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1.
G. A. Dnoenosova 《Scientific and Technical Information Processing》2012,39(4):220-228
The essence of a document, as well as of any other object (thing) lies in its features, properties, and functions. The works that focus on document-theory problems do not seem to distinguish between these concepts and they thus need to be put in agreement. The purpose of this article is to define the essential properties of a document as an information object and social phenomenon. 相似文献
2.
G. A. Dvoenosova 《Scientific and Technical Information Processing》2013,40(1):17-22
The essence of a document, like any other object (thing), manifests itself through its signs, properties, and functions. The works that are devoted to the problems of document theory do not trace clear boundaries between these concepts, owing to which it is necessary to unify them. The goal of this paper is to perform a functional analysis of a document as an information object and social phenomenon. 相似文献
3.
20世纪70年代末至2001年我国一些学者对文献分类学研究对象问题进行了积极的探讨与争鸣，归纳起来，主要有九种观点，至今尚 未达到共识。运用科学方法，确定文献分类学的研究对象是文献分类领域中一个亟待解决的问题。 相似文献
4.
E. A. Pleshkevich 《Scientific and Technical Information Processing》2013,40(4):245-252
This paper analyzes contradictions in identifying the definition of a document as an object of study. The origin and evolution of the epistemological and ontological definitions of a document are shown. The methods for solving these documentary contradictions are investigated and their solution by developing the theory of documentary information and documentary operations is proposed. 相似文献
5.
在《文献主题标引规则》中,文献主题因素一般由主体因素、通用因素、空间因素、时间因素和文献类型因素构成。其中,文献类型因素是指文献主题中表示文献编撰形式、写作形式、内容深浅程度、用途等方面的概念。尽管文献类型因素只是文献标引的辅助标准,但对读者选择和利用文献具有重要的参考价值。在进行文献主题标引时,标引者应根据文献内容的深浅程度、阅读对象、编纂形式、写作形式、用途等具体情况选择恰当的文献类型表达形式。 相似文献
6.
[目的/意义]传统的关键词自动抽取将摘要看成一个整体,常以候选词的出现频次等非语义信息构建特征,并未考虑学术文献摘要中目的、方法、结论等各个结构功能语义蕴含的差异性。本文以中文文献为研究对象,探讨候选词所在的结构功能域对关键词抽取的影响和作用。[方法/过程]本文将文献标题和摘要文本共分为4个结构功能域,在传统的词频、词长、词跨度等基准特征上,融合了基于BERT的语义特征和结构功能特征,并以不同的特征组合方式,使用图书情报领域的中文学术文献,基于分类模型进行关键词自动抽取实验。[结果/结论]实验结果表明,融合结构功能特征后,关键词抽取效果整体提升了6.82%,证明了学术文献摘要结构功能的识别形成的结构功能特征对关键词抽取效果的提升有良好作用。 相似文献
7.
This paper describes features and methods for document image comparison and classification at the spatial layout level. The methods are useful for visual similarity based document retrieval as well as fast algorithms for initial document type classification without OCR. A novel feature set called interval encoding is introduced to capture elements of spatial layout. This feature set encodes region layout information in fixed-length vectors by capturing structural characteristics of the image. These fixed-length vectors are then compared to each other through a Manhattan distance computation for fast page layout comparison. The paper describes experiments and results to rank-order a set of document pages in terms of their layout similarity to a test document. We also demonstrate the usefulness of the features derived from interval coding in a hidden Markov model based page layout classification system that is trainable and extendible. The methods described in the paper can be used in various document retrieval tasks including visual similarity based retrieval, categorization and information extraction. 相似文献
8.
基于地方文献的史料性和地方性特征,结合海南地方文献资源建设的工作实践,作者构思了从地方的历史维、地域维和资源维三种角度,建设具有历史价值、地域价值和文献价值的地方文献资源体系的三维架构理论,并以海南地方文献为例,运用三维理论描述了地方文献体系的构建,对图书馆进行地方文献资源建设具有指导意义。 相似文献
9.
本文力求体现黄河三角洲地方文献整合与开发的必要性,阐述了黄河三角洲地方文献的使用价值,对黄河三角洲地方文献整合的对象进行了深入分析,同时也提出了黄河三角洲地方文献开发的途径。 相似文献
10.
从学科概念、学科研究内容、学科研究对象和应用等方面，深入剖析近年来出现的关于文献分类学研究对象的一种新观点，提出自己对这个问题的不同认识，并在此基础上，概括文献分类学研究的主要内容，从全新的视角阐述文献分类学的学科定义。 相似文献
11.
周文骏教授文献交流学说的理论建树管窥 总被引：2，自引：0，他引：2
周文骏教授的《文献交流引论》是上个世纪80年代图书情报学界引领潮流的代表作,是对文献交流学说作了科学阐释的开创性论著,在现代图书馆学、文献学发展史上有着里程碑的意义。文献交流学说的理论建树在于:提出了交流是图书馆学与情报学共同的理论基础;确立了文献交流学的研究对象;揭示了文献的本质。这就为研究文献学理论开辟了一条新的途径,并促进了该学科体系的不断更新与完善。 相似文献
12.
面向数字图书馆的文献提供服务这一特定应用场景,文章提出基于Handle架构的D—DOIs解决方案,通过对文献传递行为的唯一标识,结合数字水印和二维码技术,实现对数字对象传播的持续追踪。 相似文献
13.
We consider a multi-stage retrieval architecture consisting of a fast, “cheap” candidate generation stage, a feature extraction stage, and a more “expensive” reranking stage using machine-learned models. In this context, feature extraction can be accomplished using a document vector index, a mapping from document ids to document representations. We consider alternative organizations of such a data structure for efficient feature extraction: design choices include how document terms are organized, how complex term proximity features are computed, and how these structures are compressed. In particular, we propose a novel document-adaptive hashing scheme for compactly encoding term ids. The impact of alternative designs on both feature extraction speed and memory footprint is experimentally evaluated. Overall, results show that our architecture is comparable in speed to using a traditional positional inverted index but requires less memory overall, and offers additional advantages in terms of flexibility. 相似文献
14.
This paper analyzes the recently approved GOST R 7. 095–2015. Electronic Documents. Main Types, Output Information, and Technological Characteristics national standard that considers an electronic document as a component of librarian and archival funds, as well as formulating the signs that permit an electronic object to be attributed to the class of documents. The type of an electronic document determines its functionality, which in turn causes the technological requirements for the material implementation of the document (in particular, the requirements for formats). Due to the specificity of data processing in the electronic environment, an electronic document exists as many equivalent implementations and any work with it, including displaying, is the continuous creation of these implementations. In this regard, the technological operation of copying leads not to creating a document of a new type (a “copy”) but only to the origin of a new implementation that is equivalent to any other. Hence, there is a need for a set of identification characteristics (attributes) for electronic documents. 相似文献
15.
建立有特色的高校文献资源体系——关于专题文献资源建设的一点设想 总被引：7，自引：1，他引：6
搞好图书馆建设，一直是图书馆工作的一个重要组成部分。就地方特色文献资源的组织建设做了初步探讨；对于建立特色的文献资源体系，如何进行特色立项，收集、整理地方特色文献资源建设的思路，做出本馆的特色文献资源等进行了探讨。 相似文献
16.
G. N. Shvetsova-Vodka 《Scientific and Technical Information Processing》2007,34(4):206-211
Although the definition of a document has been the subject of a vast number of works, analysis of the latest publications shows that the question remains controversial. In this article the two definitions of “document” accepted as the broadest ones, i.e., the principal and conventional ones, are taken for examination. The principal definition of a document starts from the document as a part in the social information-communication process, therefore, having its place in it and performing a function that is major, and obligatory for the document. The conventional definition limits the scope of this concept, mostly in terms of material and characters, with allowance for specific features in the operation of documental communication systems. 相似文献
17.
针对我国档案学界关于文件中心是过渡性文件保管机构的认识,本文认为文件中心不具有过渡性,但具有中间性,具有过渡性的应该是文件中心保管的文件.我们往往将文件中心的中间性与文件中心文件的过渡性相混淆.实际上,文件中心的性质和文件中心保管对象的性质是有区别的. 相似文献
18.
本文提出一种面向聚类主题的文本特征表示方法,即以聚类的主题概念来刻画文本的特征向量,将文本描述提升至语义层次.首先,通过聚类,形成一组以向量形式表达的隐含主题概念,再将基于词条空间的文本特征向量投影至这组主题概念,以隐含的主题概念来描述文本.实验分析表明,建立在概念空间之上的文本向量实质上是文本矢量与主题概念的关联度,能够突出表现文本内容的主题特征,更好地反映文本的语义内容,从而有效提高模型在文本检索与分类等领域的应用性能.而基于聚类形成的概念空间的维数由于可主观调整,又能有效地约减概念空间的维数,提高模型的应用实效. 相似文献
19.
文章讨论数字化文献的组织形式和语义网的本体论意义。在文献组织中讨论了元数据和对象的关系以及对象的本体认识，语义网讨论了实用分类系统以及语义网的智慧发展趋势，并以此为基础阐述了世界、数字对象以及语义网络三者之间的关系。 相似文献
20.
明代《孔府档案》在形成、流转的过程中,产生了不同的文书形态,这些文书形态可作为考察明代孔府日常文书制作、行政事务处理实态的切入点。明代《孔府档案》中的文书形态有草稿、定稿、正本、存本、副本及抄件,不同文书形态的形制、内容、施用对象有一定差别,其认定要件也各不相同。厘清档案中的文书形态,既能方便对其进行整理,亦能有利于判定其史料价值及各方面的利用。此认定方法具有共通性,同时适用于对其他档案的文书形态认定。 相似文献