In this paper we present a secure patient medical images and authentication scheme which enhances the security, confidentiality and integrity of medical images transmitted through the Internet. This paper proposes a watermarking by invoking particle swarm optimization (PSO) technique in adaptive quantization index modulation and singular value decomposition in conjunction with discrete wavelet ...

In this paper, a fast computation algorithm for the two-dimensional discrete cosine transform (2-D DCT) is derived based on index permutation. As a result, only the computation of N Npoint l-D DCT’s and some postadditions are required for the computation of an (?JxN)-point 2-D DCT. Furthermore, as compared with [7], the derivation of the refined algorithm is more succinct, and the associated po...

Web services are taking an important place in the distributed computing field, as well as in the electronic business. In this work we present an initial research which deals with the issue of automated service retrieval. For that, we propose an approach which exploits the service interface (inputs/outputs) and the domain ontology, in order to index conceptually the web services, after that, we ...

Digital watermarking is a good tool for healthcare information management systems. The wellknown quantization-index-modulationQIMbased watermarking has its limitations as the host imagewill be destroyed; however, the recovery ofmedical image is essential to avoidmisdiagnosis. A transparent yet reversible watermarking algorithm is required for medical image applications. In this paper, we propos...

We extend high-rate quantization theory to distributed source coding for the case in which the rate is the conditional entropy of the quantization index given the side information. This theory is applied to orthonormal block transforms for distributed source coding. A formula for the optimal rate allocation and an approximation to the optimal transform are derived. We implement a transform-doma...

As the most important node in public transport network, efficiency of a transport hub determines the entire efficiency of the whole transport network. In order to put forward effective transfer schemes, a comprehensive evaluation index system of urban transport hubs’ transfer efficiency was built, evaluation indexes were quantified, and an evaluation model of a multi-objective decision hub tran...

Successful applications of the gene ontology to the inference of functional relationships between gene products in recent years have raised the need for computational methods to automatically calculate semantic similarity between gene products based on semantic similarity of gene ontology terms. Nevertheless, existing methods, though having been widely used in a variety of applications, may sig...

In this paper, we present an approach for topic-level video snippet-based extractive summarization, which relies on con tent-based recommendation techniques. We identify topic-level snippets using transcripts of all videos in the dataset and indexed these snippets globally in a word vector space. Generate snippet cosine similarity scores matrix, which are then utilized to compute top snippets t...

In this paper we introduce some new modified cosine sums and then using these sums we study L1-convergence of trigonometric cosine series.

As traditional topic detection under the online social network is lack of mining the topic semantic features and dynamic evolution characteristics, this paper studies the semantic features and dynamic evolution trend based on topic temporal chain under the online social network. According to the temporal relations, text flows are divided into the text set in continuous time slice, then combinat...