On Rao score and PearsonX 2 statistics in generalized linear models

The identity of the Rao score and PearsonX ² statistics is well known in the areas where the latter was first introduced: goodness-of-fit in contingency tables and binary responses. We show in this paper that the same identity holds when the two statistics are used for testing goodness-of-fit of Generalized Linear Models. We also highlight the connections that exist between the two statistics when they are used for the comparison of nested models. Finally, we discuss some merits of these unifying results. Work financially supported by cofin. MIUR grants 2000 and 2002.     

In Memoriam: Emeritus Professor Henry Oliver Lancaster, AO FAA 1 February 1913 – 2 December 2001

The death, in Sydney, of Oliver Lancaster marks the end of an era in the histories of the Statistical Society of Australia, which (in its previous existence as the Statistical Society of New South Wales) he helped found in 1947, and of the Australian Journal of Statistics of which he was founding editor (1959–1971). Oliver Lancaster was Foundation Professor of Mathematical Statistics at the University of Sydney (1959–1978), where he spent his life as student and academic. During his academic career, he achieved scholarly distinction in at least four fields: mathematical statistics, medical and public health statistics, the history of medicine and of statistics, and statistical bibliography. With E.J.G. Pitman (1897–1993), M.H. Belz (1897–1975), E.A. Cornish (1909–1973) and P.A.P. Moran (1917–1988) he was part of a cohort of renowned Australian mathematical statisticians who laid the foundation of the glory days of Australian mathematical statistics. This obituary and tribute focuses on some of these aspects, within a broader historical picture.     

Justice involvement among homeless individuals with mental illnesses: Are self-report and administrative measures comparable?

Individuals with mental illnesses who experience homelessness have frequent interactions with the criminal justice system. Correctly measuring this involvement is essential to develop and evaluate the efficacy of intervention programs. Criminal justice involvement is typically assessed through administrative records or self-reported accounts. The aims of this study are to: 1) assess agreement between self-report and administrative data related to court appearances, and 2) identify individual characteristics that affect discrepancies between sources. Participants were 468 homeless persons with mental illness from the Montreal site of the At Home/Chez Soi randomized controlled trial, in Canada. Self-reported data was collected through an interviewer-administered questionnaire. Administrative data was collected through provincial and municipal court databases. Overall, agreement was good. Discrepancies were more common among those with a diagnosis of mood disorder with psychotic features, and those with a criminal history. Increased age and interviewer’s perception of sincerity and interest increased likelihood of concordance. Generally, high agreement between self-report and administrative data suggests that either source can provide reliable information. Further work to understand predictors of discrepancies could further enhance the quality of data collected through these different sources.     

西南联大时期的许宝騄与戴世光

许宝騄、戴世光是我国近现代数理统计和社会经济统计领域的两面旗帜。他们二位在上世纪30年代分别留学英国和美国，获得统计学博士和硕士学位。抗日战争爆发后，分别在1940年、1938年回到昆明，任教西南联大。在极其困难的条件下，他们不仅在算学系、经济学系系统讲授数理统计和社会经济统计等课程，而且作出了有重大国际影响的研究成果。艰苦而乐观的生活趣事既反映了当时特殊的时代背景，更彰显出他们高尚的人格品德。     

清初回族循吏张瑾史迹

明初西域人阿不都拉因善射被明太祖赐姓为张,其后裔世居扬州,清康熙年间的著名循吏张瑾是他的后代。本文对张瑾的族属、史迹进行了探讨。     

略论抗战后的粤港贸易关系(1945.9-1949.10)

粤港关系历来唇齿相依.抗日战争结束后,两地贸易曾一度恢复并得到发展.但随着全面内战的爆发,国统区社会经济分崩离析,官僚资本垄断广东对外贸易,粤港间走私活动猖獗达于失控,民间正常商贸不断萎缩而陷入困境.这一切,预示着近代粤港贸易史行将终结.     

国际官方统计的新发展

联合国统计委员会会议是国际统计界的盛会,集中反映全球官方统计的最新成果和进展。本文对联合国统计委员会第50届会议最主要的若干问题,包括《2030年可持续发展议程》的数据和指标、官方统计基本原则、国家质量保证框架、官方统计使用大数据、国民账户体系、统计用途商业登记册、价格统计、住户调查、国际比较方案等领域的新发展进行了概述,从4个方面提出了国际官方统计的新发展对中国政府统计工作的启示。     

论《左传》中巫官文化与史官文化之消长

《左传》以其张扬的理性精神,昭示着春秋时期史官文化的发展与进步,与此同时,卜筮现象的大量存在,使《左传》在一定程度上更像是巫官文化与史官文化并存的产物。本文从《左传》文本中出现的大量卜筮现象入手,分析了这一现象背后,巫官文化和史官文化彼此的消长情况。《左传》中记载的卜筮现象,正说明史官文化最终覆盖了巫官文化,成为中华民族传统文化的基础。     

Distinguishing Features of Just-in-Time Systems in the Make-to-Order/Assemble-to-Order Environment*

Few studies of just-in-time (JIT) implementation examine their significance in make-to-order manufacturing environments. This study examines the relative importance of several operating variables that are characteristic features of JIT systems within such environments in North America. The results suggest that the most salient features of JIT for make-to-order and assemble-to-order firms are the elimination of waste (in the form of time and defects), reduced setup time, reduced lotsize, and a smaller pool of suppliers. In addition, the results suggest that the use of non-domestic suppliers can possibly hinder efforts at JIT implementation of materials procurement.     

贾宝玉形象的文化张力

贾宝玉形象的独特性在于,其形象内涵既不属于西方文化,又非中国传统文化所能涵盖。他源于中国传统文化而又不是中国的儒、道所能解释:无论在思想意识、价值追求还是在思维方式等方面均与当时的世俗文化构成极强的张力冲击。这种冲击主要体现在贾宝玉与其它人物在仕途文化、情色文化上的碰撞,以及贾宝玉自身多元素文化的冲突。曹雪芹就是通过这种文化碰撞所塑造的贾宝玉形象,完成了他对中国传统文化的穿越,从而造就了一个独具魅力的艺术张力世界。