Friday 13th

Is Friday the 13th bad for your health?

OBJECTIVE To examine the relation between health, behaviour, and superstition surrounding Friday 13th in the United Kingdom. DESIGN Retrospective study of paired data comparing driving and shopping patterns and accidents. SUBJECTS Drivers, shoppers, and residents. SETTING South West Thames region. MAIN OUTCOME MEASURES Numbers of vehicles on motorways; numbers of shoppers in supermarket...

Females don't have more injury road accidents on Friday the 13th

Females do not have more injury road accidents on Friday the 13th

BACKGROUND This study reinvestigated the recent finding that females - but not males - die in traffic accidents on Friday the 13th more often than on other Fridays (Näyhä S: Traffic deaths and superstition on Friday the 13th. Am J Psychiatry 2002, 159: 2110-2111). The current study used matched setting and injury accident data base that is more numerous than fatality data. If such an effect wou...

Friday / Saturday

Two-sample tests for multivariate and especially for non-Euclidean data are not fully explored. This paper presents a novel test based on a similarity graph constructed on the pooled observations from the two samples. It can be applied to multivariate data and non-Euclidean data as long as a dissimilarity measure on the sample space can be defined, which can usually be provided by domain expert...

NSIP 2005 Friday ,

This paper presents the Transform-Based Layered Query (TLQ) System, which is proposed as a new image querying scheme aiming at decreasing retrieval processing time and run-time memory consumption. The TT.,Q system contains abstract layers in both indexing and querying phases. These layers are based on linear or nonlinear transformations that reduce image and feature data dimensions. The propose...