AAE 875 – Fundamentals of Object Oriented Programming and Data Analytics
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Moon Landing Or Safari? a Study of Systematic Errors and Their Causes in Geographic Linked Data
Moon Landing or Safari? A Study of Systematic Errors and their Causes in Geographic Linked Data Krzysztof Janowicz1, Yingjie Hu1, Grant McKenzie2, Song Gao1, Blake Regalia1, Gengchen Mai1, Rui Zhu1, Benjamin Adams3, and Kerry Taylor4 1 STKO Lab, University of California, Santa Barbara, USA 2 Department of Geographical Sciences, University of Maryland, USA 3 Centre for eResearch, The University of Auckland, New Zealand 4 Australian National University, Australia Abstract. While the adoption of Linked Data technologies has grown dramatically over the past few years, it has not come without its own set of growing challenges. The triplification of domain data into Linked Data has not only given rise to a leading role of places and positioning information for the dense interlinkage of data about actors, objects, and events, but also led to massive errors in the generation, transformation, and semantic annotation of data. In a global and densely interlinked graph of data, even seemingly minor error can have far reaching conse- quences as different datasets make statements about the same resources. In this work we present the first comprehensive study of systematic errors and their potential causes. We also discuss lessons learned and means to avoid some of the introduced pitfalls in the future. 1 Introduction and Motivation Over the last few years, the Linked Data cloud has grown to a size of more than 85 billion statements, called triples, contributed by more than 9,900 data sources. A cleaned and quality controlled version made available via the LOD Laundromat [2] contains nearly 40 billion triples.1 The Linked Data cloud (and proprietary versions derived from it and other sources) have brought dramatic changes to industry, governments, and research. -
Ieee M Ic Rowa Ve Magaz In
IEEE MICROWAVE MAGAZINE THE BREADTH OF MTT VOLUME 21 • NUMBER 11 • NOVEMBER 2020 SETS NEW STANDARDS IN SPECTRUM ANALYSIS USB Real-Time Spectrum Analyzer & Vector Signal Generator Includes PC software “RTSA-Suite PRO” ✔ RF Frequency range of 10 MHz to 6 GHz ✔ Dual USB 3.0 streaming ✔ Continuous 245 MHz true I/Q streaming ✔ 1 THz/s sweep speed ✔ Simultaneous measurement of multiple bands ✔ 120 MHz Vector Signal Generator www.aaronia.com/v6 TINY Wideband Transformers& Baluns! The Industry’s Widest Selection DC to 24 GHz Consistent performance across very wide frequency bands Over 300 models in stock including a wide range of MMIC, LTCC, and core-and-wire designs RoHS compliant. (718) 934-4500 [email protected] www.minicircuits.com 528_Rev F Microwave Magazine and MTT Society Officers Editor Robert H. Caverly, Villanova University, [email protected] Assistant Editor Sharri Shaw, JWM Consulting LLC, [email protected] Associate Editors Nuño Borges Carvalho, University of Aveiro, Portugal, [email protected] Simone Bastioli, RS Microwave, New Jersey, Volume 21 • Number 11 • November 2020 • ISSN 1527-3342 United States, [email protected] Chia-Chan Chang, National Chung-Cheng University, Taiwan, [email protected] Ali Darwish, American University in Cairo, Egypt, [email protected] Christian Fager, Chalmers University of Technology, Sweden, [email protected] features Mohammad S. Hashmi, Indraprastha Institute of Information Technology, Delhi, India, [email protected] 22 The 3D Smith Chart Jianguo Ma, Guangdong University of Technology, China, [email protected] From Theory to Experimental Reality Alfy Riddle, Quanergy Systems, Inc., Sunnyvale, Andrei A. Muller, Victor Asavei, Alin Moldoveanu, California, [email protected] Esther Sanabria-Codesal, Riyaz A. -
[RE] CLAIMING SPACE Field Guide Janne Thaels Arne Van De Velde Emanuela Passadore Joel Ekelöf
[RE] CLAIMING SPACE Field Guide Janne Thaels Arne Van de Velde Emanuela Passadore Joel Ekelöf TABLE OF CONTENT INTODUCTION LEXICON DEFINITIONS CHAPTER 1 [RE] CLAIMING COMMERCIALISED SPACE CHAPTER 2 [RE ] CLAIMING HETEROTOPIA CHAPTER 3 [RE] CLAIMING THE SPACE OF EXPERIENCE AND MEMORY CHAPTER 4 [RE] CLAIMING SPACE IN THE SEA OF DATA AND LAND OF FILTERS CONCLUSION INTRODUCTION Since forever, claiming space has been a human need. But what does claiming space mean? What are the urgencies? Humans claimed territories or occupy buildings even just to survive, for protection. the need for protection is gone, but why today is there still the need to claim space? the need to explore the need for free space, open for possibilities the need to mediate the need to be yourself for real the need to control space This can be in the virtual world or in the physical world. Today we have to re-claim different spaces because of shifting borders. Between public and private, real and virtual,..borders which are present in different domains of every- day life. It refers to the degree of access granted to “outsiders,” however outsiders are defined. But despite digital privacy agreements and no-trespassing signs, the boundar- ies are often ill-defined and contested.Im the concept of claiming or re-claiming space there is a variety of scales that overlap and intersect,creating a mosaic of spaces and degrees of access. claiming space; the act of occupying / exploring / mapping / … space border; determines an area and claims the area field; the third space / the -
Close up at a Distance
close up at a distance close up at a distance MAPPING, TECHNOLOGY, AND POLITICS Laura Kurgan zone books • new york • 2013 © 2013 Laura Kurgan zone books 1226 Prospect Avenue Brooklyn, NY 11218 All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, including electronic, mechanical, photocopying, microfilming, recording, or otherwise (except for that copying permitted by Sections 107 and 108 of the U.S. Copyright Law and except by reviewers for the public press), without written permission from the Publisher. Printed in Canada. Distributed by The MIT Press, Cambridge, Massachusetts, and London, England Library of Congress Cataloging-in-Publication Data Kurgan, Laura. Close up at a distance : mapping, technology, and politics / Laura Kurgan. p. cm. isbn 978-1-935408-28-4 (alk. paper) 1. Satellite image maps. 2. Remote-sensing images— Political aspects. 3. Global positioning system—Social aspects. 4. Aerial photography. I. Title. g70.4.k87 2013 526—dc23 2012040173 Contents introduction Mapping Considered as a Problem of Theory and Practice 9 Representation and the Necessity of Interpretation 19 lexicon Fromy Militar Surveillance to the Public Sphere 39 projects 1 e You Ar Here 59 Actually to inhabit an information system 2 Kuwait: Image Mapping 85 From within the spaces of the incriminated technologies themselves 3 Cape Town, South Africa, 1968: Search or Surveillance? 97 The hinterlands of the Cold War— also of interest to the Corona cameras 4 Kosovo 1999: SPOT