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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Data Mining in Customer Relationship Management: The Case of a Major Logistic Company / Data mining v oblasti Customer relationship managemet: Analýza dat významné logistické společnosti

Nekvapil, Viktor January 2012 (has links)
The thesis addresses possibilities of deploying the open source data mining system LISp-Miner in the customer relationship management (CRM), specifically in the area of lead management. This is basically a process of finding information about potential customers, qualifying those customers according to their potential (future value), and turning the selected potential customers to real customers. The data used includes the records concerning the lead management of a major logistic company operating worldwide (the company wanted to stay in anonymity). The data is analysed using the LISp-Miner system which is an academic software developed at the Faculty of Informatics and Statistics at the University of Economics, Prague. The thesis also pays attention to the collaboration with the business experts of the company which provided the data. The principle aim of the thesis is to provide information contributing to the possible change of internal processes of the company. Further aims are to propose directions of the use of the LISp-Miner system when solving a similar data mining task, and propose a simple and understandable way how to present the results. The aims have been achieved by doing the analysis in compliance with the CRISP-DM Methodology. The asset of the thesis is the description of the whole project which includes the analysis of real data using the LISp-Miner system. Further result of the thesis is the description of the lead management domain. Finally, the thesis offers the instructions and recommendations for future similar projects. Section I outlines the LISp-Miner system and its procedures. Section II - A case study describes the process of analysing the data. Two cycles ("iterations") of the analysis were performed. The chapters devoted to the both iterations have been structured according to the phases of the CRISP-DM Methodology. Section III summarises the observations gained during the entire project. Moreover, it gives recommendations and instructions for the application in case a similar project of the data analysis using the LISp-Miner system is designed.
12

Design Criteria for Wireless Mesh Communications in Underground Coal Mines

Griffin, Kenneth R. 04 June 2009 (has links)
The Mine Improvement and New Emergency Response (MINER) Act of 2006 was enacted in response to several coal mining accidents that occurred in the beginning of 2006. The MINER Act does not just require underground mines to integrate wireless communication and tracking systems, but aims to overall enhance health and safety in mining at both surface and underground operations. In 2006, the underground communication technologies available to the mining industry had inherent problems that limited communication capabilities. Since the passage of the MINER Act, there have been several developing applications for underground wireless communications. Underground wireless communications allow signals to propagate and take multiple paths to destinations providing a survivable, redundant, and adaptable means of communication and tracking. An underground wireless communications allow underground and surface personnel to directly correspond to one another without being as restricted as hardwired systems. Communication systems also allow miners to be tracked underground to provide a real-time or last known post-accident position, and ensure a more efficient rescue operation. In order to increase the overall efficiency of developing communication systems there is a need for modeling of wireless signal propagation in underground mines. Research, modeling, and analysis of wireless signal propagation in underground mines ongoing and developing with underground communications systems as the systems progress. The work on this project is based upon the Accolade system from L-3 Communications Global Security and Engineering Solutions but applies to all underground wireless mesh systems currently available. A general approach is taken to solving underground wireless communications networks to allow the design criteria to be adaptable to other communication systems belong the Accolade system. The data is based upon measurements and field work that took place July 2007 through December 2008 in International Coal Group's Sentinel Mine in Philippi, West Virginia. Comms, a computer method developed at the Virginia Center for Coal and Energy Research at Virginia Tech, allows underground mine communication networks to be solved and analyzed. Comms was developed to solve and analyze underground wireless communication networks. The method which Comms solves communication networks is not mine specific and may be adapted to predict the performance of a system(s) in another mine. The developed model discussed in Chapters 3 and 4 highlights the general signal loss parameters that are encountered by wireless signals in a mine. The model predicted the signal strength observed when encountering those categorized signal losses within 16 percent of the data measured during a mine survey. The model has been developed in a general manner to allow future investigation and pinpointing of additional interferences that occur within the underground environment. Wireless communications have proven to be the way of the future and will continue to be integrated into underground coal mines as mandated by the MINER Act. Wireless communications systems are a redundant and survivable means of communication that will be utilized in not only emergency and rescue efforts but daily operational communication as well. / Master of Science
13

Feasibility of an Integrated Thin Seam Coal Mining and Waste Disposal System

Basu, Kohinoor 09 January 1998 (has links)
The depletion of more attractive thicker and easily accessible coal seams in the central Appalachia will direct attention towards the extraction of coal seams thinner than 28 in. This thesis investigates the feasibility of an integrated mining and backfilling system applicable to thin seams. Two conceptual mining systems, namely Auger mining and Self Advancing Miner, have been proposed for this purpose. Both these systems are designed to remotely mine coal from the seams. Several attempts were made in the past to mine coal in a similar fashion but were not very successful due to several problems inherent to thin seams. The lack of effective steering techniques, accurate coal/rock interface and pillar thickness detection techniques were the main shortcomings of the systems. These problems were addressed in the proposed conceptual mining systems. Several coal/rock interface and rib thickness detection techniques currently available in the market or in the prototype stage have been discussed. Recent developments in coal/rock interface detection and direction sensing techniques have good potential in alleviating the previously encountered problems. Sensitivity analyses have been performed to assess the of effect critical mining parameters on the production potential of these systems. The self advancing miner has been found to be more promising than auger mining. Conceptual panels and face layouts for both systems have been included. Two types of filling methods namely pneumatic and hydraulic are considered applicable under thin seam conditions. A backfilling technique using rubber hoses for fill placement can be applied with both methods. Sensitivity analysis have been performed to establish the relationship between face operation cost, filling cost per ton and development cost per foot. Resulting analyses indicate that panel cost per short ton of coal is more sensitive to filling cost than on development cost. / Master of Science
14

Automatizace dataminingového procesu v datech o dopravních nehodách v České republice / Automation of a data mining process in the data about traffic accidents in the Czech Republic

Podavka, Jan January 2017 (has links)
This master thesis deals with automation process of a data mining in the LISp-Miner program. The aim of this thesis is to create an automated process that analyzes analytical questions in the data about traffic accidents in the Czech Republic using a LMCL scripting language and LM Exec module. Theoretical part of thesis describes the process of knowledge discovery in databases and most widely used methodology. It also describes the relevant topics for the work with LISp-Miner. The practical part is focused on description of traffic accidents in the Czech Republic, a description of the used data, creation and evaluation of analytical questions and especially a description of created scripts. The output of the thesis is a group of scripts and manual how to use them again, so they can be reused for analysis of actual data on traffic accidents not only in the Czech Republic, if they have the same data structure.
15

Empirické porovnání systémů dobývání znalostí z databází / Empirical comparison of systems for knowledge discovery in databases

Benešová, Kristýna January 2008 (has links)
S rostoucím množstvím shromažďovaných a ukládaných dat roste také potřeba a zájem majitelů těchto dat o využití jejich potenciálu k dalšímu rozhodování. Proto se vyvíjí nové přístupy a způsoby vycházející z informatiky, statistiky a oblasti strojového učení, které se této potřebě snaží vyhovět. Cílem této diplomové práce je uvést proces dobývání znalostí dat z databází na medicínských datech Tinnitus a představit systémy LISp-Miner a Weka, které daný proces podporují. Obsahem teoretické části diplomové práce je shrnutí základních charakteristik a přístupů procesu dobývání znalostí. Praktická část diplomové práce je věnována realizaci celého procesu v jednotlivých krocích. V samotném kroku modelování jsou využity již zmíněné systémy akademické LISp-Miner a Weka. Poslední část praktické části práce patří prezentaci dosažených výsledků a vlastnímu zhodnocení systémů.
16

Aplikace metod DZD na otevřená data / Use of data mining techniques for open data

Prokůpek, Miroslav January 2015 (has links)
This diploma thesis examines applications of datamining methods to open data. It is realized by solving analytical questions using the LISp-Miner system. Analytical questions are examined in data from The Czech Trade Inspection Authority from the perspective of the data owner. Procedure used to solve analytical questions is 4ft-Miner. There are presented and resolved four analytical questions, which are the results of the work. Work includes a detailed description of the transformation of the relational database into a format suitable for data mining. A detailed description of the data is also included. The theoretical part deals with the GUHA method and CRISP-DM methodology.
17

A FIEMG, a crise do desenvolvimentismo e o neoliberalismo (1985-1994): um olhar “para fora”, outro “para dentro”

Souza, Maedison de 28 August 2015 (has links)
Submitted by Renata Lopes (renatasil82@gmail.com) on 2015-12-17T12:17:28Z No. of bitstreams: 1 maedisondesouza.pdf: 1065184 bytes, checksum: fe416e41af9bc3134933fd7b3ba8b0df (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2015-12-17T17:58:18Z (GMT) No. of bitstreams: 1 maedisondesouza.pdf: 1065184 bytes, checksum: fe416e41af9bc3134933fd7b3ba8b0df (MD5) / Made available in DSpace on 2015-12-17T17:58:18Z (GMT). No. of bitstreams: 1 maedisondesouza.pdf: 1065184 bytes, checksum: fe416e41af9bc3134933fd7b3ba8b0df (MD5) Previous issue date: 2015-08-28 / Esta dissertação discorre sobre o processo de desenvolvimento mineiro, marcado por forte participação do Estado e do capital estrangeiro. Focaliza a participação das entidades empresariais nesse processo, em especial a FIEMG, destacando sua defesa de um projeto de industrialização liderado pela indústria siderúrgica, no centro do estado, mas capaz de irradiar-se para as diferentes regiões de Minas. A partir da década de 1950, a FIEMG passa ao domínio de segmentos menos dinâmicos e dispersos da indústria e sua atuação tende a fixar-se na defesa de demandas imediatas do empresariado, pouco integradas num projeto global, ao lado da afirmação do corpo técnico da entidade na produção de seu discurso. Na década de 1980, em meio à crise do desenvolvimentismo e afirmação das ideias neoliberais, a FIEMG desenvolveu uma atuação afinada com o discurso das entidades nacionais da indústria, neste momento críticas à presença do Estado na economia, mas, em Minas Gerais, seu discurso manteve o apelo ao Estado para a promoção do desenvolvimento no âmbito regional. / This dissertation discusses the process of miner development, marked by strong participation of State and foreign capital. It focuses on the participation of business entities in this process, especially FIEMG, highlighting its defense of an industrialization project led by the steel industry, in the center of the state, it’s possible that radiate to the different regions of Minas. From the 1950s, the FIEMG enters the domain of less dynamic segments and scattered industry and its performance tends to settle in the defense of immediate demands of the business, little integrated into a global project, next to the statement to the staff of entity in the production of his speech. In the 1980s, during the developmentalism crisis and affirmation of neoliberal ideas, FIEMG developed a finely tuned performance with the discourse of national industry entities at this time criticism of the state presence in the economy but, in Minas Gerais, his speech retained the appeal to the state to promote the development at the regional level.
18

Možnosti prezentace výsledků DZD na webu / Options of presentation of KDD results on Web

Koválik, Tomáš January 2015 (has links)
This diploma thesis covers KDD analysis of data and options of presentation of KDD results on Web. The paper is divided into three main sections, which follow the whole process of this thesis. In the first section are mentioned theoretical basics needed for understanding of discussed problem. In this section are described notions data matrix and domain knowledge, concept of CRISP-DM methodology, GUHA method, system LISp-Miner and implementation of GUHA method in LISp-Miner including description of core procedures 4ft-Miner and CF-Miner. The second section is dedicated to the first goal of this paper. It briefly summarizes analysis made during pre-analysis phase. Then is described process of analysis of domain knowledge in a given data set. The third part focuses on the second goal of this thesis, which is problem of presentation of KDD results on Web. This section covers brief theoretical basis for used technologies. Then is described development of export script for automatic generation of website from results found using LISp-Miner system including description of structure of the output and recommendations for work in LISp-Miner system.
19

Doménové znalosti, analytické otázky, systém LISp-Miner a data ADAMEK / Knowledge base, analytical questions, LISp-Mner system and ADAMEK data

Kubín, Richard January 2009 (has links)
The steps associated with the analytical question solving in terms of LISp-Miner system in ADAMEK medical data are the theme of this thesis. The operating sequence of using 4ft-Miner and SD4ft-Miner procedures in ADAMEK data together with the possibility of further use of formalized background knowledge and preparing routing for automatization of the downrighted steps are the objectiv of this thesis. The summary of the basic concepts and axioms of association rules and GUHA method is the content of the theoretical part of the thesis. Operativ part starts from CRISP-DM methodology. The operating sequence enabling searching for interesting association rules in different data, that is applied on STULONG medical data afterwards in order to get instigations for it's revision, is the produce of this thesis. Used data that come from EuroMISE are concern with cardiological patients.
20

Vizualizace asociačních pravidel ve webovém prostředí / Association rule visualization in web environment

Škrabal, Radek January 2011 (has links)
The aim of this thesis is to implement a web interface for the LISp-Miner academic system which provides association rule mining capability. There is a new trend these days for knowledge discovery in databases applications which are being transformed from desktop applications to web applications and this arises both new opportunities and issues. This thesis describes new interactive approach for association rule mining in which the user is an essential part of the algorithm and can alter the task setting. Users can also collaborate by creating domain knowledge repository which helps finding new interesting information out of the data.

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