Sequential Quasi-Monte Carlo

We derive and study SQMC (Sequential Quasi-Monte Carlo), a class of algorithms obtained by introducing QMC point sets in particle filtering. SQMC is related to, and may be seen as an extension of, the array-RQMC algorithm of L'Ecuyer et al. (2006). The complexity of SQMC is $O(N \log N)$, where $N$ is the number of simulations at each iteration, and its error rate is smaller than the Monte Carlo rate $O_P(N^{-1/2})$. The only requirement to implement SQMC is the ability to write the simulation of particle $x_t^n$ given $x_{t-1}^n$ as a deterministic function of $x_{t-1}^n$ and a fixed number of uniform variates. We show that SQMC is amenable to the same extensions as standard SMC, such as forward smoothing, backward smoothing, unbiased likelihood evaluation, and so on. In particular, SQMC may replace SMC within a PMCMC (particle Markov chain Monte Carlo) algorithm. We establish several convergence results. We provide numerical evidence that SQMC may significantly outperform SMC in practical scenarios.Comment: 55 pages, 10 figures (final version

Deceptive Advertising and Analysis of Its Effect on Consumers

This bachelor thesis deals with deceptive advertising and its effect on consumers. The first part of this thesis describes deceptive advertising as a part of unfair competition, definitions, psychology of advertising and means to influence consumer's decisions. In the practical part the specific cases of deception in advertising are identified, including their demonstrations on examples. The following chapters contain the evaluation of the survey to determine consumer awareness of deceptive advertising, consumer's manipulability and their attitudes towards advertising. The conclusion summarizes the objectives of this bachelor thesis, there are also suggested other possibilities of further investigation and it describes the contribution of this thesis

Marketing importance of body image for generation Y

This master thesis deals with the determination of meaning of body image for generation Y. Its goal is to identify the perception of body image by young generation and compare this perception with body image which is communicated via commercial messages focusing Czech generation Y. In the theoretical part of this thesis there is a description of the evolution of beauty ideal, the impact of media on the perception of elements of body image and theoretical conception the role of body image for market segmentation. The analytical part of this thesis deals with the evaluation of communication using content analysis of commercial messages and description of posture of generation Y to the elements related to body image and lifestyle of the target group. The posture of target group is described by analysis MML -- TGI data. Based on results of this thesis it is possible to assess the importance of meaning of individual components of body image for target group of young people and interpret described data for purposes of market segmentation and marketing communication

Exploatace Sokolovského pilíře : studie

Import 20/04/2006Prezenční výpůjčkaVysoká škola báňská. Fakulta hornicko-geologická. Katedra (519) lomového inženýrstv