Plagiarism is a serious problem that needs to be dealt with seriously. NUS has partnered with Turnitin to provide a service to detect plagiarism in writing for free. Below is how.

1) visit


2) click on the blue button [Click here to log in to your Turnitin account] to log in, and you will be directed to the following page.


3) Use your UNIX id and password to login, and you will arrive at the following page


4) To perform a simple check, you need to create a class and its assignments as an instructor. Once an assignment is created, you can then use the submit paper link to submit a paper as a submission to this assignment as follows.


5) Once you click on the view link, you can see the details of the assignments submitted below (the two images below are taken from


6) Now, look at a particular assignment submission, the result looks like the following. By looking at this, you can get an idea of how much of the article is copied.


Note, the process of check is very quick, typically only takes a few minutes.

Plagiarism can be either literal or intellectual, according to M. Jagadesh Kumar.

  • Literal plagiarism refers to the copy of words and sentences without acknowledge the source
  • Intellectual plagiarism refers to the copy of idea without acknowledge its source.

I want to conclude by borrowing a paragraph from Kumar’s original blog post: “Students beware! When you indulge either in literal plagiarism or intelligent plagiarism either knowingly or unknowingly, you are putting all the authors in the manuscript at risk. Detection of plagiarism after publishing the paper can result in serious consequences to the organization where you work, and can severely damage your reputation and that of the co-authors.” 

For more information about plagiarism, you can read Kumar’s blog post @

Written by Shengdong Zhao

Shen is an Associate Professor in the Computer Science Department, National University of Singapore (NUS). He is the founding director of the NUS-HCI Lab, specializing in research and innovation in the area of human computer interaction.