Measuring Search Engine Quality

The effectiveness of twenty public search engines is evaluated using TREC-inspired methods and a set of 54 queries taken from real Web search logs. The World Wide Web is taken as the test collection and a combination of crawler and text retrieval system is evaluated. The engines are compared on a range of measures derivable from binary relevance judgments of the first seven live results returned. Statistical testing reveals a significant difference between engines and high intercorrelations between measures. Surprisingly, given the dynamic nature of the Web and the time elapsed, there is also a high correlation between results of this study and a previous study by Gordon and Pathak. For nearly all engines, there is a gradual decline in precision at increasing cutoff after some initial fluctuation. Performance of the engines as a group is found to be inferior to the group of participants in the TREC-8 Large Web task, although the best engines approach the median of those systems. Shortcomings of current Web search evaluation methodology are identified and recommendations are made for future improvements. In particular, the present study and its predecessors deal with queries which are assumed to derive from a need to find a selection of documents relevant to a topic. By contrast, real Web search reflects a range of other information need types which require different judging and different measures.     

Invisible children? The need for support groups for siblings of disabled children

Previous research and first-hand experience suggest that a child with a disability can have a profound effect on family life. Although the need for sibling support has been acknowledged in legislation, the implications for non-disabled siblings remain unclear. In this article, Angie Naylor, lecturer in psychology, and Phil Prescott, senior lecturer in childhood and youth studies, both based at Edge Hill, review a number of key themes emerging from the literature on sibling support. They go on to report the findings from an in-depth study of one sibling support group. The work was carried out in partnership with Barnardo's in the north-west of England and involved setting up a sibling support group, in response to an analysis of local need, and evaluating its impact. This research indicates a clear need for further service provision to meet the needs of the siblings of disabled children who attended the scheme. Angie Naylor and Phil Prescott argue for a reinvigorated debate about the needs of such children and champion the importance of listening to children and valuing what they have to say. The results of this small-scale evaluation project have clear implications for future research and, potentially, for policy and practice.     

南京体院内部审计工作现状浅析

用献资料法和比较法对南京体院的内部审计工作研究后，发现近5年来，体院的内部审计在财务审计方面取得了一定的成绩，具有自身的特色，为学院制定制度和加强财务管理提供了有力的依据。机构的改革、审计人员素质的提高和审计领域的推广，将有利于体院内部审计发挥更大的效能。     

关于我国离婚法定条件的探讨——混合标准还是单一标准

关于离婚法定条件的探讨贯穿于我国婚姻法发展的整个过程。从1950年新中国第一部婚姻法到1980年婚姻法的重新制定,乃至2001年婚姻法的修订,都是一个探索的过程,但探索的结论并没有很大的突破,仍是将离婚法定条件定为感情或婚姻破裂的单一标准。出于完善我国婚姻立法中的法理基础的需要,笔者以为应在我国婚姻立法中确立混合标准的离婚法定条件。     

对中长跑运动员训练机能评定的实验研究

观察了不同训练水平男子中长跑运动员不同强度训练负荷后血清免疫球蛋白水平的变化。结果提示:大强度训练可降低男子中长跑运动员机体的体液免疫水平,其测定有助于掌握运动强度和负荷量,为合理安排训练计划提供依据。     

体育人身伤害侵权纠纷的法律适用探讨

体育伤害是一种民事违法行为 ,除非法律规定有明确的违法阻却抗辩事由 ,适用侵权行为法的一般规定。体育伤害是一种特殊的人身伤害 ,应平衡各方利益 ,进行法律规范。风险自负理论可以说明体育伤害的免责范围与归责基础 ,我国目前可采用单行立法方式填补法律漏洞 ,在没有立法的情况下可以在实践中以调解为主灵活处理 ;体育伤害受体育保险和社会保障制度与侵权法共同调整 ,不同国情各有侧重     

日本体力测量的改革

对20世纪末日本的体力测量改革的背景、目的和改革后的新体力测量方案的构成和特点进行了分析,结合我国体质测量中存在的问题,指出可以借鉴日本的经验和研究成果,加强体质测量的基础研究,提高体质测量的质量。     

试论档案管理的法制化与现代化

档案管理的法制化与现代化是档案管理的两个关键性问题。以执行《档案法》为基础 ,以档案管理现代化为目标是档案管理的有效机制。     

海口市中小学生身体素质评价标准的制定

为了评价海口市中小学生身体素质,提高他们参加体育锻炼的积极性,以1995年海口市中小学生2400人体质调研数据为样本,使用百分位数法制定了海口市中小学生身体素质评价标准.     

网络信息环境下馆藏评价标准的变革

文章以现代图书馆馆藏建设的变革为切入口，评析了传统馆藏评价标准。这些基础上重点探讨了网络信息环境下馆藏评价标准的变革。