In this paper, aiming at efficiently solving the problem of deduplication with differential privileges in cloud computing, we consider a hybrid cloud architecture consisting of a public cloud and a private cloud. The data owners only outsource their data storage by utilizing public cloud while the data operation is managed in private cloud. A new […]
Archives for September 2014
Foveated Video Quality Metric based on Wavelet Distortion Visibility
In this paper we propose an FR attention driven foveated video quality (AFViQ) metric. A perceptual based foveal imaging model consisting of an improved video attention model and an advanced fixation prediction approach by simulating the essential functionality of eye movement; ii) an accurate video quality metric by integrating the foveal imaging model into wavelet-based […]
Location-Privacy Preserving Mechanism for LBS
In this paper we propose a novel location-privacy preserving mechanism for Location based services. To take advantage of the high effectiveness of hiding user queries from the server, which minimizes the exposed information about the users’ location to the server; we propose a mechanism in which a user can hide in the mobile crowd while […]
Interpreting the Public Sentiment Variations on Twitter
This paper presented a study on the implementation of fault-tolerant network interfaces for NoCs. A fault-free network interface assumes a particular relevance in the design of a reliable multiprocessor system-on chip (MPSoC). In this paper, we focus on an NI providing basic communication services. Presented fault models and fault-tolerant techniques can be, however, extended to […]
A New Compression Algorithm for Fingerprint Image
This paper proposed a fingerprint compression based on sparse representation. The proposed method has the ability by updating the dictionary. The specific process is as follows: construct a base matrix whose columns represent features of the fingerprint images, referring the matrix dictionary whose columns are called atoms; for a given whole fingerprint, divide it into […]