Tag: Data mining

The development tools

Survival analysis of 4 patients with advanced lung cancer in R language

February 7, 2024

by Dr. Natasha Whittaker

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Clark, T., Bradburn, M., Love, S., & Altman, D. (2003). Survival analysis part I: Basic concepts and first analyses. 232-238. ISSN 0007-0920...

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The back-end

This article introduces you to the simple use of the ETL tool datax

February 7, 2024

by Lindsay Benson

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ETL is responsible for extracting data from distributed and heterogeneous data sources, such as relational data and plane data files, to the temporary intermediate layer...

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The development tools

Probability distributions are used in R: dnorm, pnorm, qnorm and rnorm

February 6, 2024

by Tammy Hood

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Here, I'll discuss which functions can be used to handle normal distributions: dnorm, pnorm, qnorm, and Rnorm. The probability density function (PDF) represents the probability...

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The development tools

Package or namespace load failed in dyn.load(file, DLLpath = DLLpath,…) :

February 6, 2024

by Rebecca Hunt

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I need to install the R package StochVol, which is only for version 3.6.0 of R. So, I installed R (version 3.6.0) and opened it...

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The code of life

How to calculate Customer Lifetime Value

February 6, 2024

by 楊佳慧

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Why use this measure to interfere with the user, and not another way. Why do you interfere with one group of users and not the...

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The development tools

The 9 most popular tools for Growth hackers

February 6, 2024

by 徐馨儀

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A Growth Hacker is a multi-disciplinary talent that requires skills in marketing, product engineering, data analysis, and more. This article details the nine tools a...

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The development tools

ETL batch scheduling tool TASKCTL core scheduling node installation

February 6, 2024

by Timothy Roberts-Hayes

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TASKCTL automation technology standard products using a typical B/S mode, the application layer for the client, the control layer for the server. At the same...

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The development tools

Six great open source data mining tools

February 6, 2024

by Patricia Meyer

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With the transition to an app-based world, data has grown exponentially. However, much of the data is unstructured, so it requires a program and method...

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The development tools

TASKCTL- Overview of job attributes

February 6, 2024

by Samantha Edwards

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In the module code, the vertical XML label is job or group node type. The horizontal XML label is job attribute. Job attribute classification Currently,...

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The back-end

User location clustering algorithm implementation

February 6, 2024

by Andrew Morris

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Hybrid algorithm based on DBSCAN and Kmeans

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The development tools

TASKCTL Specifies the difference between the main process, sub-process, timer, and module

February 6, 2024

by Janet Lord

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Relationship between main flow, sub-flow, timer, and module Main flow, sub-flow, timer, and module are expressed in the resource tree as follows: Control container: is...

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Artificial intelligence (ai)

Python association rules mining shadow users

February 6, 2024

by Kaitlyn Chandler-Monk

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In this article, we introduce the application of an algorithm in machine learning: Association rules analysis. The whole story starts with a campus card. I...

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The back-end

Geopandas calculates the area of each province in one line of code

February 6, 2024

by Bhamini Khalsa

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GeoPandas is a third-party module based on PANDAS with special support for geographic data. It inherits pandas.Series and pandas.Dataframe to implement GeoSeries and GeoDataFrame

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The development tools

Modeling stock Market Correlation based on Copula function in R Language: Simulating Random Walk

February 5, 2024

by Bhamini Khalsa

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When they were introduced, Copulas were generally considered interesting because they allowed modeling of edge distributions and dependent structures separately. Given some edge distribution functions...

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The development tools

TASKCTL- Job attributes inheritance, overload, default, etc

February 5, 2024

by Janice Walker

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A lightweight free enterprise ETL task batch processing tool based on B/S architecture, focus on the public number [TASKCTL] can obtain the official permanent authorization...

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Artificial intelligence (ai)

Tinto end tecdat | R language logistic regression and Naive Bayes decision tree, bayesian, random forest algorithm to predict a heart attack

February 5, 2024

by Elaine Hartley

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This dataset dates back to 1988 and consists of four databases. Cleveland, Hungary, Switzerland and Long Beach." The "target" field refers to whether the patient...

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Artificial intelligence (ai)

Rio side tecdat | Python matching Pairs Trading strategy quantitative statistical arbitrage Trading transaction analysis stock market

February 5, 2024

by Kiaan Ranganathan

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When it comes to making money in the stock market, there are an infinite number of different ways to make money. It seems that everywhere...

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Artificial intelligence (ai)

Quantitative trading: low frequency paired statistical arbitrage

February 5, 2024

by James Moore

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While the previous section looked at sample strategies written based on the characteristics of the Bitcoin market, this section looks at examples of cross-market statistical...

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Artificial intelligence (ai)

Dry goods | complex report format? Super detailed Excel fusion analysis practical steps to share with you

February 5, 2024

by 文淑惠

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Through Smartbi to complete the data import of multiple data sources, after Excel fusion analysis can start to make reports. In the face of complex...

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The back-end

【 Dry goods 】Kaggle data mining competition experience sharing

February 5, 2024

by Jivika Grewal

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Founded in 2010, Kaggle focuses on data science and machine learning competitions. It is the largest data science community and data competition platform in the...

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Artificial intelligence (ai)

Data Preprocessing

February 5, 2024

by Barry Hill

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This paper introduces the concepts of missing value processing, noisy data processing, data normalization, summary, sampling, discretization and principal component analysis. Poor data quality will...

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Artificial intelligence (ai)

Data preprocessing and feature selection

February 5, 2024

by Ivana Behl

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Combined with some relevant information on the Internet, we sorted out and output this article, which explains the importance of data and the status of...

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The back-end

A typical case for you to interpret TDSQL full – temporal database system

February 5, 2024

by Mark Martin

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Delta extraction, delta calculation, and so on are classic examples of T-TDSQL. The following takes incremental calculation as an example to analyze the typical application...

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reading

Data analysis and visualization based on campus CARD and WIFI usage records

February 4, 2024

by Michael Murphy

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Data used in this project include: one-card consumption data, campus wifi data and meteorological data of Minhang District of Shanghai. Specifically, it includes: merchant information:...

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Artificial intelligence (ai)

The ULB – Miner algorithm

February 4, 2024

by Asher Harris

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Hui-miner is the first utility-list based algorithm, and the first "one-phase" algorithm that mines on raw data sets...

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The back-end

Theory of e-commerce warehouse modeling

February 4, 2024

by Anvi Garg

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A data warehouse is a strategic collection of all types of data to support the decision-making process at all levels of the enterprise. This paper...

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Artificial intelligence (ai)

Adult dataset analysis and realization of four models

February 4, 2024

by 張心怡

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The Adult Dataset is a classic data mining project that extracts data from the 1994 U.S. Census database. It is also known as the "Census...

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The back-end

A miscellany of recommendation systems

February 4, 2024

by Jeffrey Warren

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Recommendation system is a very popular technology in recent years. No matter e-commerce software or news app, it is claimed that accurate recommendation system can...

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Artificial intelligence (ai)

StreamSets expression language | article 7 clock

February 3, 2024

by Ashley Johnson

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The Expression language of StreamSets is based on the expression syntax of JSP 2.0, so if you are familiar with JSP, this article should be...

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Artificial intelligence (ai)

A battle between two types of AI: What’s the difference?

February 3, 2024

by Akarsh Ahluwalia

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Editor's note: This article is based on "The Fourth Revolution," written by Luciano Floridi, a pioneer in the philosophy of information, professor of philosophy and...

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