Search found 31 matches

by safaa
Mon Oct 13, 2014 6:06 am
Forum: GeNIe
Topic: low prediction accuracy in a variable state
Replies: 1
Views: 1568

Re: low prediction accuracy in a variable state

any replay would be appreciated!
by safaa
Thu Oct 09, 2014 3:16 pm
Forum: GeNIe
Topic: perplexity term in genie
Replies: 0
Views: 7189

perplexity term in genie

hello ^_^ i'm using DBN for language modelling; recently i've known that to test language model we have to test something called perlexity http://en.wikipedia.org/wiki/Perplexity : which measures the how predictive is the model for sequence of words?i've read about annealed map .is it the one? my wo...
by safaa
Wed Oct 08, 2014 5:10 am
Forum: GeNIe
Topic: low prediction accuracy in a variable state
Replies: 1
Views: 1568

low prediction accuracy in a variable state

hello !
when making validation (for unrolled DBN)for target node say A_2 at time= t2;A can have values {a1,a2,...,an}. for A=a3 validation gives accuracy 0(that is DBN fails in predicting this value). how can we know why?
how can we find explanation?
by safaa
Mon Oct 06, 2014 2:44 pm
Forum: GeNIe
Topic: effect of one parent on child
Replies: 2
Views: 1793

Re: effect of one parent on child

thank you this is very helpful thesis
by safaa
Mon Oct 06, 2014 2:42 pm
Forum: GeNIe
Topic: DBN validation accuracy
Replies: 4
Views: 2389

Re: DBN validation accuracy

Hello Marek!
this is sample from my data set
dbn3ttest13_9.txt
(99.12 KiB) Downloaded 181 times
.
I don't understand
marek wrote:over-fitting the data
.
I would be grateful if you tell me what do you think? the validation accuracy are not clear for me. if you would like i can send you the details. and other experiments
by safaa
Sun Sep 28, 2014 11:24 am
Forum: GeNIe
Topic: effect of one parent on child
Replies: 2
Views: 1793

effect of one parent on child

hello ^_^
we have the CPT between nodes. how do we know to how much does a parent affect the child (this is the joint probability?)
how to document the learned network?
by safaa
Fri Sep 26, 2014 3:43 am
Forum: GeNIe
Topic: DBN validation accuracy
Replies: 4
Views: 2389

Re: DBN validation accuracy

>>why would the accuracy for a node at time t0 be lower than at time t=1?
by safaa
Thu Sep 25, 2014 8:19 am
Forum: GeNIe
Topic: DBN validation accuracy
Replies: 4
Views: 2389

DBN validation accuracy

Hello ! I have 1. made DBN with 3 time slice and then train dataset=11261 case (the training used the default settings of genie) 2. I have performed the following experiments (the target node called POS) (temporal arc only on the node pos dbn.rar ) a. validate (2kfold)with class node pos at time t1 ...
by safaa
Mon Sep 22, 2014 2:09 pm
Forum: GeNIe
Topic: validation,inference,learn
Replies: 4
Views: 2177

Re: validation,inference,learn

okay. thank you
by safaa
Mon Sep 22, 2014 9:54 am
Forum: GeNIe
Topic: DBN parameter learning
Replies: 1
Views: 1320

DBN parameter learning

hello ^_^
do we have to unroll the DBN befor parameter learning?
by safaa
Thu Sep 11, 2014 12:43 pm
Forum: GeNIe
Topic: validation,inference,learn
Replies: 4
Views: 2177

Re: validation,inference,learn

how validation is done using EM algorithm? it it type of inference?
by safaa
Thu Sep 11, 2014 3:50 am
Forum: GeNIe
Topic: validation,inference,learn
Replies: 4
Views: 2177

validation,inference,learn

hello! 1. if we want to make parameter learning again. how to delete the probabilities for all nodes. 2. if we make inference in which the target node is predicted then this is validation? is that right? 3. cross validation is for managing the validation process. inference algorithm is used to predi...
by safaa
Wed Sep 03, 2014 7:57 pm
Forum: GeNIe
Topic: genie crashes
Replies: 8
Views: 3229

Re: genie crashes

thank you.
does using smile solve this problem?
by safaa
Tue Sep 02, 2014 6:26 pm
Forum: GeNIe
Topic: genie crashes
Replies: 8
Views: 3229

Re: genie crashes

hello ! geni crashes again with this message (This application has requested the Runtime to terminate it in an unusual way.). when i download dbn which I've made prameter learning using EM without making any target nodes and executes fine, but when i re-open it. it gives the crash message above. and...