Information retrieval experience (1);
Through this period of retrieval and study, I found that my professional knowledge is still very poor and needs to be strengthened in my future study and life.
Literature retrieval is a boring thing, but it is also a very important means of learning and retrieval. We need patience, extra time, familiarity with the use of various databases, and sometimes a little software knowledge.
I used to go to Baidu and Google when I wanted to consult information. Literature retrieval has opened a new space and a new field for me, which makes it easy for me to get accurate and useful information. For example, in the past, when we designed courses, we had to consult many professional related materials. Now, we don't need to borrow so many books, reports or periodicals everywhere. We only need to input relevant information into the database, and we can get accurate and useful materials. How fast and convenient it is.
In the process of studying, I found myself easily excited. Whenever I can't find or master the consulting skills quickly, I become very anxious, which should be gradually improved in my future study. This is an unexpected situation for a college student who is about to enter the society to participate in work or scientific research. I must be strict with myself and lay a solid foundation for my future work and study.
Document retrieval is a very important and useful knowledge, and it is also a very profound knowledge. What I have learned so far is only a scratch. But through continuous learning and accumulation, with the help of teachers' teaching methods, I believe I can make progress bit by bit until I master it skillfully.
Perseverance, we will learn well, learn well, learn well!
Information retrieval experience (2);
Unconsciously, I have been taking the course of "Literature Retrieval" for one semester. Through this semester's study, I have learned a lot of knowledge that is very useful for my future life. Understand the application of China HowNet, VIP Data, Wanfang, Superstar Digital Library, China Patent Information Network and China Standard Full-text Database. Learning to use these databases has brought me great convenience in searching documents in the future.
Now is an era of information explosion, there are tens of millions of information around us, and the update speed of these information is very fast. How can we find the information we are looking for accurately and quickly? This goal can be achieved through the learned database.
Although the database has brought us a lot of convenience, we still need to study hard if we want to use it skillfully, because we should discard those useless information while looking for useful information. Before studying, I also searched some things on search engines such as Baidu, and thought it was very simple to search documents, but after a semester of study, I found that my previous idea was wrong. There are many things to know when using database to retrieve documents. For example, to understand that each database has its own characteristics, to grasp keywords and so on. The most important thing is to grasp the keywords, because the documents retrieved by inputting different keywords will be very different, and the correct selection of keywords will greatly improve the speed and quality of retrieval. So if you want to find the desired document quickly and accurately, you must choose keywords, so choosing keywords is the first thing you have to learn when using the database.
Through learning and surfing the internet, we know that the scope of VIP Chinese in Chinese retrieval is small, mainly periodicals; Wanfang full-text database of dissertations. The quality of theses in this database is relatively high, and the retrieval results are also very detailed, including: thesis title, author, major, tutor, unit, classification number, keywords, abstract, etc. Superstar e-books are very useful. You can find many classic books in the superstar library. China Patent Information Network is a very useful database for searching related information of various patents. In China standard full-text database, users can view the retrieved full-text materials for use; EBSCO, a private American company, is one of the earliest companies in the world to launch a full-text online database retrieval system, which can bring more than 65,438+000 full-text databases and secondary literature databases. The full-text database of academic journals and the full-text database of commercial resources integration are comprehensive interdisciplinary databases in the world, bringing nearly 4,700 full-text publications with high academic level, including more than 3,600 expert review publications. The collection covers almost every academic research field, and the information it brings can be traced back to 1975. The database is updated daily through EBSCOhost; SCI is an internationally renowned authoritative database. In this database, we can find papers and research results in various fields, which is convenient for us to understand the latest development of science and technology. SCI is a very useful database which contains the most basic disciplines in the world.
Good article. Springer Publishing Company is a German publishing company in the world, and its online publishing system SpringerLink includes periodicals, series, books and reference books. The materials involve mathematics, physics and astronomy, chemistry, medicine, life science, engineering technology, computer science, environmental science, geography, economics, law and other disciplines, and many of them are core journals.
In short, after this semester's study, I have a deeper understanding of the literature retrieval course and a necessary grasp of how to choose keywords. In this era of information explosion, we must master as much information as possible, enrich ourselves and improve ourselves as much as possible, so mastering the application of database is very beneficial to our future life.
Information retrieval experience (3);
By studying the course of network information retrieval, I know and am familiar with its application, from which I have gained a lot of experience.
Through the study of information retrieval, I not only really understand the profound meaning of information retrieval, but also know how to choose the right search words and form a retrieval strategy for retrieval. In the actual retrieval process, only one search word can meet the retrieval requirements. Usually, we need to use multiple search words to form a search strategy to meet the requirements of more complex topics composed of multiple concepts. For the methods of literature information retrieval, the most important thing is the choice of keywords, that is, the choice of search words and search strategies. Accurate selection of search terms can not only save time and improve retrieval speed, but also greatly improve the quality of retrieval results, making it easier to find the data or documents you need.
Book retrieval tools have the characteristics of convenient access, but sometimes they are limited by publishing time and often cannot reflect the latest information. Periodical retrieval tools can reflect the latest data, but due to the limitation of space, they cannot fully reflect the historical data of the data. Professional retrieval tool is the first choice to find subject-specific information, because it reflects the literature in the subject field, is targeted, and can save time and energy. But at the same time, we should pay attention to the use of comprehensive retrieval tools. Comprehensive retrieval tools can reflect the information of various disciplines and broaden the knowledge and horizons.
There is a lot of infiltration between modern disciplines, and sometimes you can get unexpected gains by consulting comprehensive retrieval tools, especially some domestic retrieval tools, which are often arranged by classification, and some interdisciplinary documents are often scattered in different categories, so we should pay more attention to using comprehensive retrieval tools. Attention should be paid to the combination of subject bibliography and comprehensive bibliography, subject index and comprehensive index, and professional database and comprehensive database in retrieval. Chinese retrieval tools such as China HowNet and Wanfang Data Resource System can only reflect domestic research results. We should make full use of foreign retrieval tools, such as EBSCOhost- full-text database of foreign periodicals and full-text electronic periodicals, to obtain the latest international research trends. Only by understanding the research trends at home and abroad can the paper have a higher level.
After studying information retrieval, I know all the sources of knowledge I want to master. In my life, I can find the information I want through information retrieval. This course has benefited me a lot, not only because it is a very important learning tool, but also because it is a good cultural quality that contemporary college students should have!