Python Data Science Essentials
Python Data Science Essentials
... topics: • How to set up a Python Data Science Toolbox • Using IPython • An overview of the data that we are going to study in this book Introducing data science and Python Data science is a relatively ... Introducing data science and Python Installing Python Python or Python 3? Step-by-step installation A glance at the essential Python packages 3 NumPy SciPy6 pandas Scikit-learn IPython7 Matplotlib ... science process Data loading and preprocessing with pandas Fast and easy data loading Dealing with problematic data Dealing with big datasets Accessing other data formats Data preprocessing Data...
- 258
- 1,388
- 0
agile data science
... www.it-ebooks.info Agile Data Science Russell Jurney www.it-ebooks.info Agile Data Science by Russell Jurney Copyright © 2014 Data Syndrome LLC All rights reserved Printed ... Agile Big Data Big Words Defined Agile Big Data Teams Recognizing the Opportunity and Problem Adapting to Change Agile Big Data Process Code Review and Pair Programming Agile Environments: ... practice of applying Agile Big Data analytics in a way that advances the field Who This Book Is For Agile Data Science is a course to help big data beginners and budding data scientists to become...
- 177
- 362
- 1
Data Modeling Essentials 2005 phần 1 ppsx
... Methods 23 1. 10 Who Should Be Involved in Data Modeling? 1. 11 Is Data Modeling Still Relevant? 1. 11. 1 1. 11. 2 1. 11. 3 1. 11. 4 1. 11. 5 1. 11. 6 1. 11. 7 23 24 Costs and Benefits of Data Modeling 25 Data Modeling ... Basic Column Definition 11 .4 .1 11. 4.2 11 .4.3 11 .4.4 11 .4.5 11 .4.6 11 .4.7 11 .4.8 11 .4.9 11 .5 Primary Key Specification 11 .6 Foreign Key Specification 11 .6 .1 11. 6.2 11 .6.3 11 .6.4 334 Attribute Implementation: ... 309 10 .18 The Assertions Approach 10 .18 .1 10 .18 .2 309 Naming Conventions 310 Rules for Generating Assertions 311 10 .19 Summary 319 Chapter 11 Logical Database Design 3 21 11. 1 Introduction 11 .2...
- 56
- 294
- 0
Data Modeling Essentials 2005 phần 2 potx
... 0 126 7 70964 22 617 50607 Clark Smith Walsh Black 05 12 05 05 Auditing Legal Auditing Auditing HO MS HO HO Qualification Table Employee Number Qualification Year 0 126 7 0 126 7 0 126 7 70964 22 617 22 617 ... Auditing Legal HO MS Qualification Table Employee Number Qualification Year 0 126 7 0 126 7 0 126 7 70964 22 617 22 617 Figure 2. 4 Qualification Description Bachelor of Arts Master of Arts Doctor of Philosophy ... Number of Doses 1, Drug Short Name 2, Drug Name 2, Manufacturer 2, Size of Dose 2, Unit of Measure 2, Method of Administration 2, Dose Cost 2, Number of Doses 2, Drug Short Name 3, Drug Name 3,...
- 56
- 336
- 0
Data Modeling Essentials 2005 phần 3 ppsx
... classify Operation be classified by Variation (d) Figure 3. 33 Alternative models for operations and operation types 3. 9 Summary ■ 109 (Figure 3. 33( d)) This diagram looks the same as the original, ... Figure 3. 33( b) Or we could allow operation types to be either basic or hybrid, as in the original model, but record the component operations of hybrid operations, resulting in Figure 3. 33( c) Another ... model chains as in Figure 3. 32(c) 3. 8 Creativity and E-R Modeling The element of choice is far more apparent in E-R modeling than in normalization, as we would expect In E-R modeling we are defining...
- 56
- 209
- 0
Data Modeling Essentials 2005 phần 4 ppsx
... float datatype can be used The decimal Datatype Number accommodated integer Figure 5 .4 Length (var)char 36 1,296 46 ,656 1,679,616 60 ,46 6,176 2,176,782,336 78,3 64, 1 64, 096 2.82×1012 127 32,767 2, 147 ,48 3, 647 ... (user-defined datatypes), you should assign to each column the appropriate DBMS datatype (as indicated in Sections 5 .4. 4.1 thru 5 .4. 4 .4) If, however, you are using an SQL99-compliant DBMS that supports UDTs, ... failure of all required data to get into the database) Data- interpretation errors (when users misinterpret data) Data- processing errors (when developers misinterpret data processing requirements)...
- 56
- 341
- 0
Data Modeling Essentials 2005 phần 5 pot
... Data Model Logical Data Model Review Logical Data Model Develop Information Requirements Business Specialist Database Designer Design Physical Data Model Physical Data Model Review Physical Data ... Organizing the Data Modeling Task database schemas These tasks can be better supported by automated tools But in preparing for a data modeling project, or setting up an ongoing data modeling function, ... include how well it supports data modeling The quality of data modeling support differs from tool to tool: the most common limitations are: ■ ■ ■ Use of a particular data modeling language The most...
- 56
- 279
- 0
Data Modeling Essentials 2005 phần 6 pdf
... Fred Anne Mary Sue Jane 6/ 2/1953 3/8/1982 7/5/1 965 Anne Fred Anne Mary Sue Jane Mary Sue Jane Anne Fred Anne 6/ 2/1953 3/8/1982 7/5/1 965 6/ 2/1953 3/8/1982 7/5/1 965 Figure 10. 16 Symmetry leading to ... price on invoice.”) Even if you have adopted a data- driven approach, in which data modeling precedes process modeling, you should plan to verify the data model against the process model when it ... contribution Member Account (b) Data Flow Diagram Figure 9.1 Data flow diagrams used to supplement data models: “Traditional” model 9.7 Object Class Hierarchies ■ 263 Contribution Type be subject...
- 56
- 313
- 0
Data Modeling Essentials 2005 phần 7 potx
... logical data model should not specify redundant data, derivable attributes in the conceptual data model should not become columns in the logical data model However, the designer of the physical data ... that the data is to be held in some medium other than the relational database: nondatabase files, XML streams, and so on 11.3.3 Classification Entity Classes As discussed in Section 7. 2.2.1, ... Name> can have the same combination of , , and .” 318 ■ Chapter 10 Conceptual Data Modeling (e.g., “No two Payment Rejections can have the same...
- 56
- 303
- 0
Data Modeling Essentials 2005 phần 8 pps
... security control data Data capture control, logging, and audit data Data distribution control, logging, and audit data Translation tables Other migration/interface support data Metadata 12.7 Views ... data block nonleaf block leaf block data block Figure 12.4 data block leaf block data block data block leaf block data block data block data block Balanced tree index structure 12.4.1.4 Balanced ... “varchar” datatype Note that rows can get out of sequence between reorganizations 3 68 ■ Chapter 12 Physical Database Design root block nonleaf block leaf block data block nonleaf block leaf block data...
- 56
- 206
- 0
Data Modeling Essentials 2005 phần 9 ppsx
... 12/25 /93 12/25 /93 12/21 /93 12/23 /93 12/25 /93 12/25 /93 12/25 /93 Figure 14.12 12/25 /93 National Closure Date Reason 12/25 /93 Christmas Post office closuresnormalized after subtyping 14.5 .9 Enforcement ... Maintenance Local Holiday 12/25 /93 12/25 /93 Christmas Christmas 12/25 /93 12/25 /93 12/25 /93 12/25 /93 Christmas Christmas Christmas Christmas Figure 14.11 12/21 /93 12/23 /93 Subtyping post office closure ... of History, 196 8 15.1 The Problem Few areas of data modeling are the subject of as much confusion as the handling of time-related and time-dependent data Perhaps we are modeling data for an insurance...
- 56
- 195
- 0
Data Modeling Essentials 2005 phần 10 ppt
... Chapter 16 Modeling for Data Warehouses and Data Marts data to suit the multidimensional database products that underpin many data marts 16.2 Characteristics of Data Warehouses and Data Marts ... acceptable for the data mart but would not be so for an operational database or data warehouse 16.5 Modeling for the Data Warehouse Many successful data warehouses have been designed by data modelers ... starting points! 488 ■ Chapter 16 Modeling for Data Warehouses and Data Marts 16.6 Modeling for the Data Mart 16.6.1 The Basic Challenge In organizing data in a data mart, the basic challenge is...
- 56
- 336
- 0
Tài liệu Cisco Design Essentials: Cisco IP Telephony- Enterprise Voice Over Data Design Test pdf
... is a mechanism for reducing bandwidth requirements when transporting: a Voice over IP b Voice over Frame Relay c Voice over ATM d A, B, and C e A and B f B and C g A and C 6) Every minute of ... Real-time Transport Protocol (RTP) is an industry standard for transporting: a Voice over IP b Voice over Frame Relay c Voice over ATM d A, B, and C e A and B f B and C g A and C 38) The following issues ... 32) Which of the following statements are true about Voice over Frame Relay services? a Primary payload types may include voice, fax, or data b Signaled payload types may include dialed digits,...
- 12
- 275
- 0
Từ khóa: chapter 1 data science and data toolsdata science is flawed but usefulchapter 15 the dark side of data sciencedata structures and algorithms in pythonintroduction to computer science using pythonintroduction to computer science and programming using python mitmit introduction to computer science and programming pythonintroduction to computer science using python pdf downloadintroduction to computer science with pythonintroduction to computer science with python pdfan introduction to computer science using python 3 downloadintroduction to computer science using python reviewintroduction to computer science using python 3introduction to computer science using python a computational problemsolving focusintroduction to computer science using python pdfchuyên đề điện xoay chiều theo dạngNghiên cứu sự hình thành lớp bảo vệ và khả năng chống ăn mòn của thép bền thời tiết trong điều kiện khí hậu nhiệt đới việt namNghiên cứu vật liệu biến hóa (metamaterials) hấp thụ sóng điện tử ở vùng tần số THzBiện pháp quản lý hoạt động dạy hát xoan trong trường trung học cơ sở huyện lâm thao, phú thọGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitTrả hồ sơ điều tra bổ sung đối với các tội xâm phạm sở hữu có tính chất chiếm đoạt theo pháp luật Tố tụng hình sự Việt Nam từ thực tiễn thành phố Hồ Chí Minh (Luận văn thạc sĩ)Nghiên cứu tổng hợp các oxit hỗn hợp kích thƣớc nanomet ce 0 75 zr0 25o2 , ce 0 5 zr0 5o2 và khảo sát hoạt tính quang xúc tác của chúngChuong 2 nhận dạng rui roTổ chức và hoạt động của Phòng Tư pháp từ thực tiễn tỉnh Phú Thọ (Luận văn thạc sĩ)Kiểm sát việc giải quyết tố giác, tin báo về tội phạm và kiến nghị khởi tố theo pháp luật tố tụng hình sự Việt Nam từ thực tiễn tỉnh Bình Định (Luận văn thạc sĩ)Tăng trưởng tín dụng hộ sản xuất nông nghiệp tại Ngân hàng Nông nghiệp và Phát triển nông thôn Việt Nam chi nhánh tỉnh Bắc Giang (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtNguyên tắc phân hóa trách nhiệm hình sự đối với người dưới 18 tuổi phạm tội trong pháp luật hình sự Việt Nam (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtTÁI CHẾ NHỰA VÀ QUẢN LÝ CHẤT THẢI Ở HOA KỲ