Serials Clutter in Online Catalogs

Abstract

Finding and deciphering serials records in online catalogs is a challenge to many library users. To understand and analyze these challenges, the author conducted searches for scientific journal titles in the online catalogs of Committee on Institutional Cooperation (CIC) libraries. The first part of the study measures the difficulty of retrieving serial records from online catalogs comparing one-word versus multiple-word titles. The second part analyzes displays for complexity by measuring the length of the complete record and the length of the holdings statements. These data show the complexity of displays and indicate the potential confusion that these displays may induce in library users.     

Optimal non-diagonal-type estimators in linear regression under the prediction error sum of squares criterion

This article considers the notion of the non-diagonal-type estimator (NDTE) under the prediction error sum of squares (PRESS) criterion. First, the optimal NDTE in the PRESS sense is derived theoretically and applied to the cosmetics sales data. Second, we make a further study to extend the NDTE to the general case of the covariance matrix of the model and then give a Bayesian explanation for this extension. Third, two remarks concerned with some potential shortcomings of the NDTE are presented and an alternative solution is provided and illustrated by means of simulations.     

美国高等教育质量认证机构及其活动特征研究

美国高等教育质量认证活动是非政府、自愿的民间行为,但其认证活动却因科学客观、公正严明而享誉世界。究其原因,笔者认为美国高等教育质量认证机构采取的种种手段、方式方法对质量产生了保证作用,如权威的资格认可、认证机构专家的多元构成、认证标准的个性化和科学规范的操作程序等,学习和借鉴美国高等教育质量认证机构及其活动的特征将有益于我国构建科学、规范的教育质量评估制度。     

科学发展观的经济功能——以诺思的意识形态理论为视角

以诺思意识形态理论为视角,科学发展观是一种成功的意识形态,它能在节约人民对于党执政合法性地位的认同成本、减小制度转轨与实施的成本代价、克服经济活动中的"搭便车"行为、节约用于人民群众的激励成本以及消除人们参与市场经济活动的摩擦成本等方面发挥积极的作用.     

Uniform asymptotics for ruin probability of a two-dimensional dependent renewal risk model

ABSTRACT

In this paper we consider the tail behavior of a two-dimensional dependent renewal risk model with two dependent classes of insurance business, in which the claim sizes are governed by a common renewal counting process, and their inter-arrival times are dependent, identically distributed. For the case that the claim size distribution belongs to the intersection of long-tailed distribution class and dominant variation class, we obtain an asymptotic formula, which holds uniformly for all time in an infinite interval. Moreover, we point out that the formula still holds uniformly for all time in an infinite interval for widely dependent random variables (r.v.s) under some conditions.     

“资本主义的基本矛盾与经济危机”教学“三部曲”

教学＂三部曲＂即＂讲＂、＂看＂、＂议＂三个教学环节,＂讲＂即导学和精讲,＂看＂即观看视频资料,＂议＂即议论和讨论。三者具有内在的统一性,＂讲＂是＂看＂和＂议＂的基础,是教学过程的根本;＂看＂是＂讲＂的延伸、＂议＂的基础,是教学过程的重要部分;＂议＂是＂讲＂和＂看＂的升华,是教学过程的精髓。在运用＂三部曲＂教学法时,要处理好教学中的普遍性与特殊性的关系,要实现知识传授与思想教育的统一。     

网络新闻道德失范问题研究

伴随着互联网技术的不断发展，网络新闻以其独有的传播方式，逐渐改变着传统媒体的传播格局，并且也由此逐渐产生了侵权与虚假新闻等网络新闻道德失范方面的问题，这些问题阻碍了网络新闻的健康发展。针对网络新闻道德失范中存在的具体问题，在对其原因进行充分分析的基础之上，提出了有实效性的应对策略，以期推动网络新闻道德建设不断向前发展。     

Engendering Global Democracy

The inadequacies of hegemonic liberal democratic ideas and institutions have been exposed by feminist theorists focusing on the marginalisation of women and by global theorists examining the impact of globalisation. These theorists have developed two distinct sets of reconstructive strategies that, until very recently, have remained in ignorance of each other. Further, both feminist and global democratic schemes have been dogged by problems in terms of their theorisation of power, politics, agency and change. Recent feminist arguments about citizenship and governance go some way to bringing together concerns about gender inequality and globalisation, but they remain centred on states and the states-system as vehicles for democratic representation and participation. This article argues that a more radical reconstructive strategy can be derived from debates about the democratisation of feminism itself. Drawing on the responses of black and third world feminists to racism in the white-dominated feminist movement, and examining their influence on efforts to organise transnationally, the article points to innovative ways of thinking about power, politics, agency and change. Together these amount to a democratic framework which has applicability beyond feminist organising and which confronts the marginalisations of both gender and globalisation.     

Planning for the 1950 Censuses of Population and Agriculture

The change from the z of “Student's” 1908 paper to the t of present day statistical theory and practice is traced and documented. It is shown that the change was brought about by the extension of “Student's” approach, by R.A. Fisher, to a broader class of problems, in response to a direct appeal from “Student” for a solution to one of these problems.     

k-POD: A Method for k-Means Clustering of Missing Data

The k-means algorithm is often used in clustering applications but its usage requires a complete data matrix. Missing data, however, are common in many applications. Mainstream approaches to clustering missing data reduce the missing data problem to a complete data formulation through either deletion or imputation but these solutions may incur significant costs. Our k-POD method presents a simple extension of k-means clustering for missing data that works even when the missingness mechanism is unknown, when external information is unavailable, and when there is significant missingness in the data.

[Received November 2014. Revised August 2015.]