Search or add a thesis

Advanced Search (Beta)
Home > Modelling Interaction Using Trust and Recommendations in Pervasive Computing Environment

Modelling Interaction Using Trust and Recommendations in Pervasive Computing Environment

Thesis Info

Access Option

External Link

Author

Iltaf, Naima

Program

PhD

Institute

National University of Sciences & Technology

City

Islamabad

Province

Islamabad

Country

Pakistan

Thesis Completing Year

2013

Thesis Completion Status

Completed

Subject

Computer Science

Language

English

Link

http://prr.hec.gov.pk/jspui/bitstream/123456789/10107/1/Naima_Altaf_Computer_Software_Engineering_2013_NUST_13.06.2016.pdf

Added

2021-02-17 19:49:13

Modified

2024-03-24 20:25:49

ARI ID

1676727792378

Asian Research Index Whatsapp Chanel
Asian Research Index Whatsapp Chanel

Join our Whatsapp Channel to get regular updates.

Similar


Pervasive computing is characterized by large numbers of roaming entities and the absence of a globally available fixed infrastructure. In such an environment entities need to collaborate with little known or even unknown entities. In traditional environments with clearly defined administrative boundaries security decisions are usually delegated to a centralized administrative authority. In the pervasive computing environment no single entity can play this role, entities are required to make their own security decisions and as a result traditional techniques are not an option. Human notion of trust enables human societies to collaborate and interact based on personal and shared experiences. Thus a security model based on the real world characteristics of trust can provide the internal security for autonomous computing devices embedded in pervasive environment before taking action, despite uncertainty and inadequate information. The work presents an adaptive trust and recommendation based access control model based on human notion of trust. The proposed model provides support to calculate direct as well as indirect trust based on recommendations. It handles situations (by itself) both in which the requesting entity has a past experience with the service and a stranger entity requesting to access the service without any past interaction with the service. A mathematical formula together with adaptable security policies is introduced to handle malicious strategic attack in direct trust computation. The model encompasses the ability to reason human cognitive behavior and has the capability to adjust in accordance with behavioral pattern changes. The performance of indirect trust computation models (based on recommendations) can be easily compromised due to the subjective and social-based prejudice of the provided recommendations. Eradicating the influence of such recommendation remains an important and challenging issue in indirect trust computation models. An effective model for indirect trust computation is also proposed which is capable of identifying dishonest recommendations. Dishonest recommendations are identified by using deviation based detecting technique. The concept of measuring the credibility of recommeni dation (rather than credibility of recommender) using fuzzy inference engine is also proposed to determine the influence of each honest recommendation. The proposed model has been compared with other existing evolutionary recommendation models in this field, and it is shown that the model is more accurate in measuring the trustworthiness of unknown entity. An XML-over-UDP based recommendation exchange protocol to share recommendation information between smart devices, is also outlined to complement the model. Implementation of the proposed model on android smart phone using OSGi is presented to demonstrate the effectiveness of the protocol in pervasive computing environment. Experimental results demonstrate that using HTTP or TCP for recommendation exchange between smart devices in wireless environment lead to significantly higher overhead as compared to XML-over-UDP. In general, our research work presents a comprehensive framework for secure trust based access control that will augment future research towards real world implementation of pervasive computing environment.
Loading...
Loading...

Similar Books

Loading...

Similar Chapters

Loading...

Similar News

Loading...

Similar Articles

Loading...

Similar Article Headings

Loading...

مو لانا عبدالصمد رحمانی

مولانا عبدالصمد صاحب رحمانی
دوسرا حادثہ مولانا عبدالصمد صاحب رحمانی نائب امیر شریعت صوبہ بہار و اڑیسہ کا ہے وہ بھی پرانی یادگار، اس دور کے نامور عالم اور ملک و ملت کے پرانے خدمت گزار تھے، ملکی و ملی تحریکات میں ان کا نمایاں حصہ رہا، خلافت اور ترک موالات کی تحریک اور ہندوستان کی آزادی کی جدوجہد میں مولانا سجاد بہاری مرحوم کے رفیق کار تھے، ان کی وفات سے ایک قدیم یادگار اٹھ گئی، اﷲ تعالیٰ ان کے مدارج بلند فرمائے۔
(شاہ معین الدین ندوی،جون ۱۹۷۳ء)

مفهوم الأدب الإسلامي و إسلامية الأدب عبر العصور

Islamic literature is a term referring to the school of thought who believes that a good literary work should view God, man and the world through the lens of Islam. It is conceived that the style of such literature must be of high quality with the Qur’ān, Ḥadith and the legacy of the Islamic scholars being its model. Islamic literature is a universal literature and can be written in any language. However, most of what has been written on the theory and practice of Islamic literature is in Arabic. This study discusses the model of Islamic literature in era of Islam, Umayyad period, Abbasid period, and Modern world. Topics of Islamic literature in modern times are dealing with the moral values ​​in the Qur’ān and the Sunnah of the Prophet, peace be upon him.  It discusses Jurisprudence in worship Biography of the Prophet and Praise of the Prophet and his companions God bless them all. The deep knowledge of Arabic language and Islamic literature solves the social and cultural problems around the world.

Innovation Management in University Libraries of Pakistan: An Analysis of Academic Library Leaders Perceptions

Growing competition in higher education and Information communication technologies is posing a pressure on universities and resultantly on their libraries as well. Academic libraries need to be innovative for meeting the new vision mission of higher education. Hence, innovation management in the university libraries is the need of the hour. However, there is a lack of research-based studies on innovation management in Pakistan. The purpose of this study is to ascertain the scenario of innovation management in university libraries of Pakistan. In particular, it seeks to investigate the importance, characteristics of innovation, current management practices, the barriers, and supporting factors that stimulate innovation. The study would also be useful for other developing countries of Asia because some other countries of Asian region have same type of social, economic and cultural infrastructure. This study adopted sequential mixed methods research design based on quantitative data collection, followed by qualitative data collection. In the first phase, websites of all 183 universities were examined using list of 40 innovations prepared by the Jantz (2013). The purpose of websites review was twofold: firstly to examine the status of adoption of innovations, and secondly, to draw sample cases for further investigation. The libraries possessing at least three similar innovation as listed by Jantz (2013) was ranked innovative and libraries with two or less were ranked traditional libraries. Twenty university libraries: ten traditional, and ten more innovative than those were selected purposively. The selected libraries were observed for innovation in the physical environment. Head librarians of selected libraries were interviewed to learn about their views on innovation management in their libraries. v The results of the website review indicated that 143 out of 183 university libraries did not possess any innovation as listed in Jantz (2013). Only 16% of the university libraries managed some listed innovations. The libraries categorized innovative possessed a better physical environment than the traditional category libraries.The results of semi- structured interviews of library leaders demonstrated that the respondents from both categories of libraries considered innovation as most important and defined the characteristics of innovation as close to the ones mentioned in the literature. The study found that the management styles of both types of library leader were represented as ‗collaborative‘, ‗consultative‘ and ‗democratic‘. However, the leaders of the innovative category library implemented formal strategies to manage innovations. This was missing in the traditional libraries. A range of successful projects (3-14) were found in the innovative libraries and traditional library leaders exhibited a minimal number (1-2) of such projects. According to the library leaders, budget shortage, a lack of staff, a lack of training, skills/knowledge, shortage of space, resistance to change, lack of leadership qualities, lack of incentive/reward/recognition, fear of failure, vision of higher authorities, non supportive attitude, and the unavailability of a library culture in the society were the barriers in adopting innovations. An overwhelming majority of the respondents ranked technology as a major force. Positive qualities of the leaders like vision and affective planning, competent and knowledgeable staff members, incentives rewards, appreciation, trainings, seminars and socialization with professionals, professional organizations, demands of users, higher authorities including vice chancellors, the Higher Education Commission, library and information science schools etc. were considered as supportive factors in bringing innovations. vi The study found that professionals can help scholars and researchers to learn the use of databases, and research software. However, there was no formal practice to facilitate the scholarly communication i.e., conversion of print journals to the electronic format with the cooperation of editors of research journals and preserving, archiving and managing the research output of the organization.Users group of libraries were found to be the same as in the past like students of all levels, faculty, researcher scholars and staff. No new group, like editors of research journals were involved with the library professional to digitalize the research contents into digital format. At the end of study, all library leaders were found optimistic for the future of university libraries by adopting the useful innovations.