To achieve greater sustainability of the traffic system, the trend of traffic accidents in road traffic was analysed. Injuries from traffic accidents are among the leading factors in the suffering of people around the world. Injuries from road traffic accidents are predicted to be the third leading factor contributing to human deaths. Road traffic accidents have decreased in most countries during the last decade because of the Decade of Action for Road Safety 2011–2020. The main reasons behind the reduction of traffic accidents are improvements in the construction of vehicles and roads, the training and education of drivers, and advances in medical technology and medical care. The primary objective of this paper is to investigate the pattern in the time series of traffic accidents in the city of Belgrade. Time series have been analysed using exploratory data analysis to describe and understand the data, the method of regression and the Box–Jenkins seasonal autoregressive integrated moving average model (SARIMA). The study found that the time series has a pronounced seasonal character. The model presented in the paper has a mean absolute percentage error (MAPE) of 5.22% and can be seen as an indicator that the prognosis is acceptably accurate. The forecasting, in the context of number of a traffic accidents, may be a strategy to achieve different goals such as traffic safety campaigns, traffic safety strategies and action plans to achieve the objectives defined in traffic safety strategies.
In many countries, the demand for jobs in the conventional education system far exceeds the available job offers. Under the right circumstances, open and distance learning systems have proven that they can provide quality education and training to many people at lower unit costs than conventional education systems. In remote or sparsely populated areas, it is not economically feasible to provide the full range of educational opportunities and vocational training through the conventional institutions. Video conferencing as a method of distance education enables learning and training to be delivered in a more efficient and economical way. Due to the rapid development of technology, the idea that a student is trained as a young person for the same life-long job is becoming less viable. Most people are likely to change the profession for at least two or three times throughout their careers. This paper provides some technologies and standards used in video conferencing. In addition, it outlines some basic types of video conferencing and equipment requirements.
A chatbot is an algorithm, a programming script, designed to give users the ability to communicate and interact with it online in order to perform a specific task, without any human factor involvement. In the beginning, chatbots were exclusively programs with which it was possible to correspond by exchanging instant text messages. The main focus of the paper is on the presentation of usage of chatbot ADA (Academic Digital Assistant) based on artificial intelligence. ADA chatbot was developed to provide students with an enhanced study service and the necessary information during their studies. Statistical parameters of the use of chatbot ADA and the analysis of statistics of conversations by channels show growing trend in the use of chatbots in all three surveys of communication channels (Viber, FB Messenger and Website). The conclusions of the analysis of top 10 scenarios and number of conversations are shown that students' interests were in accordance with the school calendar and obligations.
Visoka škola strukovnih studija, Beograd U modernim društvima, saobraćajne nezgode u drumskom saobraćaju predstavljaju jedan od najčešćih uzroka smrti i povreda ljudi. Napredak u prikupljanju podataka o istraživanim pojavama je uveo promene u raznim poljima nauke i inženjerstva. Oblast saobraćajnog inženjerstva prati napredak i trendove u drugim oblastima. Jedan od glavnih zadataka projekata pametnih gradova je analiza velikih količina podataka, koji se prikupljaju od učesnika u drumskom saobraćaju. Ovi podaci se koriste za potrebe saobraćajnog planiranja, regulisanje saobraćaja i saobraćajnih zagušenja i za povećanje javne bezbednosti. Baze podataka o saobraćajnim nezgodama predstavljaju najvažniji izvor podataka za analizu i definisanje preventivnih akcija. Veliki broj podataka se prikuplјa o saobraćajnim nezgodama, ali su oni dostupni za analizu malom broju institucija i lјudi. Otvoreni podaci predstavlјaju novi koncept koji je počeo da se primenjuje u Republici Srbiji. U radu je prikazana delimična analiza otvorenih podataka za saobraćajne nezgode u gradu Beogradu za 2016. godinu.
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