top-k标记算法

contents.items()

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0              ('LDAP Built with OpenLDAP LDAP / SDK', '/:=@')
1              ('LDAP SSL support unavailable', ':')
2              ('suEXEC mechanism enabled lili wrapper /usr/sbin/suexec', '()/:')
3              ('Digest generating secret for digest authentication ...', '.:')
4              ('Digest done', ':')
5              ('LDAP Built with OpenLDAP LMAP SDK', ':')
6              ('LDAP SSL support available', ':')
7              ('Factory error creating channel.jni jni channel.jni jni', '().:')
8              ("config.update Can't create avalibe hannel.jni jni", "'().:")

frequent_token 频繁标记

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0              ('LDAP Built with OpenLDAP LDAP / SDK', '/:=@')
---------------------frequent_token-----------------------
('Built', 'LDAP', 'with')
---------------------frequent_token-----------------------

---------------------frequent_token-----------------------
5              ('LDAP Built with OpenLDAP LMAP SDK', ':')
---------------------frequent_token-----------------------
('Built', 'LDAP', 'with')
---------------------frequent_token-----------------------