Acta Informatica Pragensia, 2018 (vol. 7), issue 2

A Users’ Awareness Study and Influence of Socio-Demography Perception of Anti-Phishing Security Tips

Abdul Orunsolu, Omorinola Afolabi, Simon Sodiya, Adio Akinwale

Acta Informatica Pragensia 2018, 7(2), 138-151 | DOI: 10.18267/j.aip.1195046  

Security tips are now used as a method of priming online users from falling prey for fraudulent scams. These security tips usually come as email, SMS or online posts where they can be easily accessed by the users. In this work, phishing attacks are simulated with varying cues that are available in such fraudulent email messages, SMS and web pages were used to investigate the effectiveness of the security tips used by Nigerian banks to prime their customers of online threats. A total of 427 respondents, purposively selected from three tertiary institutions in Ogun State, participated in the study. Each respondent was asked to identify five messages...

Review of Latent Dirichlet Allocation Methods Usable in Voice of Customer Analysis

Lucie Sperkova

Acta Informatica Pragensia 2018, 7(2), 152-165 | DOI: 10.18267/j.aip.1204442  

The aim of the article is to detect and review existing topic modelling methods of Latent Dirichlet Allocation and their modifications usable in Voice of Customer analysis. Voice of Customer is expressed mainly through textual comments which often focus on the evaluation of products or services the customer consumes. The most studied data source are customer reviews which contain next to the textual comments also ratings in form of scales. The aim of the topic models is to mine the topics and their aspects the customers are evaluating in their reviews and assign to them a particular sentiment or emotion. The author completed a systematic literature...

Kryptoměny

Cryptocurrency

Petr Tesař

Acta Informatica Pragensia 2018, 7(2), 166-167 | DOI: 10.18267/j.aip.1216485  

This article is review of Jan Lansky's book "Cryptocurrency", which was published in the Czech language by C. H. Beck in 2018.