Purpose: We seek to explore the realm of literature about digital libraries. We specifically seek to ascertain how interest in this subject has evolved, its impact, the most productive journals and countries, the number of occurrences of digital libraries, the relationships and dynamics of the main concepts mentioned, and the dynamics of metadata formats.Methods: We extracted corpora from the Google Scholar and Microsoft Academic Search bibliographic databases. We analyzed the named entities and concepts contained within these corpora with the help of text mining technologies, CorTexT in particular.Results: While the number of publications on the subject of digital libraries is increasing, their average number of citations is decreasing. China, the United States and India are the most productive countries on the subject. Literature about conservation and national libraries has gradually been replaced by literature about open access, university libraries and the relationship with users. Internet Archive is the most cited digital library in literature and continues to grow. Dublin Core is the most talked about metadata format, however the subject of metadata formats is declining in the corpus today.Conclusion: Digital libraries now seem to be reaching the age of maturity.
翻译:目标:我们试图探索数字图书馆的文献领域。我们特别要了解对这个主题的兴趣是如何演变的,它的影响,最有成果的期刊和国家,数字图书馆的出现次数,所提到的主要概念的关系和动态,以及元数据格式的动态。 方法:我们从谷歌学者和微软学术搜索文献数据库中提取了公司。我们利用文字采矿技术,特别是CorTexT,分析了这些公司中所包含的名称实体和概念。Results:虽然有关数字图书馆的出版物数量正在增加,但平均引用数量正在减少。中国、美国和印度是这个主题上最有成果的国家。关于文献保护和国家图书馆的文献保护和动态逐渐被关于开放访问、大学图书馆和与用户关系的文献取而代之。因特网档案馆是文献中引用最多的数字图书馆,并且继续增长。都柏林核心公司是谈论元数据格式的最多,但元数据格式在今天的文体中却在下降。结论:数字图书馆现在似乎已经到了成熟的时代。