1. Search engine recommendation.
There are several simple indicators to judge the quality of a search engine: more high-quality results, faster speed, reasonable ranking of search results and concise interface.
The search engines commonly used by Ivy League schools in Bian Xiao are Google (including its Google Scholar) and Bing, which meet all the criteria listed above. It is meaningless to list all possible search engines in detail, because people always use two or three search engines relatively regularly. In addition, as far as I know, these two search engines can be competent for searching most problems in the field of scientific research.
2. The role of search engines.
This engine is not used for in-depth literature search. If you only have a general direction, then it is reasonable to use search engines. Don't expect too much from the results of search engines. Usually, the results of search engines are superficial. But the superficial results are useful for us to have a general understanding of a field.
The information on the Internet is mixed. To obtain accurate and credible information, we need to carefully analyze the search results. I recommend two ways: one is to use the information on official website as much as possible; Second, the interests are irrelevant. To do this, you need to know the meaning of the universal URL identifier:
. Com shows that this website is a legal person, indicating that this company may have an interest tendency.
. Net is a network service company.
. Cn is very common and stands for China.
. Org is a non-profit organization. Generally speaking, many professional organizations and associations belong to this category.
. Edu means that this is an educational research institution, which may mean interest neutrality.
3. How to use search engines and databases?
Most search engines always imitate Google or make some modifications. Therefore, this paper takes Google scholar as an example to illustrate how to use search engines. Skilled use of advanced search is very important, which is a clear sign of experienced searchers. To do this, you need to learn basic logical operations.
The above is about the relevant sharing of graduation thesis data collection. I hope it will help everyone. Want to know more, please pay attention to this platform in time!