✨ Toy Machines (#15)

* ✨ Add `toy_machines` multiclass dataset

srlearn/toy_machines/README.md

@@ -0,0 +1,29 @@
+# toy_machines
+
+This is a toy dataset based on one distributed with the
+[ACE system](https://dtai.cs.kuleuven.be/ACE/doc/) (a short overview is provided
+on [page 11 of "The ACE Data Mining System: User's Manual"](https://dtai.cs.kuleuven.be/ACE/doc/ACEuser-1.2.16.pdf#page=11)).
+
+Machines contain parts, and some of those parts are either replaceable or
+irreplaceable. Your goal is to infer whether the machine should be repaired
+(`replace`), sent back to the manufacturer for repairs (`sendback`), or if the
+machine is okay as it is (`ok`).
+
+## Task
+
+**Multiclass Classification**: Is the machine `ok`, or should it be `sendback`
+or `replace`?
+
+```prolog
+machine(+id,#action).
+worn(+id,-part).
+replaceable(+part).
+irreplaceable(+part).
+
+range: part={gear, wheel, chain, engine, control_unit}.
+range: action={ok, fix, sendback}.
+```
+
+## Notes
+
+A one-versus-rest classification scheme is recommended.

srlearn/toy_machines/toy_machines/background.txt

@@ -0,0 +1,7 @@
+machine(+id,#action).
+worn(+id,-part).
+replaceable(+part).
+irreplaceable(+part).
+
+range: part={gear, wheel, chain, engine, control_unit}.
+range: action={ok, fix, sendback}.

srlearn/toy_machines/toy_machines/test/test_facts.txt

@@ -0,0 +1,11 @@
+replaceable(gear).
+replaceable(wheel).
+replaceable(chain).
+irreplaceable(engine).
+irreplaceable(control_unit).
+worn(13,chain).
+worn(13,wheel).
+worn(13,gear).
+worn(13,engine).
+worn(15,wheel).
+worn(15,gear).

srlearn/toy_machines/toy_machines/test/test_pos.txt

@@ -0,0 +1,3 @@
+machine(13,sendback).
+machine(14,ok).
+machine(15,fix).

srlearn/toy_machines/toy_machines/train/train_facts.txt

@@ -0,0 +1,23 @@
+replaceable(gear).
+replaceable(wheel).
+replaceable(chain).
+irreplaceable(engine).
+irreplaceable(control_unit).
+worn(1,gear).
+worn(1,engine).
+worn(3,gear).
+worn(4,engine).
+worn(5,gear).
+worn(5,chain).
+worn(6,wheel).
+worn(7,wheel).
+worn(7,control_unit).
+worn(9,wheel).
+worn(9,chain).
+worn(10,engine).
+worn(10,chain).
+worn(11,engine).
+worn(11,control_unit).
+worn(12,chain).
+worn(12,wheel).
+worn(12,gear).

srlearn/toy_machines/toy_machines/train/train_pos.txt

@@ -0,0 +1,12 @@
+machine(1,sendback).
+machine(2,ok).
+machine(3,fix).
+machine(4,sendback).
+machine(5,fix).
+machine(6,fix).
+machine(7,sendback).
+machine(8,ok).
+machine(9,fix).
+machine(10,sendback).
+machine(11,sendback).
+machine(12,fix).