turnitin相似度检测系统入口

Turnitin 学术报告英文文章查重原理和规则算法

Turnitin is an online plagiari detection service used by many universities and colleges. Its main purpose is to identify and prevent plagiari by comparing submitted texts to its large database. It uses a sophisticated algorithm to detect similarities between submitted texts and documents stored in its database.

1.Text Comparison, Turnitin compares the submitted text with its huge database to identify and prevent plagiari. It then analyses the text for similarities between the submitted documents and the database. This is the core of Turnitin’s algorithm.

2.Analysis of Similarities, The algorithm then determines the level of similarity between the submitted text and documents stored in its database. The level of similarity is based on the number of words and phrases that are shared between the documents.

3.Generation of Report, Once the analysis is complete, Turnitin generates a report indicating the level of similarity in the submitted text. The report also provides detailed information about the sources of the similarities, allowing users to determine if the text was plagiarized.

Turnitin 学术报告英文文章查重原理与规则

Turnitin is an academic report plagiari detection service provider for academic institutions and businesses. It uses a text-matching algorithm to compare submitted documents to a vast database of web content, archived student papers, periodicals and academic works to detect plagiari.

The text-matching algorithm used by Turnitin determines the similarity of new documents to existing sources in its database by comparing text strings. The algorithm detects similarities in text strings that may not be exact matches. This means that even if a student has paraphrased or reworded an existing source, the text-matching algorithm may still detect a match.

Turnitin also uses a proprietary algorithm, called the Similarity Index, to measure the similarity of a document to other documents in its database. The Similarity Index is a percentage score that reflects the amount of text that matches other sources in the database, as well as the number of passages that are similar.

Turnitin compares the submitted paper to the sources in its database in several ways. Firstly, it searches for direct quotes, matches and phrases in the paper. Secondly, it searches for passages that he been paraphrased or reworded but still use similar ideas and phrases. Thirdly, it searches for potential instances of plagiari by searching for passages that he been copied word-for-word with no changes.

To ensure accuracy, Turnitin does not rely solely on the Similarity Index. It also provides an “Originality Report” that provides a more detailed analysis of the submitted paper. The Originality Report shows the authors of the sources that matched the submitted paper, as well as matching text strings from those sources. This allows instructors to easily identify any potential instances of plagiari.

In addition, Turnitin also allows instructors to customize the settings for their own classes to determine the level of similarity that is considered acceptable. For instance, instructors can set a maximum similarity score for a paper and choose to exclude particular sources from the search. This allows instructors to tailor the Similarity Index to their own academic standards.

Overall, Turnitin is a powerful tool for educators to detect academic cheating and plagiari. It uses a text-matching algorithm to compare submitted documents to a vast database of sources, providing instructors with an easy-to-use and comprehensive tool to monitor their students’ work.