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About SimilaR

Terms and Conditions

  1. SimilaR is as an Internet service. The service has been designed to be very easy and intuitive to use - you provide us a list of files, choose how to compare the content and SimilaR does the rest.
  2. This portal is delivered in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  3. SimilaR is an automatic system for finding the similarity of R functions. It is aware of the R programming language syntax and structure and that is why it is robust against many types of plagiarism attacks. Typical application of SimilaR is detecting unallowed copying of code in programming classes. But it can also be used to detect code cloning in a software development process and thus be a tool for assuring a high degree of quality of source code.
  4. SimilaR is not a system for completely automatically detecting plagiarism. Detecting plagiarism can never be done in such a way. Definition of plagiarism is very fuzzy and determining plagiarism must be done based on knowing the specificity of the homework, knowing students; sometimes it is a very difficult task even for a human being. We strongly advise to manually check highlighted pairs of functions and make a decision if two functions are really similar and why. Main purpose of SimilaR is to save teachers' and teaching staff's time by identifying the pairs of R functions that are worth more detailed examination.
    One shall not solely rely on the similarity scores provided by SimilaR. These scores are just indicators of which pairs of functions should be examined more carefully. The results generated by SimilaR are certainly not a proof of plagiarism. A human being must still look at the code.
  5. The usage of SimilaR is free of charge, but every user has to create an account. This prerequisite is intended to guarantee that no student has access to the system. What is more, in this way SimilaR is provided in an easy to use, cross-platform form to all the interested users.
    Click the Sign Up button to fill out the registration form. Please note that we give accounts to users which registered with their academic mails, not users of anonymous email addresses like Hotmail, Yahoo, Gmail, etc.
  6. Please note that SimilaR compares explicitly uploaded functions only. It does not compare supplied files with any repository on the Internet.
  7. SimilaR is using a statistical learning model behind the scene. New data, including user feedback about some pairs of functions are plagiarism or not, is needed to constantly improve the learning outcomes. So a user agrees that every R function submitted to the system can be stored and used to improve the antiplagiarism detection mechanism. Authors of the SimilaR project do not use them as normal R functions, only as an example of (dis)similarity.
  8. Taking the above into account, for the submitted content you specifically give us the following permission: you grant us a non-exclusive, transferable, sub-licensable, royalty-free, worldwide license to use any content that you submit in connection with SimilaR usage.
  9. SimilaR may be used free of charge, but a user can see only first few most similar functions from his/her submission. If a user wants to see another set of functions, he/she needs to assess the pairs already shown on the screen. What is more, new submissions can only be submitted after assessing some pairs of functions from a previously created submission.
  10. A user agrees to that he/she will not exploit any bugs or vulnerability of the system including unauthorized access to database, server, submissions of other users etc.
  11. A user agrees to that he/she will inform the authors about any bug in the system.
  12. We reserve the right, at its sole and absolute discretion, to change, modify, add to, supplement or delete, at any time, any of the terms and conditions of this Agreement, any feature of the SimilaR, hours of availability, content, data, effective with or without prior notice. If any future changes to this Agreement are unacceptable to you or cause you to no longer be in compliance with this Agreement, you must terminate, and immediately stop using, SimilaR. Your continued use of the SimilaR following any revision to this Agreement constitutes your complete and irrevocable acceptance of any and all such changes. We may change, modify, suspend, or discontinue any aspect of SimilaR at any time. We may also impose limits on certain features or restrict your access to parts or all of the portal without prior notice or liability.