These features are the content-based features used in:

Carlos Castillo, Debora Donato, Aristides Gionis,
Vanessa Murdock, Fabrizio Silvestri:
"Know your Neighbors: Web Spam Detection using the Web Topology".
To appear in ACM SIGIR 2007.
(Was DELIS technical report DELIS-TR-0458, 2006.)
http://www.dcc.uchile.cl/~ccastill/papers/cdgms_2006_know_your_neighbors.pdf

It was possible to compute content-based features only for 8,944 hosts that
appeared the .graph files and had their home page and page with the maximum
pagerank with content in the .warc file.

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HST_1
Number of words in the page (home page = hp)

HST_2
Number of words in the title (hp)

HST_3
Average word length (hp)

HST_4
Fraction of anchor text (hp)

HST_5
Fraction of visible text (hp)

HST_6
Compression rate of the hp

HST_7
Top 100 corpus precision (hp)

HST_8
Top 200 corpus precision (hp)

HST_9
Top 500 corpus precision (hp)

HST_10
Top 1000 corpus precision (hp)

HST_11
Top 100 corpus recall (hp)

HST_12
Top 200 corpus recall (hp)

HST_13
Top 500 corpus recall (hp)

HST_14
Top 1000 corpus recall (hp)

HST_15
Top 100 queries precision (hp)

HST_16
Top 200 queries precision (hp)

HST_17
Top 500 queries precision (hp)

HST_18
Top 1000 queries precision (hp)

HST_19
Top 100 queries recall (hp)

HST_20
Top 200 queries recall (hp)

HST_21
Top 500 queries recall (hp)

HST_22
Top 1000 queries recall (hp)

HST_23
Entropy (hp)

HST_24
Independent LH (hp)

HMG_25
Number of words in the page (page with max PageRank in the host = mp)

HMG_26
Number of words in the title (mp)

HMG_27
Average word length (mp)

HMG_28
Fraction of anchor text (mp)

HMG_29
Fraction of visible text (mp)

HMG_30
Compression rate (mp)

HMG_31
Top 100 corpus precision (mp)

HMG_32
Top 200 corpus precision (mp)

HMG_33
Top 500 corpus precision (mp)

HMG_34
Top 1000 corpus precision (mp)

HMG_35
Top 100 corpus recall (mp)

HMG_36
Top 200 corpus recall (mp)

HMG_37
Top 500 corpus recall (mp)

HMG_38
Top 1000 corpus recall (mp)

HMG_39
Top 100 queries precision (mp)

HMG_40
Top 200 queries precision (mp)

HMG_41
Top 500 queries precision (mp)

HMG_42
Top 1000 queries precision (mp)

HMG_43
Top 100 queries recall (mp)

HMG_44
Top 200 queries recall (mp)

HMG_45
Top 500 queries recall (mp)

HMG_46
Top 1000 queries recall (mp)

HMG_47
Entropy (mp)

HMG_48
Independent LH (mp)

AVG_49
Number of words in the page (average value for all pages in the host)

AVG_50
Number of words in the title (average value for all pages in the host)

AVG_51
Average word length (average value for all pages in the host)

AVG_52
Fraction of anchor text (average value for all pages in the host)

AVG_53
Fraction of visible text (average value for all pages in the host)

AVG_54
Compression rate (average value for all pages in the host)

AVG_55
Top 100 corpus precision (average value for all pages in the host)

AVG_56
Top 200 corpus precision (average value for all pages in the host)

AVG_57
Top 500 corpus precision (average value for all pages in the host)

AVG_58
Top 1000 corpus precision (average value for all pages in the host)

AVG_59
Top 100 corpus recall (average value for all pages in the host)

AVG_60
Top 200 corpus recall (average value for all pages in the host)

AVG_61
Top 500 corpus recall (average value for all pages in the host)

AVG_62
Top 1000 corpus recall (average value for all pages in the host)

AVG_63
Top 100 queries precision (average value for all pages in the host)

AVG_64
Top 200 queries precision (average value for all pages in the host)

AVG_65
Top 500 queries precision (average value for all pages in the host)

AVG_66
Top 1000 queries precision (average value for all pages in the host)

AVG_67
Top 100 queries recall (average value for all pages in the host)

AVG_68
Top 200 queries recall (average value for all pages in the host)

AVG_69
Top 500 queries recall (average value for all pages in the host)

AVG_70
Top 1000 queries recall (average value for all pages in the host)

AVG_71
Entropy (average value for all pages in the host)

AVG_72
Independent LH (average value for all pages in the host)

STD_73
Number of words in the page (Standard deviation for all pages in the host)

STD_74
Number of words in the title (Standard deviation for all pages in the host)

STD_75
Average word length (Standard deviation for all pages in the host)

STD_76
Fraction of anchor text (Standard deviation for all pages in the host)

STD_77
Fraction of visible text (Standard deviation for all pages in the host)

STD_78
Compression rate in the home page (Standard deviation for all pages in the host)

STD_79
Top 100 corpus precision (Standard deviation for all pages in the host)

STD_80
Top 200 corpus precision (Standard deviation for all pages in the host)

STD_81
Top 500 corpus precision (Standard deviation for all pages in the host)

STD_82
Top 1000 corpus precision (Standard deviation for all pages in the host)

STD_83
Top 100 corpus recall (Standard deviation for all pages in the host)

STD_84
Top 200 corpus recall (Standard deviation for all pages in the host)

STD_85
Top 500 corpus recall (Standard deviation for all pages in the host)

STD_86
Top 1000 corpus recall (Standard deviation for all pages in the host)

STD_87
Top 100 queries precision (Standard deviation for all pages in the host)

STD_88
Top 200 queries precision (Standard deviation for all pages in the host)

STD_89
Top 500 queries precision (Standard deviation for all pages in the host)

STD_90
Top 1000 queries precision (Standard deviation for all pages in the host)

STD_91
Top 100 queries recall (Standard deviation for all pages in the host)

STD_92
Top 200 queries recall (Standard deviation for all pages in the host)

STD_93
Top 500 queries recall (Standard deviation for all pages in the host)

STD_94
Top 1000 queries recall (Standard deviation for all pages in the host)

STD_95
Entropy (Standard deviation for all pages in the host)

STD_96
Independent LH (Standard deviation for all pages in the host)