Cloud
Donated on 8/2/1989
Little Documentation
Dataset Characteristics
Multivariate, Image
Subject Area
Climate and Environment
Associated Tasks
Other
Feature Type
Real
# Instances
1024
# Features
10
Dataset Information
Additional Information
The data sets we propose to analyse are constituted of 1024 vectors, each vector includes 10 parameters. You can think of it as a 1024*10 matrix. To produce these vectors, we proceed as follows: 1. we start with two 512*512 AVHRR images (1 in the visible, 1 in the IR) 2. each images is divided in super-pixels 16*16 and in each super-pixel we compute a set of parameters: (a) visible: mean, max, min, mean distribution, contrast, entropy, second angular momentum (b) IR: mean, max, min The set of 10 parameters we picked to form the vectors is a compromised between various constraints. Actually we are still working on the choice of parameters for the data vectors. The data set I send you has not been normalized. The normalization of the data set is required by our classification scheme but that may not be true for yours. To normalize the data we compute the mean and standard deviation for each parameter on the entire data set then for each parameter of each vector we compute: Norm. value = (un-norm value - mean)/SD where mean = mean value for this particular parameter over the data set SD = standard deviation .....
Has Missing Values?
No
Variables Table
Variable Name | Role | Type | Description | Units | Missing Values |
---|---|---|---|---|---|
visible-mean | Feature | Integer | no | ||
visible-max | Feature | Integer | no | ||
visible-min | Feature | Continuous | no | ||
mean-distribution | Feature | Continuous | no | ||
contrast | Feature | Continuous | no | ||
entropy | Feature | Continuous | no | ||
second-angular-momentum | Feature | Continuous | no | ||
ir-mean | Feature | Integer | no | ||
ir-max | Feature | Integer | no | ||
ir-min | Feature | Continuous | no |
0 to 10 of 10
Dataset Files
File | Size |
---|---|
cloud.data | 204.4 KB |
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pip install ucimlrepo
from ucimlrepo import fetch_ucirepo # fetch dataset cloud = fetch_ucirepo(id=155) # data (as pandas dataframes) X = cloud.data.features y = cloud.data.targets # metadata print(cloud.metadata) # variable information print(cloud.variables)
Collard, P. (1989). Cloud [Dataset]. UCI Machine Learning Repository. https://doi.org/10.24432/C5359Z.
Creators
Philippe Collard
DOI
License
This dataset is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) license.
This allows for the sharing and adaptation of the datasets for any purpose, provided that the appropriate credit is given.