期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
面向科学知识发现的造血干细胞知识图谱构建研究 被引量:1
1
作者 胡正银 刘蕾蕾 +3 位作者 陈文杰 刘春江 钱力 宋亦兵 《数据与计算发展前沿》 CSCD 2021年第6期81-97,共17页
【目的】造血干细胞(HSC)是临床治疗最有效的干细胞之一,通过文献挖掘发现领域重要的知识实体、知识关系和知识路径对于HSC领域知识发现具有重要意义。知识图谱(KG)是一种新型知识组织技术,支持知识实体、知识关系和知识路径等知识单元... 【目的】造血干细胞(HSC)是临床治疗最有效的干细胞之一,通过文献挖掘发现领域重要的知识实体、知识关系和知识路径对于HSC领域知识发现具有重要意义。知识图谱(KG)是一种新型知识组织技术,支持知识实体、知识关系和知识路径等知识单元的多层次、细粒度、富语义知识组织与知识互联,被广泛应用于科学知识发现(SKD)中。【方法】本文提出了一个基于“主-谓-宾”(SPO)三元组构建领域知识图谱的框架,该框架包括文献检索、SPO提取、SPO清洗、SPO排序、知识发现模式集成和图谱构建等过程。然后,基于该框架构建了HSC知识图谱。最后,基于HSC知识图谱,介绍了“开放式知识发现”、“封闭式知识发现”与“研究主题挖掘”三种HSC领域SKD场景。【结果】结果表明,利用该框架构建的HSC知识图谱具有“使用图数据结构”、“集成知识发现模式”、“融合原生图挖掘算法”和“易于使用”等优点,可以有效地支持HSC领域知识发现。 展开更多
关键词 知识图谱 SPO三元组 科学知识发现 文献挖掘 造血干细胞
下载PDF
Beyond Logic of Discovery and Paradigmatic Consensus: A Reanalysis of the Popper-Kuhn Debate in the Philosophy of Science
2
作者 Douglas I. O. Anele 《Journal of Philosophy Study》 2011年第1期52-66,共15页
There is no patina of doubt that the central philosophical theories of Karl Popper and Thomas Kuhn concerning the nature, substance and method for acquiring scientific knowledge constitute milestones in 20th century p... There is no patina of doubt that the central philosophical theories of Karl Popper and Thomas Kuhn concerning the nature, substance and method for acquiring scientific knowledge constitute milestones in 20th century philosophy of science. Just as Popper's fundamental work on the subject, The Logic of Scientific Discovery, marked a decisive break with inductivist epistemologies, Kuhn's magnum opus, The Structure of Scientific Revolutions (1962, enlarged ed. 1970), inaugurated the coming of age of the historical turn in the philosophy of science. Some scholars seem to consider the main doctrines of both philosophers as irreconcilables or contradictories. This explains why, for example Popper and Popperians such as Imre Lakatos and John Watkins describe themselves as "critical rationalists", whereas they refer to Kuhn as an "irrationalist" or "relativist"-appellations that the latter has consistently rejected. The debate between Popper and Kuhn, especially as contained in an important work, Criticism and the Growth of Knowledge (1970), highlights some of the knotty problems connected with philosophical appraisals of science. It also demonstrates the strengths and weaknesses of logistic approaches in the philosophy of science, on the one hand, and of historically informed socio-psychological analysis of science, on the other. In this paper, we reexamine the Popper-Kuhn controversy from an experimentalist perspective. In other words, we argue that the ideas of testing and normal science can be systematically accommodated by fine-structure dissection of empirical research through which scientists learn about the world, based on the assumption that the progress of science is the growth of experimental knowledge-a fact often neglected in theory-dominated philosophies of science. Taking discovery of the cosmic background radiation by Arno Penzias and Robert Wilson as example, the paper argues that important scientific discoveries have been accomplished even in the absence of theory in any obvious sense, a situation that conflicts with the theory-dominated models of Popper and Kuhn. Thus, it offers an account of how practicing scientists learn from research to control errors and avoid blind alleys. The paper affirms, in conclusion, that going beyond the theories of Popper and Kuhn requires that philosophers of science should take what scientists learn from experiments seriously when theorising about science, by taking into account normal testing or error detection and control strategies through which scientific knowledge is acquired and extended 展开更多
关键词 logic of discovery psychology of research FALSIFICATION CORROBORATION normal science paradigm extraordinary science experimental knowledge
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部