public BaseFeature()
{
m_hourSpan = Global.HourSpan;
m_defaultMinHourCount = Global.DefaultMinHourCount;
m_relationDays = Global.RelationDays;
FourBehaviorCountCollection = new BehaviorCountCollection(4);
FourMinHourCountCollection = new HourCountCollection(4);
UniqueFourBehaviorCount = new BehaviorCountCollection(4);
}
public void Normalize(BehaviorCountCollection maxItem, BehaviorCountCollection minItem)
{
for (int i = 0; i < ActionData.Length; i++)
{
for (int j = 0; j < ActionData[0].Length; j++)
{
ActionData[i][j] = Utils.Normalize(ActionData[i][j], maxItem.ActionData[i][j], minItem.ActionData[i][j]);
}
}
}
/// <summary>
/// 与item比较，将两者属性的最小值都赋予自己
/// </summary>
/// <param name="item"></param>
public void CatchMinValue(BehaviorCountCollection item)
{
for (int i = 0; i < ActionData.Length; i++)
{
for (int j = 0; j < ActionData[0].Length; j++)
{
ActionData[i][j] = Math.Min(ActionData[i][j], item.ActionData[i][j]);
}
}
}
public UserFeature(int userId, DateTime predictDate)
{
UniqueItemFourBehaviorCount = new BehaviorCountCollection(4);
UniqueCategoryFourBehaviorCount = new BehaviorCountCollection(4);
UserCategorieDict = new Dictionary <int, UserCategoryFeature>();
PredictDate = predictDate;
Id = userId;
TransferRateCollection = new BehaviorCountCollection(3);
}
public UserFeature()
{
UniqueItemFourBehaviorCount = new BehaviorCountCollection(4);
UniqueCategoryFourBehaviorCount = new BehaviorCountCollection(4);
}
public CategoryFeature(int id, DateTime predictDate)
{
PredictDate = predictDate;
Id = id;
TransferRateCollection = new BehaviorCountCollection(3);
}
public CategoryFeature()
{
TransferRateCollection = new BehaviorCountCollection(3);
}
public ItemFeature(int itemId, DateTime predictDate)
{
PredictDate = predictDate;
Id = itemId;
TransferRateCollection = new BehaviorCountCollection(3);
}
public ItemFeature()
{
TransferRateCollection = new BehaviorCountCollection(3);
}
