1,721,125 research outputs found
The Loc-I Spatial Knowledge Graph
No full textThe Location Index (Loc-I) project (http://locationindex.org) aims to enable government agencies to geospatially-integrate and analyse data reliably, effectively and efficiently across portfolios and information domains. Loc-I is part of the Data Integration Partnership for Australia (DIPA) initiative, which seeks to maximise government data to improve policy advice. This poster presents the current Linked Data approaches that provide general solutions for data integration of location-based data and its application in the Australian context. This poster was presented at the Earth Science Information Partners (ESIP) Winter Meeting in January 2020 in Bethesda, MD.</div
Building Loc-I: Spinning up a spatial knowledge graph should be easy... right?
No full textThe Loc-I project aims to improve data integration and decision making capability across multiple geographies published by Australian government agencies. In Loc-I, each geography and its features are identified precisely, unambiguously, with rich descriptions and semantics, via Linked Data URIs, and is made available via multiple views that are both human- and machine-readable, and in multiple formats. Loc-I aggregates the geographies in scope into a Hybrid Spatial Knowledge Graph and provides APIs for queries. The Hybrid Spatial Knowledge Graph provides a reference graph cache for querying and traversing features. To date, we have integrated the following geographies: Aus. Bureau of Statistics’s Australian Standard Geography Standard; Aus. Bureau of Meteorology’s Geofabric; PSMA G-NAF Address dataset. We discuss easy vs. challenging aspects of spinning up the Loc-I spatial knowledge graph.This presentation was given at the Earth Science Information Partners (ESIP) Winter Meeting held in Bethesda, MD in January 2020.</div
Effect of the telescopic analysis on <i>E</i><sub><i>loc</i></sub>.
No full text<p>Effect of the telescopic analysis on topological and metrical <i>E</i><sub><i>loc</i></sub> as a function of <i>f</i> in subways (leftmost panels), the US airline and city-based online social networks (rightmost panels). The left most panels show that <i>E</i><sub><i>loc</i></sub> is almost stable in the spectrum meaning that the local properties of the subway networks are preserved by the analysis. However, in networks with heterogeneous topological structure, the telescopic process will further increase <i>E</i><sub><i>loc</i></sub> resulting in the creation of systems that are densely connected at local level.</p
Loss of Control In Flight (LOC-I) – Time to Re-define?
Full text linkLoss of Control In Flight (LOC-I) has been the primary fatal accident category for all sectors of aviation and all types of aircraft, around the world for the past 55 years. Although accident rates for commercial jets have decreased from 11 fatal accidents per million departures in 1960 to less than 0.3 in 2015, LOC-I continues to dominate the statistics. Highly publicised accidents such as Air France 447, which crashed into the Atlantic Ocean during a flight from Rio de Janeiro, Brazil, to Paris, France in 2009, have raised public awareness of LOC-I. This and other tragic high profile LOC-I events, have motivated aircraft manufacturers, pilot training organisations, flight simulator manufacturers, research institutions and regulators to intervene. Before intervention, a clear definition of the problem is required. Current definitions are limited to non-recoverable events and the majority of previous studies have concentrated on fatal events only. This is a missed opportunity where lessons maybe learned from near misses and recorded flight data to enhance prevention and recovery strategies. This paper presents a revised definition of LOC-I considering it as a recoverable event encompassing prevention and recovery factors
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
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
- …
