173,105 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe 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
Talk: Introduction to Max Hunter field recordings
No full textCollected by Max Hunter Transcribed by Nathaniel Lucy
Told by Max Hunter Springfield, Missouri May 7, 1958
Reel 236
Talk
Mary Celestia Parler: This is the seventh of May and Max Hunter is here again and is going to let me dub some more of the songs he got in the field.
Max Hunter: The next eight songs were sang by Mrs. Gladys Everly of Springfield, Missouri and she sang these for me in her daughter's home on April 20, 1958.Funding for digitization provided by the Arkansas Humanities Council and the Happy Hollow Foundation
Notes in Field: MTA from Harvard Sq to Washington St. Elevated from Winter St. to Northampton.
No full textNotes on a field trip from Boston City Hospital to Old North Church, by foot,
Monday, 25 June, conducted as part of the Perceptual Form of the City, a research
project investigating the individual’s perception of the urban landscape
Decentralised Coordination of Unmanned Aerial Vehicles for Target Search using the Max-Sum Algorithm
No full textThis paper considers the coordination of a team of Unmanned Aerial Vehicles (UAVs) that are deployed to search for a moving target within a continuous space. We present an online and decentralised coordination mechanism, based on the max-sum algorithm, to address this problem. In doing so, we introduce a novel coordination technique to the field of robotic search, and we extend the max-sum algorithm beyond the much simpler coordination problems to which it has been applied to date. Within a simulation environment, we benchmarked our max-sum algorithm against three other existing approaches for coordinating UAVs. The results showed that coordination with the max sum algorithm out-performed a best response algorithm, which represents the state of the art in the coordination of UAVs for search, by up to 26%. The results further showed that the max-sum algorithm out-performed an implicitly coordinated approach, where the coordination arises from the agents making decisions based on a common belief, by up to 34% and finally a non-coordinated approach by up to 68%
Andrew Field papers
No full textAndrew Field (1938- ) is a scholar, translator, and author, who has published translations of Russian literature, critical studies, biographies, fiction, essays, and travel articles. He holds degrees from Columbia University as well as a Ph.D. from the University of Queensland, Brisbane, Australia. From 1977 to 1979, he was a professor at Griffith University, Brisbane, Australia. Dr. Field's papers consist of materials relating to the writing of his 1983 study of the life and work of Djuna Barnes, Djuna: the Formidable Miss Barnes (alternately entitled Djuna: The Life and Times of Djuna Barnes). Included in the collection are correspondence, manuscripts, research notes, clippings related to the book's publication and reception, and photographs. Also included is a handwritten manuscript of a poem by Barnes
Notes in Field - Functional Trip
No full textNotes on a trip from Massachusetts General Hospital to South Station as quickly as possible. These notes were collected as part of the Perceptual Form of the City, a research project investigating the individual’s perception of the urban landscape
U-max статистики и их предельное поведение
No full textВ работе изучается предельное поведение широкого класса U-max статистик, обобщая предыдущие результаты в этой области. Кроме того, приводятся примеры применения полученной общей теоремы к разным не исследованным ранее задачам.We study the limiting behavior of a wide class of U-max statistics and generalize the previous results in the field. We also provide some examples of application of the established genereal theorem to some problems which were not studied before
Dispelling the Myths Behind First-author Citation Counts
No full textWe 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
An extension of min/max flow framework
No full textIn this paper, the min/max flow scheme for image restoration is revised. The novelty consists of the fol-
24 lowing three parts. The first is to analyze the reason of the speckle generation and then to modify the
25 original scheme. The second is to point out that the continued application of this scheme cannot result
26 in an adaptive stopping of the curvature flow. This is followed by modifications of the original scheme
27 through the introduction of the Gradient Vector Flow (GVF) field and the zero-crossing detector, so as
28 to control the smoothing effect. Our experimental results with image restoration show that the proposed
29 schemes can reach a steady state solution while preserving the essential structures of objects. The third is
30 to extend the min/max flow scheme to deal with the boundary leaking problem, which is indeed an
31 intrinsic shortcoming of the familiar geodesic active contour model. The min/max flow framework pro-
32 vides us with an effective way to approximate the optimal solution. From an implementation point of
33 view, this extended scheme makes the speed function simpler and more flexible. The experimental
34 results of segmentation and region tracking show that the boundary leaking problem can be effectively
35 suppressed
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