/** 对用户性别进行过滤 */
public static void filterGender(
long uid, RecommenderBuilder recommenderBuilder, DataModel dataModel, String gender)
throws TasteException, IOException {
Set<Long> userids = getByGender("datafile/book/user.csv", gender);
// 计算指定性别用户打分过的图书
Set<Long> bookids = new HashSet<Long>();
for (long uids : userids) {
LongPrimitiveIterator iter = dataModel.getItemIDsFromUser(uids).iterator();
while (iter.hasNext()) {
long bookid = iter.next();
bookids.add(bookid);
}
}
IDRescorer rescorer = new FilterRescorer(bookids);
List<RecommendedItem> list =
recommenderBuilder.buildRecommender(dataModel).recommend(uid, RECOMMENDER_NUM, rescorer);
RecommendFactory.showItems(uid, list, false);
}
