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Classification (8)
Regression (1)
Clustering (2)
Other (4)

Attribute Type - Undo

Categorical (15)
Numerical (252)
Mixed (19)

Data Type

Multivariate (10)
Univariate (0)
Sequential (3)
Time-Series (0)
Text (1)
Domain-Theory (1)
Other (1)

Area

Life Sciences (4)
Physical Sciences (1)
CS / Engineering (2)
Social Sciences (2)
Business (0)
Game (2)
Other (4)

# Attributes

Less than 10 (5)
10 to 100 (7)
Greater than 100 (1)

# Instances - Undo

Less than 100 (5)
100 to 1000 (16)
Greater than 1000 (15)

Format Type

Matrix (11)
Non-Matrix (4)

15 Data Sets

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Name

Data Types

Default Task

Attribute Types

# Instances

# Attributes

Year
 

MSNBC.com Anonymous Web Data

Sequential 

 

Categorical 

989818 

 

 
 

Connectionist Bench (Nettalk Corpus)

Multivariate 

 

Categorical 

20008 

4 

 
 

Car Evaluation

Multivariate 

Classification 

Categorical 

1728 

6 

1997 
 

Chess (King-Rook vs. King-Pawn)

Multivariate 

Classification 

Categorical 

3196 

36 

1989 
 

Connect-4

Multivariate, Spatial 

Classification 

Categorical 

67557 

42 

1995 
 

Molecular Biology (Splice-junction Gene Sequences)

Sequential, Domain-Theory 

Classification 

Categorical 

3190 

61 

1992 
 

Mushroom

Multivariate 

Classification 

Categorical 

8124 

22 

1987 
 

HIV-1 protease cleavage

Multivariate 

Classification 

Categorical 

6590 

1 

2015 
 

Nursery

Multivariate 

Classification 

Categorical 

12960 

8 

1997 
 

Reuters-21578 Text Categorization Collection

Text 

Classification 

Categorical 

21578 

5 

1997 
 

US Census Data (1990)

Multivariate 

Clustering 

Categorical 

2458285 

68 

 
 

Plants

Multivariate 

Clustering 

Categorical 

22632 

70 

2008 
 

Anonymous Microsoft Web Data

 

Recommender-Systems 

Categorical 

37711 

294 

1998 
 

Entree Chicago Recommendation Data

Transactional, Sequential 

Recommender-Systems 

Categorical 

50672 

 

2000 
 

Solar Flare

Multivariate 

Regression 

Categorical 

1389 

10 

1989 

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