title_with_video/applications/match_algorithm/rank.py

"""
@author: luojunhui
"""
from applications.match_algorithm.title_similarity import jcd_title_similarity
from applications.functions.log import logging


def jac_score(d1, d2):
    """
    通过交并集来判断
    :param d1:
    :param d2:
    :return:
    """
    f1_keys = set(d1["key_words"])
    f2_keys = set(d2["key_words"])
    keys_union = f1_keys | f2_keys
    keys_intersection = f1_keys & f2_keys
    f1_search_keys = set(d1["search_keys"])
    f2_search_keys = set(d2["search_keys"])
    search_keys_union = f1_search_keys | f2_search_keys
    search_keys_intersection = f1_search_keys & f2_search_keys
    f1_extra_keys = set(d1["extra_keys"])
    f2_extra_keys = set(d2["extra_keys"])
    extra_keys_union = f1_extra_keys | f2_extra_keys
    extra_keys_intersection = f1_extra_keys & f2_extra_keys
    score_1 = len(keys_intersection) / len(keys_union)
    score_2 = len(search_keys_intersection) / len(search_keys_union)
    score_3 = len(extra_keys_intersection) / len(extra_keys_union)
    return score_1 * 0.4 + score_2 * 0.4 + score_3 * 0.2, d2['video_id']


def title_similarity_rank(content_title, recall_list):
    """

    :param content_title:
    :param recall_list:
    :return:
    """
    include_title_list = []
    for item in recall_list:
        video_info = item['result']
        platform = item['platform']
        if platform in ['dy_search', 'baidu_search']:
            title = video_info['title']
        elif platform in ['xg_search']:
            title = video_info['video_title']
        else:
            continue
        item['title'] = title
        include_title_list.append(item)
    # include_title_list加上相似度分
    title_score_list = [
        {'score': jcd_title_similarity(content_title, item['title']), **item}
        for item in
        include_title_list
    ]
    sorted_list = sorted(title_score_list, key=lambda x: x['score'], reverse=True)
    return sorted_list