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We propose AccountTrade, a set of accountable protocols, for big data trading among dishonest consumers. To secure the big data trading environment, our protocols achieve book-keeping ability and accountability against dishonest consumers who may misbehave throughout the dataset transactions. Specifically, we study the responsibilities of the consumers in the dataset trading and design AccountTrade...
For most of the virtual instrument developed by mobile devices, although it is convenient, it is needed a specific data acquisition device to test and is strict with time and space. A reconfigurable measurement method for the mobile terminal was presented and A reconfigurable test system component library by adopting the support open Android mobile terminal was developed this paper. It realizes reconfigurable...
We propose a graph-based framework for privacy preserving data publication, which is a systematic abstraction of existing anonymity approaches and privacy criteria. Graph is explored for dataset representation, background knowledge specification, anonymity operation design, as well as attack inferring analysis. The framework is designed to accommodate various datasets including social networks, relational...
Social network data is widely shared, transferred and published for research purposes and business interests, but it has raised much concern on users' privacy. Even though users' identity information is always removed, attackers can still de-anonymize users with the help of auxiliary information. To protect against de-anonymization attack, various privacy protection techniques for social networks...
A new different method has been developed for solving one-dimensional parabolic differential equations in this paper. Here, the standard backward Euler difference scheme was improved by the clustering algorithm. The method is illustrated by numerical examples. It not only reduces computing time remarkably, but also shows better performance in data storage and at the same time is more stable than the...
A new approach for one source signal extraction based on metrics transform is proposed and investigated in this paper. First, the mixing matrix is estimated by employing the K-means algorithm on single-source-points with higher energies. Then, the time-frequency points that incorporate one source, which can be used to approximately denote the source signals that include main information of them, are...
This paper presents a wireless monitoring system. It consists of a novel capacitive angle sensor, a sensing-processing circuit and a low power remote control unit. The sensor is made up of integrated capacitance array which is covered with a seal box. Conducting liquid in the box connects certain capacitors with measuring circuits to acquire angle degree under gravity action. The sensor and the sensing-processing...
A zero standby power remote control system used for household appliances is presented in this paper. The system consists of two parts. One is transmitting unit and power amplifier which send RF modulated signal. The other is receiving unit and power management block which recover energy, demodulate the RF signal and control the power switch of the household appliances. Both transmit and receive ends...
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