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ETFs: Analysis of Timing and Length of Investment
Polanka, Martin ; Čech, František (advisor) ; Švéda, Josef (referee)
This bachelor's thesis provides an analysis of the effect of timing and length of investment on return with the use of ETF data. The results show evidence that both variables are affecting returns. The author found a positive relationship between the length of an investment horizon and the probability of a positive return, as well as significant differences in return among different starts of investments. Further, the author describes ETF in the context of similar investment instruments such as other types of funds and exchange-traded products with their main benefits and drawbacks.
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Performance Testing for LTE Infrastructure
Polanka, Martin ; Tůma, Petr (advisor) ; Hnětynka, Petr (referee)
In the past few years, new standards of telecommunication networks brought new approaches to the internal architecture and introduced new components. One of them is the PCRF server component which manages an allocation of bandwidth for all user devices, therefore, it is a performance sen- sitive application. Yet there are no suitable smart traffic generators for such server and there is no comprehensive study of implementations. Based on the server provided by one of the major Czech telecommunication providers, the traffic generator for real scenarios and performance testing was designed and implemented. In addition, the statistics collection from the server was realized with the use of instrumentation. Both of these parts were put to- gether in the form of testing framework which was used for measurements of the designed test cases. The results from the measurement were evalu- ated and describe the behavior of the server in a real-life utilization and also under heavy load. Based on the evaluation, the provider can improve the server implementation and perform further analysis. The traffic generator can be extended to support more test cases and even reused by different telecommunication providers. 1
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Subtitles heuristics
Polanka, Martin ; Děcký, Martin (advisor) ; Peška, Ladislav (referee)
Original idea on this project comes from Khanova škola. This group of people is translating educational videos from Khan Academy and they would like to have an automatic tool, which will check their created subtitles. Character of this check relates with format of subtitles in general (time of beginning, ending, etc.) and also with Czech language and textual form of language. Within the scope of this thesis was developed software, which loads subtitles in SubRip format, on this loaded file analysis is executed and results are returned in XML or JSON format. Whole application is modular and has one main component (control program) and then several modules (plugins). These modules have one area of functioning, in which they execute analysis on subtitle objects. Plugins itself are realised by dynamic libraries, which are dynamicaly loaded on run-time. Thanks to that, application is simply extensible and new plugins can be added without necessity of re-compiling control program. Powered by TCPDF (www.tcpdf.org)
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