Volunteered Geographic Information for Disaster Management

2013 ◽  
pp. 98-118 ◽  
Author(s):  
Doris Dransch ◽  
Kathrin Poser ◽  
Joachim Fohringer ◽  
Christian Lucas
Keyword(s):  
Urban Planning ◽  
Data Collection ◽  
Quality Assessment ◽  
Disaster Management ◽  
World Wide ◽  
Geographic Information ◽  
Web Based ◽  
Content Sharing ◽  
The World ◽  
Share Information

The amount of information generated and provided by citizens via the World Wide Web is constantly growing. Citizens share information, thoughts, and experiences in blogs and contribute information to web-based content sharing platforms, collaboratively created data bases that are freely usable by everybody. Disaster management as one component of urban planning to decrease a society’s vulnerability can benefit from information provided by citizens. This chapter gives an overview of the application of information provided by citizens in disaster management. It points out the potential of using such information for the various phases of disaster management. Three main challenges, which affect the usefulness of information supplied by citizens, are presented in more detail: data collection, localization and quality assessment. For each of these challenges, various approaches to address them are discussed.

Volunteered Geographic Information for Disaster Management

2013 ◽  
pp. 477-496 ◽  
Author(s):  
Doris Dransch ◽  
Kathrin Poser ◽  
Joachim Fohringer ◽  
Christian Lucas
Keyword(s):  
Urban Planning ◽  
Data Collection ◽  
Quality Assessment ◽  
Disaster Management ◽  
World Wide ◽  
Geographic Information ◽  
Web Based ◽  
Content Sharing ◽  
The World ◽  
Share Information

The amount of information generated and provided by citizens via the World Wide Web is constantly growing. Citizens share information, thoughts, and experiences in blogs and contribute information to web-based content sharing platforms, collaboratively created data bases that are freely usable by everybody. Disaster management as one component of urban planning to decrease a society’s vulnerability can benefit from information provided by citizens. This chapter gives an overview of the application of information provided by citizens in disaster management. It points out the potential of using such information for the various phases of disaster management. Three main challenges, which affect the usefulness of information supplied by citizens, are presented in more detail: data collection, localization and quality assessment. For each of these challenges, various approaches to address them are discussed.

Data Collection Methodologies for Web-Based Experiments

2005 ◽  
pp. 680-684
Author(s):  
Stu Westin
Keyword(s):  
Data Collection ◽  
Interface Design ◽  
World Wide ◽  
Experimental Studies ◽  
Web Based ◽  
Research Designs ◽  
The World ◽  
Web Research ◽  
Vexing Problem ◽  
Online Web

Experimental studies involving the use of the World Wide Web (WWW) are becoming increasingly common in disciplines such as management information systems (MIS), marketing, and e-commerce. The focus of these studies is varied and may involve issues of human factors and interface design (Otto et al., 2000; Koufaris, 2002; Liang & Lai, 2002; Palmer, 2002), issues of information processing and search strategies (Spence, 1999; Johnson et al., 2000; Xia & Sudharshan, 2000; Chiang et al., 2004), issues of vendor trustworthiness (Grazioli & Jarvenpaa, 2000; Jarvenpaa et al., 2000; Norberg, 2003), or a myriad of other topics. Regardless of the issue being studied, data collection for online Web research often proves to be a vexing problem, and ideal research designs are frequently sacrificed in the interest of finding a reasonable data capture mechanism. In this article, we discuss some of the methodological complexities that arise when conducting Web-based experiments. We then describe an innovative, software-based methodology that addresses these problems.

scholarly journals Geographic Information Retrieval and the World Wide Web: A Match Made in Electronic Space

1997 ◽  
pp. 13-26 ◽  
Author(s):  
David Johnson ◽  
Myke Gluck
Keyword(s):  
Information Retrieval ◽  
World Wide Web ◽  
Information Needs ◽  
World Wide ◽  
Data Retrieval ◽  
Query Languages ◽  
Geographic Information ◽  
Geographic Information Retrieval ◽  
Retrieval Systems ◽  
The World

This article looks at the access to geographic information through a review of information science theory and its application to the WWW. The two most common retrieval systems are information and data retrieval. A retrieval system has seven elements: retrieval models, indexing, match and retrieval, relevance, order, query languages and query specification. The goal of information retrieval is to match the user's needs to the information that is in the system. Retrieval of geographic information is a combination of both information and data retrieval. Aids to effective retrieval of geographic information are: query languages that employ icons and natural language, automatic indexing of geographic information, and standardization of geographic information. One area that has seen an explosion of geographic information retrieval systems (GIR's) is the World Wide Web (WWW). The final section of this article discusses how seven WWW GIR's solve the the problem of matching the user's information needs to the information in the system.

Ontology Learning from a Domain Web Corpus

Web Mining ◽  
2011 ◽  
pp. 69-98 ◽  
Author(s):  
Roberto Navigli
Keyword(s):  
World Wide ◽  
Shared Vision ◽  
Domain Ontology ◽  
Virtual Organizations ◽  
Semantic Interpretation ◽  
Application Domain ◽  
Web Based ◽  
Domain Experts ◽  
Usable Knowledge ◽  
The World

Domain ontologies are widely recognized as a key element for the so-called semantic Web, an improved, “semantic aware” version of the World Wide Web. Ontologies define concepts and interrelationships in order to provide a shared vision of a given application domain. Despite the significant amount of work in the field, ontologies are still scarcely used in Web-based applications. One of the main problems is the difficulty in identifying and defining relevant concepts within the domain. In this chapter, we provide an approach to the problem, defining a method and a tool, OntoLearn, aimed at the extraction of knowledge from Websites, and more generally from documents shared among the members of virtual organizations, to support the construction of a domain ontology. Exploiting the idea that a corpus of documents produced by a community is the most representative (although implicit) repository of concepts, the method extracts a terminology, provides a semantic interpretation of relevant terms and populates the domain ontology in an automatic manner. Finally, further manual corrections are required from domain experts in order to achieve a rich and usable knowledge resource.

Challenges and Issues in Web-Based Information Retrieval System

2017 ◽  
pp. 176-194
Author(s):  
Sathiyamoorthi V.
Keyword(s):  
Information Retrieval ◽  
World Wide Web ◽  
Information Sharing ◽  
World Wide ◽  
Information Retrieval System ◽  
The Internet ◽  
Web Based ◽  
Average Speed ◽  
Great Demand ◽  
The World

It is generally observed throughout the world that in the last two decades, while the average speed of computers has almost doubled in a span of around eighteen months, the average speed of the network has doubled merely in a span of just eight months! In order to improve the performance, more and more researchers are focusing their research in the field of computers and its related technologies. Internet is one such technology that plays a major role in simplifying the information sharing and retrieval. World Wide Web (WWW) is one such service provided by the Internet. It acts as a medium for sharing of information. As a result, millions of applications run on the Internet and cause increased network traffic and put a great demand on the available network infrastructure.

Semantic E-Business Challenges and Directions

2011 ◽  
pp. 1421-1428
Author(s):  
Giorgos Laskaridis ◽  
Konstantinos Markellos ◽  
Penelope Markellou ◽  
Angeliki Panayiotaki ◽  
Athanasios Tsakalidis
Keyword(s):  
Semantic Web ◽  
World Wide ◽  
Business Processes ◽  
Semantic Knowledge ◽  
Web Based ◽  
The World ◽  
Extensible Markup ◽  
Description Framework ◽  
Business Challenges ◽  
Resource Description

The emergence of semantic Web opens up boundless new opportunities for e-business. According to Tim Berners-Lee, Hendler, and Lassila (2001), “the semantic Web is an extension of the current Web in which information is given well-defined meaning, better enabling computers and people to work in cooperation”. A more formal definition by W3C (2001) refers that, “the semantic Web is the representation of data on the World Wide Web. It is a collaborative effort led by W3C with participation from a large number of researchers and industrial partners. It is based on the resource description framework (RDF), which integrates a variety of applications using eXtensible Markup Language (XML) for syntax and uniform resource identifiers (URIs) for naming”. The capability of the semantic Web to add meaning to information, stored in such way that it can be searched and processed as well as recent advances in semantic Web-based technologies provide the mechanisms for semantic knowledge representation, exchange and collaboration of e-business processes and applications.

Interactive Power Point Lesson

2011 ◽  
pp. 463-468
Author(s):  
Melissa B. Holler
Keyword(s):  
World Wide ◽  
Classroom Teachers ◽  
Technology Coordinators ◽  
Web Based ◽  
Internet Explorer ◽  
The World ◽  
Power Point ◽  
Microsoft Office ◽  
K 12 ◽  
Integrated Software

The foundation for much of the technology being used in today’s classroom is the Microsoft Office suite. It is fast becoming the integrated software package of choice for many schools and school districts. Word, PowerPoint, Excel, and Access are the staples for many students and teachers. Complimenting these capabilities, Internet Explorer and Netscape Communicator are the tools of choice for accessing the World Wide Web. Why not help teachers utilize these same tools to develop text, visual, and Web-based materials for the classroom, and leave the more complex and costly packages to multimedia designers and commercial artists? The success of this philosophy has been borne out by a blistering growth in applications from K-12 classroom teachers, technology coordinators, and corporate trainers.

Preparing Tomorrow's Teachers to Use Web-Based Education

2000 ◽  
pp. 129-146 ◽  
Author(s):  
Deborah L. Lowther ◽  
Marshall G. Jones ◽  
Robert T. Plants
Keyword(s):  
Teacher Education ◽  
Preservice Teachers ◽  
World Wide ◽  
Teacher Education Programs ◽  
Education Programs ◽  
Web Based ◽  
Knowledge And Skills ◽  
The World ◽  
The Impact ◽  
Web Based Education

The potential impact of the World Wide Web (WWW) on our educational system is limitless. However, if our teachers do not possess the appropriate knowledge and skills to use the Web, the impact could be less than positive. It is evident, then, that our teachers need to be prepared to effectively use these powerful on-line resources to prepare our children to thrive in a digital society. The purpose of this chapter is to discuss the impact of Web-based education on teacher education programs by addressing the following questions: • How is the World Wide Web impacting education? • Are teacher education programs meeting the challenge of producing certified teachers who are capable of integrating meaningful use of technology into K-12 classrooms? • What is expected of teacher education programs in regards to technology and Web-based education? • What knowledge and skills do preservice teachers need to effectively use Web-based education? • What instructional approaches should be used to prepare preservice teachers to use Web-based education?

Adaptive Web-Based Learning Framework

2011 ◽  
pp. 44-52
Author(s):  
Man-Hua Wu ◽  
Herng-Yow Chen
Keyword(s):  
World Wide ◽  
Learning Systems ◽  
The Internet ◽  
Knowledge Level ◽  
Educational Materials ◽  
Web Based ◽  
Course Content ◽  
Learning Framework ◽  
Web Based Learning ◽  
The World

With the rapid growth of the Internet and the increasing popularity of the World Wide Web, web-based learning systems have become more and more popular. However, in general Web-based learning systems, learners may often get lost in the enormous educational materials (Eirinaki & Vazirgiannis, 2003; Murray, 2002). This kind of situation refers to a disorientation problem. In addition to the disorientation problem, general Web-based learning systems provide every learner with uniform course content and presentation without considering the different knowledge level of learners. Therefore, the course content may be insufficient or unnecessary for learners with different knowledge level. This kind of situation was referred to as cognitive-overhead problem by Murray (2002).

Precursors to Web-Based Methodologies

2004 ◽  
pp. 338-349
Author(s):  
Robert S. Owen ◽  
Bosede Aworuwa
Keyword(s):  
Online Teaching ◽  
World Wide ◽  
Affective Learning ◽  
Web Technology ◽  
Web Based ◽  
Programmed Learning ◽  
Branching Model ◽  
The World ◽  
Basic Ideas ◽  
Teaching Machines

Many of us are using the World Wide Web in ways that are similar to the teaching machines and automatic tutoring devices of the 1950-1960s, yet we are moving ahead without building upon a base of knowledge that already exists from that era. This chapter reviews the basic ideas of the original automatic teaching and tutoring machines of those two decades — a linear programmed learning model and a programmed branching model — and compares these to hypermedia methods that are now enabled via web technology. Some classic ideas in assessing the cognitive and affective learning outcomes of teaching — somewhat analogous to usability issues of utility and likability — are reviewed. Greater emphasis on considering the educational outcomes is advocated when we use new online teaching technologies in programmed instruction.

Sign in / Sign up

Export Citation Format

Share Document