public void treeBuilding(EducationTable education_table, TreeNode tree_node)
{
VeryfiedClassInfo[] thisClassInfo = ClassInfoInit();
for (int i = 0; i < education_table.Rows.Count; i++)
{
foreach (VeryfiedClassInfo clinf in thisClassInfo)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
int k = 0;
foreach (VeryfiedClassInfo clinf in thisClassInfo)
{
if (clinf.number_of_checked >= 1)
{
k++;
}
}
if (k >= 2)
{
tree_node.is_leaf = false;
int index_of_parametr = 0;
string best_value_for_split = "";
Parametr param = new Parametr();
FindBetterParametr(education_table, ref index_of_parametr, ref best_value_for_split, ref param);
tree_node.rule = new Rule();
tree_node.rule.index_of_param = index_of_parametr;
tree_node.rule.value = best_value_for_split;
tree_node.left_child = new TreeNode();
tree_node.right_child = new TreeNode();
EducationTable left_table = new EducationTable();
EducationTable right_table = new EducationTable();
SplitEducationTable(education_table, tree_node.rule, param, ref left_table, ref right_table);
treeBuilding(left_table, tree_node.left_child);
treeBuilding(right_table, tree_node.right_child);
}
else
{
tree_node.is_leaf = true;
tree_node.rule = new Rule();
foreach (VeryfiedClassInfo clinf in thisClassInfo)
{
if (clinf.number_of_checked > 0)
{
tree_node.rule.value = clinf.class_name;
}
}
}
}
private void btnBuildTree_Click(object sender, EventArgs e)
{
Selection selection = sqlManager.GetOneSelectionWithRequest("SELECT * FROM SELECTION WHERE NAME ='" + tvTaskSelections.SelectedNode.Text + "'");
arrParams = sqlManager.GetParamsWithRequest("SELECT * FROM PARAM WHERE TASK_ID = (SELECT TASK_ID FROM SELECTION WHERE NAME = '" + tvTaskSelections.SelectedNode.Text + "')");
List <ValueParametr> arrValues = sqlManager.GetValuesWithRequest("select * from VALUE_PARAM where SELECTION_ID=(select ID from SELECTION where NAME ='" + tvTaskSelections.SelectedNode.Text + "')");
EducationTable educatTable = new EducationTable(arrValues, arrParams);
TreeNode root = new TreeNode();
int root_id = 1 + sqlManager.GetMaxFeature("SELECT COUNT(1) FROM NODE", "COUNT(1)");
treeBuilding(educatTable, root);
SaveTreeToDB(root, root_id, selection.TaskID, selection.ID);
}
public void SplitEducationTable(EducationTable education_table, Rule split_rule, Parametr param, ref EducationTable left_table, ref EducationTable right_table)
{
if ((param.Type == TypeParametr.Real) || (param.Type == TypeParametr.Int))
{
for (int i = 0; i < education_table.Rows.Count; i++)
{
double curVal = Convert.ToDouble(education_table.Rows.ElementAt(i)[split_rule.index_of_param].Value, UsCulture);
double splitVal = Convert.ToDouble(split_rule.value, UsCulture);
if (curVal <= splitVal)
{
right_table.Rows.Add(education_table.Rows.ElementAt(i));
}
else
{
left_table.Rows.Add(education_table.Rows.ElementAt(i));
}
}
right_table.ParameterCount = education_table.ParameterCount;
left_table.ParameterCount = education_table.ParameterCount;
}
else
{
for (int i = 0; i < education_table.Rows.Count; i++)
{
String curVal = education_table.Rows.ElementAt(i)[split_rule.index_of_param].Value;
String splitVal = split_rule.value;
if (curVal == splitVal)
{
right_table.Rows.Add(education_table.Rows.ElementAt(i));
}
else
{
left_table.Rows.Add(education_table.Rows.ElementAt(i));
}
}
right_table.ParameterCount = education_table.ParameterCount;
left_table.ParameterCount = education_table.ParameterCount;
}
}
public void FindBetterParametr(EducationTable education_table,ref int index_of_parametr,ref string best_value_for_split, ref Parametr _param)
{
index_of_parametr = 0;
best_value_for_split = "";
VeryfiedClassInfo[] leftClassInf = ClassInfoInit();
VeryfiedClassInfo[] rightClassInf = ClassInfoInit();
Parametr param;
double giniValue = -100000;
for(int index = 1; index < education_table.ParameterCount; index++)
{
param = sqlManager.GetOneParametrWithRequest("SELECT * FROM PARAM WHERE ID ='" + education_table.Rows.ElementAt(1)[index].ParametrID + "'");
education_table.BubbleSortByParam(index, param);
if ((param.Type == TypeParametr.Real) || (param.Type == TypeParametr.Int))
{
double average = 0;
for (int prevRowInd = 1, nextRowInd = 2; nextRowInd < education_table.Rows.Count; prevRowInd++, nextRowInd++)
{
average = (Convert.ToDouble(education_table.Rows.ElementAt(prevRowInd)[index].Value, UsCulture) + Convert.ToDouble(education_table.Rows.ElementAt(nextRowInd)[index].Value, UsCulture)) / 2.0;
for (int i = 0; i < education_table.Rows.Count; i++)
{
if (Convert.ToDouble(education_table.Rows.ElementAt(i)[index].Value, UsCulture) <= average)
{
foreach (VeryfiedClassInfo clinf in rightClassInf)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
else
{
foreach (VeryfiedClassInfo clinf in leftClassInf)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
}
double newGiniValue = GiniSplitCalc(leftClassInf, rightClassInf);
if (newGiniValue > giniValue)
{
giniValue = newGiniValue;
index_of_parametr = index;
best_value_for_split = average.ToString(UsCulture);
_param = param;
}
for (int i = 0; i < leftClassInf.Length; i++)
{
leftClassInf[i].number_of_checked = 0;
rightClassInf[i].number_of_checked = 0;
}
}
}
else
{
//param.Range
int number_of_var = 0;
for (int i = 0; i < param.Range.Length; i++)
{
if (param.Range[i] == '|')
number_of_var++;
}
String[] variables = new String[number_of_var + 1];
for (int i = 0, j = 0; i < param.Range.Length; i++)
{
if (param.Range[i] == '|')
{
j++;
continue;
}
if (param.Range[i] != ' ')
variables[j]+= param.Range[i];
}
for (int j = 0; j < number_of_var; j++)
{
for (int i = 0; i < education_table.Rows.Count; i++)
{
if (education_table.Rows.ElementAt(i)[index].Value == variables[j])
{
foreach (VeryfiedClassInfo clinf in rightClassInf)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
else
{
foreach (VeryfiedClassInfo clinf in leftClassInf)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
}
double newGiniValue = GiniSplitCalc(leftClassInf, rightClassInf);
if (newGiniValue > giniValue)
{
giniValue = newGiniValue;
index_of_parametr = index;
best_value_for_split = variables[j];
_param = param;
}
for (int i = 0; i < leftClassInf.Length; i++)
{
leftClassInf[i].number_of_checked = 0;
rightClassInf[i].number_of_checked = 0;
}
}
}
}
}
private void btnBuildTree_Click(object sender, EventArgs e)
{
Selection selection = sqlManager.GetOneSelectionWithRequest("SELECT * FROM SELECTION WHERE NAME ='"+tvTaskSelections.SelectedNode.Text+"'");
arrParams = sqlManager.GetParamsWithRequest("SELECT * FROM PARAM WHERE TASK_ID = (SELECT TASK_ID FROM SELECTION WHERE NAME = '" + tvTaskSelections.SelectedNode.Text + "')");
List<ValueParametr> arrValues = sqlManager.GetValuesWithRequest("select * from VALUE_PARAM where SELECTION_ID=(select ID from SELECTION where NAME ='" + tvTaskSelections.SelectedNode.Text + "')");
EducationTable educatTable = new EducationTable(arrValues, arrParams);
TreeNode root = new TreeNode();
int root_id = 1 + sqlManager.GetMaxFeature("SELECT COUNT(1) FROM NODE","COUNT(1)");
treeBuilding(educatTable, root);
SaveTreeToDB(root, root_id, selection.TaskID, selection.ID);
}
public void treeBuilding(EducationTable education_table, TreeNode tree_node)
{
VeryfiedClassInfo[] thisClassInfo = ClassInfoInit();
for (int i = 0; i < education_table.Rows.Count; i++)
{
foreach (VeryfiedClassInfo clinf in thisClassInfo)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
int k = 0;
foreach (VeryfiedClassInfo clinf in thisClassInfo)
{
if (clinf.number_of_checked >= 1)
{
k++;
}
}
if (k >= 2)
{
tree_node.is_leaf = false;
int index_of_parametr = 0;
string best_value_for_split = "";
Parametr param = new Parametr();
FindBetterParametr(education_table, ref index_of_parametr, ref best_value_for_split, ref param);
tree_node.rule = new Rule();
tree_node.rule.index_of_param = index_of_parametr;
tree_node.rule.value = best_value_for_split;
tree_node.left_child = new TreeNode();
tree_node.right_child = new TreeNode();
EducationTable left_table = new EducationTable();
EducationTable right_table = new EducationTable();
SplitEducationTable(education_table, tree_node.rule, param, ref left_table, ref right_table);
treeBuilding(left_table, tree_node.left_child);
treeBuilding(right_table, tree_node.right_child);
}
else
{
tree_node.is_leaf = true;
tree_node.rule = new Rule();
foreach (VeryfiedClassInfo clinf in thisClassInfo)
{
if (clinf.number_of_checked > 0)
{
tree_node.rule.value = clinf.class_name;
}
}
}
}
public void SplitEducationTable(EducationTable education_table,Rule split_rule,Parametr param, ref EducationTable left_table, ref EducationTable right_table)
{
if ((param.Type == TypeParametr.Real) || (param.Type == TypeParametr.Int))
{
for (int i = 0; i < education_table.Rows.Count; i++)
{
double curVal = Convert.ToDouble(education_table.Rows.ElementAt(i)[split_rule.index_of_param].Value, UsCulture);
double splitVal = Convert.ToDouble(split_rule.value, UsCulture);
if (curVal <= splitVal)
{
right_table.Rows.Add(education_table.Rows.ElementAt(i));
}
else
{
left_table.Rows.Add(education_table.Rows.ElementAt(i));
}
}
right_table.ParameterCount = education_table.ParameterCount;
left_table.ParameterCount = education_table.ParameterCount;
}
else
{
for (int i = 0; i < education_table.Rows.Count; i++)
{
String curVal = education_table.Rows.ElementAt(i)[split_rule.index_of_param].Value;
String splitVal = split_rule.value;
if (curVal == splitVal)
{
right_table.Rows.Add(education_table.Rows.ElementAt(i));
}
else
{
left_table.Rows.Add(education_table.Rows.ElementAt(i));
}
}
right_table.ParameterCount = education_table.ParameterCount;
left_table.ParameterCount = education_table.ParameterCount;
}
}
public void FindBetterParametr(EducationTable education_table, ref int index_of_parametr, ref string best_value_for_split, ref Parametr _param)
{
index_of_parametr = 0;
best_value_for_split = "";
VeryfiedClassInfo[] leftClassInf = ClassInfoInit();
VeryfiedClassInfo[] rightClassInf = ClassInfoInit();
Parametr param;
double giniValue = -100000;
for (int index = 1; index < education_table.ParameterCount; index++)
{
param = sqlManager.GetOneParametrWithRequest("SELECT * FROM PARAM WHERE ID ='" + education_table.Rows.ElementAt(1)[index].ParametrID + "'");
education_table.BubbleSortByParam(index, param);
if ((param.Type == TypeParametr.Real) || (param.Type == TypeParametr.Int))
{
double average = 0;
for (int prevRowInd = 1, nextRowInd = 2; nextRowInd < education_table.Rows.Count; prevRowInd++, nextRowInd++)
{
average = (Convert.ToDouble(education_table.Rows.ElementAt(prevRowInd)[index].Value, UsCulture) + Convert.ToDouble(education_table.Rows.ElementAt(nextRowInd)[index].Value, UsCulture)) / 2.0;
for (int i = 0; i < education_table.Rows.Count; i++)
{
if (Convert.ToDouble(education_table.Rows.ElementAt(i)[index].Value, UsCulture) <= average)
{
foreach (VeryfiedClassInfo clinf in rightClassInf)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
else
{
foreach (VeryfiedClassInfo clinf in leftClassInf)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
}
double newGiniValue = GiniSplitCalc(leftClassInf, rightClassInf);
if (newGiniValue > giniValue)
{
giniValue = newGiniValue;
index_of_parametr = index;
best_value_for_split = average.ToString(UsCulture);
_param = param;
}
for (int i = 0; i < leftClassInf.Length; i++)
{
leftClassInf[i].number_of_checked = 0;
rightClassInf[i].number_of_checked = 0;
}
}
}
else
{
//param.Range
int number_of_var = 0;
for (int i = 0; i < param.Range.Length; i++)
{
if (param.Range[i] == '|')
{
number_of_var++;
}
}
String[] variables = new String[number_of_var + 1];
for (int i = 0, j = 0; i < param.Range.Length; i++)
{
if (param.Range[i] == '|')
{
j++;
continue;
}
if (param.Range[i] != ' ')
{
variables[j] += param.Range[i];
}
}
for (int j = 0; j < number_of_var; j++)
{
for (int i = 0; i < education_table.Rows.Count; i++)
{
if (education_table.Rows.ElementAt(i)[index].Value == variables[j])
{
foreach (VeryfiedClassInfo clinf in rightClassInf)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
else
{
foreach (VeryfiedClassInfo clinf in leftClassInf)
{
if (clinf.class_name == education_table.Rows.ElementAt(i)[0].Value)
{
clinf.number_of_checked++;
}
}
}
}
double newGiniValue = GiniSplitCalc(leftClassInf, rightClassInf);
if (newGiniValue > giniValue)
{
giniValue = newGiniValue;
index_of_parametr = index;
best_value_for_split = variables[j];
_param = param;
}
for (int i = 0; i < leftClassInf.Length; i++)
{
leftClassInf[i].number_of_checked = 0;
rightClassInf[i].number_of_checked = 0;
}
}
}
}
}
