As protection of web applications are getting more and more important every day, CAPTCHAs are facing booming attention both by users and designers. Nowadays, it is well accepted that using visual concepts enhance security and usability of CAPTCHAs. There exist few major different ideas for designing image CAPTCHAs. Some methods apply a set of modifications such as rotations to the original imag...

Code voting provides an appropriate technology to address the secure platform problem of remote Internet voting, but it is not particularly user-friendly. In this paper, we propose the use of CAPTCHAan acronym standing for Completely Automated Public Turing tests to tell Computers and Humans Apart to improve the user-friendliness of code voting, discuss the security of CAPTCHAbased code voting,...

WordNet is used extensively as a major lexical resource in information retrieval tasks. However, the qualities of existing Persian WordNets are far from perfect. They are either constructed manually which limits the coverage of Persian words, or automatically which results in unsatisfactory precision. This paper presents a fully-automated approach for constructing a Persian WordNet: A Bayesian ...

BACKGROUND To validate the Persian version of the simple shoulder test in patients with shoulder joint problems. METHODS Following Beaton`s guideline, translation and back translation was conducted. We reached to a consensus on the Persian version of SST. To test the face validity in a pilot study, the Persian SST was administered to 20 individuals with shoulder joint conditions. We enrolled ...

Efforts to defend against automated attacks on e-commerce services have led to a new security protocol known as a CAPTCHA, a challenge designed to exploit gaps in the perceptual abilities between humans and machines. In this paper, we propose a new paradigm for building CAPTCHA’s which offers simultaneous benefits to both online security and pattern recognition research. We illustrate our discu...

Development of robust spoken language technology ideally relies on the availability of large amounts of data preferably in the target domain and language. However, more often than not, speech developers need to cope with very little or no data, typically obtained from a different target domain. This paper focuses on developing techniques towards addressing this challenge. Specifically we consid...