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Dissertations / Theses on the topic 'Optimistic and pessimistic problems'

Author: Grafiati

Published: 5 June 2025

Last updated: 15 July 2025

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1

Kholondyrev, Yury. "Optimistic and pessimistic shortest paths on uncertain terrains." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/32577.

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In the Uncertain Terrain Shortest Path problem we consider a triangulated terrain with vertices having uncertain Z-coordinates: each vertex is denned as a (x,y,z―,z+) tuple, where the z coordinate of a vertex is uncertain and can be anywhere in the range from z― to z+. We are looking for a path (defined by its projection to the XY- plane) such that, over all possible terrains, the path is as short as possible. We look at both pessimistic (terrain arranges itself to maximize the length of the path that we choose) and optimistic (terrain takes the state that minimizes the length of our path) sce

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2

Roitch, Vladimir. "Optimistic and pessimistic ambiguous chance constraints with applications." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/55238.

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In this thesis, we consider optimisation problems which involve ambiguous chance constraints, i.e., probabilistic constraints where the probability distribution of the primitive uncertainties is at least partly unknown. In this case, we can define an ambiguity set that contains all distributions consistent with our prior knowledge of the uncertainty and take either a pessimistic (worst-case) or optimistic (best-case) view of the world. The former view can be used to actively optimise a system whilst guaranteeing some predefined level of safety; being robust even if the worst-case scenario mate

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Hawkins, Mary T., and mikewood@deakin edu au. "Exploring optimistic and pessimistic attributions in depression-specific mood." Deakin University. School of Psychology, 2004. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20050815.093235.

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Cognitive theories of depression include maladaptive thinking styles as depressive vulnerabilities. The hopelessness theory of depression (Abramson, Metalsky, & Alloy, 1989) particularly implicates stable and global attributions for negative events as influences upon depression. Positive event attributions are considered less influential, yet they have shown equal predictiveness to negative event attributions for depression-specific mood. Previous research has provided equivocal results largely because of cross-sectional design and modest psychometric properties of the measures. The present re

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Mostoufi, Sheeva. "Is pessimism adaptive? Moderators of the relationship between optimistic / pessimistic bias and depressive symptoms /." Connect to resource, 2007. http://hdl.handle.net/1811/28371.

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Thesis (Honors)--Ohio State University, 2007.<br>Title from first page of PDF file. Document formatted into pages: contains 49 p.; also includes graphics. Includes bibliographical references (p. 40-43). Available online via Ohio State University's Knowledge Bank.

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5

McGregor, Leanne. "Expecting to Be Rejected or Accepted: Children’s Optimistic and Pessimistic Relationship Expectations, Divorce, Interparental Conflict and Parenting." Thesis, Griffith University, 2010. http://hdl.handle.net/10072/365308.

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Based on recent estimates within Australia, approximately 32% of marriages end in divorce, and almost 50% of these families include children. Divorce can be distressing for children, as revealed by investigations comparing children from intact and divorced families on conduct, psychological adjustment, self-concept, and social adjustment (Amato, 2000). These early comparisons, however, were usually accomplished without consideration of other aspects of the family system (i.e., family processes). More recently, researchers have investigated family structure and family processes as correlates of

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6

Le, Roux Anli. "Screening African Conflicts : the different faces of Africa's child soldiers - Afro-pessimistic / Afro-optimistic portrayals on screen." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/11715.

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Includes abstract.<br>Includes bibliographical references.<br>When discussing and addressing child soldiering in Africa, both in print or in film, there are a number of key factors that need to be considered. For example, taking into account the root causes for both recruitment and voluntary enlistment - which include the changed nature of weapons and warfare, the breakdown of law and order, and intolerable levels of poverty, unemployment and also the social pressures on children to engage in armed conflicts. By bearing these factors in mind when delving into this complex subject matter, helpe

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7

Silent, Night Dr D. Jim Reeves [Verfasser], and C. [Verfasser] Esakkiappan. "Optimistic and Pessimistic Adolescence : A comparison of Physical Fitness and Physiological variables / Dr. D. Jim Reeves Silent Night, C. Esakkiappan." Hamburg : Anchor Academic Publishing, 2015. http://d-nb.info/1110039387/34.

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8

Arunachalam, Aravinthan. "Essays on the Impact of Stakeholders' Sentiment on the Financial Decision Making Process." FIU Digital Commons, 2008. http://digitalcommons.fiu.edu/etd/59.

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The most important factor that affects the decision making process in finance is the risk which is usually measured by variance (total risk) or systematic risk (beta). Since investors' sentiment (whether she is an optimist or pessimist) plays a very important role in the choice of beta measure, any decision made for the same asset within the same time horizon will be different for different individuals. In other words, there will neither be homogeneity of beliefs nor the rational expectation prevalent in the market due to behavioral traits. This dissertation consists of three essays. In the fi

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9

Švolba, Martin. "Finanční projekt převzatého podniku." Master's thesis, Vysoká škola ekonomická v Praze, 2011. http://www.nusl.cz/ntk/nusl-85297.

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The goal of this thesis is to create a financial project of Take-over Company and specify the steps that lead to its profitability. The thesis is divided into two parts. The first, theoretical section describes the calculations used, marketing plan and market analysis. The second part is practical and there is specifically described a plan how to deal with building a restaurant with bowling and beach sports pitch in the town Rakovník and what is the expected development during the first five years. Key to the success of company is the marketing plan and the use of employee benefits in the coop

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10

Palazon, Tiphaine. "Cognitive bias and welfare of egg-laying chicks: Impacts of commercial hatchery procedures on cognition." Thesis, Linköpings universitet, Biologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-170777.

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Egg-laying hens coming from commercial hatchery go through hatchery procedures considered as stressful and engaging prolonged stress response in adult chickens. The aim of our study was to evaluate the impact of commercial hatching procedure on the affective state of chicks, on their short- and long-term memory and on their need for social reinstatement. To assess the affective state of the chicks we used a cognitive bias protocol integrating the ecological response of a chick to the picture of another chick, to an owl and to an ambiguous cue mixing features of both the chickand the owl pictur

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11

Hajdová, Veronika. "Návrh podnikového finančního plánu." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2019. http://www.nusl.cz/ntk/nusl-402149.

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The diploma thesis is focused on the issues of financial planning. In the introductory chapter the basic theoretical terms, which are important to understanding the issue, are explained. The aim of this thesis is to create a financial plan for selected company for the next 3 years, which is also the subject of the main part of this diploma thesis. The financial plan is compiled in two variants: optimistic and pessimistic. In both options of the financial plan the consequences of the company's planned investment will incorporate. At the end of the thesis, the evaluation and control of the resul

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Beránková, Michaela. "Návrh podnikového finančního plánu." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2018. http://www.nusl.cz/ntk/nusl-377984.

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The aim of this diploma thesis is to prepare the financial plan of the selected company for the planned period 2018 – 2020. The financial plan is based on analysis of company´s data of past periods for the 5 periods in retrospect. The preparation of the financial plan is preceded not only by the financial analysis of past years' data and the strategic analysis of the environment but also by the determination of the company's strategies and objectives. The financial plan for the period 2018 - 2020 will be completed in two variants. In the last part an assessment of the financial plan variant wi

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13

Bernat, Roman. "Návrh podnikového finančního plánu." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2017. http://www.nusl.cz/ntk/nusl-317103.

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Diploma thesis is based on finding out main financial planning issues. The first part of thesis is dealing with theoretical aspects, which are necessary to know for setting up a financial plan. After this part is the practical part, which includes detailed procedure for setting up a financial plan for company H.A.Kovochem. Financial plan is created in an optimistic and pessimistic alternative. The final part of the thesis is evaluation and control of these two alternatives of plans

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14

Araya-López, Mauricio. "Des algorithmes presque optimaux pour les problèmes de décision séquentielle à des fins de collecte d'information." Phd thesis, Université de Lorraine, 2013. http://tel.archives-ouvertes.fr/tel-00943513.

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Le formalisme des MDP, comme ses variantes, sert typiquement à contrôler l'état d'un système par l'intermédiaire d'un agent et de sa politique. Lorsque l'agent fait face à des informations incomplètes, sa politique peut eff ectuer des actions pour acquérir de l'information typiquement (1) dans le cas d'une observabilité partielle, ou (2) dans le cas de l'apprentissage par renforcement. Toutefois cette information ne constitue qu'un moyen pour contrôler au mieux l'état du système, de sorte que la collecte d'informations n'est qu'une conséquence de la maximisation de la performance escomptée. Ce

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Araya-López, Mauricio. "Des algorithmes presque optimaux pour les problèmes de décision séquentielle à des fins de collecte d'information." Electronic Thesis or Diss., Université de Lorraine, 2013. http://www.theses.fr/2013LORR0002.

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Cette thèse s'intéresse à des problèmes de prise de décision séquentielle dans lesquels l'acquisition d'information est une fin en soi. Plus précisément, elle cherche d'abord à savoir comment modifier le formalisme des POMDP pour exprimer des problèmes de collecte d'information et à proposer des algorithmes pour résoudre ces problèmes. Cette approche est alors étendue à des tâches d'apprentissage par renforcement consistant à apprendre activement le modèle d'un système. De plus, cette thèse propose un nouvel algorithme d'apprentissage par renforcement bayésien, lequel utilise des transitions l

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16

Lin, Chu Shao, and 朱紹菱. "Developing Intuitionistic Fuzzy Multi-Criteria Decision-Making Methods based on Optimistic and Pessimistic Traits." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/55785028212942400192.

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碩士<br>長庚大學<br>工商管理學系<br>98<br>External environment is full of uncertainty and information asymmetry, the individual's subjective awareness will affect their decision-making process. Many studies focus on optimism and pessimism among the personality traits included and the results are the findings with sufficient influence. In the past only a single criterion for the type of problem, and then gradually evolved into more complex and closer to the real world of multi-criteria decision problem. Therefore, in fuzzy environment, this was widely used on many areas. In this study proposed based on Ata

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17

Chiang, Chi-Yi, and 江靜儀. "The Chinese optimistic and Pessimistic Traits: The Development and Validation of a News Scale." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/13079160825580476531.

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碩士<br>中原大學<br>心理學研究所<br>100<br>This study aims to follow indigenous studies way. By this way, the researcher could explain the conceptions of Chinese’s optimism and pessimism, and editing “The Indigenous optimism and pessimism scale.” The researcher bases on this research target to divide three stages of research. They are the empirical study of using qualitative and quantify methods. That purpose is to know the content of Chinese’s optimism and pessimism, and complied by “The Chinese Optimism and Pessimism Traits Scale.” In study 1, the researcher uses the ways of “meaning analysis of words a

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18

Qualls, Kandi. "Pessimistic and optimistic personality traits among Tennessee adult tobacco smokers and nonsmokers in selected worksites." 2006. http://etd.utk.edu/2006/QuallsKandi.pdf.

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19

Chen, Mei-Ching, and 陳玫菁. "Effects of decreasing pessimism/ increasing optimism teaching program on Pessimistic/ Optimistic Beliefs、Depresstion and Anxiety of Fifth Grade Students." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/65967636883454822539.

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碩士<br>國立臺灣師範大學<br>教育心理與輔導學系碩士在職專班<br>96<br>The purposes of this study were to design a decreasing pessimism teaching program comparing to an increasing optimism teaching program for 5th grade students and to investigate its effects on students’ pessimistic/optimistic beliefs depression and anxiety. There were totally 86 students from an elementary school in Taipei participating in this study, 59 of which were assigned to the experimental group and 27 of which to the control group. Students in the experimental group went through the 640-min. teaching program for 8 weeks, 80 min. per week, while

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20

Li, Yun-Gang, and 李運鋼. "Design of an Emotion Model Based on Hidden Markov Model with Optimistic and Pessimistic Personalities for Emotional Speech Interaction." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/28701455345723597173.

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碩士<br>國立臺灣大學<br>電機工程學研究所<br>99<br>Artificial emotion model is considered as a key factor to achieve a more effective and believable human-robot interaction. As the speech communication plays an essential part of our daily life, the utilization of the emotional speech is expected to make human-robot communication smooth. Thus, it is promising to design a robot which has perception of emotion in speech, and responses corresponding to internal emotion similar to human. Since the individual emotion exists as a part of an emotion network and they have certain probability to interact with other emot

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21

Lin, Teng-Sung, and 林登松. "The Effects of the Injured Judo Athletes’ Pessimistic/ Optimistic Tendency and Degree of Injury on Mood Responses and Coping Behaviors." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/79453050015482596230.

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碩士<br>國立體育學院<br>體育研究所<br>91<br>ABSTRACT The purposes of this study were:1.to explore the effects of the injured judo athletes’ pessimistic/optimistic tendency and degree of injury on mood responses; and 2.to explore the effects of the injured judo athletes’ pessimistic/optimistic tendency and degree of injury on coping behaviors. There were 202 collegiate injured judo athletes (including: 108 on-site and 94 post-injury athletes) used as the participants. Among them, there were 189 males and 13 females with average ages of 24.6 ± 5.85.All the participants were administered Life Orientation In

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22

Tsai, Cheng-Lun, and 蔡政倫. "A Study of the ROE on Mutual Fund investment Horizon – The Analysis of the Optimistic Case and the Pessimistic Case." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/82694172718561021772.

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碩士<br>義守大學<br>資訊管理學系碩士班<br>97<br>Regardless of stock or funds investment in the financial market , investors all most concerned about the ROI. Many financial managers in the newspapers or magazines recommended that investors should invest fund/mutual fund by periodical transfer to share the cost risk, make long-term savings, and accumulate assets. This study adopted periodical transfer to discuss effects of investment period on ROI, the most optimistic (maximum net value per month), the most pessimistic (minimum net value per month) and the Domestic bank funds charge way (8/18/28). This resear

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23

Wen, Wen-Shun, and 温文順. "Do Latent Optimistic or Pessimistic Sentiments within Media Reports of Earnings Announcements and Operation Information Contain Information Content about Financial Stocks?" Thesis, 2010. http://ndltd.ncl.edu.tw/handle/12659923932638267848.

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碩士<br>銘傳大學<br>財務金融學系碩士在職專班<br>98<br>The present study extended the research designs of Vega (2006) and Demers and Vega (2008) to analyze sentiments present within media reported earnings announcements and operation information, and whether correlations existed between the cumulative abnormal returns before and after earnings announcements. The application value of public information and latent media sentiments were further elucidated. The present study firstly investigated how public information prior to announcement day influenced post-announcement drift. The research by Vega (2006) on public

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HSU, CHIA –. HUNG, and 徐嘉宏. "The Relationship among Optimistic and Pessimistic Tendency with Life Adjustment for the Military School Students: An Example of Chung. Cheng Armed Forces Preparatory School." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/jwg8bq.

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碩士<br>國立高雄大學<br>運動健康與休閒學系碩士班<br>102<br>ABSTRACT The study is aimed to investigate the military school students about optimism, pessimism, life stress , coping strategies and life adjustment between the relevant relationship. The primary purpose of : (1).To investigate the optimistic, pessimistic, life stress, coping strategies and life adjustment between the relevant circumstance.(2).To explore the optimistic and pessimistic predictions to adapt to the life condition.(3).To explore the pressures of life to adapt to the life prediction circumstances. (4).To explore coping strategies to adapt to

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