the answer of revival, a huge potentiality, but can it be explored?Studio Public TerritoryPublic BuildingArchitectur
Gare de Mons transition hub
No full textA new station for the city of Mons, Belgium, that links both the city center and the commercial centerPublic Buildings, Territory in TransitArchitectureArchitectur
Troubled environment: A casino hotel and passive water treatment in an abandoned openmine in South Limburg, The Netherlands
No full textArchitectur
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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