1,720,973 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Variations on the Author
Get PDF“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
Controlling the Battlefield: Computing and Operational Command in the Swedish Armed Forces, 1966–1989
No full textIn the late 1960s, the Swedish Defence Staff initiated the development of a computerized command and control system that was later to be known as the LEO-system. From the mid-1970s to 1989, more than two hundred million SEK were spent on the project, which involved private computer consultants and with military staff officers acting as project leaders and customers. In the end, however, only the intelligence application was introduced and put into operational use in the Swedish intelligence service during the 1990s. This paper will tell the story of the LEO-system and outline some of the reasons behind its failure. It is based on a witness seminar held at the Swedish Armed Forces Headquarters in Stockholm on January 15, 2008.</p
JA 37:Pilot och system : transkript av ett vittnesseminarium vid Tekniska museet i Stockholm den 11 december 2007
No full textThe witness seminar ”JA 37 – Pilot och system” was held at the National Museum of Science and Technology in Stockholm on 11 December 2007 and was led by professor Karl Johan Åström. Different aspects of the use of Information Technology in the development of real time control systems in the fighter version of Viggen (JA 37) were discussed and debated, with special emphasis on integration of the systems surrounding the pilot. The critical importance of close cooperation between development engineers and test pilots, primarily at the customer FMV and the main contractor Saab, at LM Ericsson and Svenska Radiobolaget, and test pilots at Saab and the Swedish Air Force was underlined. This also included the emerging use of mission and task analysis, system simulators and early flying experimentation and test beds. The basic arcitechture of the airborne system with a central computer to which most of the major sub-systems and equipment was connected was carried over from the Attack Viggen System (AJ 37) with its single digital computer. The total system functionality and capability was vastly improved due to the introduction of digital computers in all major subsystems, an inertial platform, built-in test and data recording systems for maintenance, mission performance feedback and training purposes. A major undertaking was the development of an integrated Electronic Display System with three major displays: a Head-up Display (SI), a Tactical Situation Display (TI), including an all electronically generated map function, and a Radar/ Target Display (MI). In particular the development of the Tactical Indicator (TI), made possible by new solid state technology, facilitated more autonomous fighter tactics than possible with previous radar based command and control system. The all important challenge for the JA 37 project was the development of the pulse dopper radar PS-46/A, a task carried out by LM Ericsson with support from Hughes Aircraft Company and guidance from FMV. Special attention was paid to the use of digital computers for highspeed signals processing. Moreover, the critical design choice of medium pulse repetition frequency was debated. Finally, software development tools and methodology were discussed
NIBS: Utvecklingen av Näckens informationsbehandlingssystem, 1966-82 : Transkript av ett vittnesseminarium vid Tekniska museet i Stockholm den 14 januari 2008
No full textThe witness seminar ”NIBS: The Development of the Näcken Information Handling System, 1966–82” was held at the National Museum of Science and Technology in Stockholm on 14 January 2008 and was led by Nils Bruzelius. During the seminar, the development of the computerized command and control system of the Näcken-class submarines was discussed. A major feature of the system was the computerization of the calculation of target data, which made possible the automatic and simultaneous tracking and monitoring of ten different targets. Different aspects of this development were covered at the seminar, in particular the development of mathematical models for target calculation. The computing algorithm was formulated by researchers at FOA, and implemented in close cooperation with consultants from Teleplan. Moreover, the computerization of other systems related to the handling and controlling of the submarine, a task carried out by Kockums in Karlskrona, was discussed. The critical importance of digital computing in the magnetic mine protection system was underlined. In purchasing the computer system, separate technical specifications for hardware and computer software was formulated. The role of government intervention in the purchase of the central computer was discussed and debated. Finally, the technical and tactical testing of the submarine system was covered, with special emphasis on the computerized information handling systems.QC 20130422</p
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Tidig flygradar : Transkript av ett vittnesseminarium vid Tekniska museet i Stockholm den 15 april 2008
No full textThe witness seminar “Tidig flygradar” [Early airborne radar] was held at Tekniska museet [the National Museum of Science and Technology] in Stockholm on 15 April 2008 and was led by Gunnar Lindqvist. During the seminar, the development and use of airborne radar systems in the Swedish air force during the 1950s and 1960s was discussed and debated. The use of airborne radar in the night fighters Mosquito and Venom, and its impact on fighter tactics, was covered in detail. The technical collaboration between the French electronics firm CSF, the radar division of the Royal Swedish Air Board and LM Ericsson was underlined as a crucial factor behind the successful introduction of the first Swedish built radar systems in the strike and night fighter versions of Lansen. Development of the Lead collision course fire control system, and integration between radar and guided missiles, were critical undertakings in the development of airborne radar systems in the first Swedish supersonic fighter Draken. The subsequent efforts to modify the radar systems to counter electronic jamming were touched upon. Finally, the development of the PS-37 radar, developed in collaboration between the Royal Swedish Air Board and LM Ericsson for use in the strike version of Viggen, was covered in detail.QC 20130422</p
JA 37:Pilot och system [Elektronisk resurs] : transkript av ett vittnesseminarium vid Tekniska museet i Stockholm den 11 december 2007
No full textThe witness seminar ”JA 37 – Pilot och system” was held at the National Museum of Science and Technology in Stockholm on 11 December 2007 and was led by professor Karl Johan Åström. Different aspects of the use of Information Technology in the development of real time control systems in the fighter version of Viggen (JA 37) were discussed and debated, with special emphasis on integration of the systems surrounding the pilot. The critical importance of close cooperation between development engineers and test pilots, primarily at the customer FMV and the main contractor Saab, at LM Ericsson and Svenska Radiobolaget, and test pilots at Saab and the Swedish Air Force was underlined. This also included the emerging use of mission and task analysis, system simulators and early flying experimentation and test beds. The basic arcitechture of the airborne system with a central computer to which most of the major sub-systems and equipment was connected was carried over from the Attack Viggen System (AJ 37) with its single digital computer. The total system functionality and capability was vastly improved due to the introduction of digital computers in all major subsystems, an inertial platform, built-in test and data recording systems for maintenance, mission performance feedback and training purposes. A major undertaking was the development of an integrated Electronic Display System with three major displays: a Head-up Display (SI), a Tactical Situation Display (TI), including an all electronically generated map function, and a Radar/ Target Display (MI). In particular the development of the Tactical Indicator (TI), made possible by new solid state technology, facilitated more autonomous fighter tactics than possible with previous radar based command and control system. The all important challenge for the JA 37 project was the development of the pulse dopper radar PS-46/A, a task carried out by LM Ericsson with support from Hughes Aircraft Company and guidance from FMV. Special attention was paid to the use of digital computers for highspeed signals processing. Moreover, the critical design choice of medium pulse repetition frequency was debated. Finally, software development tools and methodology were discussed.</p
From Royal Academy of Science to Regional University Colleges: Historical perspectives on Swedish intermediary organizations for knowledge transfer
No full text- …
