It is getting important that applies social network of collaborative learning to intelligent distance learning system. In this paper, we used the Rule-Space Model to infer reasonable Blue-Red trees of learning perform...
It is getting important that applies social network of collaborative learning to intelligent distance learning system. In this paper, we used the Rule-Space Model to infer reasonable Blue-Red trees of learning performance and their definitions. We can derive nine learning groups of social network grouping algorithms and classify particular Blue-Red Trees that belong to specific learning group from previous definitions. They include the general formula for one-to-one complementary collaborative learning group algorithms of strong learning and illustration distribution. Therefore, we use these algorithms to build a social network learning system and social network learning methods with learning performance of Blue-Red trees. Finally, an example for a course with the Rule-Space Model analysis of learning objects is illustrated and proved. From this example, they can be created thirty-six learning performances of Blue-Red trees that are grouped under nine learning groups of social network and inferred one-to-one complementary collaborative learning group algorithms of strong learning. So, the algorithms within the system will recommend those specific Blue-Red trees that satisfy one-to-one complementary collaborative learning group of strong learning.
We consider the problem of dynamic content distribution in publish-subscribe mobile social networks. Mobile users subscribe to the content provider. Then, when new content is created, the provider transmits it to subs...
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We consider the problem of dynamic content distribution in publish-subscribe mobile social networks. Mobile users subscribe to the content provider. Then, when new content is created, the provider transmits it to subscribers (i.e., mobile users) through the base station. The mobile users who have the social relationship (i.e., mobile users in the same community) can transfer the fresh content when they move and meet each other. From the content provider's perspective, the content transmission policy by the base station can be optimized so that the number of mobile users having the fresh data is maximized subject to the constraint on the maximum waiting time of the new content. An optimization formulation is presented for the content provider to obtain this optimal content transmission policy. Performance evaluation results show that with the optimal content transmission policy, the average number of mobile users having fresh content is larger than that if the new content is transmitted immediately.
The activity scheduling of sensors to alternately wake up for sensing obligation such that the network lifetime can be efficiently prolonged is a very important issue in wireless sensor networks (WSNs). Target area co...
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The activity scheduling of sensors to alternately wake up for sensing obligation such that the network lifetime can be efficiently prolonged is a very important issue in wireless sensor networks (WSNs). Target area coverage is a new coverage problem in wireless sensor networks. The paper addresses the target area coverage problem and schedules sensors to alternatively wake up to collaboratively cover and sense the target area. A geometric-based activity scheduling scheme, named GAS scheme, for WSNs to fully cover a target area is proposed. By means of computational geometry, the sensors can self-determine when to sleep or wake up while preserving the sensing coverage. GAS is able to find as few sensors as possible to cover the target area, which is termed a cover set. In addition, GAS can find as many number of cover sets as possible to be alternately in charge of the sensing task. Simulation results show that GAS can efficiently schedule the sensor when to switch between active and sleep modes. Furthermore, the network lifetime can be prolonged significantly in comparison with the state-of-the-art schemes.
Compact and simple bandpass filter (BPF) structure using microstrip isosceles triangular patch resonator (ITPR) is proposed. The new filter design technique is based on two main ideas: Firstly, cutting the corners of ...
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Compact and simple bandpass filter (BPF) structure using microstrip isosceles triangular patch resonator (ITPR) is proposed. The new filter design technique is based on two main ideas: Firstly, cutting the corners of the triangular structure, to make the filter size more compact. Secondly, etching slit in staircase form near the base of the triangle, in order to improve the filter performances. The proposed filter was designed and fabricated on Taconic CER-10 substrate with a relative dielectric constant of 10 and a thickness of 0.64mm using standard photolithography process. The final dimension of the proposed filter is measured at 5.7mm × 7.6 mm. Measured S-parameters showed that the filter achieves a 3-dB fractional bandwidth of 55% at center frequency of 10.36 GHz, with measured insertion loss of 2.08 dB and measured return loss better than 10 dB. The measured results are in good agreement with the simulated results.
networks have been used to describe and model a wide range of complex systems, both natural as well as man-made. One particularly interesting application in the earth sciences is the use of complex networks to represe...
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This study applied the features of social media to implement a picture book in facilitating the students collaborative creative activity. Based on Amabile's componential theory, this study evaluated the influences...
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ISBN:
(纸本)9789834251253
This study applied the features of social media to implement a picture book in facilitating the students collaborative creative activity. Based on Amabile's componential theory, this study evaluated the influences of social media in students' creativity behaviors. The results showed that the students were more active to present multi-thinking, as well as revealed higher significant satisfaction in the perceptions of the ownership of working and peers' mutual support. Moreover, the collaborative creative environment engaged the students in developing creative works.
In traditional learning environment, it includes learning and testing. These two parts of learning behaviors are the most students doing when they are learning. Especially In distance learning,, the learning behavior ...
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ISBN:
(纸本)9781424467082
In traditional learning environment, it includes learning and testing. These two parts of learning behaviors are the most students doing when they are learning. Especially In distance learning,, the learning behavior is a important analysis facto to instructors. But one of the research issues is how to integrate these two leaning behavior into high learning efficient and good learning result. In recently distance learning, computer-based testing has become the most popular way of assessment, but there are too many issues which discuss about the testing efficiency from computer-based learning. In this paper, we proposed an assessment mechanism which integrating leaning map and SPC Table, this assessment mechanism can lead instructors and students understand the assessment item situation, and give students more feedbacks which are suitable to them, it also called adaptive feedback, after this feedback, students can learn with high learning efficiency and good learning result.
Conventional context-aware system refers to an intelligent mobile system that can sense the Real Space (RS). Its essential functions are to understand the situation in RS as well as to supply suitable information or s...
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This study presents a novel sequential Type-I optimal normal basis multiplier in GF(2m) with a regular structure. The proposed multiplier has a slightly higher space complexity than the Reyhani-Masoleh- Hasan's (R...
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This study presents a novel sequential Type-I optimal normal basis multiplier in GF(2m) with a regular structure. The proposed multiplier has a slightly higher space complexity than the Reyhani-Masoleh- Hasan's (RMH) multiplier, but is 27% faster than the RMH multiplier. Furthermore, the proposed multiplier is highly regular, modular, expandable and well-suited to VLSI implementation. A new normal basis inverter based on the proposed multiplier is also invented. The proposed inverter provides better time-area complexity than existing inverters as with large m.
Technical evolution of location technologies has augmented the development and growth of location-based services. With widespread adoption of these services, threats to location privacy are increasing, entailing more ...
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Technical evolution of location technologies has augmented the development and growth of location-based services. With widespread adoption of these services, threats to location privacy are increasing, entailing more robust and sophisticated solutions. This paper proposes an intuitive obfuscation-based scheme, which uses vagueness in human perception of nearness to provide a flexible and robust location privacy scheme. Key to this work is the concept of vagueness degree, which aims to enhance its robustness against privacy attacks. Furthermore, our scheme is totally in line with human perception of privacy and provides a solution, which mostly suits proximity-based services, social networking environments, and other similar applications. The solution is also applicable to various environments ranging from geographical locations to IP-based and mobile networks. We propose three privacy-aware architectures for our scheme. In addition, it is shown that the time and space complexity of the scheme is polynomial. The robustness of the scheme against privacy attacks as well as its implementation issues are discussed.
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