Num of transactions: 2662309
Num of items: 34

The dataset is converted from the dataset 'Crimes in Chicago' (https://www.kaggle.com/datasets/currie32/crimes-in-chicago), which records the crimes occurred in Chicago from 2001 to 2017.

Every transaction corresponds to a <month, area>. A transaction describes the crimes occurred in a specific area during a specific month. Utility is the count of crime, and the names of items are shown in the 'NAMES'.

For example, '1 2:4:2 2' means that the crime 'THEFT' occurs twice and the crime 'OTHER OFFENSE' occurs twice in the corresponding <month, area>

NAMES:
1: THEFT
2: OTHER OFFENSE
3: OFFENSE INVOLVING CHILDREN
4: CRIM SEXUAL ASSAULT
5: MOTOR VEHICLE THEFT
6: SEX OFFENSE
7: DECEPTIVE PRACTICE
8: BATTERY
9: BURGLARY
10: WEAPONS VIOLATION
11: PUBLIC PEACE VIOLATION
12: NARCOTICS
13: GAMBLING
14: PROSTITUTION
15: LIQUOR LAW VIOLATION
16: INTERFERENCE WITH PUBLIC OFFICER
17: CRIMINAL DAMAGE
18: ASSAULT
19: STALKING
20: ARSON
21: CRIMINAL TRESPASS
22: HOMICIDE
23: ROBBERY
24: OBSCENITY
25: KIDNAPPING
26: INTIMIDATION
27: RITUALISM
28: DOMESTIC VIOLENCE
29: OTHER NARCOTIC VIOLATION
30: PUBLIC INDECENCY
31: NON-CRIMINAL
32: HUMAN TRAFFICKING
33: CONCEALED CARRY LICENSE VIOLATION
34: NON - CRIMINAL
35: NON-CRIMINAL (SUBJECT SPECIFIED)