This paper deals with the problem of user-server assignment in online social network systems. Online social network applications such as Facebook, Twitter, or Instagram are built on an infrastructure of servers that enables them to communicate with each other. A key factor that determines the facility of communication between the users and the servers is the Expected Transmission Time (ETT). A ...

data visualization is the process of transforming data, information, and knowledge into visual form, making use of humans’ natural visual capabilities which reveals relationships in data sets that are not evident from the raw data, by using mathematical techniques to reduce the number of dimensions in the data set while preserving the relevant inherent properties. in this paper, we formulated d...

There is growing consensus that global food systems will need to undergo substantial transformations ensure continued security and halt environmental degradation. Such efforts have include more sustainable management of existing farmscapes. Here, we examine drivers cropland transitions between 13 crop commodities cultivated in Kern County, California. We parameterized multinomial logistic regre...

We evaluate the goal of maximizing number individuals matched to acceptable outcomes. present two mechanisms that maximize assignments. The first is Pareto efficient and undominated—in terms assignments—in equilibrium. second fair for unassigned agents assigns weakly more than any stable mechanism in

for a given graph $g=(v,e)$, let $mathscr l(g)={l(v) : vin v}$ be a prescribed list assignment. $g$ is $mathscr l$-$l(2,1)$-colorable if there exists a vertex labeling $f$ of $g$ such that $f(v)in l(v)$ for all $v in v$; $|f(u)-f(v)|geq 2$ if $d_g(u,v) = 1$; and $|f(u)-f(v)|geq 1$ if $d_g(u,v)=2$. if $g$ is $mathscr l$-$l(2,1)$-colorable for every list assignment $mathscr l$ with $|l(v)|geq k$ ...

The paper presents experimental results on quadratic assignment problem. The “scanning area” method formulated for radioelectronic equipment design is applied. For all more complex tests ours results are better or coincident with the ones known in literature. Conclusion concerning the effectiveness of method are given.

russian language, with regard to its grammar, is a language with its own special complexities, hardly found in other languages. although languages are different from each other, they have some similarities as well. the iranian learner, while learning russian, analyzes the sentences using patterns similar to his/ her native language patterns. occasionally, such native patterns cause the learner ...