... picture +ã Shape/direction of data/ evidence +ã Intuition judgementOrder of frequency:Comfort 42%Speed 35%Price 29%Image 28%Margin of errorNFrequency of issue ARobustnessassessed ... sureyour data are internally consistent with other data in the dataset. Forexample, if in a survey for an airline we đnd that over three-quarters of customers were delighted with the quality of the ... aspects of the way we make sense of marketing information. So, at the risk of high vulgarisation and trivialisa-tion of a vast topic, below we have outlined seven key insights about thenature of...
... quan trong trong qui trình KDDKnowledge12345 Data cleaning Data warehouseTask relevant data Data mining Pattern Evaluationselection Data integration nh ngha Kho D Liu (tt) ãTheo Pandora, ... ngã D liu tổng hợp 65/12/2009 Bin thi gian9ã Data ãTimeã01/97ã02/97ã03/97ã Data for Januaryã Data for Februaryã Data for Marchã Data ãWarehouse5/12/2009 n nhãL lu tr vt lý ... ra quyết định có tính lãnh đạo của tổ chức, với các dữ liệu có mức độ phức tạp và quan trọng Data mining: khám phá, tìm kiếm dữ liệu cho các kiến thức mới không dự biết trước Mt s thut toỏn...
... trộn dữ liệu (merge data) từ nhiều nguồn khác nhau vào một kho dữ liệuBiến đổi dữ liệu (data transformation): chuẩn hoá dữ liệu (data normalization)Thu giảm dữ liệu (data reduction): thu ... liệuLàm sạch dữ liệu (data cleaning/cleansing): loại bỏ nhiễu (remove noise), hiệu chỉnh những phần dữ liệu không nhất quán (correct data inconsistencies)Tích hợp dữ liệu (data integration): ... tiền xử lý dữ liệuQuá trình xử lý dữ liệu thô/gốc (raw/original data) nhằm cải thiện chất lượng dữ liệu (quality of the data) và do đó, cải thiện chất lượng của kết quả khai phá.Dữ liệu...
... Thống Kê, ĐH Kinh Tế TPHCM 30 Hình 5.9: Bảng Model Model name: Tên mô hình Use partition data: phân vùng dữ liệu Mode. phương pháp được sử dụng để xây dựng mô hình. General model: mô ... các quy tắc quá ít (hoặc không có quy tắc nào cả), cố gắng giảm cài đặt này. Minimum number of antecedent . Bạn có thể chỉ định số lượng tối đa của các tiền đề cho quy tắc nào. Đây là một ... đào tạo. Nếu ruleset của bạn là việc quá dài để đào tạo, thử giảm cài đặt này. Minimum number of rule . Tùy chọn này xác định số lượng các quy tắc giữ lại trong ruleset này. Quy tắc được giữ...
... orSales = 612 + 9.6 x Radio or (lots of others)Why the confusion?The evil Multicollinearity!!(correlated X’s) DataMining - What is it?ãLarge datasetsãFast methodsãNot significance ... predict well with just TV, just radio, or both! SAS code: proc reg data= next; model sales = TV radio; Analysis of Variance Sum of MeanSource DF Squares Square F Value Pr > FModel 2 32660996 ... BPs in data, 49 ways to split ãSunday football highlights always look good!ãIf he shoots enough times, even a 95% free throw shooter will miss.ãTried 49 splits, each has 5% chance of declaring...
... Why data mining? What is data mining? Data Mining: On what kind of data? Data mining functionalityAre all the patterns interesting?Major issues in data mining 5What Is Data Mining? Data ... E, F 13 Data Mining: A KDD Process Data mining: the core of knowledge discovery process. Data Cleaning Data IntegrationDatabases Data WarehouseTask-relevant Data Selection Data Mining Pattern ... 16 Data Mining Functionalities 15 Data Mining: On What Kind of Data? Relational databases Data warehousesTransactional databasesAdvanced DB and information...
... training data is not a good indicator of performance on future data The new data will probably not be exactly the same as the training data! Overfitting – fitting the training data too ... the data Not flexible enough 8â 2006 KDnuggetsRelated Fields StatisticsMachineLearningDatabasesVisualization Data Mining and Knowledge Discovery 34â 2006 KDnuggetsEvaluation of ... and use of data. 32â 2006 KDnuggetsEvaluating which method works the best for classificationNo model is uniformly the bestDimensions for Comparisonspeed of trainingspeed of model...
... VENTURE1. Name of the Joint Venture:2. Name of the Partner of the Joint Venture:3. Ownership (respective shares of the partner):4. Date of establishment:5. Type of industry:6. Total number of employeesã ... establishment:5. Type of industry:6. Total number of employeesã Number of Vietnamese:ã Number of Foreign:ã Ratio of Vietnamese to total number of people in management positions:7. Turnover:ã Total revenue ... MillionTotal # of projects : 301 - 90 -1. Managerial resources of the partner 0 1 2 3 42. Skilled manpower resources 0 1 2 3 43. Relative low unit cost of production 0 1 2 3 44. Accessibility of manufacturing...
... the detail of algorithms, I’d like to give you a brief view of hashing. In term ofdata structure and algorithm, hash-method often used an array structure to store database. If the database is ... 3. Find all of the large itemsets of the database. Table 1: Transaction database TID Items 100 ABCD 200 ABCDF 300 BCDE 400 ABCDF 500 ABEF Hash-Based Approach to Data Mining ... in the process of finding association rules. It works with a large amount ofdata so the problem of optimizing the process and reducing data sxanning will influents the effect of this step...
... handling data receives, we can say that a new eld is being born, called data engineering. One of the essential notions ofdata engineering is metadata. It is data about data , i.e., a data description ... PortugalTable of Contents This chapter reviews current policies of tuberculosis control programs for the diagnosis of tuberculosis. A datamining project that uses WHO’s Direct Observation of Therapy data ... AspectsChapter I Data, Information and Knowledge 1 Jana Zvárová, Institute of Computer Science of the Academy of Sciences of the Czech Republic v.v.i., Czech Republic; Center of Biomedical Informatics,...
... (eg.issuing of permits and licences), science and research,assessment and monitoring of natural systems and riskmonitoring.As part of a departmental initiative, NRM&E’s Townsvilleoffice were ... forDepartment of Natural Resources, Mines and Energy.The Department of Natural Resources, Mines and Energy(NRM&E) is responsible for ensuring the sustainablemanagement and use of Queensland’s ... resources.With over 80 offices and service centres throughoutQueensland, the Department collects and storesinformation about the state’s natural resources.Combined with data about natural resourcemanagement...
... family of criteria).Preliminary Consumer Behavorial Analysis(Consistent family of criteria)Development of questionnaireSurveyMUSA Data Mining Search EnginesRule Induction Engine Data Mining ... objectives of the paper are:ã to compare the results of the two methods,ã to evaluate the homogeneity of the set of customers,ã to overcome the problem of no response (missing data) in the data ... implementation of the two methodologies may offer a solutionto the problem of missing data, in the initial data set.KEYWORDS: Rule-Induction Data Mining, Customer Satisfaction Measurement, MulticriteriaAnalysisINTRODUCTIONCustomer...