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Opportunistic mobile networks consist of mobile devices which are intermittently connected via short-range radios. Forwarding in such networks relies on selecting relays to carry and deliver data to destinations upon opportunistic contacts. Due to the intermittent network connectivity, relays in current forwarding schemes are selected separately in a distributed manner. The contact capabilities of...
With the rapid adoption of Internet and wireless technology, the demand for a faster and reliable speed has been dramatically increasing. Identifying influential factors in consumers wireless technology adoption and willingness to pay for a faster Internet speed across various settings has been an important and focal interest in wireless communication for both researchers and practitioners. By using...
Digital Watermarking may be used to protect databases copyright. A new method for proving the ownership of relational databases is presented. Such approach is applied for protecting both textual and numerical data. This is done by embedding special mark and watermark bits into textual attributes and numerical attributes respectively. Carriage return character and linefeed character, representing 1...
This paper is to introduce the fuzzy control for the experimental autonomous airship. The basic technology that includes the hardware of the system and the program to control the airship navigating along the shortest flight path to the target point is developed. Fuzzy control is used because the control for an airship is nonlinear and it is difficult to describe the accurate motional equations of...
In order to fit socialization and marketization of peasants' production and life, countryside comprehensive service system comes into being gradually. Information service platform of new countryside includes five function modules, such as “developed production”, “richness life”, “civilized fashion”, “tidy village” and “democratic management”. To complete this project, the underlying database was well...
Constructing a reliable data term and occlusion handling are two important issues for energy model based stereo method. In this paper, we at first use a 2-step adaptive support-weight correlation approach to get a reliable correlation volume. Then a pixel classification is proposed which classifies pixels into three classes: occluded, unstable and stable. For each pixel, according its class, a confidence...
Ant Colony Algorithm is a very good combination optimization method from mimic the swarm intelligence of ant colony behaviours. To extend the traditional Ant Colony Algorithm to continuous optimization problems, from the connections of continuous optimization and searching process of Ant Colony Algorithm, here one new Continuous Ant Colony Algorithm is proposed. To verify the new algorithm, the typical...
Information entropy is an effective description for the uncertainty of a system, and could be used for the symptom to detect the vibration changes of steam turbine. Based on the faulty signals collected from rotor test rig, three information entropy: singular spectrum entropy, power spectrum entropy, wavelet energy spectrum entropy were calculated as information entropy data. Probability neural networks(PNNs)...
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