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Expected value of information in stochastic programming
Čížková, Jitka ; Dupačová, Jitka (advisor) ; Lachout, Petr (referee)
Stochastic problems (both two-stage and multistage) can be formulated in several di erent ways which utilize to various extent available information on a future realization of incorporated random parameters. When comparing optimal objective function values resulting from di erent formulations of the given problem with the same available information, we obtain a value of using one of these formulations rather than the other one (e.g., VSS). Level of the available information can be changed by a partial or full relaxation of nonanticipativity constraints, which assure that a present decision is independent of future (unknown) realizations of random parameters. By comparing optimal objective function values gained when solving the given problem with distinct levels of available information we obtain (expected) value of partial or perfect information. In this work we present de nitions of various information value types and related values connected with the problem formulation and we derive their properties (nonnegativity, bounds). In the last part we introduce their summary classi cation.
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Expected value of information in stochastic programming
Čížková, Jitka
Stochastic problems (both two-stage and multistage) can be formulated in several di erent ways which utilize to various extent available information on a future realization of incorporated random parameters. When comparing optimal objective function values resulting from di erent formulations of the given problem with the same available information, we obtain a value of using one of these formulations rather than the other one (e.g., VSS). Level of the available information can be changed by a partial or full relaxation of nonanticipativity constraints, which assure that a present decision is independent of future (unknown) realizations of random parameters. By comparing optimal objective function values gained when solving the given problem with distinct levels of available information we obtain (expected) value of partial or perfect information. In this work we present de nitions of various information value types and related values connected with the problem formulation and we derive their properties (nonnegativity, bounds). In the last part we introduce their summary classi cation.
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Kvalita teplomilného ovoce v průběhu skladování
Čížková, Jitka
The theoretical part of the thesis: Quality of thermophilic fruit during storage, includes description of thermophilic species and storage conditions, also includes a chapter on diseases and pests of the species, their composition and new trends in storage: Xtend packaging material. In the practical part of the thesis, apricots (variety Betinka and Moi Chua Sin) were stored in three variants: free storage fruits, storage in a polyethylene package and Xtend at a temperature of approximately 1°C and humidity around 80 %. Under these conditions, was monitored health status, weight loss, the weight of the fetus and the pips, the dimensions of the fruits and the index of the shape, soluble solids, titration acids and the firmness of the fruits. The results were evaluated statistically in tables and graphs. As the most suitable option for storage was evaluated for storage in Xtend.
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Expected value of information in stochastic programming
Čížková, Jitka
Stochastic problems (both two-stage and multistage) can be formulated in several di erent ways which utilize to various extent available information on a future realization of incorporated random parameters. When comparing optimal objective function values resulting from di erent formulations of the given problem with the same available information, we obtain a value of using one of these formulations rather than the other one (e.g., VSS). Level of the available information can be changed by a partial or full relaxation of nonanticipativity constraints, which assure that a present decision is independent of future (unknown) realizations of random parameters. By comparing optimal objective function values gained when solving the given problem with distinct levels of available information we obtain (expected) value of partial or perfect information. In this work we present de nitions of various information value types and related values connected with the problem formulation and we derive their properties (nonnegativity, bounds). In the last part we introduce their summary classi cation.
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Expected value of information in stochastic programming
Čížková, Jitka ; Lachout, Petr (referee) ; Dupačová, Jitka (advisor)
Stochastic problems (both two-stage and multistage) can be formulated in several di erent ways which utilize to various extent available information on a future realization of incorporated random parameters. When comparing optimal objective function values resulting from di erent formulations of the given problem with the same available information, we obtain a value of using one of these formulations rather than the other one (e.g., VSS). Level of the available information can be changed by a partial or full relaxation of nonanticipativity constraints, which assure that a present decision is independent of future (unknown) realizations of random parameters. By comparing optimal objective function values gained when solving the given problem with distinct levels of available information we obtain (expected) value of partial or perfect information. In this work we present de nitions of various information value types and related values connected with the problem formulation and we derive their properties (nonnegativity, bounds). In the last part we introduce their summary classi cation.
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Skladování peckového ovoce
Čížková, Jitka
Bachelor thesis on the theme storage of fruits contains theoretical and practical part deals with with the cultivation/grow (dala bych ale spíš cultivation), harvesting and processes which take place during storage of stone fruit. The practical part is focused on the storage of stone fruit, apricot specifically at two different temperatures of 5 ° C and 18 ° C. For the experiment were selected varieties Betinka and Bergeron, was observed weight loss, health condition, and weight of the fruit and ston and the proportion of the fruit, the fruit size, shape index, fruit fitness fruit solids and titration acid. The results were summarized in tables and graphs.
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The influence of the historical Concept of František Palacký in the contemporary novelistic
ČÍŽKOVÁ, Jitka
Diplomová práce přináší příspěvek k problematice inspirace historické prózy devatenáctého století odbornou dějepisnou literaturou. Jejím úkolem je zhodnocení provázanosti Palackého husitské koncepce s vybranými dvěma povídkami Josefa Kajetána Tyla, jejichž děj je situován do první poloviny patnáctého století v Čechách. První část diplomové práce uvádí stručnou charakteristiku obou autorů a jejich tvorby s historickou tematikou. Následující teoretická kapitola je věnována pohledu na husitství v devatenáctém století. Druhá část práce je zaměřena prakticky, neboť vedle srovnání výkladu dějin oběma autory také obsahuje subjektivní interpretaci literárních kvalit postav a okolností, jež si Tyl domýšlí.
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