First of all, the focus of literature retrieval is to locate the theme. Dissertation is a research in a specific field or discipline, so when searching for literature, you need to know your own research topic and search by keywords, keyword combinations or subject words. When determining the theme, we can refer to the existing research problems, objectives and methods, as well as the theoretical framework and research scope of related fields, and obtain and screen relevant literature resources.
Secondly, the focus of literature retrieval is to find the classic and latest research results. When retrieving dissertations, it is necessary to pay attention to the existing classical literature and important research results in order to understand the research history and main viewpoints in this field. Classical literature usually has high citation rate and wide influence, which can provide strong support for research and demonstration. At the same time, we also need to pay attention to the latest research results and understand the latest trends and research methods in this field, so as to put our research in a broader and more cutting-edge scientific background.
Thirdly, the focus of literature retrieval is to obtain diversified literature resources. The writing of dissertations requires the comprehensive utilization of books, periodical papers, conference papers, patents, dissertations and other literature resources in order to obtain comprehensive and diversified research materials. Different types of literature resources have their own characteristics and advantages, which can complement and confirm each other, thus enhancing the credibility and scientificity of research and demonstration. Therefore, in literature retrieval, it is necessary to use various literature databases and retrieval tools, select appropriate resource types, and screen and sort them out in a targeted manner.
Finally, the focus of literature retrieval is to comprehensively evaluate and analyze the quality of literature. When retrieving dissertations, we should not only pay attention to the quantity and breadth of documents, but also pay attention to the quality and reliability of documents. Thesis writing needs to be based on reliable and authoritative research results, so it is necessary to comprehensively evaluate and analyze the literature, and pay attention to the source of the literature, the author's professional background, scientific research methods and so on. At the same time, we should also pay attention to the timeliness and popularity of the literature in order to grasp the research hotspots and trends in this field in time.
In a word, the focus of dissertation literature retrieval is to locate the theme, find the classic and latest research results, obtain diversified literature resources, and comprehensively evaluate and analyze the quality of literature. These key points will provide strong support and reference for the writing of degree thesis, make it scientific and academic, and achieve high-level research results.