... Functional Model and the Data Language Daplex,’’ ACM-TODS, March, 1981 Smith, J and Smith, D., ‘‘Database Abstractions: Aggregation and Generalization,’’ ACM TODS, June 1977 Sordi, J., ‘‘IBM Database ... paper has suggested that data base procedures are a natural way to model complex objects and to allow data base oriented algorithms and precompiled queries in the data base Moreover, they appear ... typical relational data base system where the following two relations appear RELATION (relation-name, owner, ) ATTRIBUTE (relation-name, attribute-name, position, data- type, ) Whenever a relation...
Ngày tải lên: 28/04/2014, 13:31
... forward and can be easily understood The main entities identified are rawdata, ruledata, testdata, experimentdata Raw data contains all information about the data and attributes of the dataset ... performing data mining tasks and making predictive analysis, but this analysis is made in a single data mining task In reality, many data mining tasks are performed on a single data set, when there are ... use many datasets, and we might perform many experiments on the same dataset It is necessary to manage the datasets accordingly with respect to the raw data, learned data, test data etc Management...
Ngày tải lên: 30/10/2014, 20:01
Tài liệu Mining Database Structure; Or, How to Build a Data Quality Browser docx
... )Ô@e5H$ÂƯ5F@$5@XUƯYÔFd)bFE5jkƯE$@e& Actual q-gram vector distance 0 0.2 0.4 0.6 0.8 1.2 Estimated vs actual q-gram vector distance, 150 sketch samples 5.5.1 Using Multiset Resemblance Actual q-gram vector distance 0 0.2 ... bC$XX5Fp5b$#rCFbFắỳắ(y`Ôắ(ể Actual resemblance 0.2 0.4 0.6 0.8 Q-gram resemblance 0.2 0.4 0.6 0.8 0.2 0.2 Q-gram vector distance Estimated resemblance 0.4 0.6 0.8 0.4 0.6 0.8 1.2 1.4 Estimated vs Actual Q-gram Resemblance, ... Resemblance Actual q-gram vector distance 0 0.2 0.4 0.6 0.8 5.5 Qualitative Experiments 1.2 Estimated vs actual q-gram vector distance, 50 sketch samples ộ ị ỉố #$rỗ ú õ ó ị ổ ọ ĩ ễ í ó õễ í ị ỉ ỉ ò ĩ...
Ngày tải lên: 19/02/2014, 12:20
Tài liệu Báo cáo khoa học: "Contrastive accent in a data-to-speech system" doc
... contrast; it is only necessary to compare the data structures that are expressed by the generated sentences The fact that the input data structures of the system are organized in such a way that ... Future I have sketched a practical approach to the assignment of contrastive accent in data- to-speech systems, which does not need a universal definition of alternative or parallel items Because the ... identical data types express semantically parallel information allows us to make use of the world (or domain) knowledge incorporated in the design of these data structures, without having to separately...
Ngày tải lên: 22/02/2014, 03:20
Lore: A Database Management System for Semistructured Data ppt
... no path expressions that not exist in the database In typical situations, the DataGuide is signi cantly smaller than the original database Figure shows a DataGuide for the sample OEM database ... unique path expressions As an example, Figure 10 is a screen snapshot of the Java presentation of a DataGuide This DataGuide summarizes an existing database for Stanford's Database Group, similar ... that if the database contains cycles, then a general path expression may match an in nite number of paths in the data When trying to match a general path expression against the database, we match...
Ngày tải lên: 23/03/2014, 12:20
Báo cáo sinh học: " Novel data storage for H.264 motion compensation: system architecture and hardware implementation" pdf
... no bank optimization Figure 6: Vectorized data storage with bank optimization Figure 7: Data mapping and read commands needed for any MC data retrieval: (a) Image plane pixel map and the minimum ... 1: Integer and fractional samples’ positions for quarter sample luma interpolation Figure 2: Linear data storage, no bank optimization Figure 3: Linear data storage with bank optimization 28 Figure ... way, half-pel positions labeled aa, bb, cc, dd, ee, ff, gg, hh are calculated Half samples labeled as j are calculated by applying the 6-tap filter to the closest previously calculated half sample...
Ngày tải lên: 18/06/2014, 22:20
DATA MINING IN BANKING AND FINANCE: A NOTE FOR BANKERS pdf
... query languages; because human analysis breaks down with volume and dimensionality Traditional statistical methods not have the capacity and scale to analyse these data, and hence modern data mining ... management as well Foreign exchange Option Equities Custom Data Portfolio Data Company Data Global Data Warehouse & Data Marts Using Data Mining- Techniques for Credit Risk Market Risk Trading Portfolio ... credit and market risk present the central challenge, one can observe a major change in the area of how to measure and deal with them, based on the advent of advanced database and data mining...
Ngày tải lên: 20/06/2014, 14:20
Báo cáo toán học: " Novel data storage for H.264 motion compensation: system architecture and hardware implementation" pot
... on six adjacent integer samples as shown in Equation In a similar way, half-pel positions labeled aa, bb, cc, dd, ee, ff, gg, hh are calculated Half samples labeled as j are calculated by applying ... precharged and opened This precharge can happen in advance if Problem definition Many application and video providers migrate toward H.264 for making use of the high quality and lower datarate that ... reorganization, and the associated address mapping and read patterns The memory address generation is also presented in this section In Section 6, the system s architecture and hardware implementations...
Ngày tải lên: 20/06/2014, 21:20
Báo cáo hóa học: "Research Article A Modified Run-Length Coding towards the Realization of a RRO-NRDPWT-Based ECG Data Compression System" pdf
... propagation resistance and a uniform distribution of subband error The two mechanisms facilitate the significant normalization of subband data and a quantization scheme design with linear distortion ... investigated Each signal contains about a 15 minutes length of sampled data The measurement results are depicted in Figure Figure reveals that an approximately linear relationship between PRD and ... nmax i is defined as WL(nmaxi ) = Each signal contains about a 10-min length of sampled data Each segment involves 1024 samples of ECG data The experimental result is shown in Table where each...
Ngày tải lên: 21/06/2014, 05:20
data mining a heuristic approach
... functional specification), specifying the business processes that the system is ■ Chapter What Is Data Modeling? Report Report Program Program data data DATABASE data Program data data Program Figure ... Is Data Modeling? 1.5.3 Data Quality The data held in a database is usually a valuable business asset built up over a long period Inaccurate data (poor data quality) reduces the value of the asset ... common for the same data to appear in more than one database and for problems to arise in drawing together data from multiple databases How many other databases hold similar data about our customers...
Ngày tải lên: 03/07/2014, 16:06
Báo cáo khoa học: "Analysis and simulation of the architecture of a growing root system: application to a comparative study of several tree seedlings" ppsx
... oaks and several acacias, which show marked differences in shoot growth and ramification Materials and Methods Acorns of oaks (Quercus petraea Liebl., Q rubra du Roi) and seeds of acacias (Acacia ... Statistical studies of these ture are data allow the determination of elongation laws and branching patterns They may then be integrated into a deterministic three-dimensional model (Pages and ... entire duration We have recently developed a new method which allows a detailed analysis of growing root system with all its dynamic aspects (Belgrand et al., 1987) It is also a a a root is defined...
Ngày tải lên: 09/08/2014, 02:21
Báo cáo khoa học: "A new data processing system for root growth and ramification analysis: description of methods" pot
... growth and ramification parameters Table I shows the final data structure of the simplified example from Fig Discussion This new data ;acquisition system allows a quantitative analysis of root architecture ... numerical parameters from a simulation of root architecture for a mo old oak seedling = = In order to facilitate the root characteristics, a computation of final data storage structure is created ... branch point and of final point of virtual segments; and 5) the rank of branch point a Final data structure: ments resorting root seg- Growth and branching pattern analysis Statistical processing...
Ngày tải lên: 09/08/2014, 02:21
báo cáo khoa học: "Hypersensitivity reactions to anticancer agents: Data mining of the public version of the FDA adverse event reporting system, AERS" ppsx
... unknown patterns and automatically detect important signals, i.e., drug-associated adverse events, from such a large database Recently developed data mining tools for pharmacovigilance have been ... detected for paclitaxel, docetaxel and 5-fluorouracil (Table 4) Discussion The AERS database covers several million case reports on adverse events Pharmacovigilance analysis aims to search for previously ... was only about 50 The statistical data on other agents, paclitaxel, docetaxel, doxorubicin, 5-fluorouracil, and cyclophospamide, are summarized in Tables 2, and As shown in Table 2, the signals...
Ngày tải lên: 10/08/2014, 10:21
báo cáo khoa học: " Development of a novel data mining tool to find cis-elements in rice gene promoter regions" pdf
... TGACAGGT CCAC [AC ]A [ACGT] [AC] [ACGT] [CT] [AC] GG [ACGT]CCCAC GTGG [ACGT]CCC CAACA [ACGT]*CACCTG A [TC]G [AT ]A [CT]CT AATATATTT TGTCTC TGACGTGG CCA [ACGT]TG CACCC CC [AT]{6}GG AATAAA [CT]AAA ... Kawai J, Nakamura M, Hirozane-Kishikawa T, Kanagawa S, Arakawa T, Takahashi-Iida J, Murata M, Ninomiya N, Sasaki D, Fukuda S, Tagami M, Yamagata H, Kurita K, Kamiya K, Yamamoto M, Kikuta A, Bito ... 6.231 PRHA BS in PAL1*3 PRHA BS in PAL1 PRHA BS in PAL1 PRHA BS in PAL1 - ACACAC ATACACA ATACACAC TACACAC CATGTCTC GTGTCTC TGTCTCCG TGTCTCTG *1 The number of TU possessing the designated motif...
Ngày tải lên: 12/08/2014, 05:20
Tiểu luận môn CÔNG NGHỆ TRI THỨC VÀ ỨNG DỤNG Khai mỏ dữ liệu trong bảo mật hệ thống Data mining in system security
... [3] Anoop Singhal, Data warehousing and Data mining techniques for cyber security, Nhà xuất Springer, 2007 [4] S.Prabhu, Data mining and Warehousing, Nhà xuất New Age International Limited, 2007 ... trích lọc liệu (knowlegde extraction), phân tích liệu hay mẫu (data/ pattern analysis), khảo cổ liệu (data archaeology), nạo vét liệu (data dredging) Khai mỏ liệu liên quan đến xác suất thống kê, ... thuộc tính Ai 6: a[ Ai]:= cha a[ Ai] Gi; 7: while cảnh báo a giống nhau, a exist // gộp cảnh báo giống 8: Set a[ count] := a[ count] + a [count] x a a’ T ; 9: } 10: Đầu cảnh báo tạo a ∈ T với a[ count]...
Ngày tải lên: 10/04/2015, 15:20
A large scale microblogging data management system
... propose ART (AQUA, R-Store and TI), a large scale microblogging data management system that is able to handle various user queries (such as updates and real-time search) and the data analysis ... key/value store, R-Store, for the OLTP and real-time aggregation query processing A real-time data cube is maintained as the historical data, and the newly updated data are merged with the data ... thesis are: • To design a full-functional microblogging data management system that supports OLTP, offline data anlytics, real-time data analytics and realtime search • To improve the performance...
Ngày tải lên: 09/09/2015, 11:16
Development of a high frequency ambient noise data acquisition system
... the acquisitions With this feature, we are able to perform data acquisition for durations that are as long as the capacity of data storage harddisk could support 17 Figure 9: Data acquisition card, ... conduct my appreciation to Dr Venugopalan Pallayil and Mr Mohanan Panayamadam for the administrative and field trip support, Mr Mandar Chitre and Dr Matthias Hoffmann-Kuhnt for proof reading the ... shallow water is crucial Existing highbandwidth acoustic data acquisition systems are large and complex This project has developed a novel stand-alone, portable, and compact cylindrical package...
Ngày tải lên: 04/10/2015, 15:46
Effectiveness of the global banking system in 2010 a data envolopment analysis approach
... Denmark Mauritius Argentina Switzerland United States Chile Guatemala Singapore Macedonia, FYR South Africa New Zealand Australia Bulgaria Vietnam Sweden Korea, Rep El Salvador Botswana Saudi Arabia ... India Dominican Republic Croatia Panama Czech Republic Lithuania Estonia Venezuela, RB Poland Indonesia Jordan Albania Brazil Slovak Republic Uganda Bangladesh Kuwait Turkey Mozambique Kazakhstan ... Countries’ Data Country Albania Angola Argentina Armenia Australia Bangladesh Bolivia Botswana Brazil Bulgaria Canada Chile Colombia Costa Rica Croatia Czech Republic Denmark y1 0.77 0.24 0.18 0.20...
Ngày tải lên: 27/08/2016, 13:55