Thesis (Ph. D.)--University of Texas at Austin, 2006. / Vita. Includes bibliographical references.

The diploma thesis focuses on information systems analysis and assessment of a chosen company. After results evaluation based on this analysis, a proposal will be made on how to convert the former information system into a new one. This proposal will be described from an economic point of view at the end of the thesis as well.

Trouble reporting is a substantial component in any technical product's maintenance workflow. In this project, we investigated a set of methods for streamlining this workflow, using both software solutions and machine learning. The aim was to find a way of grouping trouble reports for easier analysis and other potential usecases down the line. This project was conducted in the context of telecom infrastructure. Unstructured data that is produced both by humans and machines was transformed into embeddings representations, usingmultiple Bert based language models, of which one was domain specialised. The embeddings were clustered using multiple clustering techniques, and finally labeled using machine learning. Furthermore, we compared the use of our Bert models, with the use of the classical TF-IDF representation, with the aim of creating a baseline for the performance of these models . Trials showed that the best way of representing the trouble report depended on its content. TF-IDF had benefits when the keywords were few, exclusive to the group and carried a lot of relevance. However, when the keywords had many synonyms or were counter-productive to look at, the language model showed better results. The sentence model S-Bert was almost always superior to the other Bert-based language models, even the domain specialised one.

В магистерской диссертации рассматриваются актуальные тенденции развития дистрибуции авиабилетов на российском рынке. Студент уделяет внимание современным GDS, а также проводит сравнительный анализ онлайн-инструментов продаж авиабилетов. В работе также отражена и текущая ситуация на рынке гражданской авиации страны. / The master's thesis discusses the current development trend of the distribution of airline tickets at the Russian market. The student pays attention to modern GDS, as well as a comparative analysis of online ticket sales tools. The paper also reflects the current situation at the market of civil aviation in Russia.

In the field of technology, every day new inventions are introduced in the society for promotion human beings life. By virtue of which all the citizens of society are facilitated according to their needs of life style. Most of the people from developed countries are benefited in all ways of life due to their nonstop efforts and struggle in the field of technology. However some are completely denied due to lack of awareness and lacking of technical education in the subject field. The handicapped people are not very well explored in each part of world, especially third world countries by the researchers. So we can claim it, for their weaknesses and so called interest to understand more about the handicapped people worldwide. To understanding about such people will provide us with opportunities to excel in the subfield. There is a big gap between the handicapped and society which causes to cut them off from society. This gap needs to be filled in, while carrying out researches in the desired fields. Our research area is related to ticket reservation machine for the visually impaired people, to make the process easy for them to buy ticket at their own from the ticketing machine. After studying different articles on the subject, it is proved that many inventions have already been done by researchers and others are in progress for helping out the handicapped people. We have presented screen prototypes of the interface of the ticketing machine for the visually impaired people. We collected many hardware devices as one kit which can be use in the machine for the visually impaired users. It will enhance their power of visual sense to perform tasks at their own. There are some principles to follow in building up any system for visually impaired or blind people. If followed these principles in true sense it will facilitate to make new interface designs for interaction with visually impaired or blind users in friendly way. In this way we can overcome the shortcomings between normal and visually impaired people, which will be a great achievement to serve the deprived people.

Trabajo del curso Estadística Aplicada II, ciclo 2019-1, desarrollado por los estudiantes de cuarto ciclo de los Programas Académicos de Ingeniería Industrial e Ingeniería de Gestión Empresarial. Universidad Peruana de Ciencias Aplicadas (UPC) / El objetivo principal del presente trabajo de investigación es analizar e identificar los principales factores que influyen en el tiempo de espera de un cliente al realizar la compra de un ticket y de qué manera el tiempo de espera afecta la percepción del consumidor respecto al servicio otorgado por parte del personal de la empresa Cineplanet en las sucursales de San Miguel y San Borja durante los días 26 y 27 de Abril del 2019. Este es un estudio transversal, no experimental bajo un enfoque cuantitativo sobre el tiempo que un consumidor se demora en la fila de espera hasta adquirir un ticket de cine y la satisfacción del consumidor sobre ese tiempo de demora. Para eso, se seleccionó una muestra de 112 personas para la sucursal de San Borja y 155 personas para la sucursal de San Miguel en base a los censos hechos por del Instituto Nacional de Estadística e Informática (INEI). Usando como instrumentos las hojas de registro para anotar el tiempo de demora de un cliente, cronómetros para medir los tiempos y encuestas con escala de Likert y método de SERVQUAL para conocer la satisfacción de los clientes respecto al servicio brindado. Los resultados evidenciaron que los principales factores que afectan el tiempo de espera son los turnos de atención, canales de pago y las sucursales. Asimismo, se verificó que tiempo de espera influye en el nivel de satisfacción del cliente, ya que los resultados obtenidos en los diferentes factores mencionados anteriormente varían según el puntaje brindado por los clientes en las encuestas.

Ever since the deregulation of the airline industry in 1978, fierce competition has made every airline try and gain a competitive edge in the market. In order to accomplish this, airlines are turning to advanced optimization techniques such as revenue management. Revenue management is a way for airlines to maximize capacity and profitability by managing supply and demand through price management. Over the last few years research in the field of revenue management has steadily progressed from seat inventory control techniques such as single leg seat inventory and network inventory control to ticket pricing techniques. Ticket pricing techniques involve setting ticket prices according to the time remaining to depart and inventory level conditions at that point in time. These models can be solved either by dynamic or mathematical programming. However, these models in addition to having increased complexity are based on several assumptions which may not be valid in real life situations thereby limiting there applicability. In this research, we have developed computer simulation models using Arena software as a tool to solve airline revenue management problems. Different models based on factors such as customer behavior, which would involve the probability of a customer accepting a ticket and relevant pricing methods such as seats remaining and time remaining have been developed with the objective of reaching an optimal revenue management policy. Initially, the strategies have been developed and tested for a single flight leg for different types of destinations such as tourist, business and mixed tourist and business. It was found that models where pricing was based on seats remaining generated the most revenue for the tourist destinations, time remaining for the business destinations and pricing based on time and seats remaining for the mixed type. Two different strategies, one where the ticket price for the indirect (stop-over) flight increases as more seats for direct flight are sold and the second where the ticket price for the indirect flight decreases have been developed for a network of three cities with direct and stop-over flights. It was found that the first strategy works well for the business destination. There was no significant difference between the two strategies for the other two destinations. Also, the model was run where a set percentage of seats on the direct flight are sold prior to the opening of indirect flight bookings (blocking). It was found that blocking of seats did not increase the total revenue generated.

The dissertation consists of a Piano Concerto, written for first performance in Fall 2008 by Blair McMillen, piano, and the Raleigh Civic Symphony conducted by Randolph Foy. The three movement work is scored for piccolo, 2 flutes (1 doubling piccolo), 2 oboes, English horn, 2 clarinets in B-flat, bass clarinet in B-flat, 2 bassoons, 4 horns in F, 3 trumpets in C, 2 tenor trombones, bass trombone, tuba, timpani, 3 percussionists, strings, and piano solo. The work is approximately twenty minutes in duration. The first movement, "Fantod," employs a neo-Romantic idiom, featuring the soloist as both aggressive virtuoso and as a subtle residual resonance which emerges from the orchestral texture. The second movement, "Lament," serves as a simple, pensive, and sorrowful aftermath to the frenzied first movement. In the third movement, "Rondoburlesque," the mood of the work becomes considerably more lighthearted, and moments of the first two movements are caricatured. The Concerto's harmonic and melodic organization derives from a set theoretical design. The first movement uses the harmonic minor scale and its inversion, the second movement uses the melodic minor scale, and the last movement uses the natural minor scale (the major scale). Important and unique subsets of these scales are used to provide both contrast and interrelatedness between movements. In particular, the main melodic theme of the first movement returns at the end of the last movement. / Dissertation

It¡¦s recently with increasing frequency of ¡§divided government¡¨ caused by ¡§split-ticket voting¡¨, the straight- and split-ticket voting acts of electors are set great stores by the studies of voting attitude. The major and councilor elections in the end of 2002 was just right the model of straight- and split-ticket voting study that elector could vote major and councilor, which are with or without the same party. Both the aggregate- and individual-level data were analyzed in this study. The aggregate data announced by Central Election Commission was assay by King EI model to evaluate the ratio of the four voting categories. The individual-level data made after elections was based on the ¡§2002 Taiwan¡¦s Election and Democratization Study¡¨ (TEDS 2002), which was by visiting electors, and the Survey Center of National Sun Yat-sen University (NSYU), which was by phone call. The survey data of Kaohsiung elections was analyzed to find the main factors that influence the straight- and split-ticket voting, and this may help to find the true manner of voting behavior. Based on the unusually political environment, this study defined the particular ¡§general sense¡¨ straight- and split-ticket voting, including ¡§blue¡¨ and ¡§green¡¨ camps. By cross-table and logit model analysis, the properties of split-ticket voters and the recessive voters which were exclude in ¡§narrow sense¡¨ were identified. Finally, the major cause of split-ticket voting is the satisfaction of political affairs, and the principal cause of straight-ticket voting is the identification of political parties.

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