150,704 research outputs found

    Extending a geo-catalogue with matching capabilities

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    To achieve semantic interoperability, geo-spatial applications need to be equipped with tools able to understand user terminology that is typically different from the one enforced by standards. In this paper we summarize our experience in providing a semantic extension to the geo-catalogue of the Autonomous Province of Trento (PAT) in Italy. The semantic extension is based on the adoption of the S-Match semantic matching tool and on the use of a specifically designed faceted ontology codifying domain specific knowledge. We also briefly report our experience in the integration of the ontology with the geo-spatial ontology GeoWordNet

    Spatially varying effects of Gyeongui Line Forest Park on Retail Types and Location

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    Department of Urban and Environmental Engineering (Urban Infrastructure Engineering)The importance and interest about green space continue to grow as people's interest in the quality of life increases with global environmental issues in recent years. Accordingly, various studies have been conducted on the direct and indirect benefits provided by the green space in the urban. And the benefits have impact on surrounding area. These effects of parks are not only positive but also negative. the park constructed in the city plays a role in raising the property value in the surrounding area, and various studies about this effect have been steadily conducted in many countries. In particular, research on the effects of parks using hedonic models has been actively conducted. These results show that the closer the distance from the park, the greater the impact on property value and many studies show similar results. Many studies show the effect of an urban park on neighborhoods, but the effect of urban park on the specific commercial environment of the neighborhood is relatively less studied. The Gyeongui Line Forest Park is a good study area to understand the diverse pattern of commercialization according to the characteristics of the neighborhood and also it has worth doing research. Therefore, this study carried out research with two purposes. First, we suggest the sustainable management plan through empirically exploring the mechanism of commercialization triggered by the Gyeongui Line forest park. Especially, we classify the retail services into six types to identify the characteristics of retail location decision. Second, after clustering neighborhoods through statistical method, we aim to derive the academic implications that need for effective urban management planning by identifying the characteristics of retail opening according to classified neighborhoods. As a result, the construction of the Gyeongui Line Forest park led to the commercialization of adjacent neighborhoods. In particular, it was confirmed that the total retail increased 1.6 to 1.8 times in the neighborhood nearest to the park(0-100m). In addition, the increase of the occupation of all retail type in the residential area increased, and the effect was larger the closer to the park. Therefore, commercialization due to the formation of the Gyeongui Line Forest Park has been triggered, and it has been confirmed that it occurs intensively in the residential area. The patterns of retail opening induced by parks construction are as follows. In the case of restaurant, the number of entrepreneurs increased more than twice in the area adjacent to the park. Among the retail services classified in this study, the restaurant is highly productive, which is a result of empirically revealing the self-destruction of diversity as claimed by Jane Jacobs(1961). On the other hand, in the case of the neighbor retail, the result was significantly decreased only in the section(100-200m). However, it can be said that the crowding low productivity retail out has occurred. In the case of bar, it is expected that the high productivity of bar pushed off the low productivity of the neighboring retail when considering that the section between the decrease of the neighbor retail and the increase of the bar is same. In case of caf??, it decreased in the neighborhoods adjacent to the park, while it increased in the residential neighborhoods adjacent to the park. This result suggests that the caf?? sector has moved to a low rent residential area due to the park construction As a result of the above-mentioned results, commercialization was induced by the park construction, and it was confirmed that the industries with high productivity in the residential area increased in particular. These results indicate that eco-gentrification phenomenon, similar to highline parks, is needed a concern. Therefore, policy instruments for sustainable neighborhood management are needed.ope

    Designing multiplayer games to facilitate emergent social behaviours online

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    This paper discusses an exploratory case study of the design of games that facilitate spontaneous social interaction and group behaviours among distributed individuals, based largely on symbolic presence 'state' changes. We present the principles guiding the design of our game environment: presence as a symbolic phenomenon, the importance of good visualization and the potential for spontaneous self-organization among groups of people. Our game environment, comprising a family of multiplayer 'bumper-car' style games, is described, followed by a discussion of lessons learned from observing users of the environment. Finally, we reconsider and extend our design principles in light of our observations

    A hybrid property pricing model : the case of apartment residents in Jakarta Indonesia

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    Purpose: This research initiates a property pricing model that involves various perspectives and consumer considerations in selecting properties, including aspects of sales comparison, investment, hedonic life style, brand equity, and digital life style. Design/Methodology/Approach: The study investigates 222 residents of middle class apartments in Jabotadebek (Great Jakarta). The study employs Structural Equation Modelling (SEM) to test the research hypotheses. Findings: The research found that the price of apartments in the region is strongly influenced by a combination of multi aspects of sales comparison, investment, hedonic life style, brand equity, and digital life style. Practical Implications: The research has implications for investment shows the weakest contribution to the apartment price. Originality/Value: This study found that the price of apartments in the region is strongly influenced by a combination of multi aspects of sales comparison, investment, hedonic life style, brand equity, and digital life style.peer-reviewe

    Group and individual time management tools: what you get is not what you need

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    Some studies of diaries and scheduling systems have considered how individuals use diaries with a view to proposing requirements for computerised time management tools. Others have focused on the criteria for success of group scheduling systems. Few have paid attention to how people use a battery of tools as an ensemble. This interview study reports how users exploit paper, personal digital assistants (PDAs) and a group scheduling system for their time management. As with earlier studies, we find many shortcomings of different technologies, but studying the ensemble rather than individual tools points towards a different conclusion: rather than aiming towards producing electronic time management tools that replace existing paper-based tools, we should be aiming to understand the relative strengths and weaknesses of each technology and look towards more seamless integration between tools. In particular, the requirements for scheduling and those for more responsive, fluid time management conflict in ways that demand different kinds of support

    Safe, Remote-Access Swarm Robotics Research on the Robotarium

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    This paper describes the development of the Robotarium -- a remotely accessible, multi-robot research facility. The impetus behind the Robotarium is that multi-robot testbeds constitute an integral and essential part of the multi-agent research cycle, yet they are expensive, complex, and time-consuming to develop, operate, and maintain. These resource constraints, in turn, limit access for large groups of researchers and students, which is what the Robotarium is remedying by providing users with remote access to a state-of-the-art multi-robot test facility. This paper details the design and operation of the Robotarium as well as connects these to the particular considerations one must take when making complex hardware remotely accessible. In particular, safety must be built in already at the design phase without overly constraining which coordinated control programs the users can upload and execute, which calls for minimally invasive safety routines with provable performance guarantees.Comment: 13 pages, 7 figures, 3 code samples, 72 reference

    An overview of the planned CCAT software system

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    CCAT will be a 25m diameter sub-millimeter telescope capable of operating in the 0.2 to 2.1mm wavelength range. It will be located at an altitude of 5600m on Cerro Chajnantor in northern Chile near the ALMA site. The anticipated first generation instruments include large format (60,000 pixel) kinetic inductance detector (KID) cameras, a large format heterodyne array and a direct detection multi-object spectrometer. The paper describes the architecture of the CCAT software and the development strategy.Comment: 17 pages, 6 figures, to appear in Software and Cyberinfrastructure for Astronomy III, Chiozzi & Radziwill (eds), Proc. SPIE 9152, paper ID 9152-10

    Galactic Archeology with 4MOST

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    4MOST is a new wide-field, high-multiplex spectroscopic survey facility for the VISTA telescope of ESO. Starting in 2022, 4MOST will deploy more than 2400 fibres in a 4.1 square degree field-of-view using a positioner based on the tilting spine principle. In this ontribution we give an outline of the major science goals we wish to achieve with 4MOST in the area of Galactic Archeology. The 4MOST Galactic Archeology surveys have been designed to address long-standing and far-reaching problems in Galactic science. They are focused on our major themes: 1) Near-field cosmology tests, 2) Chemo-dynamical characterisation of the major Milky Way stellar components, 3) The Galactic Halo and beyond, and 4) Discovery and characterisation of extremely metal-poor stars. In addition to a top-level description of the Galactic surveys we provide information about how the community will be able to join 4MOST via a call for Public Spectroscopic Surveys that ESO will launch.Comment: To be published in "Rediscovering our Galaxy", IAU Symposium 334, Eds. C. Chiappini, I. Minchev, E. Starkenburg, M. Valentin
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