/** Returns default text. */
virtual QString defaultText() const /* override */
{
return m_data.m_fIsUsable ?
tr("%1, %2: %3, %4", "col.2 text, col.3 name: col.3 text, col.1 name")
.arg(text(1))
.arg(parentTree()->headerItem()->text(2)).arg(text(2))
.arg(parentTree()->headerItem()->text(0)) :
tr("%1, %2: %3", "col.2 text, col.3 name: col.3 text")
.arg(text(1))
.arg(parentTree()->headerItem()->text(2)).arg(text(2));
}
float
logLikely(FeatureTree* ft)
{
//cerr << "LL " << *ft << endl;
int ftc = ft->count;
assert(ftc > 0);
FeatureTree* ftp = parentTree(ft);
assert(ftp);
int ftpc = ftp->count;
assert(ftpc > 0);
FeatMap::iterator fmi = ft->feats.begin();
float ans = 0;
/* we compute the sum for each feature f on ft of
|f|(log(p(f|ft))-log(p(f|ftb))) = logLcomp(fc, ftc, fpc, ftpc) */
for( ; fmi != ft->feats.end() ; fmi++)
{
Feat* f = &((*fmi).second);
Feat* fp = parentFeat(f);
assert(fp);
int fc = f->cnt();
int fpc = fp->cnt();
float val = logLcomp(fc, ftc, fpc, ftpc);
//cerr << "lcomp " << *f << " = " << val << endl;
ans += val;
}
return ans;
}
QModelIndex QITreeViewItem::modelIndex() const
{
/* Acquire model: */
const QAbstractItemModel *pModel = parentTree()->model();
/* Check whether we have proxy model set or source one otherwise: */
const QSortFilterProxyModel *pProxyModel = qobject_cast<const QSortFilterProxyModel*>(pModel);
/* Acquire root model-index: */
const QModelIndex rootIndex = parentTree()->rootIndex();
/* Acquire source root model-index, which can be the same as root model-index: */
const QModelIndex sourceRootModelIndex = pProxyModel ? pProxyModel->mapToSource(rootIndex) : rootIndex;
/* Check whether we have root model-index here: */
if ( sourceRootModelIndex.internalPointer()
&& sourceRootModelIndex.internalPointer() == this)
return rootIndex;
/* Determine our parent model-index: */
const QModelIndex parentIndex = parentItem() ? parentItem()->modelIndex() : rootIndex;
/* Determine our position inside parent: */
int iPositionInParent = -1;
for (int i = 0; i < pModel->rowCount(parentIndex); ++i)
{
/* Acquire child model-index: */
const QModelIndex childIndex = parentIndex.child(i, 0);
/* Acquire source child model-index, which can be the same as child model-index: */
const QModelIndex sourceChildModelIndex = pProxyModel ? pProxyModel->mapToSource(childIndex) : childIndex;
/* Check whether we have child model-index here: */
if ( sourceChildModelIndex.internalPointer()
&& sourceChildModelIndex.internalPointer() == this)
{
iPositionInParent = i;
break;
}
}
/* Make sure we found something: */
if (iPositionInParent == -1)
return QModelIndex();
/* Return model-index as child of parent model-index: */
return parentIndex.child(iPositionInParent, 0);
}
void
doRanking()
{
FeatureTree* root = FeatureTree::roots(whichInt);
assert(root);
FeatTreeIter fi(root);
FeatureTree* f;
for( ; fi.alive() ; fi.next() )
{
f = fi.curr;
//cerr << "Looking at " << *f << endl;
/* features at level 1 are automatically used */
FeatureTree* parFt = parentTree(f);
assert(parFt);
assert(parFt->ind != AUXIND);
if(parFt->ind == ROOTIND) markFeat(f, 1);
else
{
float ll = logLikely(f);
pair<const float, FeatureTree*> ipair(ll, f);
if(ll > 0) featRank.insert(ipair);
}
/*
int cnt = f->cnt();
if(cnt >= 20) markFeat(f, 1);
else if(!parFt) markFeat(f, 1);
else
{
float ll = logLikely(f);
if(cnt >= 10 && ll > 0.1) markFeat(f,1);
else if(cnt >= 5 && ll > 2.0) markFeat(f,1);
else if(cnt >= 3 && ll > 8.0) markFeat(f, 1);
}
*/
totStates++;
}
}
QRect QITreeViewItem::rect() const
{
/* Redirect call to parent-tree: */
return parentTree() ? parentTree()->visualRect(modelIndex()) : QRect();
}
