机器学习_Pittsburgh Bridges Data Set(匹兹堡桥梁数据集)

Pittsburgh Bridges Data Set(匹兹堡桥梁数据集)

数据摘要：

Bridges database that has original and numeric-discretized datasets

中文关键词：

机器学习,多变量,分类,桥梁,UCI,匹兹堡,

英文关键词：

Machine Learning,MultiVarite,Classification,Bridges,UCI,Pittsburgh,

数据格式：

TEXT

数据用途：

Classification

数据详细介绍：

Pittsburgh Bridges Data Set

Abstract: Bridges database that has original and numeric-discretized datasets

Source:

Creators:

Yoram Reich & Steven J. Fenves

Department of Civil Engineering

and

Engineering Design Research Center

Carnegie Mellon University

Pittsburgh, PA 15213

Compiled from various sources.

Donor:

Yoram Reich (yoram.reich '@' https://www.wendangku.net/doc/da5989679.html,)

Data Set Information:

There are two versions to the database:

- V1 contains the original examples and

- V2 contains descriptions after discretizing numeric properties.

There are no ``classes'' in the domain. Rather this is a DESIGN domain where 5 properties (design description) need to be predicted based on 7 specification properties.

Attribute Information:

The type field state whether a property is continuous/integer (c) or nominal (n).

For properties with c,n type, the range of continuous numbers is given first and the possible values of the nominal follow the semi-colon.

Name / Type / Possible values / Comments

1. IDENTIF / -- / -- / identifier of the examples

2. RIVER / n / A, M, O / --

3. LOCATION / n / 1 to 52 / --

4. ERECTED / c,n / 1818-1986 ; CRAFTS, EMERGING, MATURE, MODERN / --

5. PURPOSE / n / WALK, AQUEDUCT, RR, HIGHWAY / --

6. LENGTH / c,n / 804-4558 ; SHORT, MEDIUM, LONG / --

7. LANES / c,n / 1, 2, 4, 6 ; 1, 2, 4, 6 / --

8. CLEAR-G / n / N, G / --

9. T-OR-D / n / THROUGH, DECK / --

10. MATERIAL / n / WOOD, IRON, STEEL / --

11. SPAN / n / SHORT, MEDUIM, LONG / --

12. REL-L / n / S, S-F, F / --

13. TYPE / n / WOOD, SUSPEN, SIMPLE-T, ARCH, CANTILEV, CONT-T / --

Relevant Papers:

Reich & Fenves (1989). Incremental Learning for Capturing Design Expertise. Technical Report: EDRC 12-34-89, Engineering Design Research Center, Carnegie Mellon University, Pittsburgh, PA.

Reich (1989). Converging to ``Ideal'' Design Knowledge by Learning, Proceedings of the First International Workshop on Formal Methods in Engineering Design, pp: 330-349, Colorado Springs, CO, January 1990.

[Web Link]

Reich (1989) Combining Nominal and Continuous Properties in an Incremental Learning System for Design. Technical Report: EDRC 12-33-89.

Reich (1989) Incremental Concept Formation with Mixed Property Types. Unpublished Manuscript.

数据预览：

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