data mining tutorial

... small dataset, need all observations to estimate parameters of interest • Data mining – loads of data, can afford “holdout sample” • Variation: n-fold cross validation – Randomly divide data into ... Multiple testing • • • • • • 50 different BPs in data, m=49 ways to split Multiply p-value by 49 Bonferroni – original idea Kass – apply to data mining (trees) Stop splitting if minim...

Ngày tải lên: 04/03/2013, 14:32

Ngày tải lên: 04/03/2013, 14:32

... công cụ MATLAB II TỔNG QUAN VỀ KHAI PHÁ DỮ LIỆU - DATA MINING 1 .Khai phá liệu gì? Khai phá liệu (datamining) định nghĩa trình chắt lọc hay khai phá tri thức từ lượng lớn liệu Thuật ngữ Dataming ... tích liệu/ mẫu), data archaeoloogy (khảo cổ liệu) , datadredging(nạo vét liệu) , cách gần Data Mining hiểu là: tập hợp kỹ thuật sử dụng để tự động khai thác tìm...

Ngày tải lên: 21/05/2014, 06:17

... trong qui trình KDD Pattern Evaluation Data mining Task relevant data Data warehouse Data cleaning Knowledge Data integration selection Mục đích KTDL Data Mining Descriptive Predictive Classification ... Environment • Subject = Customer • Data Warehouse Biến thời gian • Time • Data • 01/97 Data for January • • 02/97 Data for February • • 03/97 Data for March • • Data...

Ngày tải lên: 18/01/2013, 16:15

... Springer-Verlag, 20 06  [5] ZhaoHui Tang, Jamie MacLennan, Data Mining with SQL Server 20 05”, Wiley Publishing, 20 05  [6] Oracle, Data Mining Concepts”, B28 12 9-0 1, 20 08  [7] Oracle, Data Mining ... “Principles of Data Mining , MIT Press, 20 01  [3] David L Olson, Dursun Delen, “Advanced Data Mining Techniques”, Springer-Verlag, 20 08  [4] Graham J Williams,...

Ngày tải lên: 23/01/2013, 22:17

... Name Chỉ định tên worksheet mà bạn chọn vào Nhấp vào nút ( ) để chọn từ danh sách worksheet sẵn Data range: Bạn nhập liệu bắt đầu với hàng không trống với phạm vi rõ ràng: • First non-blank row: ... thị tên theo lệnh thực hiện, bạn đặt tên lại cho lệnh “phan cum” hay tùy ý bạn Use partitioned data: Sử dụng liệu phân vùng Nếu trước liệu bạn thực lệnh Partition Number of clusters: Xác định ....

Ngày tải lên: 17/02/2013, 16:08

... rules”, it is said to be a good method to implement over different types of data in variant size 10 Hash-Based Approach to Data Mining CHAPTER 2: Algorithms using hashbased approach to find association ... hash function to divide the original set into subsets By this action, we will not waste too much time doing useless thing Our thesis with the subject Hash-based appr...

Ngày tải lên: 15/04/2013, 21:33

... Global Satisfaction Predicction Data Mining Global Satisfaction Predicction No Is prediction satisfactory? Yes Figure 3: Customer Satisfaction Survey Process • Preliminary analysis: customer satisfaction ... process Data mining techniques are based on data retention and data distillation Rule induction models (Figure 2) belong to the logical, pattern distillation bas...

Ngày tải lên: 22/10/2013, 09:15

... Transformations and Difficulties—Variables, Data, and Information Much of this discussion has pivoted on information—information in a data set, information content of various scales, and transforming ... their limited data capacity and inability to handle certain types of operations needed in data preparation, data surveying, and data modeling For exploring small data sets, an...

Ngày tải lên: 24/10/2013, 19:15

... data preparation requires three such steps: data discovery, data characterization, and data set assembly • Data discovery consists of discovering and actually locating the data to be used • Data ... stages: Accessing the data Auditing the data Enhancing and enriching the data Looking for sampling bias Determining data structure Building the PIE Surveying the data M...

Ngày tải lên: 24/10/2013, 19:15

... original information This additional information actually forms another data stream and enriches the original data Enrichment is the process of adding external data to the data set Note that data enhancement ... original data set The data preparation software creates this variable and captures information about the missing value patterns For each pattern of missing values in...

Ngày tải lên: 29/10/2013, 02:15

... numerating the alphas, but also for conducting the data survey and for addressing various problems and issues in data mining Becoming comfortable with the concept of data existing in state space ... will find the best numerical representation, given the form in which the alpha is delivered for preparation, and the information in the data set However, insights and understanding...

Ngày tải lên: 29/10/2013, 02:15

... README files ■ Oracle Database 10g Installation Guide for your platform ■ Oracle Data Mining Concepts, 10g Release (10.1) ■ Oracle Data Mining Application Developer’s Guide, 10g Release (10.1) ... the end of a line of input Overview Oracle Data Mining (ODM) embeds data mining within the Oracle database The data never leaves the database — the data, data...

Ngày tải lên: 04/11/2013, 12:15

... executed 1.2 Oracle9i Data Mining Components Oracle9i Data Mining has two main components: s Oracle9i Data Mining API s Data Mining Server (DMS) 1.2.1 Oracle9i Data Mining API The Oracle9i Data Mining ... these Web sites xii Basic ODM Concepts Oracle9i Data Mining (ODM) embeds data mining within the Oracle9i database The data never leaves the...

Ngày tải lên: 06/11/2013, 01:15