Privacy Supportive Geo-Location Search Software

  • Devika BV

1 Introduction

1. 1 Purpose

The purpose of this file is to provide a detailed information of the Finding Service Similarity with Level of privacy using queries. It'll explain the purpose and features of the machine, the interfaces of the system, what the machine will do, the constraints under which it must operate and how the system will react to external stimuli.

1. 2 Document Conventions



Location Centered Search

Search the neighboring factors of interests by custom query

Software Requirements Specification

A doc that completely details every one of the functions of your suggested system and the constraints under which it must operate. For instance, this document.


End users who utilize this web application

Location Privacy

The details pertaining to the entity with mobile device. Seeking the current location of a user needs to be kept private.

Service Quality

Quality metrics that measures the service sent to an entity, in general. The metrics has distinct goal and the ratio is determined with the real delivery.

1. 3 Product Scope

This web software is chosen for an academic study and execution. Location-based applications make use of the positioning capabilities of an mobile device to look for the current location of your user, and customize query results to include neighboring details of interests. However, location knowledge is often regarded as personal information. One of the immediate issues hindering the vast approval of location-based applications is having less appropriate methodologies offering fine grain personal privacy adjustments to a end user without vastly impacting on the usability of the service.

In specific, the following are the efforts towards this project.

  1. A novel architecture for LBS applications that is aimed towards revealing privateness/utility trade-offs to a individual before a genuine geo-tagged query is manufactured.
  2. A proof-of-concept design for a privacy-supportive local search location centered search.

1. 4 References

Exploiting Service Similarity for Level of privacy in Location Based mostly Search Inquiries Qin Liu, Guojun Rinku Dewri, Member, IEEE, and Ramakrisha Thurimella


"Supporting Anonymous Location Concerns in Mobile Surroundings with Level of privacy Grid, "in Proceedings of the 17th International INTERNET Conference, 2008, pp. 237-246.

B. Bamba, L. Liu, P. Pesti, and T. Wang

2. Overall Description

This section will give a synopsis of the whole system. The machine will be explained in its framework to show the way the system interacts with other systems and present the basic operation of it. It will also describe which kind of stakeholders that will use the system and what features is available for every single type. At last, the constraints and assumptions for the system will be shown.

2. 1 Product Perspective

To commence with, this is an extremely dynamic principle. Usability has a twofold meaning a) privacy control buttons should be intuitive yet versatile, and

b) the designed purpose of an application is fairly maintained

It is worth mentioning that a separate type of research in analyzing anonymous location traces has revealed that user locations are heavily correlated, and knowing a few frequently went to locations may easily identify the user behind a certain track. The privacy breach in these cases occurs because the location to identity mapping results in a violation of customer anonymity. The machine attempts to avoid the reverse mapping-from user identification to user location-albeit in a user-controllable manner.

2. 2 Product Functions

Mobile search is an evolving branch of information retrieval services that is devoted to the convergence of mobile websites and cell phones, or that it can be used in order to information about something and other cellular devices. Web internet search engine capability in a mobile form allows users to find mobile content online which can be found to cellular devices on mobile sites. The first component is to build a mobile search engine with ranking based mostly approach to get results with regards to the localized position of the user. Geo-tagging is a function, where devices can insert metadata with physical information (coordinates) into a file such as photo, associating it with the geographic location it was used at.

In response to this first query period, an individual obtains a service-similarity profile. This account is a representation of the similarities in the query end result at different geographic locations. The precise form considered by this account, as well as the data structures employed in computing this profile, may vary from application to application. A location movement engine on the user side then decides a noisy location to utilize predicated on the user's privacy profile and the retrieved service-similarity profile.

What is private and what's not private should be actually identified prior to the query has been raised, this helps the result set not to include those details that are private to an individual and thus it could not be shared by the application.

The service-contour inferencing is not only a assortment of positions, but includes additional information about the businesses located at those positions such as labels, addresses, categories, subcategories. On top of that, some specific ideals such as feedback score, the whole profile of the entity with personal information, so on and forth.

The following may be the modules for this project:

  1. Login/Register module
  2. Search results by standing module
  3. Similarity profiler service module
  4. Service-contour inferencing module

2. 3 User Classes and Characteristics

The consumer is expected to be Internet literate and also register/login and know how to seek out information from the machine. The user is likely to know how to provide information. The software, however, provides easy access to all these, nonetheless, an individual needs to know the fundamentals to use and get the best results. An individual is likely to be Home windows literate and be able to use button, pull-down selections, and similar tools.

There are two types of users who are able to interact with the machine: 1. The registered users who will get access to information of the businesses for a particular location; 2. The business owners who may obtain personal information regarding the user at a specific location.

2. 4 Operating Environment

The pursuing Hardware settings is expected to smoothly implement the job.

Processor - Pentium V or above

Speed - 2. 1 GHz or above


Hard Drive - 60 GB

Key Plank - Standard Glass windows Keyboard

Mouse - Two or Three Button Mouse

Monitor - SVGA

The pursuing Software construction is likely to smoothly execute the task.

Operating System : Window 7 or above

Language : C# (. NET Language)

Front End : Visible Studio 2010

Database : SQL Server/Express

Web Server :Internet Information Server (IIS 6. 0)

2. 5 Design and Execution Constraints

Since the application searches data from the data source server, it is very important that there is a good bandwidth/good system learning resource for the application form to function. Data-base search can be laborious whenever we have larger-data to be performed.

2. 6 Assumptions and Dependencies

One assumption about the emulator product is that it'll be always be used with web connection, since it has to collect information about a random end user moving from the API's. Additionally it is assumed that the web connection is stable during these trades. If not high, a moderate speed must operate with the machine.

Another assumption is the fact because the API's are third-party services, this may go down or may well not work as expected sometimes. However, the assumption is that the down-time may well not be longer enough to disrupt the working in our emulators.

2. 7 System Environment







3. External Program Requirements

This section offers a detailed description of most inputs into and outputs from the system. It also gives a description of the hardware, software and communication interfaces and provides basic prototypes of the user interface.

3. 1 User Interfaces

A first-time customer of the mobile application should start to see the log-in web page when user starts the application form. If the user has not signed up, they must be able to do that on the log-in web page. Make reference to Fig. 2. If the user is not a first-time user, they must be able to see the latitude and longitude information where in fact the end user is current located, see Number 3. On selecting the user destination, the arbitrary motion is simulated and reported by the system.

Fig. 2. Login Screen Fig. 3. Current Location Fig. 4. Random End user Movement



3. 2 Hardware Interfaces

No exterior hardware devices are anticipated to be used in this task. A system with Windows OPERATING-SYSTEM running onto it should be fine to run the web software.

3. 3 Software Interfaces

Windows Operating System (OS) XP or 7. 0, SQL Server/Express will be utilized for the data source storage space. Multiple API's and JavaScript's would be utilized in this job. There may be some usage of the web services (as relevant).

3. 4 Communications Interfaces

The communication between different parts of the system is important given that they depend on each other. However, in what manner the communication is achieved is not important for the system and is therefore taken care of by the underlying os's and the data source for both the cloud and the web application.

4. System Features

4. 1 Login/Enrollment Module

The user can register or login (if already a member) from the mobile emulator. The login/register module helps an individual to locate his geo location and will be in a position to view the businesses/services surrounding the user. The system will also ensure that the privacy details of the user are distributed only what's made "Public" or "Private" by the user. Modifications to the sensitive information are provided to an individual by the system.

4. 2 Search results by standing module

In general, a local search program provides home elevators local businesses, happenings, and/or friends, weighted by the positioning of the query issuer. Location and service precision trade-offs are evidently present in an area search LBS. A privacy-supportive version is therefore

well-suited for this application category. Local serp's tend to circuit through periods of plateaus and slight changes as you moves from a given location. The plateaus provide strategies for leisure in the positioning accuracy without impacting service accuracy, as the modest changes allow one to assess accuracy and reliability in a continuing manner.

Given a search term (e. g. common ones such as "cafes", and targeted ones such as "starbucks

coffee") and a highly generalized end user location (e. g. the metropolitan city), the privacy-supportive Pounds generates a concise representation of the variance in the 10-nearest neighbor end result arranged as a hypothetical user moves across the large metropolitan area. Once the representation is communicated to the user, he/she can infer the geographic variability that may be unveiled in her location coordinates to get all or a subset of the result set.

4. 3 Similarity profiler service module

This profile is a representation of the similarities in the query result at different geographic locations. The exact form considered by this profile, as well as the data structures employed in computing this profile, may vary from program to application. A spot perturbation engine unit on the user side then can determine a noisy location to make use of based on the user's level of privacy profile and the retrieved service-similarity profile. The LBS processes the query with respect to the loud location.

4. 4 Service-contour inferencing module

The result establish from the query is not simply a collection of positions, but includes additional features about the firms located at those positions. This could range from labels, addresses, categories, subcategories, to details such as value, feedback scores, and whole profiles of individuals with personal information. The standing function is often a well-guarded business top secret about how these characteristics are blended. Another approach is to send a set of similarity matrices to an individual, one each corresponding to a particular co-ordinate in the grid. The way requires the computation and transfer of an inordinate amount of information.

5. Other Nonfunctional Requirements

5. 1 Performance Requirements

The requirements in this section give a detailed specification of the user interaction with the web software software and measurements put on the machine performance. The machine which this client program runs should have installed. NET construction 2. The next software(s) must be installed for easy execution of the project.

  1. Visual Studio room 2012
  2. IIS Web Server/Service
  3. SQL Server database
  4. Browser application such as WEB BROWSER / Mozilla / Google Chrome
  5. Windows Mobile Emulator
  6. Windows operating-system with wired or cellular internet connection

5. 2 Safety Requirements

All care and attention should be studied to ensure that at any point there is no bargain on the safety requirement through the process of building/executing this project. At the moment, there is none of them that requires serious thought.

5. 3 Security Requirements

Database should be password-protected. The system should allow access to users only with a login credentials.

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