đề tài data mining
Tài liệu Multimedia Data Mining 3 pdf
... dependence relationships from the data, © 2009 by Taylor & Francis Group, LLC72 Multimedia Data Mining the literature to perform specific multimedia data mining tasks as exemplifiedin the ... presentwe take this data set as the training data; the training data set representsthe correct classification that we would like an SVM to eventually perform,by means of separating the data with a hyperplane, ... classes are exclusive, and for each input data object,there is one but only one output class that maps to the input data object.However, in many multimedia data mining applications, the output space...
- 71
- 416
- 1
Tài liệu CUSTOMER SATISFACTION USING DATA MINING TECHNIQUES ppt
... BASED DATA MINING TECHNIQUESThe objective of data mining is to extract valuable information from one’s data, to discover the ‘hiddengold’. In Decision Support Management terminology, data mining ... one search for patterns of information in data (Parsaye, 1997).Figure 2: Rule Induction process Data mining techniques are based on data retention and data distillation. Rule induction models ... process.REFERENCES[1] Akeel Al-Attar, 1998, Data Mining – Beyond Algorithms’, http://www.attar.com/tutor /mining. htm.[2] Berry, J. A. Michael; Linoff, Gordon, 1997, Data Mining Techniques: For Marketing,...
- 4
- 434
- 1
Tài liệu Data Preparation for Data Mining- P10 docx
... Series Data Series data differs from the forms of data so far discussed mainly in the way in which the data enfolds the information. The main difference is that the ordering of the data ... reason that series data has to be prepared differently from nonseries data. There is a large difference between preparing data for modeling and actually modeling the data. This book focuses ... Modeling Series Data Given these tools for describing series data, how do they help with preparing the data for modeling? There are two main approaches to modeling series data. One uses...
- 30
- 388
- 0
Tài liệu Data Preparation for Data Mining- P11 pdf
... optimized mining toolset, could not deal with a multiterabyte, 7000+ variable data set required on one mining project. Another reason that high dimensionality presents difficulties for mining ... series data. Data visualization is a broad field in itself, and there are many highly powerful tools for handling data that have superb visualization capability. For small to moderate data sets, ... like. Does one of them seem to fit some underlying trend in the data? If so, subtract it from the data. When graphed, does the data fit the horizontal axis better? If yes, fine. If no, keep trying....
- 30
- 355
- 0
Tài liệu Data Preparation for Data Mining- P12 pptx
... the mining tool the customer had selected, causing repeated mining software failures and system crashes during mining. The data reduction methodology described above reduced the data ... density manifold stability. But here is where data preparation steps into the data survey. The data survey (Chapter 11) examines the data set as a whole from many different points of view. ... rather than data preparation? Data preparation concentrates on transforming and adjusting variables’ values to ensure maximum information exposure. Data surveying concentrates on examining a...
- 30
- 369
- 0
Tài liệu Data Preparation for Data Mining- P13 pptx
... do with data mining? The whole purpose of the data survey is to help the miner draw a high-level map of the territory. With this map, a data miner discovers the general shape of the data, as ... can be used to examine data as instances, data as variables, the data set as a whole, and various parts of a data set. Entropy and mutual information are used to evaluate data in many ways. Some ... Such data has a perspective. When mining perspectival data sets, it is very important to use nonperspectival test and evaluation sets. With the best of intentions, the mining data has...
- 30
- 500
- 0
Tài liệu Data Preparation for Data Mining- P14 pdf
... 11.4.1 Confidence and Sufficient Data A data set may be inadequate for mining purposes simply because it does not truly represent the population. If a data set doesn’t represent the population ... properly part of the data survey. The survey only looks at and measures the data set presented. While it provides information about the data set, it does not manipulate the data in any way, exactly ... of the instances can be assembled into a data set, and that data set examined for similarity to the training data set, but that only tells you that the data set now assembled was or wasn’t drawn...
- 30
- 378
- 0
Tài liệu Data Preparation for Data Mining- P15 doc
... statisticians and data miners still have different philosophical approaches to modeling from data. 12.1.3 Data Mining vs. Exploratory Data Analysis Exploratory data analysis (EDA) ... try data mining, a new discipline to her, but one that had received good reviews in the business press. How did the data mining project differ from the statistical approach? Data mining ... relationships from this data that are then to be applied to other similar data. Whatever can be discovered in this data is sufficient, since it works in this data set, and there is no other data set to...
- 30
- 320
- 0
Tài liệu Data Preparation for Data Mining- P16 ppt
... test data set (top) and an 85.8283% accuracy in the test data for the prepared data set (bottom). 12.4 Practical Use of Data Preparation and Prepared Data How does a miner use data ... working with the data. When the data is easy to model, better models come out faster, which is the technical purpose of data preparation. How does data preparation make the data easier to work ... Data preparation looked at here has dealt with data in the form collected in mainly corporate databases. Clearly this is where the focus is today, and it is also the sort of data on which data...
- 16
- 304
- 0
Tài liệu Data Preparation for Data Mining- P17 ppt
... what does data preparation alone achieve in this data set? In order to demonstrate that, we will look at two models of the data one on prepared data, and the other on unprepared data. ... Data preparation looked at here has dealt with data in the form collected in mainly corporate databases. Clearly this is where the focus is today, and it is also the sort of data on which data ... data mining tools and data modeling tools focus. The near future will see the development of automated data preparation tools for series data. Approaches for automated series data preparation...
- 15
- 361
- 0
Tài liệu Data Mining P2 ppt
... required for mining distributed data, handling the meta -data and the mappings required for mining the distributed data. Spatial database systems involve spatial data - that ... algorithms and is termed distributed data mining [51].Traditional data mining algorithms require all data to be mined in a single,centralized data warehouse. A fundamental challenge ... 8.Multimedia data mining, including text mining, image mining, and Web min-ing, is dealt with in Chapter 9. Finally, certain aspects of Bioinformatics, asan application of data mining, ...
- 20
- 363
- 0
Tài liệu Data Mining P1 doc
... Introduction to Data Mining 11.1 Introduction 11.2 Knowledge Discovery and Data Mining 51.3 Data Compression 101.4 Information Retrieval 121.5 Text Mining 141.6 Web Mining 151.7 ... actual data for mining. This also increases the mining efficiency by reducingthe time required for mining the preprocessed data. Data preprocess-ing involves data cleaning, data transformation, ... multimedia data exploration, data mining should no longer be restricted to the mining of knowledge fromlarge volumes of high-dimensional datasets in traditional databases only....
- 30
- 321
- 0
Tài liệu Wiley - Data Mining with Microsoft SQL Server 2008 (2009)01 pdf
... Implementing a Data Mining Process Using Office 2007 187Introducing the Data Mining Client 188Importing Data Using the Data Mining Client 189 Data Exploration and Preparation 190Discretizing Data with ... Data Mining 413 Mining Aggregated Data 414OLAP Pattern Discovery Needs 415OLAP Mining versus Relational Mining 415Building OLAP Mining Models Using Wizards and Editors 417Using the Data Mining ... 584Exploring New Data Mining Frontiers and Opportunities 585Further Reference 586Microsoft Data Mining 586General Data Mining 586Appendix A: Data Sets 589MovieClick Data Set 589Voting Records Data...
- 40
- 515
- 2
Tìm thêm: xác định các mục tiêu của chương trình xác định các nguyên tắc biên soạn khảo sát chương trình đào tạo của các đơn vị đào tạo tại nhật bản xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu nội dung cụ thể cho từng kĩ năng ở từng cấp độ xác định mức độ đáp ứng về văn hoá và chuyên môn trong ct phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ mở máy động cơ lồng sóc các đặc tính của động cơ điện không đồng bộ hệ số công suất cosp fi p2 đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 đặc tuyến dòng điện stato i1 fi p2 động cơ điện không đồng bộ một pha sự cần thiết phải đầu tư xây dựng nhà máy thông tin liên lạc và các dịch vụ chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008