Questions tagged [questions]

For questions regarding the nature of a "question" on Cross Validated; e.g. how to ask, whether specific questions are appropriate, etc.

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9
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1answer
106 views

What should the description for our general chat room be?

Our general chat room is Ten fold. We sometimes describe it as being, "just for gossip and grumbles". People occasionally ask substantive statistics or machine learning questions there, and we often ...
5
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1answer
110 views

Is Cross Validated an appropriate place to ask for examples of meta-analysis done well?

I'm teaching myself how to do meta-analysis, and as a beginner to the subject I would like to read journal article examples of meta-analysis done well. It's easy enough to find examples of meta-...
1
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1answer
75 views

Asking about which hypothesis testing technique? - My question is on hold

How should my question be rephrased such that you will reopen it? 3+ dependent variables, which test for measuring dependency? I'm essentially trying to figure out how to show the relationship ...
6
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1answer
89 views

Why is something flagged as “opinion”?

I entered the following question: How do you calculate an exact two-tailed p-value using binomial distribution? The system generated a warning that this "appears to be an opinion" and "is likely to be ...
11
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2answers
335 views

Why is my question about replicating a figure from Hastie et al. not appropriate?

I asked this question earlier today but was quickly put on hold with a generic comment. I can only assume the question is on hold as it has been interpreted as being a coding question. It is clear ...
9
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2answers
256 views

Would this dice question be on topic if it were posted or migrated here?

RPG.SE is currently having a bit of a vigorous discussion about this question about dice rolling (meta thereupon), in which this stack was brought up as a potential migrate target. There is a dice ...
2
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2answers
100 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 ...
6
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1answer
140 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 ...
-10
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2answers
103 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 ...
1
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0answers
26 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 ...
12
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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, ...
3
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2answers
216 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 ...
4
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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 ...
9
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2answers
275 views

I get surges of upvotes, and they are lumpy in time. Is this because the site is surfacing my questions all at once, or do I have a stalker/superfan?

Question is in the title. This morning I wake up to 40 more points, on various questions that I had asked since I started using this site years ago. Yesterday I had something similar. Is the site's ...
6
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1answer
135 views

Should I ask this mathematical statistics question here or on math.se?

I would like to ask the following question: if $M$ is a $m\times n$ constant matrix and $\eta\sim\mathcal{N}(0,I)$, then does $$\mathbf{E}_{\eta\sim\mathcal{N}}\left[\frac{\lVert M\eta\rVert}{\...
14
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2answers
346 views

Is there a generic question to which we can redirect questions of the type “why does my neural network not generalize well?”

Thanks to Sycorax, we have an excellent question which can be used to close as duplicate (most of) those questions about neural networks which can't overfit the training set: What should I do when my ...
0
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1answer
65 views

How to edit my question on RBF kernel in Python so that it gets reopened?

Can someone advise on how to rephrase this question to be acceptable? How to tune `gamma` parameter of precomputed RBF kernel in Python using `gridsearchCV` and `pipeline`?
5
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1answer
117 views

Finding question with an interesting comment about ReLU activation functions?

A few months ago, I read an interesting comment by user shimao to a question, which linked to a YouTube video where some lecturer (a mathematician, I think) showed how ReLU activations don't solve the ...
30
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3answers
2k views

What's the best way to answer “my neural network doesn't work, please fix” questions?

I've observed that we tend to get a number of questions in the vein of "I'm training a neural network and the model is not effective (for some definition of effective). Please help me fix it." (I can ...
0
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0answers
48 views

Finding a question similar to this one

I recall seeing a question on VAEs last week, similar to this one but more verbose: Variational Autoencoder VS Normal Autoencoder I remember the term "understand the basic math behind [them/VAE]" so ...
9
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1answer
285 views

Is CV the right site for this question?

I just asked the following question: What are attention mechanism exactly? It seems that attention-related questions haven't received answers on this site. Is this the right site for these questions?...
1
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0answers
69 views

How to improve the following question

A new user asked this question: Neural Network for Foreign Exchange Prediction In my opinion it's quite good as a first question, but it's hard to answer. I'd like the help the OP improve it. ...
10
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2answers
112 views

Is it on topic to ask a question looking for authoritative/canonical references to read on a topic?

I am trying to learn about non-response/dropout bias—and how to correct for it. I do not know this area well. Is it on-topic to ask for authoritative/canonical/highly-cited/classic references on this ...
8
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1answer
146 views

What to do if we see cross-posting

This question fitting a distribution to survival curve in R has been posted as an exact duplicate on Stack Overflow https://stackoverflow.com/questions/48137772/fitting-a-distribution-to-survival-...
4
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1answer
46 views

How do questions actually convert to community wikis?

I stumbled upon this question which, aside from being in need of some cleaning up, is not "answerable" as much as it's an open community wiki. Common statistical tests as linear models How do users ...
13
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3answers
271 views

Should we expect some effort to study statistical issues before posting questions?

I'm seeing a steady worsening of statistical preparation on the part of those posing questions to the site. If I wanted to start an engineering project, I think I would talk to an engineer before ...
5
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0answers
77 views

Should my two part question be asked separately?

I've asked a question about error analysis and included a follow up question which is strongly related to the first one. I'm unsure whether it would be best to post them as separate questions. I'm ...
3
votes
1answer
106 views

Creation of “Topics” Instead of Questions, for Linking with Course Notes

For background details see http ://www.fharrell.com/2017/08/integrating-audio-video-and-discussion.html I am interested in using stats.stackexchange as a place to ...
5
votes
1answer
53 views

What happens to reputation if an upvoted answer is moved to another SE site?

As per object: if a question which received some upvotes is moved to another SE site, what happens to the OP reputation? Does her/his reputation on CV decreases, and the reputation on the other site ...
-3
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1answer
187 views

'Cultural differences' between statsSE and mathSE

Notwithstanding that both statsSE and mathSE are both stackexchange sites, and share a similar subject matter, often attended by the same or similar groups of people, I have noticed what I would ...
12
votes
2answers
132 views

What to do about very different questions with very similar answers?

I have noticed several times that some questions are flagged by some as "duplicate" questions when the questions appear very different but have similar answers. The questions are asking about very ...
7
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2answers
259 views

Celebrate 100,000 questions in Sydney, Australia?

How should we celebrate reaching 100,000 questions? I'm not sure this'd even work... But let's see. I nominate 22nd April Saturday, 3pm gather for coffee breaks in Sydney CBD. Let's me briefly ...
20
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2answers
456 views

How should we celebrate reaching 100,000 questions?

We currently have over 99,000 questions asked. I think we should celebrate when we reach the 100,000 mark.
5
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1answer
53 views

How to offer a bounty on a question with unsatisfactory answers?

I am very interested in a straightforward definition of the concept "positive regression dependency on each one of a subset" (with straightforward example a plus) as described by Benjamini and ...
8
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2answers
85 views

Can I ask for a recommended analysis technique?

I don't know much about statistics, and I don't know enough to know e.g. terms to search for in a web search. However, I have a specific data set, and a list of goals I'd like to achieve in an ...
28
votes
2answers
546 views

Are very elementary questions off topic on CrossValidated?

In a thread on the main site someone said very elementary questions are off topic It looks like someone upvoted his comment so maybe he's right. Around that same time @gung told me to be cautious ...
6
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2answers
518 views

Why do people downvote old questions and answers?

This applies to many of us who have been members of this site for many years. Some of my old questions and answers get reviewed periodically. This is fine. Members have a right to upvote or ...
15
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2answers
252 views

Should new users be allowed to provide questions similar to others?

Recently on CrossValidated I have found that new members may not have studied all the rules prior to asking their first question. I find that moderators and other users will quickly vote to close ...
6
votes
1answer
52 views

Possible timestamp error of posted question?

See this question, which according to OP was posted in october 2016: Systematic Component of Variation, and its comment thread: I put the question in October 2016. There is something wrong in the ...
9
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1answer
112 views

Soliciting feedback vs asking a question

Is it ever appropriate to share one's thoughts on a topic as a way to garner constructive feedback and opinions from the community instead of asking a direct question, or is there another place for ...
4
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1answer
92 views

Can I cross-post a question which answer I'm not satisfied with?

For Gaussian distribution matrix $X$, find $E(F(X))$ and $\sigma(X)$ s.t. $F=\sum f(x_i)P_i,$ given $E(f_i(x_i)),\sigma(f_i(x_i)) \forall i$ While jbowman answers my question, I am unsatisfied. I ...
7
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1answer
230 views

What is the relationship between some measure of reputation on our site and statistical prowess?

There is first a question within this question, and, that is "Where should I be posing the question?" There are certainly people on this site with marvelous minds. The second question, the primary ...
6
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2answers
60 views

Is there a place where I can ask “how do I …” for formatting questions

I am often asking myself "how do I do ..." with formatting, but what I am trying to do is (afaict) not in the formatting help. Where do I go with questions that are formatting related and not stats ...
16
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2answers
277 views

How many questions are too many?

I'm in the process of learning about neural networks. I'm the kind of person who wants to pull them apart and glue them back together to really get a solid idea of how all the pieces work. I'm doing ...
5
votes
1answer
67 views

What is a well received question?

The criterion for 'curious' badge is to post 5 'well received' questions. Although the answer to this is probably quite simple, still, I do know what well-received means in practice.
8
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1answer
35 views

Best way to migrate a question?

I asked this question a couple of weeks ago: Defining the normal distribution It hasn't received much attention and I've just become aware that there's a 'Math Educators' Beta SE where it would ...
3
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0answers
39 views

Separate questions for tag proposal/change/removal or using single threads? [duplicate]

I have a meta-meta question: should we use single aggregate thread with one answer per tag (e.g. here), where whole discussion happens in comments, or one question per tag where the discussion ...
8
votes
1answer
135 views

Can I ask a question again, but with a different point of view?

I approached a question the wrong way and I would like to ask it again from a different point of view, but it already has an answer. I asked this question: Estimating quantiles with linear ...
6
votes
2answers
225 views

Are questions such as “What are important topics in machine learning right now?” acceptable on this forum?

I've posted two questions on the main website asking about important topics in machine learning. (Important topics in machine learning right now & Subjects in machine learning) They have both been ...
5
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0answers
140 views

How to ask questions new learners would not easily understand but experienced persons feel trivial?

Sometimes I feel I have some questions that people that just learned from book will not understand what I was asking, but some really good people feel it is no need to explain. How can I ask those ...