Why do i get Kendall-Tau = 1 despite the rankings are not similar? And why do i get the same standard error for every part worth utility? Can someone help?
Cards
Respondents data
Syntax
Outputs
Related
I am currently attempting to record and graph coherence scores for various topic number values in order to determine the number of topics that would be best for my corpus. After several trials using u_mass, the data proved to be inconclusive since the scores don't plateau around a specific topic number. I'm aware that CV ranges from -14 to 14 when using u_mass, however my values range from -2 to -1 and selecting an accurate topic number is not possible. Due to these issues, I attempted to use c_v instead of u_mass but I receive the following error:
An attempt has been made to start a new process before the
current process has finished its bootstrapping phase.
This probably means that you are not using fork to start your
child processes and you have forgotten to use the proper idiom
in the main module:
This is my code for computing the coherence value
cm = CoherenceModel(model=ldamodel, texts=texts, dictionary=dictionary,coherence='c_v')
print("THIS IS THE COHERENCE VALUE ")
coherence = cm.get_coherence()
print(coherence)
If anyone could provide assistance in resolving my issues for either c_v or u_mass, it would be greatly appreciated! Thank you!
Did somebody work on this exercise ? It is a way to estimate transaction in JUNE 2017.
https://codelabs.developers.google.com/codelabs/bqml-intro/index.html#0
When we compare orders JUNE 2017 prediction (step6) versus reality (meaning what we have in BQ), the difference is quite important (more than 50%) - do you know why?
Comparing a single datapoint may not be the best way to evaluate the model performance.
Please start with reviewing the output of ML.Evaluate to understand how the model is behaving overall.
As mentioned by #girishkumar, comparing a single datapoint may not be the best way to evaluate the model performance; at the same time, please consider that the purpose of the codelab is to show how BigQuery ML works.
However, I replicated the lab and observed that if you remove the limit of the SQL statement in the step 4 you got better results in the model evaluation step.
By last, if you are interested in learning how to use this tool, you can try the following tutorials.
I have some questions in my mind related to wrk2 benchmark tool. I did a lot of search on them and did not find answers related to them. If you have little understanding related to them then please help me.
What "count" column represents in Detailed Percentile spectrum? example Did they show the total number of requests whose latency is within "value" (column name) range? Correct me if i am wrong.
What "latency(i)" and "requests" represent in done function provided by wr2 and wrk? and How can I get that values? done_function
How can I get the total number of requests generated per minute and their latencies? Does "latency(i)" and "requests" give me some information about them?
What "-B (batch latency)" option in wrk does? My output remains the same whether i use this option or not. batch
In wrk2 readme.md, i didn't understand these lines. can you please explain that.
I have been trying to get my hands dirty with Information Retrieval.My professor gave us this problem to solve, but I can't get my way around it. The matrix given, if it is a distance matrix, the diagonal elements should all be 0. But in the table, they're given as 1. The other entries are also less than 1. How is this possible? Can someone please explain?
Please see question 5.c. I could not enter the table manually and apologize for that.
In every similarity measurement, 1 means totally similar and 0 means there is no similarity between documents.
I'm having some issues regarding a conjoint analysis. Excuse me if some of the terms I use are wrong, but it has been some time since I last worked with SPSS - and my teacher was Danish.
Task object
I am to make a series of concept travelpackages (attributes and attribute notes/levels).
This far I've got things under control - I've reduced the number of packages from 81 to 9, with the help of 'orthogonal' design.
These 9 packages have been rated by some people (1-10), on a questionnaire.
Then I've been asked to write a syntax which evaluates my conjoint plan:
CONJOINT PLAN= 'C:\Users\MYNAME\DROBBOXFOLDER\Conjoint_cards.SAV'
/DATA='C:\Users\MYNAME\DROBBOXFOLDER\Respondents.SAV'
/SCORE=Card_1 TO Card_9
/SUBJECT=ID
/FACTORS= SMS Minutter Data Tryghed
/PRINT=ALL
/PLOT=ALL.
However I keep getting this error:
SUBJECT SUBCOMMAND -- Subject variable is not on data file.
Execution of this command stops.
At this point I've been to the dark pages of Google and back for an answer to what I am doing wrong, but nothing so far. The answer is probably staring me in the face. But I will appreciate any help or pointers as to what I'm doing wrong.
Problem solved:
So apparently one shouldn't follow a guide to the letter. My datafile didn't contain a ID, so removing this from my syntax solved the problem.