Unpacking ontological security: A decolonial reading of scholarly impact

Despite the growing debate about scholarly impact, an analysis of the onto-epistemic grammar underlying impact has remained absent. By taking a different analytical approach to examining impact, we interrogate the concept through the lens of decolonial thought. We offer an empathetic review of the impact scholarship and illuminate the limits of the modern imaginary that circumscribe critiques of impact in the literature, making visible the Eurocentric and provincial horizons of modern reason underlying these critiques and impact in general. Drawing on ?ūnyatā ontological perspective, we seek to articulate from modernity imaginary’s edges and suggest imagining and being otherwise. We argue that the question of scholarly impact is intimately structured by and connected to the modern subject’s desire for ontological security.     

闻一多诗论“脚镣说”新论

要求新诗格律的“脚镣说”是闻一多诗学理论的一个卓越表达 ,其核心内容是遵循艺术规律 ,其美学追求在于诗人征服工具的快乐 ,其艺术指归是在限制中完成艺术创造 ,作用于实践则是提高新诗的艺术水准。新诗运动初期 ,许多白话诗人注重的是“白话”而不是诗 ,其基本主张是“有什么话 ,说什么话 ;话怎么说 ,就怎么说” ,结果造成了非诗化倾向 ,直接影响了中国新诗的发展 ,到 192 2年开始陷入中落。正是在这种背景下 ,新月诗派倡导格律运动 ,试图纠正初期创作中忽视艺术自律的弊病 ,最重要的就是倡导新诗的音乐美、绘画美和建筑美。其中 ,闻一多的诗论和创作起着中坚和示范的作用 ,推动着中国新诗向提高艺术的方向努力 ,并使新诗在 30年代很快发展到成熟的地步。闻一多的“脚镣说” ,无论从其所依托的理论依据、艺术原理方面去考察 ,还是从其所体现的美学追求和创作规律去分析 ,都包含着丰富而深刻的内容 ,存在着当时许多人没有意识到的真知灼见。     

基于 NS3 的 BCube 数据中心网络仿真

为了解决复杂数据中心网络仿真难题,在对 NS3 仿真工具的研究基础上,对 NS3 的路由协议进行扩充,研究使用 NS-3 网络仿真软件自动生成 BCube 网络拓扑,实现 BSR 路由协议,通过 NetAnim 可视化模块直观展示网络仿真结果,并通过 Tracing 系统收集、统计与分析网络丢包情况、端到端时延以及吞吐量等性能指标。与传统 RIP 协议、OSPF 协议进行对比,证明了 BSR 路由的优越性。该研究可为数据中心网络提供有效的参考信息,有利于简化数据中心网络仿真工作,使数据中心网络能更快地投入使用。     

On information retrieval metrics designed for evaluation with incomplete relevance assessments

Modern information retrieval (IR) test collections have grown in size, but the available manpower for relevance assessments has more or less remained constant. Hence, how to reliably evaluate and compare IR systems using incomplete relevance data, where many documents exist that were never examined by the relevance assessors, is receiving a lot of attention. This article compares the robustness of IR metrics to incomplete relevance assessments, using four different sets of graded-relevance test collections with submitted runs—the TREC 2003 and 2004 robust track data and the NTCIR-6 Japanese and Chinese IR data from the crosslingual task. Following previous work, we artificially reduce the original relevance data to simulate IR evaluation environments with extremely incomplete relevance data. We then investigate the effect of this reduction on discriminative power, which we define as the proportion of system pairs with a statistically significant difference for a given probability of Type I Error, and on Kendall’s rank correlation, which reflects the overall resemblance of two system rankings according to two different metrics or two different relevance data sets. According to these experiments, Q′, nDCG′ and AP′ proposed by Sakai are superior to bpref proposed by Buckley and Voorhees and to Rank-Biased Precision proposed by Moffat and Zobel. We also point out some weaknesses of bpref and Rank-Biased Precision by examining their formal definitions.

Within-journal self-citations and the Pinski-Narin influence weights

The Journal Impact Factor (JIF) is linearly sensitive to self-citations because each self-citation adds to the numerator, whereas the denominator is not affected. Pinski and Narin (1976) Influence Weights (IW) are not or marginally sensitive to these outliers on the main diagonal of a citation matrix and thus provide an alternative to JIFs. Whereas the JIFs are based on raw citation counts normalized by the number of publications in the previous two years, IWs are based on the eigenvectors in the matrix of aggregated journal-journal citations without a reference to size: the cited and citing sides are normalized and combined by a matrix approach. Upon normalization, IWs emerge as a vector; after recursive multiplication of the normalized matrix, IWs can be considered a network measure of prestige among the journals in the (sub)graph under study. As a consequence, the self-citations are integrated at the field level and no longer disturb the analysis as outliers. In our opinion, this independence of the diagonal values is a very desirable property of a measure of quality or impact. As an example, we elaborate Price’s (1981b) matrix of aggregated citation among eight biochemistry journals in 1977. Routines for the computation of IWs are made available at http://www.leydesdorff.net/iw.     

Toward alternative metrics of journal impact: A comparison of download and citation data

We generated networks of journal relationships from citation and download data, and determined journal impact rankings from these networks using a set of social network centrality metrics. The resulting journal impact rankings were compared to the ISI IF. Results indicate that, although social network metrics and ISI IF rankings deviate moderately for citation-based journal networks, they differ considerably for journal networks derived from download data. We believe the results represent a unique aspect of general journal impact that is not captured by the ISI IF. These results furthermore raise questions regarding the validity of the ISI IF as the sole assessment of journal impact, and suggest the possibility of devising impact metrics based on usage information in general.     

机构知识库引入Altmetrics的模式分析

[目的/意义]分析当前机构知识库中引入Altmetrics的主要模式和需要考虑的问题,为机构知识库引入Altmetrics的实践提供参考。[方法/过程]采用比较分析和案例分析方法,通过对香港大学学术库、匹兹堡大学机构知识库引入Altmetrics的具体实践进行分析,归纳机构知识库引入Altmetrics的模式以及各模式的特征和适用情形。[结果/结论]机构知识库引入Altmetrics有3种模式:嵌入式,直接嵌入已有altmetrics应用或代码;集成式,在机构知识库平台中集成altmetrics应用与数据;共享式,商业altmetrics平台与机构知识库共享对象元数据。机构知识库引入Altmetrics是机构知识库发展的趋势,模式二和模式三有融合的趋向。当前机构知识库引入Altmetrics时最重要的问题是在元数据结构层面要设计覆盖机构知识生产全过程的对象元数据结构。     

《浙江医学》1991—1995年载文和引文分析

采用文献计量分析法,对《浙江医学》１９９１－１９９５年刊载的文章及其引文进行回顾性分析,计算年载文量、平均信息量指数、总引文量、篇均引文量、报道时滞、引文时滞、文献半衰期、衰减系数,分析所载文章的内容及报道重点、作者群分布、引文类型和语种．从情报学角度为评价《浙江医学》提供参考性的数据     

Integrating moving average control procedures into the risk-based quality control plan in small-volume medical laboratories

IntroductionThe modern approach to quality control (QC) in medical laboratories implies the development of a risk-based control plan. This paper aims to develop a risk-based QC plan for a laboratory with a small daily testing volume and to integrate the already optimized moving average (MA) control procedures into this plan.Materials and methodsA multistage bracketed QC plan for ten clinical chemistry analytes was made using a Westgard QC frequency calculator. Previously, MA procedures were optimized by the bias detection simulation method.ResultsAspartate aminotransferase, HDL-cholesterol and potassium had patient-risk sigma metrics greater than 6, albumin and cholesterol greater than 5, creatinine, chlorides, calcium and total proteins between 4 and 5, and sodium less than 4. Based on the calculated run sizes and characteristics of optimized MA procedures, for 6 tests, it was possible to replace the monitoring QC procedure with an MA procedure. For the remaining 4 tests, it was necessary to keep the monitoring QC procedure and introduce MA control for added security.ConclusionThis study showed that even in a laboratory with a small volume of daily testing, it is possible to make a risk-based QC plan and integrate MA control procedures into that plan.     

开放学术信息资源环境的挑战及其应对策略

提出开放学术资源的挑战及应对措施的分析框架,建议图书馆积极支持开放出版并在开放期刊选择、资助政策和论文处理费控制等方面发挥主导作用;提出基于开放资源环境的层级复合馆藏策略,建议充分依靠开放环境提供普遍检索,同时选择关键资源定制个性化服务和保障长期保存,并积极将本地资源融入数字化开放环境。