All Questions

-5
votes
0answers
84 views

General problem concerning how a random variable is defined [on hold]

I have noted what appears to me to be confusion concerning what is and is not a random variable. For example, the Wikipedia entry states ...
2
votes
0answers
47 views

Are questions concerning deployment best practices on-topic?

I have a model built with time series data that I want to deploy. Sadly, I haven't found a lot of resources for this and I wanted to ask how to best approach this. The answer I am hoping for contains ...
12
votes
3answers
223 views

Shouldn't CV be a valid resource on how to implement non-trivial statistical models in different software?

Currently the Help Center > Asking states that questions are on-topic if they're about "statistical analysis, applied or theoretical", and whenever it's about programming "if it needs statistical ...
8
votes
1answer
140 views

Why is math.SE more responsive than Cross Validated?

I am just wondering why it takes more time to get a response in Cross Validated than in math.SE. Is there any specific reason?
0
votes
0answers
19 views

A school-specific CrossValidated site? [closed]

Is there any possibility that a CrossValidated site could be made for students and teachers at a specific school?
12
votes
3answers
258 views

This opinion-based question must be closed

The question What must someone know in statistics and machine learning? is not suitable for the stats.SE format because it is primarily opinion-based. I believe that much is obvious on its face. OP's ...
6
votes
0answers
154 views

Is there a way to solicit Cross Validated users to Commit to a proposed Operations Research and Analytics site (in Area 51)?

An "Operations Research and Analytics" site for Stack Exchange has been proposed https://area51.stackexchange.com/proposals/121892/operations-research-and-analytics, and is now in need of enough ...
16
votes
0answers
138 views

Are “stats-review” questions on-topic?

I'm dealing with a question on Stack Overflow that's really a "stats review" -- not technically a code review ("is this code OK?"), but "is this statistical approach OK?" This strikes me as ...
2
votes
0answers
36 views

Someone upvoting my old answers at a rate of 2-3 per day [duplicate]

Think I am experiencing a weird stalk-upvoting behaviour this week. Every day I see 2-3 of my old answers being upvoted. And the upvoting started from the lowest-score answers (that had 0 score) and ...
2
votes
1answer
51 views

Can we resolve the lack of consensus about editors adding the self-study tag?

I recently looked over my list of reviews for 'suggested edits'. I found a fair number of cases where the majority vote was to approve the addition of the self-study...
11
votes
1answer
180 views

How to improve the description and usage of the [machine-learning] tag?

I've noticed that a specific user has engaged in a campaign to add the tag machine-learning to a number of posts that do not mention machine learning, particularly posts about neural-networks. I don'...
10
votes
2answers
204 views

Should we remove the “datasets” close reason from the list?

Our recent proposal for adding one more close reason was declined. The reason was that we could re-use the "datasets" reason Questions about obtaining specific datasets are off-topic on Cross ...
2
votes
2answers
97 views

Question titles cannot be similar to those of a closed question

I wish to ask a question with a similar (or identical) title to a question that is closed. But I'm not able to do this. It seems to me that this is a mistake. If the previous question is closed ...
9
votes
1answer
198 views

Are “What is State of the Art for Machine Learning in X” on topic?

I often need to discern what the State of the Art (SOTA) is for certain Machine Learning Applications, which I currently ask on the Fast.ai forums. For example: How does Deep Learning deal with ...
2
votes
1answer
40 views

Who implemented and operates/maintains the user Community?

I'm talking about this fella. I know it's a bot (?), but how is it implemented, who maintains it?
0
votes
0answers
76 views

Why is this question of mine closed? Have I not improved it?

I'm wondering why this question of mine got closed? It was voted for On-Hold, by a moderator. He said I should improve it. I tried to improve it. It has 3 votes to reopen, and yet it got closed. ...
0
votes
0answers
61 views

Strange upsurge in up-voting of my questions [duplicate]

I have noticed an unexpected upsurge in the frequency by which my past questions are being upvoted. Whereas for most years of my membership I had maybe on average one or two upvotes in a week, since ...
9
votes
2answers
198 views

If OP asks for a software referral, and a referral *doesn't* exist, may we answer with the code they asked for?

If an OP asks for a R library recommendation (policy under debate in another meta thread, I realize), and no acceptable recommendation exists, what is the policy regarding writing and posting code ...
-5
votes
2answers
155 views

Is my closed question without merit?

As per the moderator my question isn't appropriate: Variance formula amplify outlier instead ignoring it! I am learning stats and I tried many resources over internet and books but I could not get ...
6
votes
1answer
130 views

Is this question mentioning Keras off-topic?

Image classification with large images in R keras OP mentions keras a couple time, but to their credit, they don't include code. I'd like to answer the question, but I wonder if I should comment ...
19
votes
0answers
219 views

Questions asking for statistical package recommendations: how do we differentiate in vs out of bounds for CV?

Recently, I asked for a recommendation for R packages that were capable of doing latent class analysis with mixed indicator types and were capable of doing latent class regression (i.e. treat the ...
4
votes
0answers
35 views

Can there be robot upvotes? [duplicate]

During each of the last five days, some of my answers - most being quite old - were upvoted within a short lapse of time. More precisely: 5, 3, 3, 3, 3 answers were upvoted within a few minutes for ...
3
votes
1answer
41 views

PSPP has no dedicated tag

A meta question: how come https://en.wikipedia.org/wiki/PSPP has no tag of its own? Its users are more command line driven than SPSS users which are more GUI driven....
6
votes
1answer
55 views

What does the red circle at the review queue pictogram mean?

I've recently gained acesses to some review queues, but most of the times there's something to be reviewed (gray dot beside the queue), there's no notification saying so, other times I see a red dot ...
11
votes
3answers
398 views

Is a sole answer with a down vote worse than no answer at all?

I was the only responder to a question recently. The question betrayed some misunderstandings on the part of the asker, and while my response was accurate, respectful and responsive, it also asked and ...
-10
votes
2answers
96 views

Questions on reinforcement learning topics would be better suited for AI Stack Exchange

I've notice that there are several unanswered questions on RL topics on this website. More specifically, about 1/3 (221/617) of the questions on RL on this website have not received an answer. This ...
0
votes
2answers
62 views

Can we fix up the “Should we trust statistics?” question

I was just writing up an answer to this question when it was decided that it should be closed. I understand why it is closed; the title alone makes it seem both a bit inflammatory and opinion based, ...
1
vote
0answers
25 views

How do you notify that you edited your question if was put _on hold_? [duplicate]

I asked a question and it turns out now is [on hold] because 'it's unclear what I asked' I edited hoping the unclear step was that but I am not sure if it was that. How do you notify the people who ...
11
votes
0answers
188 views

Canonical duplicate for “Why do predictions vary less than observations?”

Two recent questions: Regression - variance of predictions much lower than variance of target, which I voted to close as a duplicate of Regression predictions show far less variance than expected I ...
8
votes
1answer
88 views

Is there a “requests for reopen” queue here on meta?

Is there a "requests for reopen" queue here on meta? I can't find it view a Google search restricted to stats.meta.stackexchange.com nor via a search within meta.
10
votes
2answers
211 views

Extract software-specific default close reason

Almost four years ago there was a discussion on Meta that lead to formulating the "not about statistics" default close reason description as following: This question appears to be off-topic because ...
2
votes
1answer
73 views

Why do we close programming questions instead of migrating them to SO?

I have the (possibility wrong) impression that most programming questions are closed with the motivation "this is not about stats, but about programming, or etc.", rather than being migrated to SO. ...
4
votes
1answer
43 views

Why was this reinforcement learning question migrated to AI.SE?

I noticed that this question https://ai.stackexchange.com/questions/10196/why-does-is-make-sense-to-normalize-rewards-per-episode-in-reinforcement-learnin was migrated to AI.SE. I think that it is ...
2
votes
4answers
140 views

Community Promotion Ads — 2019

2019 is here! And with the new year, as usual, comes a new iteration of Community Promotion Ads! Let’s refresh these for the coming year :) What are Community Promotion Ads? Community Promotion Ads ...
22
votes
1answer
208 views

Best Practices for Searching CV

Over the course of almost nine years, we have amassed a body of good answers to many clearly stated questions: one of our site's principal goals. To be useful, though, these answers have to be ...
6
votes
1answer
117 views

artificial-intelligence tag

We have 178 questions tagged as artificial-intelligence. As you can guess, those questions do not seem to differ anyhow to the questions tagged as machine-learning. Should we map artificial-...
6
votes
1answer
173 views

Chaos Theory Thread Reopening Request (with a detailed answer ready)

I’m posting this thread reopening request here in keeping with the procedures outlined in the Meta post "How do you reopen a closed question?" I only learned fairly recently that my question “What are ...
1
vote
1answer
49 views

Creating a tag for sets

I find there are some questions about sets, but there isn't any tag about it. I would like to ask questions about them and learn more about them. Thus I thought about creating a new set tag to group ...
13
votes
0answers
179 views

2018: a year in moderation

It's New Year's Day in Stack Exchange land... A distinguishing characteristic of these sites is how they are moderated: We designed the Stack Exchange network engine to be mostly self-regulating, ...
12
votes
1answer
211 views

Do we have an authoritative answer on why validation accuracy can oscillate or even increase, when validation loss keeps increasing?

I know that accuracy is an improper scoring rule, thus it shouldn't be used to choose among classifiers. In particular, it should not be used to choose the best hyperparameters for a NN. However, ...
17
votes
1answer
288 views

Do you flag absolute nonsense questions?

Here: https://stats.stackexchange.com/questions/381309/cobbler-needed-right-now Is a "question" from a bot or a troll. Do we ever bypass "vote to close" and use the flag function if a Q is complete ...
3
votes
2answers
214 views

Why was my question deleted if It was not even on hold nor closed?

This was my question https://stats.stackexchange.com/questions/374062/least-square-estimators-for-beta-0-and-beta-1-and-uncorrelated-relation-b I am surprised that was deleted because there is ...
8
votes
2answers
153 views

Do we need a canonical thread about stock trading? What would it address?

I've noticed that stock trading is a prominent theme among reinforcement-learning and neural-networks and deep-learning questions. I think this is because (1) stock trading is an easy problem to ...
13
votes
2answers
305 views

Overlap with ai.stackexchange and datascience.stackexchange

I found that quite a few tags are present at each of these sites in the SE universe: Artificial Intelligence (AI) Data Science (DS) Cross Validated (CV) For example: reinforcement-learning (AI, DS, ...
4
votes
1answer
64 views

What is our stance on website recommendation questions?

What is our stance on website recommendation questions? Are they on-topic or off-topic? Assume that the website recommendation pertains to statistics / machine learning. Example: Is there any ...
3
votes
0answers
45 views

The tag [calibration]

From its excerpt: Calibration can refer to predicting an explanatory variable from an observation of the dependent variable; to adjustment of measurements to agree with value of some standard; to ...
9
votes
1answer
43 views

Filter for questions for review

I received the requests for reviewing the questions. Among them there are questions related to machine learning which I have not any knowledge. Is there any way (for example, modify my profile) such ...
8
votes
1answer
156 views

How to deal with paralysed questions where the Original Poster is inactive?

Example case The following question "Unable to resolve the following parameters:" jags error for Latent Class Model is a question that is more than two years old now. It has just been ...
6
votes
1answer
83 views

Modifying the title of duplicate questions

This question was recently closed as duplicate. I agree with this, but the title is now the title of the older question which is more restrictive than that of the new one (the old one is about two ...
9
votes
2answers
143 views

What to do with a question which is a duplicate of a question on Math SE

This question What is a distribution over functions? is a duplicate of https://math.stackexchange.com/questions/2297424/extending-a-distribution-over-samples-to-a-distribution-over-functions but I ...

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