Question

我想一个人做一个搜索引擎。所以我想在完成搜寻器之后建立一个反向索引。但是时间太长了。因此，我希望对代码有一些建议。（在Windows上安装Lucene太困难和烦人，所以我想自己做，学习反向索引的实现，而不仅仅是使用lucene。）

mydb = mysql.connector.connect(
      host="localhost",
      user="root",
      passwd="121314",
      database="spider"
    )
mycursor = mydb.cursor()

mycursor.execute("SELECT id, data FROM page")
result = mycursor.fetchall()

for row in result:
    lexicon(row[0], row[1])

word_dict = {}
r = redis.Redis(host="127.0.0.1", port=6379, db=0)

def lexicon(idd, data):
    print("Lexiconing and building index.") 
    word_list = jieba.cut_for_search(str(data))

    # stop_words
    with open('stop_words.txt') as f:
        stop_words = [line.strip() for line in f.readlines()]

    for item in word_list:
        if item not in stop_words:
            if item not in word_dict:
                word_dict[item] = {}
                word_dict[item][idd] = 1               
                r.hset(item, idd, 1) 
            else:
                if idd not in word_dict[item]:
                    word_dict[item][idd] = 1
                    r.hset(item, idd, 1) 
                else:
                    word_dict[item][idd] += 1
                    r.hincrby(item, idd, 1)

如何更快地建立倒排索引？

0 个答案: