timonecomcastnet tim peters tim extreme training half hamspam scoring aginst half false positive rate 00100 false negative rate 03636 alas 4 099 clues htmlrelated begged try tokenizeretain_pure_html_tags false random halves getting trained scored different repaired bug dropped 1 ham 1 spam floor isnt exactly 1change difference runs ham distribution runs 167 items 000 9999 1000 0 2000 0 3000 0 4000 0 5000 0 6000 0 7000 0 8000 0 9000 1 spam distribution runs 115 items 000 21 1000 0 2000 0 3000 1 4000 0 5000 0 6000 1 7000 0 8000 1 9000 6852 false positive rate 00100 false negative rate 03490 yay may mean html tags arent really needed test data provided trained enough stuff curiously sole false positive sole false positive half½ run reported preceding msg assume nigerian scam false positive happened end training data times datahamset4107687txt prob 0999632042904 probpython 001 probalteration 001 probedinburgh 001 probsubjectpython 001 probheadererrorsto1 00216278 probthanks 00319955 probhelp 0041806 probroad 00462364 probthere 00722794 probus 0906609 probour 0919118 probcompany 0921852 probvisit 0930785 probsent 0939882 probemail 0949765 probcourses 0954726 probreceived 0955209 probanalyst 0960756 probinvestment 0975139 probregulated 099 probemails 099 probmills 099 received 195171571 helonode401dmzstandardlifecom mailpythonorg esmtp exim 321 1 id 15rdsu00085k00 pythonlistpythonorg wed 10 oct 2001 033432 0400 received slukdcn4internalstandardlifecom slukdcn4standardlifecom 103272 node401dmzstandardlifecom pro893pro893 smtp id iaa53660for wed 10 oct 2001 083400 0100 received sl079320 1723188231 slukdcn4internalstandardlifecom lotus smtp mta v466 8901 7161999 smtp id 80256ae100294b60 wed 10 oct 2001 083102 0100 messageid 007e01c1515dbb255940e7581facsl079320internalstandardlifecom vickie mills subject training courses python uk date wed 10 oct 2001 083230 0100 mimeversion 10 contenttype textplain charsetiso88591 contenttransferencoding 7bit xpriority 3 xmsmailpriority normal xmailer microsoft outlook express 47231550 xmimeole produced microsoft mimeole v47231550 sender pythonlistadminpythonorg errorsto pythonlistadminpythonorg xbeenthere pythonlistpythonorg xmailmanversion 206 101270 precedence bulk listhelp listpost listsubscribe listid general discussion list python programming language listunsubscribe listarchive hi looking recommendations training courses available uk python help thanks vickie mills training analyst tel 0131 245 1127 fax 0131 245 1550 email vickie_millsstandardlifecom information standard life visit website httpwwwstandardlifecom standard life assurance company standard life house 30 lothian road edinburgh eh1 2dh registered scotland sz4 regulated personal investment authority tel 0131 225 2552 calls may recorded monitored confidential email addressee received error retaincopydisclose without consent please return us virus scan emails responsible damage caused virus alteration third party sent top 30 discriminators interesting income 629 099 http0python 643 001 headermimeversion1 672 099 http1remove 693 099 contenttypetexthtml 711 0982345 string 714 001 http1jpg 776 099 object 813 001 python 852 001 python 882 001 language 883 001 907 001 headerreturnpath2 907 099 unsubscribe 975 099 headerreceived7 1113 099 def 1142 001 http1gif 1168 099 module 1169 001 import 1332 001 headerreceived8 1342 099 headererrorsto1 1377 00216278 headerinreplyto1 1402 001 wrote 1753 001 2067 099 subjectpython 2140 001 headeruseragent1 2322 001 headerxcomplaintsto1 4351 001 wrote 4370 001 python 4972 001 headerorganization1 6921 001 still two html clues remaining contenttypetexthtml anthonys trick accounts almost third python appears 5 http0python means python found 1st field embedded http url sticking gif jpg url score 099 spam clues note damning pattern capitalization headermimeversion1 counting casesensitive nobody ever would guessed mime damning subject date would spam likely end two instances returnpath headers tue 10 sep 2002 234615 0400 spambayes xtreme training