Ensemble Stream Modeling and Data-cleaning are sensor information processing systems have different training and testing methods by which their goals are cross-validated. This research examines a mechanism, which seeks to extract novel patterns by generating ensembles from data. The main goal of label-less stream processing is to process the sensed events to eliminate the noises that are uncorrelated, and choose the most likely model without over fitting thus obtaining higher model confidence. Higher quality streams can be realized by combining many short streams into an ensemble which has the desired quality. The framework for the investigation is an existing data mining tool. First, to accommodate feature extraction such as a bush or natural forest-fire event we make an assumption of the burnt area (BA*), sensed ground truth as our target variable obtained from logs. Even though this is an obvious model choice the results are disappointing. The reasons for this are two: One, the histogram of fire activity is highly skewed. Two, the measured sensor parameters are highly correlated. Since using non descriptive features does not yield good results, we resort to temporal features. By doing so we carefully eliminate the averaging effects; the resulting histogram is more satisfactory and conceptual knowledge is learned from sensor streams. Second is the process of feature induction by cross-validating attributes with single or multi-target variables to minimize training error. We use F-measure score, which combines precision and accuracy to determine the false alarm rate of fire events. The multi-target data-cleaning trees use information purity of the target leaf-nodes to learn higher order features. A sensitive variance measure such as f-test is performed during each node’s split to select the best attribute. Ensemble stream model approach proved to improve when using complicated features with a simpler tree classifier. The ensemble framework for data-cleaning and the enhancements to quantify quality of fitness (30% spatial, 10% temporal, and 90% mobility reduction) of sensor led to the formation of streams for sensor-enabled applications. Which further motivates the novelty of stream quality labeling and its importance in solving vast amounts of real-time mobile streams generated today.

Actualmente, se conoce que existe una gran variedad de métodos multidimensionales que permiten medir la calidad del servicio del cliente que ofrecen los restaurantes, por lo tanto, resulta de gran importancia contar con un estudio que permita conocer los beneficios y limitaciones que tiene cada uno de estos para así aplicar el más adecuado según corresponda. Por tal motivo, el propósito de la presente investigación, es el de realizar un análisis comparativo del uso de los distintos métodos y herramientas que actualmente existen para poder medir la calidad de servicio en los distintos tipos de restaurantes. Para la realización de este trabajo de investigación se realizó una exhaustiva revisión bibliográfica, tanto en inglés como en español, de este modo se obtuvo distintos puntos de vista desde perspectivas completamente diferentes de la percepción de la calidad de servicio y la expectativa del consumidor. Cabe mencionar que la totalidad de las fuentes son actuales, dado que se encuentran entre los años de 2015 como máximo al 2020. Las fuentes encontradas mencionan que la calidad de servicio es un término que varía según el contexto en el que este sea evaluado y de manera específica dependiendo del tipo de establecimiento. Por ello, se explica que existen una gran diversidad de métodos que son empleados para medir la calidad de servicio en restaurantes: Servqual, Kano Model, Servperf y Dineserv. Por lo tanto, se concluye que de todas las herramientas y métodos que han sido comparados, Dineserv es aquel que presenta un mayor número de beneficios con respecto al resto de modelos, pues es específico para el sector de restauración. / Currently, it is known that there are a variety of multidimensional methods that allow us to measure the quality of customer service that is being offered in restaurants. Therefore, it is of huge importance to count with a study that allows knowing the benefits and limitations of each of these in order to apply the most appropriate. Due to these, the purpose of the present investigation is to make a comparative analysis of the use of the different methods and tools that currently exist to measure the quality of service depending on the restaurant type. To carry out this study, there has been an exhaustive investigation of bibliographic sources from different authors both in spanish and in english. In this way it will allow us to obtain different perspectives around the world about the perception of the quality of service and the consumer’s expectative. It is worth mentioning that the totality of the sources are current, since they are between the years of 2015 at most to 2020. The sources found mention that the quality of service is a term that varies depending on the context in which it is evaluated and to be more specific it depends on the type of establishment. Due to this, it is said that there are a variety of methods that are used to measure the quality of service in restaurants: Kano Model, Servperf and Dineserv. Because of that we can conclude that these tools and methods have been compared in terms of limitations and benefits in order to determine which of these adapts better according to the type of restaurant that is being analyzed. / Trabajo de investigación

La presente investigación tuvo como principal objetivo analizar la percepción de los pasajeros de 25 y 64 años con respecto a la calidad del servicio en el segmento descrito con el propósito de conocer la industria hotelera y turística cusqueña. El alcance de la investigación es un estudio descriptivo y correlacional y el tipo de diseño es no experimental. El principal enfoque de estudio es cuantitativo y de forma complementaria se empleó el enfoque cualitativo. Se realizó 343 encuestas enviadas por conveniencia a pasajeros de Lima Metropolitana que se hospedaron en hoteles de una y dos estrellas de Cusco. Para realizar la evaluación de la percepción de la calidad de servicio se utilizó una metodología de valoración de desempeño llamada Service Performance (SERVPERF por sus siglas en inglés). Este modelo, emplea cinco dimensiones para medir la calidad de servicio: Elementos Tangibles, Fiabilidad, Capacidad de Respuesta, Seguridad y Empatía, las que fueron utilizadas para responder a las hipótesis planteadas. El análisis de datos y resultados validó una alta confiabilidad del cuestionario de 0.970. Asimismo, se aplicó el análisis de confiabilidad a las cinco dimensiones. Como resultado de la investigación, se concluyó que la percepción de los pasajeros de Lima Metropolitana con relación a la calidad de servicio en el segmento de estudio es alta. Además, existe correlación entre las dimensiones Seguridad y Elementos Tangibles, así como para Seguridad y Empatía. / The main objective of this research was to analyze the perception of passengers ages 25 to 64, with respect to the quality of service in the segment described to know the Cusco hotel and tourism industry. The scope of the research is a descriptive and correlational study, and the type of design is non-experimental. The main study approach is quantitative and in a complementary way the qualitative approach was used. 343 surveys sent for convenience to passengers from Lima Metropolitana who stayed in one and two-star hotels in Cusco were carried out. To evaluate the perception of service quality, a performance assessment methodology called Service Performance (SERVPERF) was used. This model uses five dimensions to measure service quality: Tangible Elements, Reliability, Responsiveness, Security and Empathy, which were used to respond to the hypothesis raised. The data and results analysis validated a high reliability of the questionnaire of 0.970. Likewise, the reliability analysis was applied to the five dimensions. As a result of the investigation, it was concluded that the perception of the passengers of Lima Metropolitana in relation to the quality of service in the study segment is high. In addition, there is a correlation between the dimensions Security and Tangible Elements, as well as for Security and Empathy. / Tesis

This work deals with the wireless Wi-Fi networks, that used unlicenced ISM frequency band 2,4 GHz. These wireless networks are very extended in these days and used mainly for the Internet connection. With the multimedia data transfers expanding it’s necessary to ensure the specific quality of service QoS in wireless networks mainly for applications, which are sensitive to delay or packets lost. The main aim of this work is to describe Wi-Fi networks based on IEEE 802.11b/g/n standards, description of QoS techniques according to IEEE 802.11e standard and description of parameters describing QoS for the VoIP services. The practical part is divided on a two parts. The problems of measuring the radio link quality and the creation of simple program for quality of wireless connection analysis are solved in the first part. The second part incluledes measuring of the lost packets number in Wi-Fi network with the commercial application AirMagnet Laptop Wireless LAN Analyzer and measuring of the signal noise influence with the help of spectrum analyzer and vector signal generator.

The thesis described the proposal for a wireless network problems. There are recorded and compared the characteristics of different wireless technologies. The possibility of voice communication securing is outlined and solutions implemented in the form of ZRTP protocol. The requirements for quality of service are discussed and the solutions to this issue are proposed. Other chapters are devoted to the actual design of specific equipment, including antennas and advance resource. The whole network is practically implemented in the mountainous countryside of eastern Wallachia. In conclusion, this work is network mate in terms of QoS (quality of service) and tested in terms of prioritization of voice communication.

Tato práce se zabývá technologií Multiprotocol Label Switching a to zejména moderními metodami, které je možné použít v rámci této technolologie. Jako příklad lze uvést využití podpory kvality služeb při směrování. V práci jsou navrhnuty a simulovány různé topologie a scénáře, které ověřují možnosti využití MPLS v podpoře kvality služeb.

This master’s thesis deals abou the transmission of voice in communications networks. The theoretical part describes criteria for optimizing voice, such as quality of service, type of service, level of service, service type, and mean opinion score. Next I describe the Internet Protocol, comparing IPv4 and IPv6, VoIP, including security, protocols and parameters necessary for transmission. Other part is about neural networks. There are basically described the neural network, Hopfield neural network and Kohenen neural network. The research is based on a comparison of the network without ensuring the quality of service and with ensuring quality of service. Then, there are compared two types of switches. Classical switch-controlled sequentially, and switch controlled by neural networks. The overall simulation program is implemented in Opnet Modeler. The conclusion deals with the creation of laboratory tasks in this program to compare the different systems of ensuring quality of service.

Department of Advanced Nursing Science / MCur

El objetivo del presente trabajo de investigación es desarrollar la propuesta de negocios, a través de una plataforma virtual, para la atención de mascotas domésticas, dirigido a los dueños de estas mascotas y centro veterinarios que en los últimos años han tenido un crecimiento del 76% a Nivel Nacional y un 91% solo en Lima Metropolitana. Se ha identificado un mercado de dueños de mascotas (usuarios), en amplio crecimiento que busca cada día, centros veterinarios especializados que brinden un servicio de alta calidad, conectividad en línea, con información actualizada y al mismo tiempo a costos mínimos necesarios. Así mismos centros veterinarios (clientes) que buscan los conecten con su público objetivo a través de las redes sociales y todo medio informático que incremente su cartera de clientes y que permitan desarrollar la publicidad de sus servicios a bajos costos. En la primera parte del trabajo se ha desarrollado tanto el planeamiento estratégico con el fin de recopilar información valiosa que ha permitido corroborar supuestos y determinar los puntos más valorados por los usuarios y clientes con respecto a la propuesta de valor y así poder utilizarlas en la fase posterior, es decir en nuestro plan de marketing. En efecto, en dicho plan, se identificó claramente el público objetivo y se establecieron los medios mediante los cuales se realizará la publicidad y difusión de la propuesta además de todos los componentes del marketing mix. En las secciones posteriores se detalla en plan de operaciones, la estructura organizacional y de recursos humanos, y finalmente se ejecuta un análisis financiero, el cual ha permitido confirmar la factibilidad del proyecto. / The objective of this research work is to develop the business proposal, through a virtual platform, for the care of domestic pets, aimed at the owners of these pets and veterinary centers that in recent years have had a growth of 76% at the National Level and 91% only in Metropolitan Lima. A growing market of pet owners (users) has been identified that is looking every day for specialized veterinary centers that provide a high quality service, online connectivity, with updated information and at the same time at the minimum necessary costs. Likewise, veterinary centers (clients) that seek to connect them with their target audience through social networks and all computer media that increase their client portfolio and that allow them to develop the advertising of their services at low costs. In the first part of the work, the strategic planning has been developed in order to collect valuable information that has allowed to corroborate assumptions and determine the points most valued by users and customers with respect to the value proposition and thus be able to use them in the phase later, that is, in our marketing plan. Indeed, in said plan, the target audience was clearly identified and the means by which the proposal will be publicized and disseminated, as well as all the components of the marketing mix, were established. In the subsequent sections, the operations plan, the organizational and human resources structure are detailed, and finally a financial analysis is carried out, which has confirmed the feasibility of the project. / Trabajo de investigación

Este trabajo de investigación tiene como objetivo evaluar las dimensiones de calidad de servicio que ofrecen las aerolíneas Low Cost para comprender cómo la marca responde ante  las expectativas del cliente relacionadas a la satisfacción del mismo. Sin embargo, existen variables interrelacionadas al objeto de estudio que los usuarios utilizan para evaluar su relación con la marca y que determinan el éxito o el fracaso de una relación entre lo que ofrece la aerolínea hacia el consumidor. Estas variables son: imagen percibida y el valor percibido, e indican que el pasajero puede tener una imagen predeterminada de los productos y servicios que ofrece la aerolínea Low Cost. Cabe resaltar que no todas las variables interrelacionadas impactan de la misma manera al pasajero, esto depende de sucesos anteriores que el cliente haya experimentado o no con la marca. En cuanto a la calidad de servicio, las variables de investigación tendrán como modelo a SERVQUAL que evalúa las percepciones y expectativas de los clientes, ya sean estos pasajeros frecuentes o nuevos. Para este estudio, se proyectó evaluar a usuarios de aerolíneas Low Cost que hayan comprado sus tickets aéreos a la misma aerolínea sin utilizar a terceros como las agencias de viaje, para su propósito y que viajan del aeropuerto de Lima, Jorge Chávez, a otro destino nacional en los últimos 6 meses (contando desde Julio del 2019 a Diciembre del mismo año). / This research work aims to evaluate the dimensions of service quality offered by Low Cost airlines to understand how the brand responds to customer expectations related to customer satisfaction. However, there are variables interrelated to the object of study that users use to evaluate their relationship with the brand and that determine the success or failure of a relationship between what the airline offers to the consumer. These variables are: perceived image and perceived value, and indicate that the passenger may have a predetermined image of the products and services offered by the Low Cost airline. It should be noted that not all interrelated variables impact the passenger in the same way; this depends on previous events that the customer may or may not have experienced with the brand. As far as service quality is concerned, the research variables will be modeled on SERVQUAL, which evaluates customer perceptions and expectations, whether these are frequent or new passengers. For this study, it was projected to evaluate Low Cost airlines users who have purchased their air tickets from the same airline without using third parties such as travel agencies, for their purpose and who travel from Lima's Jorge Chavez airport to another national destination in the last 6 months (from July 2019 to December of the same year). / Trabajo de investigación