It should be noted that the database and algorithm of each paper duplicate checking system are different, which is the most important factor affecting the detection results. Therefore, there may be differences between them in database and algorithm, which leads to different detection results.
Users can choose the appropriate system to check duplicates according to their own needs and preferences. For the first draft of the paper, I suggest that you can also use the free duplicate checking software of paper series such as paperfree, papertime and paperday to check, and the final draft should be checked by the duplicate checking system required by the school. Ensure the accuracy and effectiveness of duplicate checking.