Database and database systems have been used widely in almost, all life activities. Sometimes missed data items are discovered as missed or null values in the database tables. The presented paper proposes a design for a supervised learning system to estimate missed values found in the university database. The values of estimated data items or data it items used in estimation are numeric and not...

For any asymptotically flat spacetime with a suitable causal structure obeying (a weak form of) Penrose's cosmic censorship conjecture and satisfying conditions guaranteeing focusing of complete null geodesics, we prove that active topological censorship holds. We do not assume global hyperbolicity, and therefore make no use of Cauchy surfaces and their topology. Instead, we replace this with t...

The many criticisms of null hypothesis testing suggest when it is not useful and what is should not be used for. This article explores when and why its use is appropriate. Null hypothesis testing is insufficient when size of effect is important, but it is ideal for testing ordinal claims relating the order of conditions, which are common in psychology. Null hypothesis testing also is insufficie...

We open up a grab bag of miscellaneous results and remarks about sets of reals. Results concern: Kysiak and Laver-null sets, Kočinac and γk-sets, Fleissner and square Q-sets, AlikhaniKoopaei and minimal Q-like-sets, Rubin and σ-sets, and Zapletal and the Souslin number. See the survey papers Brown, Cox [1], and Miller [17, 19]. 1 σ-sets are Laver null A subtree T ⊆ ω of the finite sequences of ...

In this paper we focus on two major issues that surround testing for a unit root in practice, namely: (i) uncertainty as to whether or not a linear deterministic trend is present in the data, and (ii) uncertainty as to whether the initial condition of the process is (asymptotically) negligible or not. In each case simple testing procedures are proposed with the aim of maintaining good power pro...

in our study of surface markers of iranian children affected by acute lymphocytic leukemia, the majority(80 %)had non-t, non-b, or null cell leukemia. the null- cell l e ukemia had a better p r ogno s l s as was conf irmed by o t h ers. twe l v e of our patie nts who had null cell l e ukem i a are a live and well 18 mont hs to 20 mont hs a f t e r initiat i on of the r a py. three of t he patie...

Multiple hypotheses testing is a core problem in statistical inference and arises in almost every scientific field. Given a sequence of null hypotheses H(n) = (H1, . . . ,Hn), Benjamini and Hochberg [BH95] introduced the false discovery rate (FDR), which is the expected proportion of false positives among rejected null hypotheses, and proposed a testing procedure that controls FDR below a pre-a...

Abstract As a state-of-the-art novelty detection method, Kernel Null Foley–Sammon Transform (KNFST) could identify multiple known classes and detect novelties from an unknown class via single model. However, KNFST only captures the global information of training set. The local geometrical structure is neglected. In this paper, manifold incorporated into to solve issue. First, we use graphs depi...

Linear network coding (LNC) has attracted significant attention because it has the potential to achieve the throughput capacity of a network. However, transmission systems with LNC are vulnerable to pollution attacks in which normal packets will be corrupted by malicious relay nodes and participate in normal encoding process. The null keys based error detection schemes have been designed to eff...

1 . Introduction . The following question was posed by D . Maharam : Can one divide the unit square into two or more measurable sets each of which has a non-null intersection with every product set A XB of positive measure, where A and B are subsets of the unit interval? In this paper we construct a class of such partitions of the plane, including some that retain the property under various tra...