Datasets:

ofwestern
/

Glass_Classification

RI float64 1.51 1.53	Na float64 10.7 17.4	Mg float64 0 4.49	Al float64 0.29 3.5	Si float64 69.8 75.4	K float64 0 6.21	Ca float64 5.43 16.2	Ba float64 0 3.15	Fe float64 0 0.51	Type int64 1 7
1.52101	13.64	4.49	1.1	71.78	0.06	8.75	0	0	1
1.51761	13.89	3.6	1.36	72.73	0.48	7.83	0	0	1
1.51618	13.53	3.55	1.54	72.99	0.39	7.78	0	0	1
1.51766	13.21	3.69	1.29	72.61	0.57	8.22	0	0	1
1.51742	13.27	3.62	1.24	73.08	0.55	8.07	0	0	1
1.51596	12.79	3.61	1.62	72.97	0.64	8.07	0	0.26	1
1.51743	13.3	3.6	1.14	73.09	0.58	8.17	0	0	1
1.51756	13.15	3.61	1.05	73.24	0.57	8.24	0	0	1
1.51918	14.04	3.58	1.37	72.08	0.56	8.3	0	0	1
1.51755	13	3.6	1.36	72.99	0.57	8.4	0	0.11	1
1.51571	12.72	3.46	1.56	73.2	0.67	8.09	0	0.24	1
1.51763	12.8	3.66	1.27	73.01	0.6	8.56	0	0	1
1.51589	12.88	3.43	1.4	73.28	0.69	8.05	0	0.24	1
1.51748	12.86	3.56	1.27	73.21	0.54	8.38	0	0.17	1
1.51763	12.61	3.59	1.31	73.29	0.58	8.5	0	0	1
1.51761	12.81	3.54	1.23	73.24	0.58	8.39	0	0	1
1.51784	12.68	3.67	1.16	73.11	0.61	8.7	0	0	1
1.52196	14.36	3.85	0.89	71.36	0.15	9.15	0	0	1
1.51911	13.9	3.73	1.18	72.12	0.06	8.89	0	0	1
1.51735	13.02	3.54	1.69	72.73	0.54	8.44	0	0.07	1
1.5175	12.82	3.55	1.49	72.75	0.54	8.52	0	0.19	1
1.51966	14.77	3.75	0.29	72.02	0.03	9	0	0	1
1.51736	12.78	3.62	1.29	72.79	0.59	8.7	0	0	1
1.51751	12.81	3.57	1.35	73.02	0.62	8.59	0	0	1
1.5172	13.38	3.5	1.15	72.85	0.5	8.43	0	0	1
1.51764	12.98	3.54	1.21	73	0.65	8.53	0	0	1
1.51793	13.21	3.48	1.41	72.64	0.59	8.43	0	0	1
1.51721	12.87	3.48	1.33	73.04	0.56	8.43	0	0	1
1.51768	12.56	3.52	1.43	73.15	0.57	8.54	0	0	1
1.51784	13.08	3.49	1.28	72.86	0.6	8.49	0	0	1
1.51768	12.65	3.56	1.3	73.08	0.61	8.69	0	0.14	1
1.51747	12.84	3.5	1.14	73.27	0.56	8.55	0	0	1
1.51775	12.85	3.48	1.23	72.97	0.61	8.56	0.09	0.22	1
1.51753	12.57	3.47	1.38	73.39	0.6	8.55	0	0.06	1
1.51783	12.69	3.54	1.34	72.95	0.57	8.75	0	0	1
1.51567	13.29	3.45	1.21	72.74	0.56	8.57	0	0	1
1.51909	13.89	3.53	1.32	71.81	0.51	8.78	0.11	0	1
1.51797	12.74	3.48	1.35	72.96	0.64	8.68	0	0	1
1.52213	14.21	3.82	0.47	71.77	0.11	9.57	0	0	1
1.52213	14.21	3.82	0.47	71.77	0.11	9.57	0	0	1
1.51793	12.79	3.5	1.12	73.03	0.64	8.77	0	0	1
1.51755	12.71	3.42	1.2	73.2	0.59	8.64	0	0	1
1.51779	13.21	3.39	1.33	72.76	0.59	8.59	0	0	1
1.5221	13.73	3.84	0.72	71.76	0.17	9.74	0	0	1
1.51786	12.73	3.43	1.19	72.95	0.62	8.76	0	0.3	1
1.519	13.49	3.48	1.35	71.95	0.55	9	0	0	1
1.51869	13.19	3.37	1.18	72.72	0.57	8.83	0	0.16	1
1.52667	13.99	3.7	0.71	71.57	0.02	9.82	0	0.1	1
1.52223	13.21	3.77	0.79	71.99	0.13	10.02	0	0	1
1.51898	13.58	3.35	1.23	72.08	0.59	8.91	0	0	1
1.5232	13.72	3.72	0.51	71.75	0.09	10.06	0	0.16	1
1.51926	13.2	3.33	1.28	72.36	0.6	9.14	0	0.11	1
1.51808	13.43	2.87	1.19	72.84	0.55	9.03	0	0	1
1.51837	13.14	2.84	1.28	72.85	0.55	9.07	0	0	1
1.51778	13.21	2.81	1.29	72.98	0.51	9.02	0	0.09	1
1.51769	12.45	2.71	1.29	73.7	0.56	9.06	0	0.24	1
1.51215	12.99	3.47	1.12	72.98	0.62	8.35	0	0.31	1
1.51824	12.87	3.48	1.29	72.95	0.6	8.43	0	0	1
1.51754	13.48	3.74	1.17	72.99	0.59	8.03	0	0	1
1.51754	13.39	3.66	1.19	72.79	0.57	8.27	0	0.11	1
1.51905	13.6	3.62	1.11	72.64	0.14	8.76	0	0	1
1.51977	13.81	3.58	1.32	71.72	0.12	8.67	0.69	0	1
1.52172	13.51	3.86	0.88	71.79	0.23	9.54	0	0.11	1
1.52227	14.17	3.81	0.78	71.35	0	9.69	0	0	1
1.52172	13.48	3.74	0.9	72.01	0.18	9.61	0	0.07	1
1.52099	13.69	3.59	1.12	71.96	0.09	9.4	0	0	1
1.52152	13.05	3.65	0.87	72.22	0.19	9.85	0	0.17	1
1.52152	13.05	3.65	0.87	72.32	0.19	9.85	0	0.17	1
1.52152	13.12	3.58	0.9	72.2	0.23	9.82	0	0.16	1
1.523	13.31	3.58	0.82	71.99	0.12	10.17	0	0.03	1
1.51574	14.86	3.67	1.74	71.87	0.16	7.36	0	0.12	2
1.51848	13.64	3.87	1.27	71.96	0.54	8.32	0	0.32	2
1.51593	13.09	3.59	1.52	73.1	0.67	7.83	0	0	2
1.51631	13.34	3.57	1.57	72.87	0.61	7.89	0	0	2
1.51596	13.02	3.56	1.54	73.11	0.72	7.9	0	0	2
1.5159	13.02	3.58	1.51	73.12	0.69	7.96	0	0	2
1.51645	13.44	3.61	1.54	72.39	0.66	8.03	0	0	2
1.51627	13	3.58	1.54	72.83	0.61	8.04	0	0	2
1.51613	13.92	3.52	1.25	72.88	0.37	7.94	0	0.14	2
1.5159	12.82	3.52	1.9	72.86	0.69	7.97	0	0	2
1.51592	12.86	3.52	2.12	72.66	0.69	7.97	0	0	2
1.51593	13.25	3.45	1.43	73.17	0.61	7.86	0	0	2
1.51646	13.41	3.55	1.25	72.81	0.68	8.1	0	0	2
1.51594	13.09	3.52	1.55	72.87	0.68	8.05	0	0.09	2
1.51409	14.25	3.09	2.08	72.28	1.1	7.08	0	0	2
1.51625	13.36	3.58	1.49	72.72	0.45	8.21	0	0	2
1.51569	13.24	3.49	1.47	73.25	0.38	8.03	0	0	2
1.51645	13.4	3.49	1.52	72.65	0.67	8.08	0	0.1	2
1.51618	13.01	3.5	1.48	72.89	0.6	8.12	0	0	2
1.5164	12.55	3.48	1.87	73.23	0.63	8.08	0	0.09	2
1.51841	12.93	3.74	1.11	72.28	0.64	8.96	0	0.22	2
1.51605	12.9	3.44	1.45	73.06	0.44	8.27	0	0	2
1.51588	13.12	3.41	1.58	73.26	0.07	8.39	0	0.19	2
1.5159	13.24	3.34	1.47	73.1	0.39	8.22	0	0	2
1.51629	12.71	3.33	1.49	73.28	0.67	8.24	0	0	2
1.5186	13.36	3.43	1.43	72.26	0.51	8.6	0	0	2
1.51841	13.02	3.62	1.06	72.34	0.64	9.13	0	0.15	2
1.51743	12.2	3.25	1.16	73.55	0.62	8.9	0	0.24	2
1.51689	12.67	2.88	1.71	73.21	0.73	8.54	0	0	2
1.51811	12.96	2.96	1.43	72.92	0.6	8.79	0.14	0	2

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Glass Identification Database

About This File

This repository contains information about the Glass Identification Database, a well-known dataset used primarily for classification tasks in forensic and criminological investigations.

Sources

Creator:
B. German
Central Research Establishment
Home Office Forensic Science Service
Aldermaston, Reading, Berkshire RG7 4PN

Technical note number: Unknown / not listed
General results: Nearest Neighbor performed competitively when compared to the rule-based system.

Relevant Information

Vina conducted a comparative study involving:

BEAGLE (a rule-based system),
Nearest Neighbor (NN) algorithm,
Discriminant Analysis (DA).

BEAGLE is a commercial product available from:
VRS Consulting, Inc.
4676 Admiralty Way, Suite 206
Marina Del Rey, CA 90292
Phone: (213) 827-7890
Fax: (213) 827-3189

Classification Results

Determining whether glass was float processed or not (number of incorrect answers):

Type of Sample	BEAGLE	NN	DA
Windows (float processed, 87)	10	12	21
Windows (non-float processed, 76)	19	16	22

The motivation behind this study is criminological investigation. Glass fragments left at crime scenes can serve as valuable evidence—if correctly identified.

Dataset Information

Number of Instances: 214
Number of Attributes: 10 (including an ID) + 1 class attribute
Attribute Type: Continuous
Missing Values: None

Attribute Information

Attribute	Description
Id	Identification number (1–214)
RI	Refractive Index
Na	Sodium (weight % in oxide)
Mg	Magnesium
Al	Aluminum
Si	Silicon
K	Potassium
Ca	Calcium
Ba	Barium
Fe	Iron
Type	Type of glass (class attribute)

Glass Type Classes

Building windows (float processed)
Building windows (non-float processed)
Vehicle windows (float processed)
Vehicle windows (non-float processed) (none in this dataset)
Containers
Tableware
Headlamps

Summary Statistics

Attribute	Min	Max	Mean	SD	Correlation with Class
RI	1.5112	1.5339	1.5184	0.0030	-0.1642
Na	10.73	17.38	13.4079	0.8166	0.5030
Mg	0.00	4.49	2.6845	1.4424	-0.7447
Al	0.29	3.50	1.4449	0.4993	0.5988
Si	69.81	75.41	72.6509	0.7745	0.1515
K	0.00	6.21	0.4971	0.6522	-0.0100
Ca	5.43	16.19	8.9570	1.4232	0.0007
Ba	0.00	3.15	0.1750	0.4972	0.5751
Fe	0.00	0.51	0.0570	0.0974	-0.1879

Class Distribution (214 Instances)

Window Glass (163 total)

Float processed: 87
- Building windows: 70
- Vehicle windows: 17
Non-float processed: 76
- Building windows: 76
- Vehicle windows: 0

Non-Window Glass (51 total)

Containers: 13
Tableware: 9
Headlamps: 29

Use Case

This dataset is widely used for:

Machine learning classification tasks
Forensic science research
Pattern recognition and data mining studies

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