Search found 10 matches
- Thu Mar 23, 2023 9:55 pm
- Forum: GeNIe
- Topic: Validation using data with known diagnoses
- Replies: 11
- Views: 5541
Re: Validation using data with known diagnoses
It's still a little fuzzy but becoming clearer. I have a network that was learned from data where one of the variables (binary) had 9 positive out of 10 (and one negative). Rather than the probability distribution being 0.9 and 0.1, it's 0.86363636 and 0.13636364. Based on what you're saying, this i...
- Thu Mar 23, 2023 6:36 pm
- Forum: GeNIe
- Topic: Validation using data with known diagnoses
- Replies: 11
- Views: 5541
Re: Validation using data with known diagnoses
I don't think I understand what "parameter learning" means. If I provide a data set with known values, what parameters are the EM algorithm learning? i.e. if I have a feature that is present in 2 of 10 cases, absent in 6 of 10 cases, and unknown in 2 of 10 cases, what is being learned? The...
- Thu Mar 23, 2023 2:29 pm
- Forum: GeNIe
- Topic: Validation using data with known diagnoses
- Replies: 11
- Views: 5541
Re: Validation using data with known diagnoses
Thank you. Next question: I created a naive bayesian network and entered probability distributions based on data. Then I used the "learn new network" feature to learn a Naive Bayesian network using default parameters. I then compared both networks against a separate data set and they perfo...
- Tue Mar 21, 2023 9:16 pm
- Forum: GeNIe
- Topic: Validation using data with known diagnoses
- Replies: 11
- Views: 5541
Re: Validation using data with known diagnoses
Question:
Once cases that were "misdiagnosed" are identified (given the actual diagnoses are known for each case), it it possible to identify and prioritize the nodes/values responsible for misdiagnosis?
Once cases that were "misdiagnosed" are identified (given the actual diagnoses are known for each case), it it possible to identify and prioritize the nodes/values responsible for misdiagnosis?
- Tue Mar 21, 2023 5:06 pm
- Forum: GeNIe
- Topic: Validation using data with known diagnoses
- Replies: 11
- Views: 5541
Re: Validation using data with known diagnoses
Thanks! That worked perfectly.
- Mon Mar 20, 2023 8:47 pm
- Forum: GeNIe
- Topic: Validation using data with known diagnoses
- Replies: 11
- Views: 5541
Re: Validation using data with known diagnoses
p.s. after reading through the information on validation within the Help -> Using GeNIe -> Learning -> Validation section, I was able to see what percentage of cases were correctly diagnosed from test and validation sets, with the test set being the set from which the bayesian network was derived, a...
- Mon Mar 20, 2023 6:08 pm
- Forum: GeNIe
- Topic: Validation using data with known diagnoses
- Replies: 11
- Views: 5541
Validation using data with known diagnoses
I saw/read somewhere that there is a video on validation but can't find it. Is this video available somewhere? I'm particularly interested in figuring out what % of each of the cases in my data set end up with the correct diagnosis (using the "diagnosis" functionality) utilizing a naive Ba...
- Sat Feb 25, 2023 7:25 pm
- Forum: GeNIe
- Topic: BayesBox and BayesMobile released
- Replies: 6
- Views: 31235
Re: BayesBox and BayesMobile released
Nevermind. I realized I can do in GeNIe what I was trying to in BayesMobile. Is it (or when will it be) possible to run the diagnosis function in BayesMobile for Discrete Models?
- Thu Feb 23, 2023 11:32 pm
- Forum: GeNIe
- Topic: BayesBox and BayesMobile released
- Replies: 6
- Views: 31235
Re: BayesBox and BayesMobile released
Thanks - that worked. Now I see there are "import cases" and "export cases" options. Can I create a file in Excel that I can then import into the app and if so, what type of file does it need to be? I tried tab delimited and comma delimited and they don't seem to be working (I ex...
- Tue Feb 21, 2023 10:32 pm
- Forum: GeNIe
- Topic: BayesBox and BayesMobile released
- Replies: 6
- Views: 31235
Re: BayesBox and BayesMobile released
Sorry if this is the wrong place to submit a question but how can I upload a Baysian network that I created using GeNIe Academic on my computer to Bayesmobile, which I just signed up for?