1. Duplicate checking scope: The duplicate checking system of HowNet mainly checks Chinese documents, including dissertations, periodical papers, conference papers and newspaper articles. For English documents, HowNet duplicate checking system also has certain duplicate checking ability, but it may not be as accurate as Chinese documents.
2. Duplicate checking algorithm: HowNet duplicate checking system uses advanced natural language processing technology to semantically analyze the text content and judge whether there is plagiarism. Specifically, the duplicate checking algorithm will compare the text to be detected with the documents in the database and calculate the similarity, so as to judge whether there is plagiarism.
3. Duplicate checking threshold: The duplicate checking system of HowNet will set different duplicate checking thresholds according to different literature types and subject fields. Generally speaking, the higher the duplicate checking threshold, the higher the allowable similarity; The lower the threshold of repeated inspection, the lower the allowed similarity. For dissertations and periodical papers, the threshold of duplicate checking is usually low to ensure academic integrity.
4. Repetition rate calculation: The duplicate checking system of HowNet will calculate the repetition rate of the text according to the duplicate checking result, that is, the proportion of plagiarized parts to the total number of words. The higher the repetition rate, the more serious the plagiarism. Generally speaking, a text with a repetition rate of more than 20% may be considered plagiarism.
5. Plagiarism source labeling: When the duplicate checking system of HowNet detects plagiarism content, it will label the plagiarism source, including the original title, author, source and other information. This helps the author to understand the plagiarism so as to correct and improve it.
6. Review: In order to ensure the originality of the paper, the author is advised to review the paper several times before submitting it. After each duplicate check, the paper is revised and improved according to the duplicate check results until the repetition rate meets the requirements.
In a word, the duplicate checking rules of HowNet mainly include duplicate checking range, duplicate checking algorithm, duplicate checking threshold, repetition rate calculation, plagiarism source labeling and so on. Following these rules can effectively detect the originality and plagiarism of academic papers and ensure academic integrity.