The paper detection system of HowNet adopts advanced fuzzy algorithm, which can identify the overall outline of the paper. If a sentence changes only a single word, it can also identify and detect repetition. Plagiarism is usually determined by detecting the repetition of 13 consecutive characters. It is mainly based on multi-stage rapid detection of digital fingerprints. Each submitted paper is assigned digital fingerprint processing, and then compared with the literature in the database. The system supports digital fingerprint detection from word to sentence and chapter level, and the detection results are very accurate. Repeated sentences will be marked in red.

Wanfang paper detection system

Wanfang Paper Detection System has developed a "sliding window low-frequency feature algorithm" to provide paper similarity detection service, which can detect and identify small changes in papers in batches. Plagiarism is generally judged by detecting the repetition of 15 consecutive characters, and the detection speed is super fast.

PaperPP paper repeat inspection system

The comparison database of PaperPP paper duplicate checking system contains 65.438+0 billion+Internet data and 20 million academic papers. It adopts the industry-leading intelligent semantic recognition technology, and its algorithm is rigorous, efficient and accurate, which is consistent with the algorithm of paper duplicate checking system commonly used in schools.

Transfer tin foil detection system

Turnitin paper detection system mainly compares the similarity of documents uploaded by users with cloud database and web resources in Turnitin system, so as to get a similarity score. Usually, plagiarism will be judged when five words are repeated, which is mainly used to detect foreign papers.

Paper duplicate checking standard: the qualified standard of paper duplicate checking rate is generally less than 30%. The higher the educational background, the stricter the requirement of paper duplicate checking rate. For example, the qualification standard of duplicate checking rate of undergraduate thesis is generally required to be within 25%, master thesis is generally required to be within 15%, and doctoral thesis is generally required to be within 5%. The same is true for journals and newspapers to review submitted papers. The higher the level of the journal, the higher the quality of the papers published on it, and the stricter the requirements for the duplicate checking rate of the submitted papers.