1. Title: Mushroom Databa
2. Sources:
(a) Mushroom records drawn from The Audubon Society Field Guide to North
American Mushrooms (1981). G. H. Lincoff (Pres.), New York: Alfred
A. Knopf
(b) Donor: Jeff Schlimmer (Jeffrey.Schlimmer@a.u.edu)
(c) Date: 27 April 1987
3. Past Usage:
淫男
1. Schlimmer,J.S. (1987). Concept Acquisition Through Reprentational
Adjustment (Technical Report 87-19). Doctoral disration, Department
of Information and Computer Science, University of California, Irvine.
-
-- STAGGER: asymptoted to 95% classification accuracy after reviewing
1000 instances.
2. Iba,W., Wogulis,J., & Langley,P. (1988). Trading off Simplicity
and Coverage in Incremental Concept Learning. In Proceedings of
the 5th International Conference on Machine Learning, 73-79.
Ann Arbor, Michigan: Morgan Kaufmann.
-- approximately the same results with their HILLARY algorithm
4. Relevant Information:
This data t includes descriptions of hypothetical samples
corresponding to 23 species of gilled mushrooms in the Agaricus and
Lepiota Family (pp. 500-525). Each species is identified as
definitely edible, definitely poisonous, or of unknown edibility and
笔英文not recommended. This latter class was combined with the poisonous
one. The Guide clearly states that there is no simple rule for
determining the edibility of a mushroom; no rule like ``leaflets
three, let it be'' for Poisonous Oak and Ivy.
5. Number of Instances: 8124
鸟窝怎么画>走进森林
6. Number of Attributes: 22 (all nominally valued)
7. Attribute Information: (class: edible=e, poisonous=p)
1. cap-shape: bell=b,conical=c,convex=x,flat=f,
knobbed=k,sunken=s
2. cap-surface: fibrous=f,grooves=g,scaly=y,smooth=s
3. cap-color: brown=n,buff=b,cinnamon=c,gray=g,green=r,
pink=p,purple=u,red=e,white=w,yellow=y
4. bruis?: bruis=t,no=f
5. odor: almond=a,ani=l,creosote=c,fishy=y,foul=f,
musty=m,none=n,pungent=p,spicy=s
6. gill-attachment: attached=a,descending=d,free=f,notched=n
7. gill-spacing: clo=c,crowded=w,distant=d
8. gill-size: broad=b,narrow=n
9. gill-color: black=k,brown=n,buff=b,chocolate=h,gray=g,运动会加油搞
green=r,orange=o,pink=p,purple=u,red=e,
white=w,yellow=y
困难的
10. stalk-shape: enlarging=e,tapering=t
11. stalk-root: bulbous=b,club=c,cup=u,equal=e,
rhizomorphs=z,rooted=r,missing=?
12. stalk-surface-above-ring: ibrous=f,scaly=y,silky=k,smooth=s
13. stalk-surface-below-ring: ibrous=f,scaly=y,silky=k,smooth=s
14. stalk-color-above-ring: brown=n,buff=b,cinnamon=c,gray=g,orange=o,
pink=p,red=e,white=w,yellow=y
15. stalk-color-below-ring: brown=n,buff=b,cinnamon=c,gray=g,orange=o,
pink=p,red=e,white=w,yellow=y
16. veil-type: partial=p,universal=u
17. veil-color: brown=n,orange=o,white=w,yellow=y
18. ring-number: none=n,one=o,two=t
19. ring-type: cobwebby=c,evanescent=e,flaring=f,large=l,
none=n,pendant=p,sheathing=s,zone=z
20. spore-print-color: black=k,brown=n,buff=b,chocolate=h,green=r,
orange=o,purple=u,white=w,yellow=y
写景的好词好句
21. population: abundant=a,clustered=c,numerous=n,
scattered=s,veral=v,solitary=y
22. habitat: grass=g,leaves=l,meadows=m,paths=p,
urban=u,waste=w,woods=d
8. Missing Attribute Values: 2480 of them (denoted by "?"), all for
attribute #11.
9. Class Distribution:
-- edible: 4208 (51.8%)
手工纸制作-- poisonous: 3916 (48.2%)
-- total: 8124 instances
