agRec : An Enhanced Tag EnT EnTagRec Recommendation System for - PowerPoint PPT Presentation

agRec : An Enhanced Tag EnT EnTagRec Recommendation System for Software Information Sites Shaowei Wang, David Lo, Bogdan Vasilescu, Alexander Serebrenik @b_vasilescu @aserebrenik

/ department of mathematics and computer science 18/02/15 Page 2

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EnTagRec / department of mathematics and computer science 18/02/15 Page 8

Xia et al. MSR’13 EnTagRec TagCombine r@5 0.805 0.595 p@5 0.346 0.221 r@5 0.815 0.568 p@5 0.358 0.251 r@5 0.88 0.675 p@5 0.369 0.278 r@5 0.64 0.639 p@5 0.382 0.381 / department of mathematics and computer science 18/02/15 Page 9

EnTagRec TagCombine r@5 0.805 0.595 p@5 0.346 0.221 r@5 0.815 0.568 p@5 0.358 0.251 r@5 0.88 0.675 p@5 0.369 0.278 r@5 0.64 0.639 p@5 0.382 0.381 / department of mathematics and computer science 18/02/15 Page 10

EnT EnTagRec agRec : How have we done it?

EnT EnTagRec agRec : How have we done it? L-LDA [Ramage et al. 2009] tokenization, identifier splitting, stop words, stemming

EnT EnTagRec agRec : How have we done it?

P( | )? I have Java daemon which I want to pass shell commands. For example … / department of mathematics and computer science 18/02/15 Page 14

Actually (preprocessing … ) P( | )? Java daemon want pass shell command exampl daemon load configur possibl / department of mathematics and computer science 18/02/15 Page 15

Tags = nouns (phrases) P( | )? Java daemon want pass shell command exampl daemon load configur possibl / department of mathematics and computer science 18/02/15 Page 16

| P( ) Java Estimate from | P( ) the training daemon data | Combine to P( ) get P for the shell entire text … / department of mathematics and computer science 18/02/15 Page 17

Java daemon want pass shell command exampl daemon load configur | possibl P( ) | ) P( … … | ) P( … / department of mathematics and computer science 18/02/15 Page 18

Supercalifragilisticexpialidocious / department of mathematics and computer science 18/02/15 Page 19

Supercalifragilisticexpialidocious 0.85 / department of mathematics and computer science 18/02/15 Page 20

EnT EnTagRec agRec : How have we done it? α *BIC + β *FIC Train α and β

EnTagRec EnT agRec • is better than BI BIC and FIC FIC separately EnTagRec BIC FIC r@5 0.805 0.565 0.593 p@5 0.346 0.232 0.258 r@5 0.815 0.505 0.637 p@5 0.358 0.212 0.282 r@5 0.88 0.523 0.713 p@5 0.369 0.212 0.298 r@5 0.64 0.391 0.545 p@5 0.382 0.230 0.322 / department of mathematics and computer science 18/02/15 Page 22

EnT EnTagRec agRec • is better than BI BIC and FIC FIC separately • is better than Ta TagCom Combi bine / department of mathematics and computer science 18/02/15 Page 23

So, what was all this about? / department of mathematics and computer science 18/02/15 Page 24

agRec : An Enhanced Tag EnT EnTagRec Recommendation System for - PowerPoint PPT Presentation

agRec : An Enhanced Tag EnT EnTagRec Recommendation System for Software Information Sites Shaowei Wang, David Lo, Bogdan Vasilescu, Alexander Serebrenik @b_vasilescu @aserebrenik / department of mathematics and computer science 18/02/15

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