// Add 'mention edge' between each pair of users in ego-network
public void addMentionCount()
{
foreach (long memberID1 in memberIDtoIndex.Keys)
{
// Node index of member 1
int memberIndex1 = userIDtoIndex[memberID1];
// For checking 'Friendshp' potential links
if (!allLinksFromNodes.ContainsKey(memberIndex1))
{
continue;
}
// Get mention count
var mentionCounts = new Dictionary <int, int>();
double sumLogMentionCount = 0;
foreach (long memberID2 in memberIDtoIndex.Keys)
{
if (memberID1 == memberID2)
{
continue;
}
int mentionCount = dbAdapter.getMentionCount(memberID1, memberID2);
if (mentionCount > 1)
{
mentionCounts.Add(userIDtoIndex[memberID2], mentionCount);
sumLogMentionCount += Math.Log(mentionCount);
}
}
// Get the number of friendship links
int nFriendhips = 0;
foreach (ForwardLink friendship in allLinksFromNodes[memberIndex1])
{
if (friendship.type == EdgeType.FRIENDSHIP)
{
nFriendhips += 1;
}
}
// Normalize weight of 'Mention type edge'
// Add link with the weight as much as mention frequency
if (sumLogMentionCount > 1)
{
foreach (int memberIndex2 in mentionCounts.Keys)
{
double weight = nFriendhips * Math.Log(mentionCounts[memberIndex2]) / sumLogMentionCount; // Mention Edge Weight
addLink(memberIndex1, memberIndex2, EdgeType.MENTION, weight);
}
}
}
}
