S. No. | Name of Features extracted from sessions | Type of Features | Remarks |
1 | Total Hits | Numeric | Total number of HTTP requests sent by a user in a single session |
2 | % Image | Numeric | Percentage of Images files Requests (i.e. .jpg, .png, .tiff, .ico, .gif etc.) |
3 | % HTML | Numeric | Percentage of HTML files Requests (i.e. .html.php, .htm, .js, .cgi etc.) |
4 | % Binary doc | Numeric | Percentage of Binary Doc files Requests (i.e. .doc, .pdf, .ps, .xls, .ppt etc.) |
5 | % Binary Exe | Numeric | Percentage of Binary Exe files Requests (i.e. .cgi, .exe, .dll, .dat, .jar etc.) |
6 | % ASCII | Numeric | Percentage of Ascii files Requests (i.e. .txt, .cpp, .java, .xml, .c etc.) |
7 | % Zip | Numeric | Percentage of Compressed files Requests (i.e. .zip, .rar, .gzip, .tar, .gz etc.) |
8 | % Multimedia | Numeric | Percentage of Multimedia files Requests (i.e. .mp3, .mp4, .wmv, .avi, .mpg etc.) |
9 | % Other File | Numeric | Percentage of Other file format Requests (i.e. .swf, .com, .css etc.) |
10 | Bandwidth | Numeric | Number of bytes requested from server |
11 | Session Time | Numeric | Approximated total time of the session in seconds |
12 | avgHTML Req Time | Numeric | Average Time between two HTML requests |
13 | Total Night Time Req | Numeric | Total time for request made between 12 am and 7 am |
14 | total Reapeated Req | Numeric | Fraction of repeated requests |
15 | % Errors | Numeric | Percentage of Requests with status ≥ 400 |
16 | % GET | Numeric | Percentage of Requests made with GET method |
17 | % POST | Numeric | Percentage of Requests made with POST method |
18 | % Other Method | Numeric | Percentage of Requests made with Other methods |
19 | Depth Of Traversal | Numeric | Depth of traversal |
20 | Length Of Session | Numeric | Session length |
21 | Is Robotstxt Visited | Nominal | Indicates whether robots.txt file visited or not |
22 | % HEAD | Numeric | Percentage of Requests made with HEAD method |
23 | % Unassigned Referrer | Numeric | Percentage of Requests made with Unassigned Referrer (or Referrer = “−”) |