Premium Essay

Thesis Spatial Data

In:

Submitted By singhvib
Words 16962
Pages 68
Distributed Query Scheduling Service:
An Architecture and Its Implementation
Ling Liu and Calton Pu

Oregon Graduate Institute
Department of Computer Science & Engineering
P.O.Box 91000 Portland
Oregon 97291-1000 USA flingliu,caltong@cse.ogi.edu Kirill Richine

University of Alberta
Department of Computer Science
GSB615, Edmonton
T6G2H1 AB, Canada kirill@cs.ualberta.ca Abstract
We present the systematic design and development of a distributed query scheduling service (DQS) in the context of DIOM, a distributed and interoperable query mediation system 26]. DQS consists of an extensible architecture for distributed query processing, a three-phase optimization algorithm for generating e cient query execution schedules, and a prototype implementation. Functionally, two important execution models of distributed queries, namely moving query to data or moving data to query, are supported and combined into a uni ed framework, allowing the data sources with limited search and ltering capabilities to be incorporated through wrappers into the distributed query scheduling process. Algorithmically, conventional optimization factors (such as join order) are considered separately from and re ned by distributed system factors (such as data distribution, execution location, heterogeneous host capabilities), allowing for stepwise re nement through three optimization phases: compilation, parallelization, site selection and execution. A subset of DQS algorithms has been implemented in Java to demonstrate the practicality of the architecture and the usefulness of the distributed query scheduling algorithm in optimizing execution schedules for inter-site queries.

Keywords: Distributed and Cooperative Information System, Distributed Query Scheduling, Distributed Heterogeneous Information service.

1

1 Introduction
Over the last few years the

Similar Documents

Premium Essay

Business Development Planning

...Providing resources for staff and students in higher and further education in the UK and beyond Business Development Plan 2009–2012 EDINA is a JISC National Datacentre Table of Contents 1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. MISSION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 3. VALUES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 4. CONTEXT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 5. BUSINESS PLAN FOR 2009–2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Strategic goal 1: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 To provide added value, high quality services, leveraged by research, enhancement activity and engagement with others Strategic theme 1a: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7 Providing a managed portfolio...

Words: 9567 - Pages: 39

Free Essay

Fire in Dhaka City

...Thesis Title: Fire Hazards in Dhaka City: An Exploratory Study Introduction Whereas, Dhaka, the capital city of Bangladesh has grown up haphazardly since the period of liberation creating the embryo of fire hazard and resulting into death, injuries as well as property damage. In fact, fire incidents have been recognized significant cause behind the greatest loss of life and property in Dhaka city. At present, Dhaka city is crowded with estimated population of more than 15 million people (Source: wikipedia), making one of the largest cities in the world having population density of 45,000/km2 or 115,200/sq mile (Source: wikipedia). With the passage of time, this ratio of density is ever increasing. Due to climate change issue, rural people are migrating to Dhaka city with an expectation of having least required livelihood. To meet up the need for habitation of these migrated people, more and more slums are being established without following any rules and plans. Unplanned city growth has also lead to the development of congested and unhealthy slums that are generally built with flammable materials. As a result, in the event of a fire, the fire spreads very rapidly causing great damage. There are many people in the city who lack knowledge about the safety or precautionary measures one should take to prevent a fire incident at their home or workplace. In addition, not many people also have proper knowledge or training about the preventive measures that the community should take...

Words: 1747 - Pages: 7

Free Essay

Mup Syllabus

...Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India Syllabus of Master of Urban Planning [MUP] Programme |FIRST SEMESTER | |NO. |SUBJECT |L. |T. |S. |Units | |MUP1101 |History of Human Settlement & Planning Principles |3 |0 |0 |1.0 | |MUP1103 |Housing & Community Planning |3 |0 |0 |1.0 | |MUP1105 |Planning Theory and Techniques |3 |0 |0 |1.0 | |TRS1017 |GIS with introduction to Remote Sensing |3 |0 |0 |1.0 | | Sessional / Laboratory subjects | |MUP1102 |Planning Studio / Workshop I (With Field study) |0 |0 |12 |1.5 | |MUP 1104 |Urban Design |0 |0 |4 ...

Words: 6033 - Pages: 25

Premium Essay

Journal 1

...abbreviations. I really do not like writing, but if I have to then I will. With this class, I know I have to write and I’m willing to, but I might take longer writing in third person then first person with a topic I’m not familiar with. I am great at looking at a picture and can write a story based it. I feel comfortable writing in the English class as long as I have the time to write and think about my steps needed to write the paper. Inventory: When I took that quiz, I felt that is was accurate based on who I am. I was between being independent and social. I usually am social when I need to be but mostly independent. I was closely related to creative but was also close to pragmatic. Spatial had a five for a score. I am usually looking at the data and using it the way I think it works. I had a score of six for rational, I also had a score of five for concrete. My rational skills are high, and I think I would work on being more emotional about things that need it for writing. I believe that being concrete is good but being abstract is also a good thing. It gives the writer the big picture of their writing for a reader. September 30, 2015- ENTRY 2: THE ROLE OF CORRECTNESS IN WRITING Errors found in writing by the reader can confuse the reader. The writer needs to keep...

Words: 2015 - Pages: 9

Free Essay

Tjdgsa Lmlokmak Dkaskm

...exist already. Typically such standards tend to be specialised for certain applications or domains leaving only a few representing general-purpose multimedia description. As of today, the MPEG-7 seems to be recognised as the most complete general-purpose description standard for multimedia. Whether the MPEG-7 multimedia description standard qualifies as an appropriate general-purpose description standard and is compliant with the requirements of such a standard is a discussion beyond the scope of this thesis. MPEG-7 is an ISO/IEC (International Standards Organization/International Electro-technical Committee) approved standard developed by MPEG (Moving Picture Expert Group), a working group developing international standards for compression, decompression, processing, and coded representation of audio-visual data. The standard was initialised in 1996 and it represents a continuously evolving framework for standardising multimedia content description. In the context of this thesis the proposed MPEG-7 standard represents an assessment and basis for evaluation of a general MIRS’ ability to adequately, according to the standard, describe image-media content applied in a digital museum context. The following review of the MPEG-7 standard is based on MPEG-7 documentation (2003) and is merely intended to provide an overview of the standard and to emphasise the image- media specific descriptive...

Words: 4161 - Pages: 17

Premium Essay

Geographic Information Systems

...the EntityRelationship model for the needs of conceptual modeling of geographic applications, called the Geo-ER Model, is presented. Handling properties associated to objects not because of the objects’ nature but because of the objects’ position, calls for dealing -at the semantic modeling levelwith space, location and dimensionality of objects, spatial relationships, space-depending attributes, and scale and generalization of representations. In order to accomplish this in the framework of ER and its derivatives, we introduce special entity sets, relationships, and add new constructs. The rationale as well as examples of usage of the Geo-ER model from actual projects are presented. 1. Introduction Is everybody special or are we all alike? Should we develop applications according to a special methodology for each class of applications, such as medical, business process and geographic, or should we use a single blanket approach for all? Personal preferences and philosophical discussions aside, it does seem that the general purpose side has won most battles in computer science, from hardware to programming languages to relational data models. On the other hand, successful special-purpose tools do exist, from signal processors to web browsers, and in any special case the decision is an engineering one, balancing the additional productivity stemmed from the special crafted tool versus the extra effort of developing, disseminating and learning how to use one. One successful method...

Words: 4100 - Pages: 17

Free Essay

Chapter1

...ElysiumaazSAA Z: A Proposed Medical Health Care & Research Facility An Institutional Eacility that Emphasize on Hospital & Research Facility A Thesis Proposal Presented to the College of Architecture Adamson University In Partial Fulfillment Of the Requirements of the Degree Bachelor of Science in Architecture By Hadrian Paul Nituma Lacaba MARCH 2016 ACKNOWLEDGEMENT This section is to give credit to academic staff in your department and in other departments, institutions, organizations or companies, funding bodies, and individuals (Past students, Family *, Friends *) who have been of help during the project, for instance by supporting it financially or by giving feedback on the text during its composition and revising stages. Acknowledgements contain the following elements:  * Full name of all individuals who are being thanked. * A brief statement as to what kind of help the writer has received from each individual, group of people, scholarship, etc. colleague * If you wish to acknowledge the help of family members or friends make sure you restrict the wording of your thanks to a relatively formal register. ABSTRACT This section is limited to 100-150 words (approximately 12-15 lines), singly spaced and must include at least four (4) keywords. Provide a brief overview of the proposal that gives a reader a basic understanding of your proposal and encourages her or him to read more...

Words: 5023 - Pages: 21

Premium Essay

Klgo Environmental Anthropology

...Theory This thesis expands on the theoretical understandings of environmental archaeology and climate change driven landscapes. An understanding of environmental archaeology and climate change assists in the heritage management at KLGO and throughout the national park system. Incorporating biological, ecological, and geological sciences with applied anthropological investigations remains necessary in understanding the research conducted at KLGO. I use environmental archaeology and climate change theories to understand past environments and people’s interactions with their environment, examine impacts to archaeological sites, prepare preservation plans and develop future monitoring plans using comparative data, conduct archaeological inventories,...

Words: 520 - Pages: 3

Free Essay

Capacoty Analysis

...communications” A THESIS SUBMITTED FOR PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF Bachelor of Technology In Electronics and Communication Engineering Under the guidance of Prof. Poonam Singh Completed by: Sunil Gautam Panda (108EC003) Birupaksha Bhattacharjee (108EC031) National Institute of Technology, Rourkela 2008-2012 CERTIFICATE This is to certify that the thesis entitled “Capacity analysis of underwater acoustic MIMO communications” submitted by Mr. Sunil Gautam Panda and Mr. Birupaksha Bhattacharjee for partial fulfilment for the requirement of Bachelor in Technology degree in Electronics and Communication Engineering at National Institute of Technology, Rourkela is an authentic piece of work carried out by them under my guidance and supervision. To the best of my knowledge, the matter in this thesis has not been submitted to any other University / Institute for the award of any Degree. Prof. Poonam Singh Department of Electronics and Communication National Institute of Technology, Rourkela Date: ACKNOWLEDGEMENT It would not have been possible to complete and write this project thesis without the help and encouragement of certain people whom we would like to deeply honour and value their gratefulness. We would like to highly appreciate the constant motivation and encouragement shown by our supervisor and guide Prof. Poonam Singh, Department of Electronics and Communication Engineering during the project and writing of the thesis. Without...

Words: 6556 - Pages: 27

Free Essay

Sustainable Facility Management

...information about the client.(would be provided by the saxion research center) The reason for the thesis project and the relevance of the thesis for the client: This thesis seeks to identify how to incorporate sustainability into facility management at Saxion by identifying the needs of international students residing at the University’s accommodation facilities. This thesis will advise Saxion director of facility management on how to incorporate sustainability in its facility management practices in order to minimize life-cycle costs of assets, preserve the environment, and better the lives of employees and other stakeholders such as students, teachers and suppliers. Project objective formulation: The facility management process at Saxion University has no sustainability component associated with it. However, the facility management profession has reached a stage in which sustainability is indispensable. Therefore Saxion University will like to know how to incorporate sustainability into its facility management process. This thesis is to help gain insight, identify, and understand the barriers and gaps which inhibit the inclusion of sustainability in current facility management at Saxion University as well as to provide foundational information on how sustainable facility management can be designed for people from different cultures (international students). Findings from this thesis will form the basis of recommendations to the Saxion facility management directorate. Some of...

Words: 3918 - Pages: 16

Premium Essay

What

...CHAP TER Rhetorical Modes 1. NARRATION L E A R N I N G O B J E C T I V E S 10 1. Identify the purpose and structure of narrative writing. 2. Recognize how to write a narrative essay. Rhetorical modes simply mean the ways in which we can effectively communicate through language. This chapter covers nine common rhetorical modes. As you read about these nine modes, keep in mind that the rhetorical mode a writer chooses depends on his or her purpose for writing. Sometimes writers incorporate a variety of modes in one essay. In covering the nine rhetorical modes, this chapter also emphasizes these as a set of tools that will allow you greater flexibility and effectiveness in communicating with your audience and expressing your ideas. rhetorical modes The ways in which we effectively communicate through language. 1.1 The Purpose of Narrative Writing Narration means the art of storytelling, and the purpose of narrative writing is to tell stories. Any time you tell a story to a friend or family member about an event or incident in your day, you engage in a form of narration. In addition, a narrative can be factual or fictional. A factual story is one that is based on, and tries to be faithful to, actual events as they unfolded in real life. A fictional story is a made-up, or imagined, story; the writer of a fictional story can create characters and events as he or she sees fit. However, the big distinction between factual and fictional narratives is based on a writer’s purpose...

Words: 14947 - Pages: 60

Premium Essay

Retail Location Analysis - Mc Donald's vs Burger King

...Retail Location Analysis: A Case Study of Burger King & McDonald’s in Portage & Summit Counties, Ohio A thesis submitted to the College of Arts of Kent State University in partial fulfillment of the requirements for the degree of Masters of Arts by Niti Duggal December, 2007 Thesis written by Niti Duggal B.A. (Hons), University of Delhi, India 1996 M.A., Jawaharlal Nehru University, New Delhi, India 1998 MPhil, Jawaharlal Nehru University, New Delhi, India 2001 M.A., Kent State University, 2007 Approved by ____________________________________, Advisor Dr. Jay Lee ____________________________________, Chair, Department of Geography Dr. Jay Lee ____________________________________, Dean, College of Arts and Sciences Dr. Jerry Feezel ii Table of Contents Table of Contents ……………………………………………………………….. iii List of Maps and Figures …………………………………………….………….. v List of Tables …………………………………………………………………… viii Acknowledgments ……………………………………………………………… ix Chapter 1: Introduction …………………………………………………………..…… 1 1.1 Research Objectives ............................................................................ 2 1.2 Summary …………………………………………………..…..……. 4 2: Problem Statements ………………………………………………...……. 6 2.1 Size and Shape of the Retail Trade Area………….……………....…. 6 2.2 Summary………………………………………..………………...….. 9 3: Literature Review ………………………………………………………… 11 3.1 GIS for Business and service Sector Planning ……………………….11 3.2 GIS as a Tool for Retail Location Decisions………………………...

Words: 27776 - Pages: 112

Premium Essay

Ikea - When Brand Meets Space: a Study of Customers' Perception Onto Ikea's Spatial Configuration as a Branding Blueprint

...1.0 – INTRODUCTION 1.1 –INTRODUCTION The chapter provides a radius of the background of study at hand into deducing the problems or issues that encompass it. Next to that, will be a statement of the aim as well as the objectives of this study in order to comprehend the matter in more depth as well as a succinct overview of the following chapters. 1.2 – BACKGROUND OF STUDY Human civilization is dependent upon signs and systems of signs, and the human sign is inseparable from the functioning-if indeed mentality is not to be identified with such functioning (Morris, 1938). A brand instead, is a promise of satisfaction. It is a sign as well nevertheless, a metaphor operating as an unwritten contract between a manufacturer and a consumer, a seller and a buyer, a performer and an audience, an environment and those who inhabit it, and event and those who experience it (Healey, 2008). Even so, too often companies think of the brand experience in silos: as an identity, logo, website, advertisement, and so on. To be successful, a brand had to be experienced whole – emotionally and tangibly – telling a consistent and engaging story at every tower point along the way (Astorino, 2011). A successful brand positively and clearly distinguishes a company’s products and services from those of its competitors. Statistics confirm that higher quality brands gain greater market share and profitability than their inferior competition (MacDonald, 2012). As the economy of late capitalism shifted from...

Words: 9284 - Pages: 38

Premium Essay

Effects of Social Networking Sites

...Writing a research report The following is a general guide to writing a research report focused on GIS, spatial analysis, or modeling. See the general resources page for other guides for writing and research. This presents some standard conventions for writing journal articles but highlights where you may want to make changes for a class report or thesis. Journal article. The 'standard' format used by most journals is a bit restrictive because it reflects traditional publishing practices. Figures and tables, for example, are usually attached as separate pages at the end of your text instead of being embedded in the text itself because it is easier to photograph them for publishing and the text itself is easier to typeset. Class report. Class reports are less restrictive in form and content than journal articles but they still share many characteristics. Conventions such as line double spacing and use of 12 point serif fonts like Times New Roman are designed to make it easier for your reader to review the paper and provide annotations where necessary. Take special notice of the "Top 10 Checklist" as these are items that are particularly important for class reports. Quick Links: Report structure General Considerations Top 10 Checklist References Report Structure The paper should be divided into sections that make the logical sequence of the argument clear. Common sections are described below. Treat these as what they are, suggestions. Some things, like the...

Words: 1410 - Pages: 6

Premium Essay

Employee Performance Literature Review

...Table 2‑1: Summary of major empirical studies on employee performance No Author/s Variables Methodology Major findings thesis Thesis statement 1 K.Chandraseker(2011) Dependent variable Employee performance Independent variable Physical aspect and job factor Research work as a descriptive research of primary data and secondary data, researcher used the stratified random sampling method, the questionnaire was carefully constructed and properly setup. The workplace environment impacts employee morale, productivity and engagement both positively and negatively Workplace environment and its impact on organizational performance in public sector organizations 2. LeTran Thao(2002) Dependent variable Employee performance Independent variable Leadership,...

Words: 949 - Pages: 4