Thesis Abstract

Geographical Information Retrieval System (GIRS) is a system that allows users to search for and retrieve location-based information from large databases. This research focuses on developing an advanced GIRS that integrates various technologies to enhance the efficiency and accuracy of information retrieval processes. The GIRS utilizes Geographic Information Systems (GIS) to store and manage spatial data, enabling users to perform spatial queries and analysis. By combining GIS with information retrieval techniques, the system can retrieve relevant geographic data based on user queries. The integration of Geographic Information Retrieval (GIR) methods enhances traditional information retrieval systems by considering spatial context in the search process. One of the key components of the GIRS is the spatial indexing mechanism, which organizes geographical data for efficient retrieval. Spatial indexing structures such as R-trees and Quad-trees are commonly used to represent spatial relationships among geographic objects. These indexing techniques enable the system to quickly locate relevant data based on spatial proximity, reducing query processing time. To improve the accuracy of information retrieval, the GIRS incorporates relevance feedback mechanisms that allow users to provide feedback on search results. By analyzing user feedback, the system can refine search queries and deliver more relevant information in subsequent searches. This iterative process enhances user satisfaction and ensures that retrieved information aligns with user preferences. Furthermore, the GIRS integrates natural language processing techniques to interpret user queries and extract geographic information effectively. By analyzing user input, the system can identify location-based keywords and retrieve relevant spatial data. Natural language processing algorithms enhance the system's ability to understand user intent and provide accurate search results. Moreover, the GIRS incorporates visualization tools to present retrieved information in a user-friendly manner. By visualizing geographic data through maps, charts, and graphs, users can better interpret and analyze spatial information. Visualization enhances data exploration and decision-making processes, enabling users to derive meaningful insights from retrieved information. In conclusion, the development of a Geographical Information Retrieval System offers numerous benefits in retrieving location-based information efficiently and accurately. By integrating GIS, GIR, spatial indexing, relevance feedback, natural language processing, and visualization techniques, the GIRS enhances the overall information retrieval experience for users. This research contributes to advancing GIRS technology and improving the accessibility of geographic information for various applications.

Thesis Overview

INTRODUCTION
1.1 BACKGROUND OF STUDY
According to Chang, K. T. (2008), Geographic Information Retrieval System
(GIRS) is a system designed to capture, store, manipulate, analyze, manage and
present all types of geographical data. The acronym GIRS is sometimes used for
geographical information science or geospatial information a study which refers to
the academic discipline or career of working with geographic information system.
In simplest terms GIRS is the merging of cartography, statistical analysis and
database technology.
A geographical information retrieval system can be thought of as a system which
digitally creates and manipulates spatial areas that may be jurisdictional, purpose
or application- oriented. Generally, a GIRS can be custom designed for an
organization. Hence, a GIS developed for an application jurisdiction, enterprise or
purpose may not be necessarily interoperable or compatible with a GIRS that has
been developed for some other application, jurisdiction, enterprise or purpose.
What goes beyond a GIRS is a spatial infrastructure, a concept that has no such
restrictive boundaries.
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In general sense, the term GIRS describes any information system that integrates,
stores, edits, analyzes, shares and displays geographic information for informed
decision making. GIRS applications are tools that allow users to create interactive
queries (user – created searches), analyze spatial information, edit data in maps and
present the result of all these operations. Geographic information science is the
science underlying geographic concepts, applications and systems.
The link between geography and information technology can not to a very large
extent be over- emphasized.
Using Enugu State tourism board as a case study has helped to give a
comprehensive understanding of the importance and the need of a geographic
information system, as it is believed, information technology has a significant role
in geographic information system and high level of expectations would and is
already being demanded from its use both in Nigeria and the world at large.
1.2 STATEMENT OF THE PROBLEM
In our daily lives as humans, most of our endeavors involve moving from one
location to another for one thing or the other. A problem emerges when there is no
proper direction or a system as to give accurate direction in locating our
destination, what the said destination contains and what is has to offer. This is the
problem the state has as concerning tourism, whereby a good number of tourists
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(most especially tourists visiting for the very first time) and other individuals
wanting to visit tourist sites in the state but cannot do so because of the lack of a
well detailed system to provide them (tourists) with an accurate geographic
information system as to how to locate these sites within the state.
Due to the lack of an accurate geographic information retrieval system as far as
tourism is concerned, most tourists are discouraged from exploring these tourist
locations within the state, this in turn hampers the positive impact that tourism is
meant to have on the development in the state and the Nigerian society at large.
1.3 OBJECTIVES OF THE STUDY
1. To examine the existing / current system in regards to how geographic
information for tourism is provided for tourists in and outside the state.
2. To improve on the already existing system by designing a geographic
information retrieval system that is well detailed and easily accessible.
3. This study also seeks to help in broadening the scope of tourism in the state
through providing a comprehensive geographic information retrieval system.
1.4 SIGNIFICANCE OF THE STUDY
The significance of this study is to show that a link between geography and other
professions can be created on the platform of information technology. i.e. to show
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that with information technology the problem of location can and is solved to a
very large extent.
1.5 SCOPE OF STUDY
The scope of this study is limited to tourist locations and hotels within the state
using the Enugu state tourism board as a case study in view of providing /
improving on the existing geographic information system of the board for tourism
in the state.
1.6 LIMITATIONS OF THE STUDY
Time was a major constraint faced during the research for this project work and
limited the effort in developing a much more comprehensive package needed in the
design and implementation of the geographic information retrieval system.
1.7 DEFINITION OF TERMS
GEOGRAPHY: Geography is a science that deals with the distribution and
arrangement of all elements of the earth‟s surface. The word geography was
adopted in the 200s BC by the Greek Scholar Eratosthenes and means „earth
description.‟
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INFORMATION SYSTEM: An information system can be defined technically as
a set of interrelated components that collect (or retrieve), process, store and
distribute information to support decision making and control in an organization.
GEOGRAPHIC INFORMATION RETRIEVAL SYSTEM: A “geographic
information system” (GIRS) is a computer-based tool that allows you to create,
manipulate, analyze, store and display information based on its location
LOCATION: The position, site or sitting of somebody or something.
MAP: A diagrammatic drawing of something such as a route or area made to show
the location or how to get there.
TOURISM: Travel to benefit from a particular service or activity that is
unavailable at home.
COMPUTER : An electronic device that can accept data/ information inform of
input , process the data /information in order to produce an output and also has the
capability to store the information for future use.
DATA: Data refers to raw or unprocessed information.
SOFTWARE: This is the logically written instruction that controls the operations
of the hardware.
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HARDWARE: This is the physical components of computer system and other
geographic tools or devices.
DATABASE: This is the collection of related data/ information stored mostly in a
central location.
COMPUTER AIDED DESIGN (CAD): Software programs for the design,
drafting and presentation of graphics. Originally designed for manufacturing and
drawing, now also widely used for mapping.
OPERATING SYTEM: A series of computer programs which control the
operations of the computer itself. Application programs such as GIS software run
under an operating system. Examples of operating system include UNIX, VMS,
DOS etc.