1 | using HeuristicLab.Common;
|
---|
2 | using HeuristicLab.Core;
|
---|
3 | using HeuristicLab.Encodings.SymbolicExpressionTreeEncoding;
|
---|
4 | using HeuristicLab.Persistence.Default.CompositeSerializers.Storable;
|
---|
5 |
|
---|
6 | namespace HeuristicLab.Problems.GeneticProgramming.GlucosePrediction {
|
---|
7 | [StorableClass]
|
---|
8 | [Item("Blood glucose level forecast grammar", "See MedGEC Workshop at GECCO 2016")]
|
---|
9 | public class Grammar : SymbolicExpressionGrammar {
|
---|
10 | [StorableConstructor]
|
---|
11 | protected Grammar(bool deserializing) : base(deserializing) { }
|
---|
12 | protected Grammar(Grammar original, Cloner cloner) : base(original, cloner) { }
|
---|
13 |
|
---|
14 | public Grammar()
|
---|
15 | : base("Blood glucose level forecast grammar", "See MedGEC Workshop at GECCO 2016") {
|
---|
16 | Initialize();
|
---|
17 | }
|
---|
18 |
|
---|
19 | public void Initialize() {
|
---|
20 | var func = new SimpleSymbol("Func", "The root for the blood glucose forecasting model.", 3, 3);
|
---|
21 | var exprGluc = new SimpleSymbol("ExprGluc", string.Empty, 1, 1);
|
---|
22 | var exprIns = new SimpleSymbol("ExprIns", string.Empty, 1, 1);
|
---|
23 | var exprCh = new SimpleSymbol("ExprCh", string.Empty, 1, 1);
|
---|
24 |
|
---|
25 | var predGlucData = new PredictedGlucoseVariableSymbol();
|
---|
26 | var realGlucData = new RealGlucoseVariableSymbol();
|
---|
27 |
|
---|
28 | // operators for exprGluc
|
---|
29 | var plusGluc = new SimpleSymbol("+", "+", 2, 2);
|
---|
30 | var minusGluc = new SimpleSymbol("-", "-", 2, 2);
|
---|
31 | var prodGluc = new SimpleSymbol("*", "*", 2, 2);
|
---|
32 | var divGluc = new SimpleSymbol("/", "/", 2, 2);
|
---|
33 | var expGluc = new SimpleSymbol("Exp", "Exp", 1, 1);
|
---|
34 | var sinGluc = new SimpleSymbol("Sin", "Sin", 1, 1);
|
---|
35 | var cosGluc = new SimpleSymbol("Cos", "Cos", 1, 1);
|
---|
36 | var logGluc = new SimpleSymbol("Log", "Log", 1, 1);
|
---|
37 | // var cteGluc = new CteSymbol();
|
---|
38 |
|
---|
39 | // operators for exprCh
|
---|
40 | var plusCh = new SimpleSymbol("+Ch", "+", 2, 2);
|
---|
41 | var minusCh = new SimpleSymbol("-Ch", "-", 2, 2);
|
---|
42 | var prodCh = new SimpleSymbol("*Ch", "*", 2, 2);
|
---|
43 | var divCh = new SimpleSymbol("/Ch", "/", 2, 2);
|
---|
44 | var expCh = new SimpleSymbol("ExpCh", "Exp", 1, 1);
|
---|
45 | var sinCh = new SimpleSymbol("SinCh", "Sin", 1, 1);
|
---|
46 | var cosCh = new SimpleSymbol("CosCh", "Cos", 1, 1);
|
---|
47 | var logCh = new SimpleSymbol("LogCh", "Log", 1, 1);
|
---|
48 | var curvedChShape1 = new CurvedChVariableSymbol("CurvedCh1", "", 2, 5);
|
---|
49 | var curvedChShape2 = new CurvedChVariableSymbol("CurvedCh2", "", 3, 3);
|
---|
50 | var curvedChShape3 = new CurvedChVariableSymbol("CurvedCh3", "", 5, 2);
|
---|
51 | // var cteCh = new CteSymbol();
|
---|
52 |
|
---|
53 | // operators for exprIns
|
---|
54 | var plusIns = new SimpleSymbol("+Ins", "+", 2, 2);
|
---|
55 | var minusIns = new SimpleSymbol("-Ins", "-", 2, 2);
|
---|
56 | var prodIns = new SimpleSymbol("*Ins", "*", 2, 2);
|
---|
57 | var divIns = new SimpleSymbol("/Ins", "/", 2, 2);
|
---|
58 | var expIns = new SimpleSymbol("ExpIns", "Exp", 1, 1);
|
---|
59 | var sinIns = new SimpleSymbol("SinIns", "Sin", 1, 1);
|
---|
60 | var cosIns = new SimpleSymbol("CosIns", "Cos", 1, 1);
|
---|
61 | var logIns = new SimpleSymbol("LogIns", "Log", 1, 1);
|
---|
62 | var curvedInsShape1 = new CurvedInsVariableSymbol("CurvedIns1", "", 2, 5);
|
---|
63 | var curvedInsShape2 = new CurvedInsVariableSymbol("CurvedIns2", "", 3, 3);
|
---|
64 | var curvedInsShape3 = new CurvedInsVariableSymbol("CurvedIns3", "", 5, 2);
|
---|
65 | var realInsVar = new RealInsulineVariableSymbol();
|
---|
66 | // var cteCh = new CteSymbol();
|
---|
67 |
|
---|
68 | AddSymbol(func);
|
---|
69 | AddSymbol(exprGluc);
|
---|
70 | AddSymbol(exprIns);
|
---|
71 | AddSymbol(exprCh);
|
---|
72 | AddSymbol(predGlucData);
|
---|
73 | AddSymbol(realGlucData);
|
---|
74 | AddSymbol(plusGluc);
|
---|
75 | AddSymbol(minusGluc);
|
---|
76 | AddSymbol(prodGluc);
|
---|
77 | AddSymbol(divGluc);
|
---|
78 | AddSymbol(expGluc);
|
---|
79 | AddSymbol(sinGluc);
|
---|
80 | AddSymbol(cosGluc);
|
---|
81 | AddSymbol(logGluc);
|
---|
82 |
|
---|
83 | AddSymbol(curvedChShape1);
|
---|
84 | AddSymbol(curvedChShape2);
|
---|
85 | AddSymbol(curvedChShape3);
|
---|
86 | AddSymbol(plusCh);
|
---|
87 | AddSymbol(minusCh);
|
---|
88 | AddSymbol(prodCh);
|
---|
89 | AddSymbol(divCh);
|
---|
90 | AddSymbol(expCh);
|
---|
91 | AddSymbol(sinCh);
|
---|
92 | AddSymbol(cosCh);
|
---|
93 | AddSymbol(logCh);
|
---|
94 |
|
---|
95 | AddSymbol(curvedInsShape1);
|
---|
96 | AddSymbol(curvedInsShape2);
|
---|
97 | AddSymbol(curvedInsShape3);
|
---|
98 | AddSymbol(plusIns);
|
---|
99 | AddSymbol(minusIns);
|
---|
100 | AddSymbol(prodIns);
|
---|
101 | AddSymbol(divIns);
|
---|
102 | AddSymbol(expIns);
|
---|
103 | AddSymbol(sinIns);
|
---|
104 | AddSymbol(cosIns);
|
---|
105 | AddSymbol(logIns);
|
---|
106 | AddSymbol(realInsVar);
|
---|
107 |
|
---|
108 | // <func> ::= <exprgluc> + <exprch> - <exprins>
|
---|
109 | AddAllowedChildSymbol(func, exprGluc, 0);
|
---|
110 | AddAllowedChildSymbol(func, exprCh, 1);
|
---|
111 | AddAllowedChildSymbol(func, exprIns, 2);
|
---|
112 |
|
---|
113 | /* # Glucose |
---|
114 | <exprgluc> ::= (<exprgluc> <op> <exprgluc>) |
---|
115 | |<preop> (<exprgluc>) |
---|
116 | |(<cte> <op> <exprgluc>) |
---|
117 | |predictedData(k-<idxCurr2h>) |
---|
118 | |realData(k-<idx2hOrMore>)
|
---|
119 | */
|
---|
120 | var opGlucSet = new Symbol[] { plusGluc, minusGluc, prodGluc, divGluc, expGluc, sinGluc, cosGluc, logGluc };
|
---|
121 | foreach (var opGluc in opGlucSet) {
|
---|
122 | AddAllowedChildSymbol(exprGluc, opGluc);
|
---|
123 | }
|
---|
124 |
|
---|
125 | // <exprgluc> ::= (<exprgluc> <op> <exprgluc>)
|
---|
126 | // <exprgluc> ::= (<cte> <op> <exprgluc>)
|
---|
127 | foreach (var op in new Symbol[] { plusGluc, minusGluc, prodGluc, divGluc }) {
|
---|
128 | AddAllowedChildSymbol(op, exprGluc, 0);
|
---|
129 | // AddAllowedChildSymbol(op, cteGluc, 0); // cte is only allowed as first child
|
---|
130 | AddAllowedChildSymbol(op, exprGluc, 1);
|
---|
131 | }
|
---|
132 | // <exprgluc> ::= <preop> (<exprgluc>)
|
---|
133 | foreach (var op in new Symbol[] { expGluc, sinGluc, cosGluc, logGluc }) {
|
---|
134 | AddAllowedChildSymbol(op, exprGluc, 0);
|
---|
135 | }
|
---|
136 |
|
---|
137 | AddAllowedChildSymbol(exprGluc, predGlucData); // <exprgluc> ::= predictedData(k-<idxCurr2h>)
|
---|
138 | AddAllowedChildSymbol(exprGluc, realGlucData); // <exprgluc> ::= realData(k-<idx2hOrMore>)
|
---|
139 |
|
---|
140 |
|
---|
141 | /*
|
---|
142 | # CH |
---|
143 | <exprch> ::= (<exprch> <op> <exprch>) |
---|
144 | |<preop> (<exprch>) |
---|
145 | |(<cte> <op> <exprch>) |
---|
146 | |(getPrevData(1,k,1) * <cte> * <curvedCH>) |
---|
147 | |
---|
148 | # CH in 2 (0.041,24), 3 (0.027,36) and 4 (0.02,48) hours with 3 shapes of beta: |
---|
149 | <curvedCH> ::= beta(0.041*Math.min(24,getPrevDataDistance(1,k,1)),2,5) |
---|
150 | |beta(0.041*Math.min(24,getPrevDataDistance(1,k,1)),3,3) |
---|
151 | |beta(0.041*Math.min(24,getPrevDataDistance(1,k,1)),5,2) |
---|
152 | |beta(0.027*Math.min(36,getPrevDataDistance(1,k,1)),2,5) |
---|
153 | |beta(0.027*Math.min(36,getPrevDataDistance(1,k,1)),3,3) |
---|
154 | |beta(0.027*Math.min(36,getPrevDataDistance(1,k,1)),5,2) |
---|
155 | |beta(0.02*Math.min(48,getPrevDataDistance(1,k,1)),2,5) |
---|
156 | |beta(0.02*Math.min(48,getPrevDataDistance(1,k,1)),3,3) |
---|
157 | |beta(0.02*Math.min(48,getPrevDataDistance(1,k,1)),5,2)
|
---|
158 | */
|
---|
159 | var opChSet = new Symbol[] { plusCh, minusCh, prodCh, divCh, expCh, sinCh, cosCh, logCh };
|
---|
160 | foreach (var opCh in opChSet) {
|
---|
161 | AddAllowedChildSymbol(exprCh, opCh);
|
---|
162 | }
|
---|
163 |
|
---|
164 | // <exprch> ::= (<exprch> <op> <exprch>)
|
---|
165 | // <exprch> ::= (<cte> <op> <exprch>)
|
---|
166 | foreach (var op in new Symbol[] { plusCh, minusCh, prodCh, divCh }) {
|
---|
167 | AddAllowedChildSymbol(op, exprCh, 0);
|
---|
168 | // AddAllowedChildSymbol(op, cteCh, 0); // cte is only allowed as first child
|
---|
169 | AddAllowedChildSymbol(op, exprCh, 1);
|
---|
170 | }
|
---|
171 | // <exprch> ::= <preop> (<exprch>)
|
---|
172 | foreach (var op in new Symbol[] { expCh, sinCh, cosCh, logCh }) {
|
---|
173 | AddAllowedChildSymbol(op, exprCh, 0);
|
---|
174 | }
|
---|
175 | // <exprch> ::= (getPrevData(1,k,1) * <cte> * <curvedCH>)
|
---|
176 | AddAllowedChildSymbol(exprCh, curvedChShape1);
|
---|
177 | AddAllowedChildSymbol(exprCh, curvedChShape2);
|
---|
178 | AddAllowedChildSymbol(exprCh, curvedChShape3);
|
---|
179 |
|
---|
180 | /*
|
---|
181 | # Insulin: |
---|
182 | ## Sum of insulins in past 2h minus the peak |
---|
183 | ## Curve for the peak in past 2h |
---|
184 | <exprins> ::= (<exprins> <op> <exprins>) |
---|
185 | |<preop> (<exprins>) |
---|
186 | |(<cte> <op> <exprins>) |
---|
187 | |getVariable(2,k-<idx>) |
---|
188 | |(getSumOfValues(24,k,2) - getMaxValue(24,k,2) <op> (getMaxValue(24,k,2) <op> <curvedINS>)) |
---|
189 | |
---|
190 | # INS in 2 (0.041,24), 3 (0.027,36) and 4 (0.02,48) hours with 3 shapes of beta: |
---|
191 | <curvedINS> ::= beta(0.041*Math.min(24,getMaxValueDistance(24,k,2)),2,5) |
---|
192 | |beta(0.041*Math.min(24,getMaxValueDistance(24,k,2)),3,3) |
---|
193 | |beta(0.041*Math.min(24,getMaxValueDistance(24,k,2)),5,2) |
---|
194 | |beta(0.027*Math.min(36,getMaxValueDistance(36,k,2)),2,5) |
---|
195 | |beta(0.027*Math.min(36,getMaxValueDistance(36,k,2)),3,3) |
---|
196 | |beta(0.027*Math.min(36,getMaxValueDistance(36,k,2)),5,2) |
---|
197 | |beta(0.02*Math.min(48,getMaxValueDistance(48,k,2)),2,5) |
---|
198 | |beta(0.02*Math.min(48,getMaxValueDistance(48,k,2)),3,3) |
---|
199 | |beta(0.02*Math.min(48,getMaxValueDistance(48,k,2)),5,2) |
---|
200 |
|
---|
201 | */
|
---|
202 | var opInsSet = new Symbol[] { plusIns, minusIns, prodIns, divIns, expIns, sinIns, cosIns, logIns };
|
---|
203 | foreach (var opIns in opInsSet) {
|
---|
204 | AddAllowedChildSymbol(exprIns, opIns);
|
---|
205 | }
|
---|
206 |
|
---|
207 | // <exprins> ::= (<exprins> <op> <exprins>)
|
---|
208 | // <exprins> ::= (<cte> <op> <exprins>)
|
---|
209 | foreach (var op in new Symbol[] { plusIns, minusIns, prodIns, divIns }) {
|
---|
210 | AddAllowedChildSymbol(op, exprIns, 0);
|
---|
211 | // AddAllowedChildSymbol(op, cteIns, 0); // cte is only allowed as first child
|
---|
212 | AddAllowedChildSymbol(op, exprIns, 1);
|
---|
213 | }
|
---|
214 | // <exprins> ::= <preop> (<exprins>)
|
---|
215 | foreach (var op in new Symbol[] { expIns, sinIns, cosIns, logIns }) {
|
---|
216 | AddAllowedChildSymbol(op, exprIns, 0);
|
---|
217 | }
|
---|
218 |
|
---|
219 | // <exprIns> ::= getVariable(2,k-<idx>)
|
---|
220 | AddAllowedChildSymbol(exprIns, realInsVar);
|
---|
221 |
|
---|
222 | AddAllowedChildSymbol(exprIns, curvedInsShape1);
|
---|
223 | AddAllowedChildSymbol(exprIns, curvedInsShape2);
|
---|
224 | AddAllowedChildSymbol(exprIns, curvedInsShape3);
|
---|
225 |
|
---|
226 | // root is func
|
---|
227 | AddAllowedChildSymbol(StartSymbol, func);
|
---|
228 | }
|
---|
229 |
|
---|
230 | public override IDeepCloneable Clone(Cloner cloner) {
|
---|
231 | return new Grammar(this, cloner);
|
---|
232 | }
|
---|
233 | }
|
---|
234 | }
|
---|