function?[?probs_sorted??index??probs?]?=?AssociationLDA（?WP??BETA??W1?）
%%?Function?WriteTopics
%
%?works?on?single?samples?as?well?as?multiple?samples
if?iscell（?WP?）
????%?we?are?dealing?with?multiple?Gibbs?samples.?Need?to?average
????%?predictions?over?these?samples.?Note?that?the?WP?samples?do?not?have
????%?to?contain?the?same?number?of?topics
????
????NS?=?length（?WP?）;?%?number?of?samples
????NW?=?size（?WP{?1?}??1?）;?%?number?of?words
????NW1?=?length（?W1?）;?%?number?of?W1?cues
????probs?=?zeros（?NW??NW1?）;
????
????for?s=1:NS?
????????T??=?size（?WP{?s?}??2?）;?%?number?of?topics
????????
????????sumt??=?full（?sum（?WP{?s?}??1?））?+?NW?*?BETA;
????????beta2?=?BETA?./?sumt;

????????WP2???=?WP{?s?};?%?note?WP2?stays?sparse
????????for?z=1:T
????????????WP2（?:??z?）?=?WP2（?:??z?）?/?sumt（?z?）;
????????end

????????%?take?transpose?of?WP2?for?faster?processing
????????WP3?=?WP2（?W1??:?）‘;

????????%?this?should?also?be?sparse
????????crossprods?=?WP2?*?WP2（?W1??:?）‘;

????????sum4?=?sum（?beta2?.*?beta2?）;
????????sumbeta?=?sum（?beta2?）;
????????for?i=1:NW1
????????????sum1?=?crossprods（?:??i?）?;
????????????sum2?=?sum（?WP3（?:??i?）‘?.*?beta2?）;
????????????sum3?=?WP2?*?beta2‘;

????????????sum5?=?sum（?WP3（?:??i?））?+?sumbeta;

????????????sumt?=?（?sum1?+?sum2?+?sum3?+?sum4?）?/?sum5;
????????????
????????????sumt（?W1（?i?））?=?0;
????????????sumt?=?sumt?/?sum（?sumt?）;
????????????
????????????probs（?:??i?）?=?probs（?:??i?）?+?sumt;
????????end
????end
????
????probs?=?probs?/?NS;
else
????%?we?are?dealing?with?just?one?Gibbs?sample
????
????NW?=?size（?WP??1?）;?%?number?of?words
????T??=?size（?WP??2?）;?%?number?of?topics
????NW1?=?length（?W1?）;?%?number?of?W1?cues

????sumt??=?full（?sum（?WP??1?））?+?NW?*?BETA;
????beta2?=?BETA?./?sumt;

????WP2???=?WP;?%?note?WP2?stays?sparse
????for?z=1:T
????????WP2（?:??z?）?=?WP2（?:??z?）?/?sumt（?z?）;
????end

????%?take?transpose?of?WP2?for?faster?processing
????WP3?=?WP2（?W1??:?）‘;

????%?this?should?also?be?sparse
????crossprods?=?WP2?*?WP2（?W1??:?）‘;

????probs?=?zeros（?NW??NW1?）;
????sum4?=?sum（?beta2?.*?beta2?）;
????sumbeta?=?sum（?beta2?）;
????for?i=1:NW1
????????sum1?=?crossprods（?:??i?）?;
????????sum2?=?sum（?WP3（?:??i?）‘?.*?beta2?）;
????????sum3?=?WP2?*?beta2‘;

????????sum5?=?sum（?WP3（?:??i?））?+?sumbeta;

????????sumt?=?（?sum1?+?sum2?+?sum3?+?sum4?）?/?sum5;
????????
????????sumt（?W1（?i?））?=?0;
????????sumt?=?sumt?/?sum（?sumt?）;
????????????
????????probs（?:??i?）?=?sumt;
????end
end

[?probs_sorted??index?]?=?sort（?probs??1??‘descend‘?）;

%?TEST?CODE
%?pwz?=?WP?+?BETA;
%?for?i=1:T
%????pwz（?:??i?）?=?pwz（?:??i?）?/?sum（?pwz（?:??i?））;?
%?end
%?probs2?=?zeros（?NW??NW1?）;
%?for?i=1:NW1
%????w1?=?W1（?i?）;
%????p?=?zeros（?NW??1?）;
%????for?z=1:T
%???????p?=?p?+?pwz（?:??z?）?*?pwz（?w1??z?）?/?sum（?pwz（?w1??:?））;
%????end
%?????
%????probs2（?:??i?）?=??p;
%?end
%?

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????18494??2014-12-03?16:32??LDA講解及matlab程序\LDA實驗\Matlab?Topic?Modeling?Toolbox?1.docx

?????文件???????2987??2006-06-18?15:57??LDA講解及matlab程序\LDA實驗\topictoolbox\AssociationLDA.m

?????文件???????2904??2008-05-20?07:51??LDA講解及matlab程序\LDA實驗\topictoolbox\AssociationLDA2.m

?????文件???????2906??2008-06-03?09:04??LDA講解及matlab程序\LDA實驗\topictoolbox\AssociationLDA3.m

?????文件???????1681??2008-06-17?12:10??LDA講解及matlab程序\LDA實驗\topictoolbox\AssociationLDA4.m

?????文件???????1167??2006-06-18?15:45??LDA講解及matlab程序\LDA實驗\topictoolbox\AssociationTFIDF.m

?????文件??????55048??2005-04-03?12:20??LDA講解及matlab程序\LDA實驗\topictoolbox\authordoc_nips.mat

?????文件?????155264??2005-04-03?12:21??LDA講解及matlab程序\LDA實驗\topictoolbox\authors_nips.mat

?????文件????1830695??2005-09-07?12:12??LDA講解及matlab程序\LDA實驗\topictoolbox\bagofwords_nips.mat

?????文件?????127316??2005-09-07?12:13??LDA講解及matlab程序\LDA實驗\topictoolbox\bagofwords_psychreview.mat

?????文件?????449816??2005-04-03?12:22??LDA講解及matlab程序\LDA實驗\topictoolbox\binaryalphabet.mat

?????文件???????2381??2006-01-06?16:56??LDA講解及matlab程序\LDA實驗\topictoolbox\binarysearchstrings.c

?????文件???????5120??2006-01-06?16:52??LDA講解及matlab程序\LDA實驗\topictoolbox\binarysearchstrings.dll

?????文件???????7312??2006-01-06?16:57??LDA講解及matlab程序\LDA實驗\topictoolbox\binarysearchstrings.mexglx

?????文件???????7680??2011-04-04?08:39??LDA講解及matlab程序\LDA實驗\topictoolbox\binarysearchstrings.mexw64

?????文件???????7054??2006-07-15?14:32??LDA講解及matlab程序\LDA實驗\topictoolbox\cokus.cpp

?????文件????????379??2011-04-04?08:40??LDA講解及matlab程序\LDA實驗\topictoolbox\compilescripts.m

?????文件????????713??2005-09-07?12:18??LDA講解及matlab程序\LDA實驗\topictoolbox\convertimstocounts.m

?????文件????????735??2006-01-06?17:31??LDA講解及matlab程序\LDA實驗\topictoolbox\convertmatfiles.m

?????文件????????834??2005-04-02?11:12??LDA講解及matlab程序\LDA實驗\topictoolbox\createcollage.m

?????文件???????2509??2005-09-06?15:10??LDA講解及matlab程序\LDA實驗\topictoolbox\CreateCollocationTopics.m

?????文件??????11278??2005-09-14?08:51??LDA講解及matlab程序\LDA實驗\topictoolbox\dataformat.m

?????文件????????156??2005-04-01?22:26??LDA講解及matlab程序\LDA實驗\topictoolbox\drchrnd.m

?????文件???????1662??2005-09-07?12:14??LDA講解及matlab程序\LDA實驗\topictoolbox\exampleAT1.m

?????文件???????2794??2005-09-09?09:43??LDA講解及matlab程序\LDA實驗\topictoolbox\exampleAT2.m

?????文件???????4553??2005-09-06?16:59??LDA講解及matlab程序\LDA實驗\topictoolbox\exampleimages1.m

?????文件???????3924??2005-09-07?12:20??LDA講解及matlab程序\LDA實驗\topictoolbox\exampleimages2.m

?????文件???????1755??2014-12-05?17:53??LDA講解及matlab程序\LDA實驗\topictoolbox\exampleLDA1.m

?????文件???????2234??2005-09-07?12:14??LDA講解及matlab程序\LDA實驗\topictoolbox\exampleLDA2.m

?????文件???????1023??2005-09-06?15:30??LDA講解及matlab程序\LDA實驗\topictoolbox\exampleLDA3.m

............此處省略85個文件信息