Crot · 2020. 2. 2. · Crot usage Crot is software for plagiarism detection and prevention. Apart...

(c) Crot: Anti plagiarism solutions

Crot

Anti plagiarism solutions

Desktop version

Installation

instructions

&

Tutorial


This document is under development.

Please send all your enquiries to

moodlecrot[@]gmail.com


Contents

Installation ................................................... 4 Crot usage .................................................... 5 Local search ............................................... 5 Web search ............................................... 11 Internet Compilation Report .................. 13


Installation There are two options to install Crot Desktop:

First, if you already have MS SQL Server 2005 or higher installed in your system, you

may want to download an installation package that includes only core components (~8 Mb).

Keep in mind that during setup Crot gives system administrator’s rights for all users of the SQL

Server.

In other case you should download the full installation package, which includes MS SQL

Server 2005 Express Edition (~55 Mb). After downloading execute the installer and the wizard

will guide you through the setup process.


Crot usage Crot is software for plagiarism detection and prevention. Apart from this feature it could be used

as documents storage.

Crot allows you to perform two types of analysis:

Search within the local database of documents. For example you can keep your students’

essays to prevent local plagiarism.

Web search. Using Microsoft Live Search engine Crot searches the Internet to detect

plagiarism.

Let’s go through some basic usage scenarios.

Local search

Go to Start->Programs->Siberia soft->Crot Desktop. The login dialog will be presented. Choose

the server where you installed Crot database to and press Connect button.

After successful login you will be presented with the list of folders and documents in the Crot

database. Meantime it is empty.


Now let’s create new folder to store documents. Right click on the left pane and choose

New->Folder. Type in folder name (for example, “WRI 101 Essays”) and press Enter.

The next step is to add some documents to the database. Within the Crot folder (by default it is

Program Files->Siberia soft->Crot desktop) you can find several test documents (essay1.doc,

essay2.doc, essay3.doc). Documents essay1.doc and essay2.doc are taken from two Wikipedia

articles. The third one is combined from first two documents. To add documents into the system


you have two options – first you can drag and drop them on the documents list (right pane), or go

to the Document menu and choose Add document... You will be presented with Add submission

document dialog box.

Choose document’s author. If you need to manage (add/edit/delete) authors, press Edit authors…

button. Type in document title and the file location, or press Browse button to find the file.

Optionally you can add some comment for the document. Press OK button.

To confirm that the documents have been imported properly, choose Document->View

document, or double click on a document in the documents list.

Now we are ready to make similarities report. In the documents list choose the document you

want to include in the report (you can press Ctrl-A to select all documents, or press and hold Ctrl


button to choose individual documents). And choose Document->Matches report…, or press

Ctrl-R.

You will be presented with the options for the matches report. You can choose to check selected

documents against all documents in the database (might be slow), documents downloaded from

the Internet (for this report we first need to perform web search), or only against documents from

particular folders.

Press OK to build matches report. This process can take some time (depends on you system’s

performance, number and size of the documents in the database), so be patient. Eventually the

matches report will be shown.


Here for each document selected for the report all documents with certain amount of common

parts (matches) are shown. In our example essay2.doc has 100% match with essay3.doc (because

essay3.doc is combined from essay1.doc and essay2.doc). You can change Show threshold value

and press refresh button to exclude insignificant matches. Optionally you can print this report or

export it to .pdf or .xls formats. In order to do this press the button with the printer icon.

Close this window. Now to confirm plagiarism double click on some document in the matches

report. You will be presented with side-by-side view.


Here on the left side you can find the list of common parts. Also side by side comparison is

presented with common parts highlighted in red. To save one of these two documents with

common parts numbers and highlighting, press save button on the toolbar.


Web search

Now let’s see the second feature of the system – web search. Close matches report and select the

documents you want to analyze against Internet. Keep in mind that this task could be very traffic

intensive. Choose Document->Web search… You will be presented with the wizard that will

guide you through the search process. Press Next to proceed to the Web Search Settings page.

You can leave default settings, or fine tune the process by increasing for example the number of

search and download threads if you have high speed Internet connection.

Press Next to proceed to the analysis page.

In order to start the search process press Start button.


Search process can take certain amount of time depending on the speed of the Internet

connection and the size of the documents you have chosen to process.

You can switch to the Search details tab to see the search process details. If you stop the process,

you will have to start from the beginning.

After the search process finishes you can make a report that shows similar matches report now

with the web sources.

Again you can click on a document to see the side-by-side view.


Internet Compilation Report

The Matches Report could possibly include many similar documents (for example, multiple

WikiPedia mirrors). To obtain more concise view of the sources used in a document, you can

create Internet Compilation Report. This report selects minimum subset of sources that cover the

document.

In order to build this type of report, first perform Web Search. Then choose a document, right

click on item and from the pop up menu choose Internet compilation report… The result you can

see in the following figure:


Date post:	25-Mar-2021
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