'Raw data values' diaporamas de présentation

Data Preprocessing

Data Preprocessing. Why preprocess the data? Data cleaning Data integration and transformation Data reduction Discretization and concept hierarchy generation Summary. Why Data Preprocessing?. Data in the real world is dirty

643 views • 63 slides

HOW TO WRITE AN ACADEMIC PAPER

HOW TO WRITE AN ACADEMIC PAPER. Choose a Topic. That interests you and challenges you Focus on limited aspect Select a subject that you can manage Check data availabilities (if empirical). Find Information. Check out the literature Read and evaluate

384 views • 19 slides

Time Series

Time Series . Smoothing techniques. Components of a time series. Components of a time series Seasonal effect Long term trend Cyclical effect Irregularity , random variation or random error. Seasonal effect. Seasonal effect. Seasonal variation

437 views • 17 slides

Data Preprocessing

170 views • 16 slides

Find Mean, Median, Modal Class from Grouped Data

Find Mean, Median, Modal Class from Grouped Data. Mean from a Frequency Table. Calculating the Mean : If there are large amounts of data, it is easier if it is displayed in a frequency table . Example 1.

5.21k views • 14 slides

Statistical Measures 1

Statistical Measures 1. Measure of Central Tendency. Intro. Grouped Data.

287 views • 10 slides

Watershed Assessment

176 views • 10 slides