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您的检索式：作者名="Shahid Yousaf"
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| 1 | Modelling and Verification of Context-Aware Intelligent Assistive Formalism显示文摘Recent years have witnessed the expeditious evolution of intelligentsmart devices and autonomous software technologies with the expandeddomains of computing from workplaces to smart computing in everydayroutine life activities. This trend has been rapidly advancing towards the newgeneration of systems where smart devices play vital roles in acting intelligently on behalf of the users. Context-awareness has emerged from the pervasive computing paradigm. Context-aware systems have the ability to acquirecontextual information from the surrounding environment autonomously,perform reasoning on it, and then adapt their behaviors accordingly. With theproliferation of context-aware systems and smart sensors, real-time monitoring of environmental situations (context) has become quite trivial. However,it is often challenging because the imperfect nature of context can cause theinconsistent behavior of the system. In this paper, we propose a contextaware intelligent decision support formalism to assist cognitively impairedpeople in managing their routine life activities. For this, we present a semanticknowledge-based framework to contextualize the information from the environment using the protégé ontology editor and Semantic Web Rule Language(SWRL) rules. The set of contextualized information and the set of rulesacquired from the ontology can be used to model Context-aware Multi-AgentSystems (CMAS) in order to autonomously plan all activities of the users andnotify users to act accordingly. To illustrate the use of the proposed formalism,we model a case study of Mild Cognitive Impaired (MCI) patients usingColored Petri Nets (CPN) to show the reasoning process on how the contextaware agents collaboratively plan activities on the user’s behalf and validatethe correctness properties of the system. | Shahid Yousaf Hafiz Mahfooz Ul Haque Abbas Khalid Muhammad Adnan Hashmi Eraj Khan | 2022 | Computers, Materials & Continua2022，，5： | 0 |
| 2 | Intervarietal Variation in Proximate Composition and Antioxidant Potential of Dry Peas (Pisum sativum L)显示文摘 | Majeed Mudasir Chatha Shahzad-Ali-Shahid Hussain Abdullah-ljaz ASI Muhammad-Rafique Mahboob Shahid Yousaf Muhammad | 2010 | Journal of Chemistry and Chemical Engineering2010，4，11： | 0 |
| 3 | An Efficient Image Cipher Based on 2D Scrambled Image and Random Numbers显示文摘Security of images plays an import role in communication in current era due to the popularity and high usage ofmultimedia content in the Internet.Image security is described as applying an encryption algorithm over the given plaintext images to produce cipher images that can be transmitted safely over the open channel,the Internet.The problem which plagues these image ciphers is that they are too much time consuming,and that do not meet the dictates of the present times.In this paper,we aim to provide an efficient image cipher.The previous studies employed many constructs like Langton’s Ant,15 puzzle game and Castle in the 2D scrambled image based image ciphers,which had grave implications related to the high execution time of the ciphers.The current study directly made use of the 2D scrambled image to realize the purpose.Moreover,no compromise has been made over the security of the proposed image cipher.Random numbers have been generated by triggering the Intertwining Logistic Chaotic map.The cipher has been subjected to many important validation metrics like key space,information entropy,correlation coefficient,crop attack and lastly time complexity to demonstrate its immunity to the various attacks,and its realworld application.In this paper,our proposed image cipher exhibits an encryption speed of 0.1797 s,which is far better than many of the existing encryption ciphers. | Asghar Ali Sammia Ansar Ashwag Albakri Nadeem Iqbal Shahid Yousaf | 2022 | Journal of Cyber Security2022，4，3： | 0 |
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