Abstract Assessment, diagnosis, and cognitive stimulation of patients with different stages of cognitive impairment, including mild cognitive impairment (MCI) and Alzheimer's disease, has become a growing area of research. Recently, there has been an increase in interest in applying serious games for older people with neurodegenerative diseases. The present systematic review aims to investigate and classify serious games for detecting cognitive... Assessment, diagnosis, and cognitive stimulation of patients with different stages of cognitive impairment, including mild cognitive impairment (MCI) and Alzheimer's disease, has become a growing area of research. Recently, there has been an increase in interest in applying serious games for older people with neurodegenerative diseases. The present systematic review aims to investigate and classify serious games for detecting cognitive impairment in the elderly. In this review, searches focused on studies conducted between 2014 and 2021, of which twenty-four studies met the inclusion criteria. In this regard, we identified a few categories for the collective classification of serious games. We chose taxonomy of five classes to classify serious games dedicated to cognitive training and diagnosis among seniors: cognitive skills, objectives, game elements, motivation, and validation. We conclude that gamified techniques prove to be a valuable complement to traditional treatments because of the increased patient engagement. Read More Read Less

Abstract "What the others think?" is an essential question for individuals, companies, and governments. All need to know the public opinions to make their decisions wisely. In the last decade, sentiment analysis and opinion mining have become one of the growing research areas. This paper presents the current state of sentiment analysis and opinion mining research. In particular, researches those deals... "What the others think?" is an essential question for individuals, companies, and governments. All need to know the public opinions to make their decisions wisely. In the last decade, sentiment analysis and opinion mining have become one of the growing research areas. This paper presents the current state of sentiment analysis and opinion mining research. In particular, researches those deals with the Arabic language. We tried to cover the techniques and methods in sentiment analysis and the challenges in the field. We described the leading methods and approaches that have been introduced in the literature for Arabic Sentiment analysis and opinion mining. The main contributions of this paper include the sophisticated categorizations of a large number of recent articles about Arabic Sentiment analysis. These articles are categorized according to their contributions in the various sentiment analysis techniques. Read More Read Less

Abstract Let be a finite ring of characteristic 2, where e2 = e and n is a positive integer. Let (a, d) 2 ( )2, such that a and d + a2 + a are invertible in , we study the binary Edwards curve over this ring, denoted by and we give a bijection between this curve and produces two binary... Let be a finite ring of characteristic 2, where e2 = e and n is a positive integer. Let (a, d) 2 ( )2, such that a and d + a2 + a are invertible in , we study the binary Edwards curve over this ring, denoted by and we give a bijection between this curve and produces two binary Edwards curves defined on the finite field . Afterthat we study the addition law of binary Edwards curves over the ring . We end this work with cryptography applications, ElGamal twisted Edwards curve cryptosystem and Cramer-Shoup twisted Edwards curve cryptosystem. Read More Read Less