Plagiarism Detection Tool using Citation Analysis

I have been doing a project for Compilers lab with my friend Sundar. It involves developing a plagiarism detection tool using citation analysis. Sounds fancy huh? I don’t mean to brag about it, but this is ‘one of a kind’ project. We are still in the beta stages. Looking forward to complete it asap. Meanwhile, this post will be my activity log of the project.

Official GitHub Page

CSS3 Animated Landing page

First of all, I designed a splash page using CSS3 for my project. Actually, the original design was by CoDrops. I just made a few tweaks. *Yeah, I can hear you. It’s a free design, so that doesn’t make me a plagiarist!* 😉

Here is a screenshot:

Algorithm:

Normalized Compression Distance [NCD]

function ncd_new($sx, $sy, $prec=0, $MAXLEN=9000)
{
/* NCD with gzip artifact correctoin and percentual return.
   sx,sy = strings to compare.
   Use $prec=-1 for result range [0-1], $pres=0 for percentual,
   For NCD definition see http://arxiv.org/abs/0809.2553 */
 $x = $min = strlen(gzcompress($sx));
 $y = $max = strlen(gzcompress($sy));
 $xy= strlen(gzcompress($sx.$sy));
 $a = $sx;
 if ($x>$y) {
//swap min/max
 $min = $y;
 $max = $x;
 $a = $sy;
 }
//NCD definition.
 $res = ($xy-$min)/$max;

//Little strings:
 if ($MAXLEN<0 || $xy<$MAXLEN) {
 $aa= strlen(gzcompress($a.$a));
 $ref = ($aa-$min)/$min;
 $res = $res - $ref; //correction
 }
 return ($prec<0)? $res: 100*round($res,2+$prec);
}

Screenshots:

CSS3 Animated Landing Page