List of Articles SSIM

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  1 - Cover Selection Steganography Via Run Length Matrix and Human Visual System
  Sara Nazari Mohammad Shahram Moin
  10.7508/jist.2013.02.007
  A novel approach for steganography cover selection is proposed, based on image texture features and human visual system. Our proposed algorithm employs run length matrix to select a set of appropriate images from an image database and creates their stego version after e More

  A novel approach for steganography cover selection is proposed, based on image texture features and human visual system. Our proposed algorithm employs run length matrix to select a set of appropriate images from an image database and creates their stego version after embedding process. Then, it computes similarity between original images and their stego versions by using structural similarity as image quality metric to select, as the best cover, one image with maximum similarity with its stego. According to the results of comparing our new proposed cover selection algorithm with other steganography methods, it is confirmed that the proposed algorithm is able to increase the stego quality. We also evaluated the robustness of our algorithm over steganalysis methods such as Wavelet based and Block based steganalyses; the experimental results show that the proposed approach decreases the risk of message hiding detection. Manuscript profile
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  2 - SSIM-Based Fuzzy Video Rate Controller for Variable Bit Rate Applications of Scalable HEVC
  Farhad Raufmehr Mehdi Rezaei
  10.7508/jist.2019.03.004
  Scalable High Efficiency Video Coding (SHVC) is the scalable extension of the latest video coding standard H.265/HEVC. Video rate control algorithm is out of the scope of video coding standards. Appropriate rate control algorithms are designed for various applications t More

  Scalable High Efficiency Video Coding (SHVC) is the scalable extension of the latest video coding standard H.265/HEVC. Video rate control algorithm is out of the scope of video coding standards. Appropriate rate control algorithms are designed for various applications to overcome practical constraints such as bandwidth and buffering constraints. In most of the scalable video applications, such as video on demand (VoD) and broadcasting applications, encoded bitstreams with variable bit rates are preferred to bitstreams with constant bit rates. In variable bit rate (VBR) applications, the tolerable delay is relatively high. Therefore, we utilize a larger buffer to allow more variations in bitrate to provide smooth and high visual quality of output video. In this paper, we propose a fuzzy video rate controller appropriate for VBR applications of SHVC. A fuzzy controller is used for each layer of scalable video to minimize the fluctuation of QP at the frame level while the buffering constraint is obeyed for any number of layers received by a decoder. The proposed rate controller utilizes the well-known structural similarity index (SSIM) as a quality metric to increase the visual quality of the output video. The proposed rate control algorithm is implemented in HEVC reference software and comprehensive experiments are executed to tune the fuzzy controllers and also to evaluate the performance of the algorithm. Experimental results show a high performance for the proposed algorithm in terms of rate control, visual quality, and rate-distortion performance. Manuscript profile
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  3 - Mulla Sadra’s View of Philosophy
  Mansure  Rahmani Ahad Faramarz Gharamaleki Faramarz Gharamaleki
  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philo More

  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philosophy reflects the process of the perfection of the human soul in an essential and graded sense in the light of ontological wayfaring rather than in a quantitative or qualitative sense. He maintains that the end of philosophy is to become similar to God, and this similarity is realized through attaining all-inclusive knowledge and becoming separate from corporeal things. Assuming the sameness of philosophy and wayfaring results in pluralism in philosophizing, limitless philosophizing, separation of epistemological promotion from ontological promotion, methodological pluralism, and go togetherness of the purification of the soul and philosophy. Based on equating philosophy with wayfaring, Mulla Sadra tries to organize the structure of the Transcendent Philosophy based on the model of the four-fold journeys. Manuscript profile
• Open Access Article
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  4 - Mulla Sadra’s View of Philosophy
  Mansure  Rahmani Ahad Faramarz Gharamaleki Faramarz Gharamaleki Ghasim  Kakaie
  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philo More

  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philosophy reflects the process of the perfection of the human soul in an essential and graded sense in the light of ontological wayfaring rather than in a quantitative or qualitative sense. He maintains that the end of philosophy is to become similar to God, and this similarity is realized through attaining all-inclusive knowledge and becoming separate from corporeal things. Assuming the sameness of philosophy and wayfaring results in pluralism in philosophizing, limitless philosophizing, separation of epistemological promotion from ontological promotion, methodological pluralism, and go togetherness of the purification of the soul and philosophy. Based on equating philosophy with wayfaring, Mulla Sadra tries to organize the structure of the Transcendent Philosophy based on the model of the four-fold journeys. Manuscript profile
• Open Access Article
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  5 - Mulla Sadra’s View of Philosophy
  Mansure  Rahmani Ahad Faramarz Gharamaleki Faramarz Gharamaleki Ghasim  Kakaie
  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philo More

  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philosophy reflects the process of the perfection of the human soul in an essential and graded sense in the light of ontological wayfaring rather than in a quantitative or qualitative sense. He maintains that the end of philosophy is to become similar to God, and this similarity is realized through attaining all-inclusive knowledge and becoming separate from corporeal things. Assuming the sameness of philosophy and wayfaring results in pluralism in philosophizing, limitless philosophizing, separation of epistemological promotion from ontological promotion, methodological pluralism, and go togetherness of the purification of the soul and philosophy. Based on equating philosophy with wayfaring, Mulla Sadra tries to organize the structure of the Transcendent Philosophy based on the model of the four-fold journeys. Manuscript profile
• Open Access Article
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  6 - انگارة‌ ملاصدرا از فلسفه‌
  Mansure  Rahmani Ahad Faramarz Gharamaleki Faramarz Gharamaleki Ghasim  Kakaie
  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philo More

  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philosophy reflects the process of the perfection of the human soul in an essential and graded sense in the light of ontological wayfaring rather than in a quantitative or qualitative sense. He maintains that the end of philosophy is to become similar to God, and this similarity is realized through attaining all-inclusive knowledge and becoming separate from corporeal things. Assuming the sameness of philosophy and wayfaring results in pluralism in philosophizing, limitless philosophizing, separation of epistemological promotion from ontological promotion, methodological pluralism, and go togetherness of the purification of the soul and philosophy. Based on equating philosophy with wayfaring, Mulla Sadra tries to organize the structure of the Transcendent Philosophy based on the model of the four-fold journeys. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  7 - انگارة‌ ملاصدرا از فلسفه‌
  Mansure  Rahmani Ahad Faramarz Gharamaleki Faramarz Gharamaleki Ghasim  Kakaie
  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philo More

  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philosophy reflects the process of the perfection of the human soul in an essential and graded sense in the light of ontological wayfaring rather than in a quantitative or qualitative sense. He maintains that the end of philosophy is to become similar to God, and this similarity is realized through attaining all-inclusive knowledge and becoming separate from corporeal things. Assuming the sameness of philosophy and wayfaring results in pluralism in philosophizing, limitless philosophizing, separation of epistemological promotion from ontological promotion, methodological pluralism, and go togetherness of the purification of the soul and philosophy. Based on equating philosophy with wayfaring, Mulla Sadra tries to organize the structure of the Transcendent Philosophy based on the model of the four-fold journeys. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  8 - انگارة‌ ملاصدرا از فلسفه‌
  Mansure  Rahmani
  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philo More

  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philosophy reflects the process of the perfection of the human soul in an essential and graded sense in the light of ontological wayfaring rather than in a quantitative or qualitative sense. He maintains that the end of philosophy is to become similar to God, and this similarity is realized through attaining all-inclusive knowledge and becoming separate from corporeal things. Assuming the sameness of philosophy and wayfaring results in pluralism in philosophizing, limitless philosophizing, separation of epistemological promotion from ontological promotion, methodological pluralism, and go togetherness of the purification of the soul and philosophy. Based on equating philosophy with wayfaring, Mulla Sadra tries to organize the structure of the Transcendent Philosophy based on the model of the four-fold journeys. Manuscript profile
• Open Access Article
  • Abstract Page
  • Full-Text
  
  9 - Mulla Sadra’s View of Philosophy
  Mansure  Rahmani Ahad Faramarz Gharamaleki Faramarz Gharamaleki Ghasim  Kakaie
  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philo More

  In the view of some philosophers, philosophy has been reduced to mental wayfaring and conceptual exchanges. In contrast, based on certain practical aspects, some other philosophers consider philosophy to be the same as ontological wayfaring. In Mulla Sadra’s view, philosophy reflects the process of the perfection of the human soul in an essential and graded sense in the light of ontological wayfaring rather than in a quantitative or qualitative sense. He maintains that the end of philosophy is to become similar to God, and this similarity is realized through attaining all-inclusive knowledge and becoming separate from corporeal things. Assuming the sameness of philosophy and wayfaring results in pluralism in philosophizing, limitless philosophizing, separation of epistemological promotion from ontological promotion, methodological pluralism, and go togetherness of the purification of the soul and philosophy. Based on equating philosophy with wayfaring, Mulla Sadra tries to organize the structure of the Transcendent Philosophy based on the model of the four-fold journeys. Manuscript profile
• Open Access Article
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  10 - Cooperation in Multi-Agent Systems Using Learning Automata
  M. R. »hojasteh M. R. Meybodi
  Agents are software entities that act continuously and autonomously in a special environment. It is very essential for the agents to have the ability to learn how to act in the special environment for which they are designed to act in, to show reflexes to their environm More

  Agents are software entities that act continuously and autonomously in a special environment. It is very essential for the agents to have the ability to learn how to act in the special environment for which they are designed to act in, to show reflexes to their environment actions, to choose their way and pursue it autonomously, and to be able to adapt and learn. In multi-agent systems, many intelligent agents that can interact with each other, cooperate to achieve a set of goals. Because of the inherent complexity that exists in dynamic and changeable multi-agent environments, there is always a need to machine learning in such environments. As a model for learning, learning automata act in a stochastic environment and are able to update their action probabilities considering the inputs from their environment, so optimizing their functionality as a result. Learning automata are abstract models that can perform some numbers of actions. Each selected action is evaluated by a stochastic environment and a response is given back to the automata. Learning automata use this response to choose its next action. In this paper, the goal is to investigate and evaluate the application of learning automata to cooperation in multi-agent systems, using soccer server simulation as a test-bed. Because of the large state space of a complex multi-agent domains, it is vital to have a method for environmental states’ generalization. An appropriate selection of such a method can have a great role in determining agent states and actions. In this paper we have also introduced and designed a new technique called “The best corner in state square” for generalizing the vast number of states in the environment to a few number of states by building a virtual grid in agent’s domain environment. The efficiency of this technique in a cooperative multi-agent domain is investigated Manuscript profile
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  11 - Proposing an Intelligent Method for Design and Optimization of Double tail Comparator
  Sadegh Mohammadi-Esfahrood Seyed-Hamid Zahiri
  The performance of an Analog/Digital (A/D) converter, various aspects like general architecture of the converter, architecture of the building blocks or design of the blocks can be improved. The comparator block is a fundamental block in data converters. Due to contradi More

  The performance of an Analog/Digital (A/D) converter, various aspects like general architecture of the converter, architecture of the building blocks or design of the blocks can be improved. The comparator block is a fundamental block in data converters. Due to contradicting design purposes, circuit constraints and necessities, design of comparators and obtaining best circuit performance are complicated and challenging. Such challenges in circuit design necessitate presenting approaches which not only satisfy all the objectives but also, they are cost effective in terms of time and cost. One of the approaches which has recently attracted attentions is the heuristic algorithms based intelligent Methods. Inclined Planes system Optimization algorithm (IPO) is a novel heuristic algorithm inspired by dynamic movement of the objects on frictionless inclined planes. But despite its remarkable ability for exploration and exploitation of the search space, its standard model has complex relationships with many structural parameters that often confuse the user in choosing the effective values for them. In this paper, IPO algorithm is simplified to present a heuristic algorithm (called SIPO) and its efficiency in optimization of 10 standard benchmarks has been evaluated. Then, a multi-objective version of the proposed algorithm (called MOSIPO) for design and optimization of double tail comparator is presented and its efficiency in optimization of double tail comparator has been evaluated and compared with popular multi-objective intelligent methods. The results clearly demonstrate the improved performance and superiority of SIPO and MOSIPO compared to the other methods. Manuscript profile