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Anomaly detection for streaming real-time data is very important; more significant is the performance of an algorithm in order to meet real-time requirements. Anomaly detection is very crucial in every sector because, by knowing what is going wrong with data/digital systems, we can make decisions to help in every sector. Dealing with real-time data requires speed; for this reason, the aim of this paper is to measure the performance of our proposed Holt-Winters genetic algorithm (HW-GA) as compared to other anomaly-detection algorithms with a large amount of data as well as to measure how other factors such as visualization and the performance of the testing environment affect the algorithm's performance. The experiments will be done in R with different data sets such as the as real Covid-19 and IoT sensor data that we collected from Smart Agriculture Libelium sensors and e-dnevnik 1 as well as three benchmarks from the Numenta data sets. The real data has no known anomalies, but the anomalies are known in the benchmark data; this was done in order to evaluate how the algorithm works in both situations. The novelty of this paper is that the performance will be tested on three different computers (in which one is a high-performance computer); also, a large amount of data will be used for our testing, as will how the visualization phase affects the algorithm's performance. [ABSTRACT FROM AUTHOR]

The article provides the results overview of a survey of the high school teachers opinions and experiences on the implementation of the E-register in school practice, the advantages and disadvantages of its use and the possibilities for further improvement. The survey involved 127 respondents - teachers of 9 high schools in the city of Zadar, who use E-register in their daily professional work. Research results show that the use of E-register has become a part of educational practices of our schools. Teachers mostly experience it positively, find it easy to use and useful for improvement the education system. Most of them attended training on the use of E-register, especially those organized in schools, and their quality is very positively evaluated. Teachers do not use all the potentials of the E-register, but its capabilities and options approach selectively using only part of its total potential. Teachers point out the greatest advantages and disadvantages of E-register and, accordingly, give suggestions for its further improvement, based on the experience of using E-register in school practice. Given the lack of similar research, the results of examining the opinions and experiences of high school teachers can be used as a sign for further updating and enhancement of the E-register application. [ABSTRACT FROM AUTHOR]