| Converted from Irvine by Ronny Kohavi.
| This is the standardized version.
| Removed unique identifier.
|
| WARNING: This database should be credited to the original owner whenever
|          used for any publication whatsoever.
| 
| 1. Title: Stanardized Audiology Database 
| 
| 2. Sources:
| 
|     Original Version:
| 
|     (a) Original Owner: Professor Jergen at Baylor College of Medicine
|     (b) Donor: Bruce Porter (porter@fall.cs.utexas.EDU)
|     (c) Date Original Received: 12/3/1987
| 
|     Standardized Version:
| 
|     (a) Donor: Ross Quinlan
|     (b) Date Standardized version received 8/18/92
| 
| 3. Past Usage: (Original Version) 
|    -- See: Bareiss, E. Ray, & Porter, Bruce (1987).  Protos: An Exemplar-Based
|       Learning Apprentice.  In the Proceedings of the 4th International
|       Workshop on Machine Learning, 12-23, Irvine, CA: Morgan Kaufmann.
| 
| 4. Relevant Information:
| 
|    This database is a standardized version of the original audiology database
|    (see audiology.* in this directory).  The non-standard set of attributes
|    have been converted to a standard set of attributes according to the rules
|    that follow.
| 
|    - Each property that appears anywhere in the original .data or .test
|      file has been represented as a separate attribute in this file.
| 
|    - A property such as age_gt_60 is represented as a boolean attribute with
|      values f and t.
| 
|    - In most cases, a property of the form x(y) is represented as a discrete
|      attribute x() whose possible values are the various y's; air() is an
|      example.  There are two exceptions:
| 
|      - when only one value of y appears anywhere, e.g. static(normal).
|        In this case, x_y appears as a boolean attribute.
| 
|      - when one case can have two or more values of x, e.g. history(..).
|        All possible values of history are treated as separate boolean
|        attributes.
| 
|    - Since boolean attributes only appear as positive conditions, each boolean
|      attribute is assumed to be false unless noted as true.  The value of
|      multi-value discrete attributes taken as unknown ("?") unless a value is
|      specified.
| 
|    - The original case identifications, p1 to p200 in the .data file and t1
|      to t26 in the .test file, have been added as a unique identifier attribute. 
| 
|    [Note: in the original .data file, p165 has a repeated specification
|    of o_ar_c(normal); p166 has repeated specification of speech(normal)
|    and conflicting values air(moderate) and air(mild).  No other
|    problems with the original data were noted.]
| 
| 5. Number of instances: 200 training cases, 26 test cases
| 
| 6. Number of attributes: 69 + identifier attribute + class attribute
| 
| 7. Attribute information:
| 
|    age_gt_60:		     f, t.
|    air():		     mild,moderate,severe,normal,profound.
|    airBoneGap:		     f, t.
|    ar_c():		     normal,elevated,absent.
|    ar_u():		     normal,absent,elevated.
|    bone():		     mild,moderate,normal,unmeasured.
|    boneAbnormal:	     f, t.
|    bser():		     normal,degraded.
|    history_buzzing:	     f, t.
|    history_dizziness:	     f, t.
|    history_fluctuating:	     f, t.
|    history_fullness:	     f, t.
|    history_heredity:	     f, t.
|    history_nausea:	     f, t.
|    history_noise:	     f, t.
|    history_recruitment:	     f, t.
|    history_ringing:	     f, t.
|    history_roaring:	     f, t.
|    history_vomiting:	     f, t.
|    late_wave_poor:	     f, t.
|    m_at_2k:		     f, t.
|    m_cond_lt_1k:	     f, t.
|    m_gt_1k:		     f, t.
|    m_m_gt_2k:		     f, t.
|    m_m_sn:		     f, t.
|    m_m_sn_gt_1k:	     f, t.
|    m_m_sn_gt_2k:	     f, t.
|    m_m_sn_gt_500:	     f, t.
|    m_p_sn_gt_2k:	     f, t.
|    m_s_gt_500:		     f, t.
|    m_s_sn:		     f, t.
|    m_s_sn_gt_1k:	     f, t.
|    m_s_sn_gt_2k:	     f, t.
|    m_s_sn_gt_3k:	     f, t.
|    m_s_sn_gt_4k:	     f, t.
|    m_sn_2_3k:		     f, t.
|    m_sn_gt_1k:		     f, t.
|    m_sn_gt_2k:		     f, t.
|    m_sn_gt_3k:		     f, t.
|    m_sn_gt_4k:		     f, t.
|    m_sn_gt_500:		     f, t.
|    m_sn_gt_6k:		     f, t.
|    m_sn_lt_1k:		     f, t. 
|    m_sn_lt_2k:		     f, t.
|    m_sn_lt_3k:		     f, t.
|    middle_wave_poor:	     f, t.
|    mod_gt_4k:		     f, t.
|    mod_mixed:		     f, t.
|    mod_s_mixed:		     f, t.
|    mod_s_sn_gt_500:	     f, t.
|    mod_sn:		     f, t.
|    mod_sn_gt_1k:	     f, t.
|    mod_sn_gt_2k:	     f, t.
|    mod_sn_gt_3k:	     f, t.
|    mod_sn_gt_4k:	     f, t.
|    mod_sn_gt_500:	     f, t.
|    notch_4k:		     f, t.
|    notch_at_4k:		     f, t.
|    o_ar_c():		     normal,elevated,absent.
|    o_ar_u():		     normal,absent,elevated.
|    s_sn_gt_1k:		     f, t.
|    s_sn_gt_2k:		     f, t.
|    s_sn_gt_4k:		     f, t.
|    speech():		     normal,good,very_good,very_poor,poor,unmeasured.
|    static_normal:	     f, t.
|    tymp():		     a,as,b,ad,c.
|    viith_nerve_signs:        f, t.
|    wave_V_delayed:	     f, t.
|    waveform_ItoV_prolonged:  f, t.
|    indentifier               (unique for each instance)
| 
|    class:                    cochlear_unknown,mixed_cochlear_age_fixation,poss_central
|                              mixed_cochlear_age_otitis_media,mixed_poss_noise_om,
|                              cochlear_age,normal_ear,cochlear_poss_noise,cochlear_age_and_noise,
|                              acoustic_neuroma,mixed_cochlear_unk_ser_om,conductive_discontinuity,
|                              retrocochlear_unknown,conductive_fixation,bells_palsy,
|                              cochlear_noise_and_heredity,mixed_cochlear_unk_fixation,
|                              otitis_media,possible_menieres,possible_brainstem_disorder,
|                              cochlear_age_plus_poss_menieres,mixed_cochlear_age_s_om,
|                              mixed_cochlear_unk_discontinuity,mixed_poss_central_om
| 
| 8. Missing attributes: Yes
| 
| 9. Class Distribution: (in the training set)
|     1. acoustic_neuroma: 1
|     2. bells_palsy: 1
|     3. cochlear_age: 46
|     4. cochlear_age_and_noise: 18
|     5. cochlear_age_plus_poss_menieres: 1
|     6. cochlear_noise_and_heredity: 2
|     7. cochlear_poss_noise: 16
|     8. cochlear_unknown: 48
|     9. conductive_discontinuity: 2
|    10. conductive_fixation: 6
|    11. mixed_cochlear_age_fixation: 1
|    12. mixed_cochlear_age_otitis_media: 4
|    13. mixed_cochlear_age_s_om: 2
|    14. mixed_cochlear_unk_discontinuity: 2
|    15. mixed_cochlear_unk_fixation: 5
|    16. mixed_cochlear_unk_ser_om: 3
|    17. mixed_poss_central_om: 1
|    18. mixed_poss_noise_om: 2
|    19. normal_ear: 20
|    20. otitis_media: 4
|    21. poss_central: 1
|    22. possible_brainstem_disorder: 4
|    23. possible_menieres: 8
|    24. retrocochlear_unknown: 2
| 
| 
| 

cochlear_unknown,mixed_cochlear_age_fixation,poss_central,
 mixed_cochlear_age_otitis_media,mixed_poss_noise_om,
 cochlear_age,normal_ear,cochlear_poss_noise,cochlear_age_and_noise,
 acoustic_neuroma,mixed_cochlear_unk_ser_om,conductive_discontinuity,
 retrocochlear_unknown,conductive_fixation,bells_palsy,
 cochlear_noise_and_heredity,mixed_cochlear_unk_fixation,
 otitis_media,possible_menieres,possible_brainstem_disorder,
 cochlear_age_plus_poss_menieres,mixed_cochlear_age_s_om,
 mixed_cochlear_unk_discontinuity,mixed_poss_central_om.

age_gt_60:		     f, t.
air():		     mild,moderate,severe,normal,profound.
airBoneGap:		     f, t.
ar_c():		     normal,elevated,absent.
ar_u():		     normal,absent,elevated.
bone():		     mild,moderate,normal,unmeasured.
boneAbnormal:	     f, t.
bser():		     normal,degraded.
history_buzzing:	     f, t.
history_dizziness:	     f, t.
history_fluctuating:	     f, t.
history_fullness:	     f, t.
history_heredity:	     f, t.
history_nausea:	     f, t.
history_noise:	     f, t.
history_recruitment:	     f, t.
history_ringing:	     f, t.
history_roaring:	     f, t.
history_vomiting:	     f, t.
late_wave_poor:	     f, t.
m_at_2k:		     f, t.
m_cond_lt_1k:	     f, t.
m_gt_1k:		     f, t.
m_m_gt_2k:		     f, t.
m_m_sn:		     f, t.
m_m_sn_gt_1k:	     f, t.
m_m_sn_gt_2k:	     f, t.
m_m_sn_gt_500:	     f, t.
m_p_sn_gt_2k:	     f, t.
m_s_gt_500:		     f, t.
m_s_sn:		     f, t.
m_s_sn_gt_1k:	     f, t.
m_s_sn_gt_2k:	     f, t.
m_s_sn_gt_3k:	     f, t.
m_s_sn_gt_4k:	     f, t.
m_sn_2_3k:		     f, t.
m_sn_gt_1k:		     f, t.
m_sn_gt_2k:		     f, t.
m_sn_gt_3k:		     f, t.
m_sn_gt_4k:		     f, t.
m_sn_gt_500:		     f, t.
m_sn_gt_6k:		     f, t.
m_sn_lt_1k:		     f, t. 
m_sn_lt_2k:		     f, t.
m_sn_lt_3k:		     f, t.
middle_wave_poor:	     f, t.
mod_gt_4k:		     f, t.
mod_mixed:		     f, t.
mod_s_mixed:		     f, t.
mod_s_sn_gt_500:	     f, t.
mod_sn:		     f, t.
mod_sn_gt_1k:	     f, t.
mod_sn_gt_2k:	     f, t.
mod_sn_gt_3k:	     f, t.
mod_sn_gt_4k:	     f, t.
mod_sn_gt_500:	     f, t.
notch_4k:		     f, t.
notch_at_4k:		     f, t.
o_ar_c():		     normal,elevated,absent.
o_ar_u():		     normal,absent,elevated.
s_sn_gt_1k:		     f, t.
s_sn_gt_2k:		     f, t.
s_sn_gt_4k:		     f, t.
speech():		     normal,good,very_good,very_poor,poor,unmeasured.
static_normal:	     f, t.
tymp():		     a,as,b,ad,c.
viith_nerve_signs:        f, t.
wave_V_delayed:	     f, t.
waveform_ItoV_prolonged:  f, t.