一、情报浓缩的基本概念情报浓缩是科技情报工作的重要手段,也是情报学研究的基本理论问题。科技情报工作的科学技术在许多方面离不开情报浓缩。所谓情报的浓缩,就是目录、索引、文摘等二次文献和缩述、年鉴、手册等三次文献的编写工作的总和。编写二次文献和三次文献是在对一次文献的分析综合加工的基础上,将其中所含的情报加以高度提炼和浓集,以简明扼要的符号系统或语言形式加以报导的工作,在这一工作中总是伴随着文本体积或情报量的压缩或减小。实际上,“浓缩”这一术语广泛地应用于不同的知识领域一哲学、信息论、物理学、数学、语言学、情报学、目录学等等。在这些众多的领域中它很少有不同的意义,而在所有的情况下都意味着对一定对象的数量的 First, the basic concept of intelligence concentration Information concentration is an important means of scientific and technological intelligence work, but also the basic theoretical issues of information science research. Science and technology in science and technology work can not be separated from intelligence in many aspects. The so-called concentration of information, is the directory, index, digest and other secondary literature and abbreviations, annuals, manuals and other three times the sum of the preparation of the literature. The preparation of secondary documents and three documents is based on a comprehensive analysis of the literature processing, the intelligence contained therein is highly refined and concentrated in a concise system of symbols or language to be reported in the work, in this Work is always accompanied by the compression or reduction of text size or intelligence. In fact, the term “enrichment” is widely used in different fields of knowledge such as philosophy, information theory, physics, mathematics, linguistics, informatics, bibliography and so on. In many of these many fields it has very little meaning, and in all cases it means the number of certain objects