public int ProcessTags(List <UserTagReport> tags, List <User> Users, ExperimentOptions Options, int RealTag, bool isTraining)
{
int PredictedTag;
if (isTraining)
{
PredictedTag = RealTag;
}
else
{
if (Options.maxTrust)
{
PredictedTag = (from report in tags orderby Users[report.UserID].PredictedTrust descending, report.RandomColumnValue select report.Tag).ToArray()[0];
}
else
{
double sum1 = 0, sum2 = 0;
int t;
foreach (var report in tags)
{
t = Users[report.UserID].PredictedTrust;
sum1 += t * report.Tag;
sum2 += t;
}
double a1 = (sum1 / sum2 - 1) / (DataSimulation.DefaultGroupSimulationOptions.TagOccupancies.Length - 1 - 1);
PredictedTag = policy.ConvertOccupancyValueToTag(a1, DataSimulation.DefaultGroupSimulationOptions.TagOccupancies);
}
}
return(PredictedTag);
}
double lamda_user = 0.95; // forgetting for user. 1:remember everything 0:remember nothing
public int ProcessTags(List <UserTagReport> tags, List <User> Users, ExperimentOptions Options, int RealTag, bool isTraining, List <double> SectionRValue, List <double> SectionSValue)
{
int PredictedTag;
int CurrentSection = tags[0].Section;
double user_tag;
int user_id;
double user_trust;
double rsum = 0;
double ssum = 0;
double mxt = -1;
double sro, sso, r, s, E;
double MaxVoteTag = 1;
if (isTraining)
{
PredictedTag = RealTag;
}
else
{
sro = SectionRValue[CurrentSection - 1];
sso = SectionSValue[CurrentSection - 1];
for (int i = 0; i < tags.Count; i++)
{
user_id = tags[i].UserID;
user_tag = tags[i].Tag;
user_trust = Users[user_id].PredictedTrust;
r = user_tag;
s = param.maxTagOptions - user_tag + 1;
if (!Options.maxTrust)
{
rsum += r * user_trust;
ssum += s * user_trust;
}
else
{
if (user_trust > mxt)
{
mxt = user_trust;
rsum = r;
ssum = s;
}
}
}
rsum += lamda_section * sro;
ssum += lamda_section * sso;
E = rsum / (rsum + ssum);
PredictedTag = policy.ConvertOccupancyValueToTag(E, DataSimulation.DefaultGroupSimulationOptions.TagOccupancies);
SectionRValue[CurrentSection - 1] = rsum;
SectionSValue[CurrentSection - 1] = ssum;
}
return(PredictedTag);
}
