Volume 52, Issue 1

 

ارسال های اخیر

  • A Note on Early Warning Systems for Monitoring the Inflation of Iran 

    Daadmehr, Elham؛ Habibi, Reza (University of Tehran, 2020-06-01)
    To check the financial stability, it is important to alarm the possibility of future potential financial crisis. In the literature, the early warning system (EWS) is designed to warn the occurrence of a financial crisis ...

  • A security aware workflow scheduling in hybrid cloud based on PSO algorithm 

    Mehravaran, Maedeh؛ Adibnia, Fazlollah؛ Pajoohan, Mohammad-Reza (University of Tehran, 2020-06-01)
    In real world, organization's requirements for high performance resources and high capacity storage devices encourage them to use resources in public clouds. While private cloud provides security and low cost ...

  • On computing total double Roman domination number of trees in linear time 

    Poureidi, Abolfazl (University of Tehran, 2020-06-01)
    Let $G=(V,E)$ be a graph. A doubleRoman dominating function (DRDF) on $G$ is a function$f:Vto{0,1,2,3}$ such that for every vertex $vin V$if $f(v)=0$, then either there is a vertex $u$ adjacent to $v$ ...

  • Edge-Tenacity 

    Moazzami, .Dara (University of Tehran, 2020-06-01)
    The edge-tenacity $T_e(G)$ of a graph G was defined asbegin{center} $T_e(G)=displaystyle min_{Fsubset E(G)}{frac{mid Fmid +tau(G-F)}{omega(G-F)}}$end{center}where the minimum is taken over all ...

  • On Point-inclusion Test in Convex Polygons and Polyhedrons 

    Imanparast, Mahdi؛ Kazemi Torbaghan, Mehdi (University of Tehran, 2020-06-01)
    A new algorithm for point-inclusion test in convex polygons is introduced. The proposed algorithm answers the point-inclusion test in convex polygons in $mathcal{O}(log n)$ time without any preprocessing and with $mathcal{O}(n)$ ...

  • On the expected weight of the theta graph on uncertain points 

    Iranfar, Behnam؛ Farshi, Mohammad (University of Tehran, 2020-06-01)
    Given a point set $Ssubset mathbb{R}^d$, the $theta$-graph of $S$ is as follows: for each point $sin S$, draw cones with apex at $s$ and angle $theta$ %fix a line through $p$ at each cone and connect $s$ to the point ...

  • Survival analyses with dependent covariates: A regression tree-base approach 

    Boskabadi, Mostafa؛ Doostparast, Mahdi؛ Sarmad, Majid (University of Tehran, 2020-06-01)
    Cox proportional hazards models are the most common modelling framework to prediction and evaluation of covariate effects in time-to-event analyses.These models usually do not account the relationship among covariates ...

  • Efficient Storage and Retrieval of In-Memory Static Data 

    Kapoor, Anuj (University of Tehran, 2020-06-01)
    Hash or B-Tree based composite indexes, are the two most commonly used techniques for searching and retrieving data from memory. Although these techniques have a serious memory limitation, that restricts textit{freedom} ...

  • What makes a Rhythm to be Bad 

    Jafaripour, Saeed؛ Nilforoushan, Zahra؛ Borna, Keivan (University of Tehran, 2020-06-01)
    Deciding whether a musical rhythm is good or not, depends on many factors like geographical conditions of a region, culture, the mood of society, the view of rhythm over years, and so on. In this paper, we want to make a ...

  • A Computational Criterion for the Irrationality of Some Real Numbers 

    Nasehpour, Peyman (University of Tehran, 2020-06-01)
    In this paper, we compute the asymptotic average of the decimals of some real numbers. With the help of this computation, we prove that if a real number cannot be represented as a finite decimal and the asymptotic average ...

  • Neutrosophic Soft $alpha-$Open Set in Neutrosophic Soft Topological Spaces 

    Mehmood, Arif؛ Nadeem, Fawad؛ Park, Choonkil؛ Nordo, Giorgio؛ Kalsoom, Humaira؛ Rahim Khan, Muhammad؛ Abbas, Naeem (University of Tehran, 2020-06-01)
    In this paper, the notion of generalized neutrosophic soft open set (GNSOS) in neutrosophic soft  open set (GNSOS) in neutrosophic soft topological structures relative to neutrosophic soft points is introduced.The concept ...

  • On the optimization of Dombi non-linear programming 

    Ghodousian, A.؛ Elyasimohammadi, Fatemeh (University of Tehran, 2020-06-01)
    Dombi family of t-norms includes a parametric family of continuous strict t-norms, whose members are increasing functions of the parameter. This family of t-norms covers the whole spectrum of t-norms when the parameter is ...