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Hello,
Apologies if I have not labeled this correctly.
I have run a toy problem on Mahout 0.3 (locally) for LDA that I used to test Blei's c version of LDA that he posts on his site. It has an exact solution that the LDA should converge to. Please see attached PDF that describes the intended output.
Is LDA working? The following output indicates some sort of collapsing behavior to me.
T0 T1 T2 T3 T4
x w x u x
u u g j n
l r i m l
j q h h p
v p e i q
e t f g v
d s d f o
b c b n k
y f c l m
w v u v u
c d p y t
k o l r r
i b j k j
f e k e f
g x y s y
t y w b w
h i s p s
o l v x d
q j t d i
n k o t b
The intended output is (again, please see attached):
D I N S X
d i n s x
c h m t y
e j o r w
b k l u v
f g p q a
a f k p b
g l q v u
h m j w t
y u r o c
n s d d i
s e x f f
r q i i n
m v w c o
o w u a h
q n s h g
p t c x d
t x f e l
x d e j s
w y g b j
i r y n r
u o h y m
k b t l e
v c a m k
j a b g p
l p v k q
What tests do you run to make sure the output is correct?
Thank you,
Mike.
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MAHOUT-1009 Remove old LDA implementation from codebase
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