audio captcha seminar report documentation

Thanks & Regards.
Rajendar.B ....etc

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i want audio captcha existing solution assesment and implementation over voip telephony synopsis and seminar report ....etc

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apriori algorithm implementaion code weka related

import java.io.*;
import java.util.*;

/** The class encapsulates an implementation of the Apriori algorithm
* to compute frequent itemsets.
*
* Datasets contains integers (>=0) separated by spaces, one transaction by line, e.g.
* 1 2 3
* 0 9
* 1 9
*
* Usage with the command line :
* $ java mining.Apriori fileName support
* $ java mining.Apriori /tmp/data.dat 0.8
* $ java mining.Apriori /tmp/data.dat 0.8 > frequent-itemsets.txt
*
* Usage as library: see {@link ExampleOfClie ....etc

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Evaluating Existing Audio CAPTCHAs and an Interface Optimized for Non-Visual Use



INTRODUCTION AND MOTIVATION

The goal of a CAPTCHA1 is to di erentiate humans
from automated agents by requesting the solution to a
problem that is easy for humans but di cult for com-
puters. CAPTCHAs are used to guard access to web re-
sources and, therefore, prevent automated agents

Making CAPTCHAs Accessible

Audio CAPTCHAs were introduced soon after their vi-
sual alternatives , and have be ....etc

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Seminar Report on Audio CAPTCHA: Existing solutions assessment and It s Advancements
What are CAPTCHAs?
Completely Automated Public Test to Tell Computers and Humans Apart.
Web-based protection mechanisms
Only humans allowed to perform certain tasks
Opening E-mail accounts
Voting on-line, etc.
Prevent automated attacks by bots
To avoid eating up resources
To avoid biasing results, etc.
Most current systems - text-based.
Why there came a need for Captchas???
Preventing Comment Spam in Blogs.
Protect ....etc

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Abstract:

A digital audio broadcasting system that is capable of providing a large number of high quality stereophonic channels to mobile receivers in an environment with severe multipath delay and fading. Optimum combination of frequency and time diversity to guarantee robust performance in the mobile channel, with its multipath delay and frequency-selective fading effects. The system is based upon a dynamic single channel per carrier assignment of each stereo channel to many carriers. Inter symbol interference degradations caused by multipat ....etc

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CAPTCHA Security: A Low-Cost Attack on a Microsoft CAPTCHA
SEMINAR REPORT
Submitted by
NARAYANAN V
DEPARTMENT OF COMPUTER SCIENCE & ENGINEERING
COLLEGE OF ENGINEERING TRIVANDRUM
2010





ABSTRACT

CAPTCHA is now almost a standard security technology. The most widely used CAPTCHAs rely on the sophisticated distortion of text images rendering them unrecognizable to the state of the art of pattern recognition techniques, and these text-based schemes have found widespread applicati ....etc

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An Alternative To Captcha - Video Captcha
B.Tech Seminar report
by
Nawas Abdulla
Department of Computer Science And Engineering
Government Engineering College, Thrissur
December 2010

report:


Abstract
Video Captcha is a new technique for using content based video as a CAPTCHA
task. These CAPTCHAs are presently generated from YouTube videos, which con-
tains tags supplied by the person while uploading that video. These videos are graded
using the given video ....etc

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Hi,
I am Anusha Sekar. I am in my final year of Computer Science Engineering.
I want to know if you have ppt presentation fro the topic- 3D CAPTCHA: A Next Generation of the CAPTCHA. Could you help me out with the presentation? If you already have the presentation, please mail me at [email protected].

Thank You ....etc

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i want iee paper of audio captcha existing solutions assessment and a new implementation for voip telephony ....etc

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