Data cleaning

Ebook "Survey methodology and missing data: Tools and techniques for practitioners" focuses on quantitative survey methodology, data collection and cleaning methods. Providing starting tools for using and analyzing a file once a survey has been conducted, it addresses fields as diverse as advanced weighting, editing, and imputation, which are not well-covered in corresponding survey books. Moreover, it presents numerous empirical examples from the author's extensive research experience, particularly real data sets from multinational surveys.

228p tracanhphuonghoa1007 22-04-2024 6 3   Download

Part 2 book "Fouling of heat exchangers" includes content: The design, installation, commissioning and operation of heat exchangers to minimise fouling; the use of additives to mitigate fouling; heat exchanger cleaning; fouling assessment and mitigation in some common industrial processes; obtaining data.

257p muasambanhan10 03-04-2024 3 0   Download

Ebook Professional penetration testing creating and operating a formal hacking lab: Part 2 includes contents: Chapter 9: information gathering, chapter 10: vulnerability identification, chapter 11: vulnerability verification, chapter 12: compromising a system and privilege escalation, chapter 13: maintaining access, chapter 14: covering your tracks, chapter 15: reporting results, chapter 16: archiving data, chapter 17: cleaning up your lab, chapter 18: planning for your next pentest.

288p longtimenosee05 31-03-2024 3 0   Download

Part 1 of ebook "Accounting information and equity valuation: Theory, evidence, and applications" provides readers with contents including: accounting measures of value generation, the residual income model; mapping accounting data to value via linear information dynamics, the early approach; capital following profitability, why the residual income dynamic is nonlinear; a basic model of equity value, incorporating growth and abandonment options; testing the properties of the ROM;...

117p mocthanhdao0210 20-11-2023 11 4   Download

Ebook "Statistics for big data for dummies" includes content: Introduction, what is big data and what do you do with it, characteristics of big data; using big data - the hot applications, understanding probabilities, understanding probabilities, preparing and cleaning data, checking assumptions,... and other contents.

412p haojiubujain07 20-09-2023 6 4   Download

Bài giảng Khai phá dữ liệu (Data mining): Data preprocessing, chương này trình bày những nội dung về: why preprocess the data; descriptive data summarization; data cleaning; data integration and transformation; data reduction; discretization and concept hierarchy generation;... Mời các bạn cùng tham khảo chi tiết nội dung bài giảng!

71p diepkhinhchau 18-09-2023 8 5   Download

The study aims to analyze the impact of financial capacity on the sustainable growth of enterprises doing business in the clean energy sector in Vietnam. The study used data collected from 30 companies doing business in the clean energy sector, corresponding to 250 observations in the 2010-2021 period.

10p viindra 06-09-2023 7 2   Download

Ebook "Python for data analysis: Data wrangling with Pandas, NumPy, and IPython" get complete instructions for manipulating, processing, cleaning, and crunching datasets in Python. Updated for Python 3.6, the second edition of this hands-on guide is packed with practical case studies that show you how to solve a broad set of data analysis problems effectively. You’ll learn the latest versions of pandas, NumPy, IPython, and Jupiter in the process.

541p hanlinhchi 29-08-2023 10 4   Download

Lecture Statistical package for social sciences (SPSS) - Chapter 2: Data cleaning. This lecture will cover the following: reasons; measures to prevent; methods of data cleaning; design a questionnaire clear;... Please refer to content of lecture!

4p chutieubang 06-12-2022 5 2   Download

This paper presents the results of a study of designing a beach cleaning machine, in order to provide the local factories with technical data for manufacturing beach cleaning machines. In the previous studies, we surveyed the rubbish on beaches of Danang City and studied the methods for separating and collecting beach rubbish; designed and manufactured some mechanisms for collecting rubbish on the sand and carried out necessary experiments on beaches.

4p vilexus 30-09-2022 11 3   Download

Lecture Data mining: Lesson 4. The main topics covered in this chapter include: data preprocessing; data cleaning; data integration and transformation; data reduction; discretization and concept hierarchy generation;... Please refer to the content of document.

49p tieuvulinhhoa 22-09-2022 10 4   Download

Lecture Data mining: Lesson 8. The main topics covered in this chapter include: classification and prediction; issues regarding classification and prediction; classification by decision tree induction; scalable decision tree induction; treatment effectiveness analysis;... Please refer to the content of document.

48p tieuvulinhhoa 22-09-2022 10 4   Download

Recently, latent representation models, such as Shrink Autoencoder (SAE), have been demonstrated as robust feature representations for one-class learning-based network anomaly detection. In these studies, benchmark network datasets that are processed in laboratory environments to make them completely clean are often employed for constructing and evaluating such models.

11p viirenerosenfeld 26-05-2022 14 3   Download

This review analyzes the stove functions, characteristics, or features that households value in their cook stove. From these data, we explore user preferences, which we catalog within the Technology Acceptance Model along seven dimensions that arose in the literature: technical design and stove operation, fuel characteristics, technical details or features, kitchen space, household food and taste demands, household schedules, and social and cultural aspects.

19p huangminghao_1902 27-02-2022 19 2   Download

The find a dominance of quantitative approaches that tend to use existing (and often limited) forms of survey data, and a relative absence of detailed qualitative research. As such, we argue there is an urgent need for transformative research and policy activities within Latin America and the Caribbean, in order to support access to clean, reliable, and affordable energy services for all.

13p huangminghao_1902 27-02-2022 17 2   Download

Marine debris assessment gives information about their quantity, type, and composition, which provides data to help with their management and control. The authors conducted two surveys at three beaches at Sam Son, Hai Tien, Hai Hoa) in Thanh Hoa province in March 2020 and July 2020, respectively, during an inactive and active tourism period. A total of 3,803 waste units were collected for assessment, of which plastic waste accounts for more than 98%.

12p vielonmusk 21-01-2022 27 0   Download

The study used interview schedules to gather data from 400 randomly selected respondents in the Cape Coast Metropolis. The study found that there were several energy sources available to households within the Cape Coast Metropolis.

9p lazzaro 30-12-2021 6 0   Download

In this work, we propose the usage of filtering algorithms for multiple instance classification that are able to reduce the impact of negative instances within the bags. In order to do so, we decompose the bags to form a standard classification problem that can be efficiently treated by a specialized noise filter.

13p guernsey 28-12-2021 6 0   Download

The carrageenan quality was done for a 60-day cultivation period, the carrageenan yield and gel strength showed little variation with the higher values (28.1 - 28.7 % and 855 - 935 g cm-2 , respectively) obtained from November 2014 to March 2015 and lower ones (25.1 - 26.7 % and 555 - 758 g cm-2 , respectively) from April to September 2015. The data on moisture content of alga (33.5 - 36.8 %), clean anhydrous algal/salt ratio (0.92 - 1.07), and carrageenan yield obtained in this study fulfilled those of standards for carrageenophytes.

9p spiritedaway36 25-11-2021 11 1   Download

=If sustainable development goals (SDGs) seven of affordable and clean energy will be achieved, access to clean energy such as solar energy needs dedicated attention. The study assessed respondents’ perception of solar energy and identified factors influencing their preference level in urban areas of Southwest Nigeria. Data were obtained from four hundred and eighty solar energy users and four hundred and eighty non-solar energy users leading to total of nine hundred and sixty respondents’ through a multi-stage sampling technique.

9p caygaocaolon11 18-04-2021 12 1   Download