Recent advancements in Internet technology research, as well as the widespread of commercial content delivery networks, motivates the need for optimization algorithms designed to work in decentralized manner. In this paper we formulate data placement problem, a special case of universal facility location problem with quadratic terms in objective function. The considered combinatorial optimizati...

We introduce a new technique for constructing a family of universal hash functions. At its center is a simple metaphor: to hash a string x, cast each of its words into a small number of buckets; xor the contents of each bucket; then collect up all the buckets' contents. Used in the context of Wegman{Carter authentication, this style of hash function provides a fast approach for software message...

It is a great honor to be invited to contribute to the first issue of the Journal of the Iranian Statistical Society. May the Journal and those associated with it have great success in attaining its goals and in furthering the progress of statistical science. While there has been worldwide recognition of the important role that statistics and statisticians play in producing progress in science ...

The Universal Core (UCore) is a central element of the National Information Sharing Strategy that is supported by multiple U.S. Federal Government Departments, by the intelligence community, and by a number of other national and international institutions. The goal of the UCore initiative is to foster information sharing by means of an XML schema providing consensus representations for four gro...

with recently widespread use of mobile phones and sms communication in iran and reformulation of conventional communication practices, short message advertisements have recently started to gain prominence in the world of advertisement as a quick, less costly, available and reliable means of introducing the products and services offered by the companies and institutions. with this in mind, the p...