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This chapter introduces a categorization of the main types of CAPTCHA. Then, each category of CAPTCHA is described and some examples are shown. The main advantages and problems related to the different categories of CAPTCHA are shortly discussed. This represents an introductive overview preceding the subsequent chapters where some types of CAPTCHA belonging to this categorization are described in more detail.

Types of CAPTCHA

Amelio A.
2020-01-01

Abstract

This chapter introduces a categorization of the main types of CAPTCHA. Then, each category of CAPTCHA is described and some examples are shown. The main advantages and problems related to the different categories of CAPTCHA are shortly discussed. This represents an introductive overview preceding the subsequent chapters where some types of CAPTCHA belonging to this categorization are described in more detail.
2020
Smart Innovation, Systems and Technologies
Inglese
29
32
4
978-3-030-29344-4
978-3-030-29345-1
Springer Science and Business Media Deutschland GmbH
GERMANIA
2-s2.0-85073147161
sì
2 Contributo in Volume::2.1 Contributo in volume (Capitolo o Saggio)
2
268
none
Brodic, D.; Amelio, A.
info:eu-repo/semantics/bookPart
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11564/770054
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