PRTK - Markov Chara...
 
Notifications
Clear all

PRTK - Markov Characters

3 Posts
3 Users
0 Reactions
716 Views
(@digitalagent)
Active Member
Joined: 12 years ago
Posts: 15
Topic starter  

Hey guys, this is my first post on this website.

Right now I am running PRTK in order to recover a password to a word document. I'm looking over the process, can someone explain to me what a Markov character is? I can't find it anywhere. Thank you in advance.


   
Quote
(@bithead)
Noble Member
Joined: 20 years ago
Posts: 1206
 

A little bit of light reading

Hidden Markov models for character recognition
"A hierarchical system for character recognition with hidden Markov model knowledge sources which solve both the context sensitivity problem and the character instantiation problem is presented. The system achieves 97-99% accuracy using a two-level architecture and has been implemented using a systolic array, thus permitting real-time (1 ms per character) multifont and multisize printed character recognition as well as handwriting recognition."

Markov algorithm

A Discriminative Semi-Markov Model for Robust Scene Text Recognition

Learning Hidden Markov Model Structure for Information Extraction


   
ReplyQuote
jhup
 jhup
(@jhup)
Noble Member
Joined: 16 years ago
Posts: 1442
 

Basically it is a rule based methodology to guess the passwords.

Very simplistic example would be a "l33t" speak translator that takes it beyond just character substitution, and uses word, concept and even multilingual substitution.


   
ReplyQuote
Share: