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Efficient Gathering of Performance Information on Multicore Systems
Tůma, Tomáš ; Yaghob, Jakub (referee) ; Tůma, Petr (advisor)
Modern multicore processors provide performance counters that export information on various essential aspects of software execution, from instruction decoding to cache utilization. Typically, a processor is capable of counting a small subset from hundreds of different event types, the events themselves can occur almost every processor clock tick. This yields a significant amount of data which is difficult to collect without disrupting the execution itself. The goal of the thesis is to apply compressive sampling - a special method of sampling signals that allows to reconstruct sparse signal from a small number of samples - to the performance counter data.
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External Metric Hashing using the D-index
Jakl, Jiří ; Lokoč, Jakub (referee) ; Skopal, Tomáš (advisor)
The goal of this work was to implement recently presented data structure D-Index, to investigate behaviour of this metric access method and to compare its eciency with other indexing methods. As reference, M-Tree, PM-Tree and LAESA (approximated as PM-Tree with leaf pivots only) indexing methods were chosen. Performance measurements and comparison were done on various types of data with dierent distribution of distances.In this work, the D-Index structure was designed to support automatic build up of the index according to initial parameter setup and to allow dynamic insertion as well. Beside implementation of D-Index, an investigation of features of this indexing method was done. To achieve exibility and sucient performance of the solution, great eort was put on optimization and object realization. This allowed testing new ideas for choosing internal parameters and obtaining relevant results from measuring of investigated methods. The common principles (based on properties of metric spaces) of metric access methods were presented as part of their description. This work covered selected metric functions, several pivot selections and some aws of metric access methods.
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Regression Benchmarking Web
Babka, David ; Parízek, Pavel (referee) ; Tůma, Petr (advisor)
During the software development the performance of the software is often important part of client requirements. Considering the constant development process of the software, comparison of the performance testing results could pinpoint to various defects in the source code, which could lead to optimizing software and its performance. This thesis focuses on implementation of flexible web application created for retrieving the performance results and presenting them in plots and other forms. The plots are dynamically generated to provide as much transparency as possible. This application will also provide the ability to send e-mails to users with the information about new measurement results.
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Competing on Analytics
Nagin, Gleb ; Pour, Jan (advisor) ; Basl, Josef (referee)
Business analytics refers to the skills, technologies, applications and practisies for continuous iterative exploration and investigation of past business performance to gain insight and drive business planning. Business analytics focuses on developing new insights and understanding of business performance based on data and statistical methods. Business intelligence traditionally focuses on using a consistent set of metrics to both measure past performance and guide business planning, which is also based on data and statistical methods. Analytics makes extensive use of data, statistical or quantitative analyses, explanatory and predictive modeling, and fact based management to drive decision, making. Analytics may be used as input for human decisions or may drive fully automated decisions. In other words, querying, reporting, OLAP, and alert tools can answer questions such as what happened, how many, how often, where the problem is, and what actions are needed. Business analytics can answer questions like why is this happening, what if these trends continue, what will happen next, what is the best that can happen (optimize). Example of application analytics in different areas: banks use data analyses to differentiate among customers based on credit risk, usage of other characteristics with appropriate product offering. Harrah's company (from 2010 renamed and called Caesers entertaiment. Gaming corporation that owns and operate over 50 casinos, hotels, and seven golf courses under several brands), uses analytics for customer loyalty programs. Deere & Company (manufacturer of agricultural machinery like tractors, combine harvesters, sprayers and other) saved more than $1 billion by employing and implementing a new analytical tool to better optimize inventory. We can mention areas where within analytics are basic domain model: sales/retail business, financial services, risk & credit, marketing, fraud, pricing, telecommunications, supply chain, transportation and many others.
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Thermoelectric device with Peltier elements
Klír, Tomáš ; Říha, Kamil (referee) ; Rampl, Ivan (advisor)
This bachelors thesis contains description of particular components of the biological termostat. There is described Thermoelectric effect and Peltier element, witch it use. The text describes the most common methods of temperature measurement. For its management are described basic types of regulators - P, PI, PD, PID and PSD. This work contains the theoretical description and methods for the determination of their parameters. There are also described circuit elements for performance management of Peltier element and microprocessor and a description of control program of the microprocessor.
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The design of software modules to control automatic tool change
Habán, Tomáš ; Holub, Michal (referee) ; Bradáč, František (advisor)
The presented work is concerned in system of automatic tools change for machining centers. The theoretical part of this diploma work is about basic distribution. The following practical part includes mathematical description of testing stand of systems of automatic tools change STD – 25. In next step the dynamic model of this mechanism and model of servomotor is realized using simulating environment as Matlab/Simulink. The simulation of designed model of complete system is optimized in aspect of rate of change. The obtained values of servomotors performance are compared for various loads of exchange arm at the appropriate times of change. The last section briefly describes other possible alternative solution of similar dynamic systems using connection of software SolidWorks and NI LabView.
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Design of search engine for modern needs
Maršálek, Tomáš ; Palovská, Helena (advisor) ; Strossa, Petr (referee)
In this work I argue that field of text search has focused mostly on long text documents, but there is a growing need for efficient short text search, which has different user expectations. Due to this reduced data set size requirements different algorithmic techniques become more computationally affordable. The focus of this work is on approximate and prefix search and purely text based ranking methods, which are needed due to lower precision of text statistics on short text. A basic prototype search engine has been created using the researched techniques. Its capabilities were demonstrated on example search scenarios and the implementation was compared to two other open source systems representing currently recommended approaches for short text search problem. The results show feasibility of the implemented prototype regarding both user expectations and performance. Several options of future direction of the system are proposed.
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Small UAV parachute recovery system design
Pejchar, Jan ; Jebáček, Ivo (referee) ; Popela, Robert (advisor)
The thesis is focused on the small UAV’s rescue system design. The thesis is divided into related sections reflecting the design process. The first part deals with general problems of parachute equipment. Another part is evaluating critical situations in manual and autonomous control of the airplane. The deceleration device is based on this critical situations as well as the calculated structure loading. Next is the description and evaluation of experiments to verify the performance of modern parachutes. The thesis also includes a simplified proposal ejection mechanism designed in 3D software and documentation of the of model aircraft construction for testing and predicting behaviour in autonomous flight mode.
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Procurement of Transportation Services in Anheuser-Busch InBev
Ivashkevich, Alexandra ; Vinš, Marek (advisor) ; Kolář, Petr (referee)
Nowadays, companies involved in the international trade and production of goods in order to retain customers and increase market share are forced to assure excellence in the performance at all stages of their supply chains. Transportation plays critical role and can be argued to be the most crucial link in the supply chain determining its success or failure. However, regardless of such high importance, this process is very often outsourced as companies do not possess sufficient expertise and resources to deploy this function in-house. Thus, companies have to develop effective strategies and plan their procurement activities accordingly and then manage the outcome. There is not a lot of studies that would take a narrow look at the development of procurement strategy for transportation services in particular. This work is aimed to get the insight and discuss strategic, planning level and post operational evaluation of the procurement of transportation services and explore practical implication on the example of AB InBev through in-depth interviews with company employees. As an outcome this work is aimed to provide an outline of the company performance, value added or negative aspects as a result of application of previously discussed strategies.
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Design of the methodology for creating model cycling rides in the training of the cycling part of the triathlon using the power meter
Babica, Milan ; Horčic, Josef (advisor) ; Kovářová, Lenka (referee)
SURNAME AND NAME OF THE AUTHOR: Babica Milan FIELD OF STUDY: Physical Education and Sport SUPERVISOR: PaedDr. Josef Horcic, Ph.D. Theme: Design of the methodics for creating model cycling rides in the training of the cycling part of the triathlon using the power meter. Objectives: Design of the methodics for creating model cycling rides in the training of the cycling part of the triathlon for an intermittent method with short distances using the power meter. Method: The pilot study focuses on the methodics for creating model cycling rides in the cycling part of the triathlon and their evaluation. Firstly, we perform rides to determine the critical power levels. Based on the critical power we derive the intensity of model rides for the training method of short intermittent distances Intensity II and III. By evaluating the results we gain an insight into the questions of creating the model rides. All field rides are performed by a single person. In order to acquire data which correspond to the real training environment the test and model rides are performed in the field conditions. Results: Based on the results it can be stated that using the external power meter Power Tap PRO to manage the training with short intermittent distances by applying intensity II or III is suitable. It is necessary to work...
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