Privacy preserving and obscure delicate data with collaborative tagging

IJRET: International Journal of Research in Engineering and Technology eISSN: 2319-1163 | pISSN: 2321-7308
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Volume: 03 Issue: 10 | Oct-2014, Available @ http://www.ijret.org 239
PRIVACY PRESERVING AND OBSCURE DELICATE DATA WITH
COLLABORATIVE TAGGING
A Divya1
, S Madhu Sudhanan2
, M Poornima3
1
PG scholar, Computer science and engineering, Prathyusha institute of technology and management, Chennai, Tamil
Nadu
2
Assistant professor, Computer science and engineering, Prathyusha institute of technology and management,
Chennai, Tamil Nadu
3
Assistant professor, Computer science and engineering, Prathyusha institute of technology and management,
Chennai, Tamil Nadu
Abstract
Tagging system is one of the most diffused and popular services available online. This system allows users to add free text labels
generally referred as tags to the Internet resources for example web pages, images, video, music and even blogs. Web metadata
have a potential to improve search, retrieval and to protect end user from possible harmful content. The Organization updates
their Company portal with public sharing data along with Sensitive data. The query is processed based on the User Profile
Analysis. In actual system provide taxonomy of tagging system and system web technologies help to specify labels and rate for
that labels which assess the trustworthiness of resources to enforce web access personalization. To enhance the efficiency of tag
suppression the privacy ensured skim with Support Vector Machine along with Privacy Enhancing Technology is implemented.
SVM is used for extraction of data and obscure delicate data. PET is achieved by using the technique Tag Suppression which has
the role of providing the privacy for information. Web user will search using a keyword. The keyword may be the location,
feedback or cost to analyze the data. The authentication of the portal is done by the management. Management classified as two
roles they are Department Head Role and Admin. Department Head Role is to update their part of portal and retrieve only the
corresponding data. Final authentication and approval is done by the admin. Through the analysis efficiency guarantees of
proposed scheme is achieved.
Keywords: Collaborative tagging; Privacy enhancing technology; tag suppression; Support vector machine;
unsupervised duplicate detection.
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1. INTRODUCTION
A system of segregating derived from the tradition and
method of collaboratively constitutes and transcribes tags to
annotate and categorize content notorious as collaborative
tagging. A social Bookmarking service is centralized online
services which facilitate users to add, annotate and share
bookmarks of web documents. Tagging is a compelled
feature of social bookmarking systems, empowering users to
organize their bookmark in malleable ways and develop
shared vocabularies noted as folksonomy [3]. The availability
of metadata describing web resources has been considered as
a controversy in a public information space. Taxonomy is the
designations according to pre regulate system, whose
catalogue is to provide a conceptual framework for analysis.
The development of taxonomy brings into account of
separating aspect of group into sub groups that includes all
possibilities. Folksonomy has little do with taxonomy which
influence the key to developing a semantic web, in which
every web page contains machine readable metadata that
describes its content which improve the precision in retrieval
list.
A perception to use metadata is to protect users from
inappropriate content [5]. Despite collaborative tagging is
vital handling to support tag based resource discovery and
browsing data, also exploited for other objective. The tags are
compiled by social bookmarking services can be exploited to
enhance web access functionalities like trustworthiness based
on preferences specified by user. These issues can be
achieving by collaborative environment and semantics web
technologies [5]. The devise mechanism is to assess the
trustworthiness of web metadata with the availability of
WBSN (Web Based Social Networks) providing their
availability of specifying and sharing metadata. Extending
collaborative tagging by incorporating a policy layer to
protect the information which available in the social services.
This can be prior by analyzing multi-layer incorporate with
collaborative tagging.
Fig 1 Technique enables to protect the privacy by refraining
From Tag suppression to separate the normal data from
Sensitive, Can be visible only to permitted authorities.

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The area of social tagging system portrays two organizational
taxonomies flourished by analyzing and comparing design
and feature of the system. System design and attributes
greatly touch the nature and distribution of tags and the
system collects the attributes of information. User incentives
are the form of contribution will touch the characteristics [4].
Privacy protection in social tagging is an issue which is
measured by Shannon entropy and model of their apparent
user profile as PMF over categories of interest [26]. Privacy
ensured skim with Support Vector Machine (SVM) for
extraction of data and obscure delicate data with Privacy
Enhancing Technology (PET), namely Tag suppression used
to protect the privacy separate the normal data from sensitive
data (see Fig. 1). The exploratory of privacy protection can
assess the impact of PET (Privacy Preserving Technologies)
namely Tag suppression. Collaborative Tagging is extended
as effective keywords for fetching the link and authority can
add keywords to get the suggestion from users for accessing
the sensitive data.
The approach protects user privacy to a certain extent, by
dropping those tags that make a user profile views toward
certain category of interest. The keyword based on category
can be skim by support vector machine where classified data
are achieved. Along with classified data, duplicate data are
also available. To evacuate the duplicate data in the classified
data can be achieved by UDD. Unsupervised data are not
assumed the labels where twin data are removed using the
Unsupervised Duplicate Detection.
More precisely, architecture is built which consists of
additional services. The user specifies their resources of
interest based on query are processed before that
authorization has been performed. Using collaborative
tagging for the Query analysis model for ease of data
retrieval and extended as effective keywords for fetching the
URL link. The tag suppression that preserves the user privacy
in the semantic web. Along with that Support Vector
Machine is used to classify their data based on the keywords
and Unsupervised Duplicate Detection is also implemented.
The combination of these services allows broadening the
functionality of collaborative tagging and concurrently
provides user and organization with a mechanism to preserve
their privacy while processing.
2. OVERVIEW OF THE PROPOSED APPORACH
A social Bookmarking service is centralized online services
which facilitate users to add, annotate and share bookmarks
of web document and support to collaborative tagging can be
considered as valuable knowledge as online resources as
concerned [3]. Collaborative tagging which it support tag-
based resources search, despite the system can enhance the
architecture with additional services address the issue
available in the service. The tagging is used to protect the
privacy by refraining from privacy Enhancing Technology to
separate the normal data from the sensitive data. Only the
permitted authorities can access the sensitive data can be
achieved by collaborative tagging with some services as tag
suppression used to suppress the data.
The architecture of the proposed system can be achieved by
using the additional services are Support Vector Machine
where used to classify their data based on the keywords. The
keywords can be feedback, location or cost. In previous the
location can be inclined manually enforce the simple
mechanism and concerning. For this reason, an android
mobile client is an application that access a service made
available by a server. The server is often but neither
invariably on another computer, in which case the client
access the service by way of a network. The terms applied to
devices could interact with remote computers via a network.
Before sending the request user has to be registered in the
server and the information stored in the database.
The user endorsed into the server, the user is requested option
to search their data on Query based or location based that are
displayed by using mobile GPS the location can be
determined.
Fig 2 Architecture of the proposed enhanced tagging services
Using tag suppression the end user privacy can be protected
and it’s a suitable strategy for the enhancement of privacy in
the scenario of collaborative tagging. Tag suppression is used
to classify the sensitive data from the normal data. The
Normal data can be viewed by the end users and the sensitive
data about the organization can be viewed only by the
permitted authorities. By using the SVM algorithm can
provide feedback for each and every category like product
accessories, display, volume, user friendly and so on. Based
on the keywords classification are performed and ratings will
be displayed. Classified data from the SVM carries duplex
data that are evacuated by Unsupervised Duplicate Detection.
Equivalent data can be construe as the ratio of number of
duplicates generated to the number of record pairs taken from
the data source and extract those data and display to the user.

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2.1 Tag Suppression
Collaborative tagging requires the enforcement of
mechanism that enable users to protect their privacy by
allowing them to hide certain data without making that
useless for the purposes they have been provided. Users tag
resources on the web according to their personal preferences.
Therefore contribute to describe and classify those resources
is inevitably revealing their profile. In general the
information can be trapped by aggressor; users may endorse a
privacy Enhancing technology based on data perturbation is
considered as tag suppression. It is a technique that has the
purpose of preventing privacy assailant from profiling user’s
interest on the footing of the tags what user stated. Tag
suppression as a suitable strategy for the enforcement of user
privacy in the scenario of tagging because inferior on the
impact of linguistic functionality.
2.2 Support Vector Machine
The user is to provide the feedback for the product or service.
Here also using Support Vector Machine Algorithm to get the
feedback. By using this algorithm can provide feedback for
each and every category like Products Accessories, display,
volume and user friendly etc and extract the keywords to get
the feedback from the user. The keywords are like Good,
Fair, Awesome, Magnificent, Bad and Poor etc.
Fig 3 Support Vector Machine
Based the on the keywords, feature space are performed and
ratings where displayed to get the good product. The margin
is used to rift the data based on the keywords are assigned as
origin value and to efficient these can be build up by
expanding the boundary space. A margin is a p-
dimensional real vector and wants to find the maximum-
margin hyper plane that divides the points having boundary.
The boundary value can be of two points are mapped as
shortest distance to the closest positive point and shortest
distance to the closest negative point. Any hyper plane can be
written as the set of points are available in plane. The
parameter determines the offset of the hyper plane from the
origin along the normal vector. Based the on the keywords,
feature space are performed and ratings where displayed to
get the good product.
2.3 Unsupervised Duplicate Detection
Duplicate detection is used interchangeably with record
linkage. There have been many efforts in finding solution to
the problem of identifying duplicates records. Most of the
research for identifying duplicate records is based on
predefined matching rules hand-coded by domain experts or
matching rules learned offline by some learning. Such
approaches work well in a traditional database environment,
where all instances of the target databases can be readily
accessed. In a Web database scenario, the records to match
are highly query-dependent and they can only be obtained
through online queries. When using a traditional database the
data to be retrieved is known before hand which can be used
to train and identify duplicates beforehand. This is in contrast
to Web databases where results from multiple sources have to
be combined with no pre-determined training data. Duplicate
ratio can be defined as the ratio of number of duplicates
generated to the number of record pairs taken from the data
source.
3. RELATED WORKS
Collaborative tagging as a challenging research topic in early
days is most popular services available in online. Assorted
paper considered its specific characteristics, the similarity
and difference with traditional annotation techniques along
text labels. The tagging and bookmarking may contribute
various incentives [2]. In prior that are contrasted peer-to-
peer knowledge management with tagging approaches
[4][18]. Measuring the relationships among tags or tagged
resources is an active research area. It provides a model of
semantic-social networks for extracting lightweight ontology
from del.icio.us [1].
Then exploring the privacy paradox in the content of online
social networking further understanding divulge private
information in an online social network which are posed
some research question about the common characteristics,
motivating factors and control to protect their private
information[5]. A second hypothesis (H2) is that individuals
who communicate through virtual social networks feel they
have control over their own private information and (H3) has
the majority of individuals who communicate through virtual
social networks will confirm that they did not read the
privacy policy before becoming a member. The privacy gain
in this work bears certain similarity with the concept of co
privacy, brought in for a P2P in [6] [13][18]. Co privacy was
defined as a situation where the best strategy for a peer to
preserve privacy is to help another peer in preserving
privacy. The advantage is that they make privacy
preservation of each specific individual.
A user profile as a histogram of relative frequencies of tags
across categories of interest and quantify the degree of
privacy attained by modification as its Shannon entropy [6]
without empirical evaluation. An issue concern with the
trustworthiness has been focused on services. Social tagging
services are supported virtually by any online application
which increases the risk of cross referencing. The
perturbative technique to the collaborative filtering algorithm
based on singular value decomposition [21] technique might
not be able to conserve privacy

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4. CONCLUSIONS
Collaborative tagging system has the potential to improve
traditional solution where the information available in online
services which are extremely popular. Although it is basically
used to support resource search, probable is still to be
exploited. One of these potential is the provision of web
access functionalities such as content filtering and hole up the
delicate data. However it would be necessary to extend the
architecture of the current collaborative tagging services so
as to include a policy layer that supports the enforcement of
user preferences. A collaborative tagging is one of the most
diffused and gaining a popularity, it has become more
evident the need for privacy protection.
Motivated by all this, contribution is an architecture that
incorporates on support of enhanced and private collaborative
tagging. More specifically the proposed architecture consists
of two additional services built on it. The support vector
machine and unsupervised duplicate detection to classify the
data based on the feedback, location or cost. The location can
be identifying by using GPS that are performed by
connecting mobile user to the remote computer and extract
the duplex from the classified data.
The combination of these two services allows broadening the
functionality of collaborative tagging system and provides
users with a mechanism to preserve the privacy while tagging
can be achieved by using tag suppression showing its
effectiveness in terms of privacy and analyze the data.
Considered that what reported in this paper can be useful to
evaluate the further future development in the field. Future
work includes the development of a complete prototype and
understanding of the constraints and affordance of tag based
information systems.
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