11 votes
Accepted

What is the optimal length & level of detail of tag wiki excerpts?

Like @Scortchi and @whuber, I prefer shorter excerpts. (Besides aesthetic preference, I suspect they are more likely to be read.) I think excerpts should mostly proffer tag usage guidance, and that ...
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11 votes
Accepted

What's the tag "empirical" meant to convey?

Given the ambiguity of empirical, I propose we get an [empirical-bayes] tag, and then we can retag all those questions pertaining the subject (which I volunteer to ...
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  • 15.8k
9 votes
Accepted

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

My opinion is that machine-learning tag is borderline useless because it is too unspecific and too vacuous. It is not the only tag like that. For example we have fitting×600 and model×900, which are ...
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  • 94.9k
9 votes
Accepted

How should we deal with the [normal-distribution] vs. [normality] tags?

I mentioned this once before, a long time ago, but can't find it now. There is [supposed to be] a distinction between them. [normal-distribution] is about the ...
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7 votes
Accepted

What is the meaning of the [sgd] tag?

I wrote the following wiki excerpt: Stochastic gradient descent (SGD) is a variant of gradient descent where only a small subset ("mini-batch") of training examples is used to compute the gradient ...
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  • 94.9k
7 votes
Accepted

Should links be added to tag wiki excerpts?

It seems to me that links are best not included in excerpts (of course, they do make sense in a full wiki). I think they should not be included for the following reasons: Links don't work in ...
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7 votes

What is the optimal length & level of detail of tag wiki excerpts?

I'd go for the more concise the better, to increase the chance people actually read the tag wiki excerpt before using the tag & perhaps therefore use it correctly. The usage guidance, or tag ...
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6 votes

What is the optimal length & level of detail of tag wiki excerpts?

The purpose of a Wiki excerpt is not to supply as full and complete a definition as you can. It is to help people apply tags appropriately. To be effective, the excerpt therefore should: Be as ...
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  • 290k
6 votes
Accepted

Can I find excerpt/Wiki of a tag that is now a synonym of another tag?

It's tricky but doable. Go to http://stats.stackexchange.com/tags and type "arma". You will see the original arma tag with its own question count and excerpt (this is because it was never merged into ...
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  • 94.9k
6 votes

How should we deal with the [normal-distribution] vs. [normality] tags?

That makes sense to me. Even if someone could up with some way to distinguish these, I think there would be a ton of confusion about which to use where and a lot of error in their use. So I favor ...
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  • 94.7k
5 votes
Accepted

Usage guidance for software-specific tags

It is a good practice for the stackexchange communities to explain the tags by how they are used and not by what the specific term in the tag means. See for instance the points 2 to 4 in the list in ...
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5 votes
Accepted

Tags for zero-inflated vs. hurdle vs. point-mass-at-zero models

Thank you for the good discussion so far, and thanks to @amoeba for pointing me to it! I agree with many points raised so far and just want to share a few personal experiences with this topic. ...
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5 votes
Accepted

Wiki excerpt of the [algorithms] tag

This is a bad wiki excerpt; it is imprecise and too lengthy (see What is the optimal length & level of detail of tag wiki excerpts?) Wikipedia defines algorithm as "an unambiguous specification ...
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  • 94.9k
5 votes
Accepted

The [error] tag and its wiki

To incorporate some of @amoeba's suggestions, how about: The error of an estimate or prediction is its deviation from the true value, which may be unobservable (e.g., regression parameters), or ...
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4 votes

What is the optimal length & level of detail of tag wiki excerpts?

I will post my own answer so that we could have some sort of voting here. I am obviously for detailed excerpts. After my post, @whuber edited all excerpts that I mentioned to shorten them drastically....
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  • 94.9k
4 votes
Accepted

Meta CV tag - [statistics] vs [site-statistics]

I have manually retagged 2 Qs with statistics tag and 1 additional Q with probability into on-topic. The remaining 8 threads with statistics are all about site statistics, so it can now be renamed ...
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  • 94.9k
4 votes
Accepted

Should we have usage guidelines for the meta-tag "references" (and other meta-tags)?

About references: I included a link to the most upvoted answer in Should all "book recommendation" questions be classified as community wiki? in the tag wiki as additional guidance. @...
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  • 3,070
4 votes
Accepted

Differences between [joint-distribution] and [bivariate]?

The bivariate tag is a proper subset of joint-distribution. I have updated wiki excerpts as follows: Joint probability distribution of several random variables gives the probability that all of ...
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  • 94.9k
4 votes

Tags for zero-inflated vs. hurdle vs. point-mass-at-zero models

I usually agree with @gung on tag issues, but this time I am not convinced by his answer. I want to make two points. I don't see how we can meaningfully separate tags for zero-inflated count models, ...
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  • 94.9k
3 votes
Accepted

Disambiguate tag excerpts for [d-prime], [sensitivity] and [sensitivity-analysis]

I propose: We create a new tag [sensitivity-specificity], as @amoeba suggested. We make the existing tags, sensitivity and specificity synonyms of this and ...
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3 votes

Wiki excerpt for [sensitivity-analysis] tag?

I tried to modify the current excerpt in the general direction outlined by @AdamO, but keeping it easy to grasp. My understanding of what "sensitivity analysis" is, follows @gung's answer. ...
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  • 94.9k
3 votes
Accepted

What to do about [parameter-optimization] tag?

This seems really obvious. I have made [parameter-optimization] a synonym of [optimization], and I merged them.
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3 votes
Accepted

Definition of [indicator-variables] tag?

In the meantime, this was extensively discussed in the answers and comments in Tags around categorical data coding / representation and the outcome was as follows: Master tag categorical-encoding has ...
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  • 94.9k
3 votes

Meta CV tag - [statistics] vs [site-statistics]

I think it's a great idea, and we could make [statistics] a synonym. If there's some confusion about which site is referenced, you could use ...
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3 votes
Accepted

Tags that have broad concept but also address a specific software function

This Q was mentioned in a recent discussion and I see that it is unanswered, so I thought I would answer. What can be done when the tag name represents both a function of a statistical software, ...
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  • 94.9k
2 votes
Accepted

Display tag excerpt on hover when editing questions?

I didn't really find this thread on SO useful. Maybe the feature has been discontinued and/or because the thread is outdated (2014). However, I have found a temporary solution, which might help ...
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  • 2,249
2 votes
Accepted

Quasi-synonyms for quasi-tags

Both synonyms were created by @gung some time ago.
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  • 94.9k
2 votes

Wiki excerpt for [sensitivity-analysis] tag?

I would say sensitivity analysis is... a set of non-primary statistical analyses intended to verify the accuracy and generalizability of estimates and inference derived from a primary analysis and ...
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  • 53.2k
1 vote

Usage guidance for software-specific tags

I might take it a step further and prevent a question from being posted if it only involves software tags. While it might not be possible for Stack Exchange to prevent a question from being posted if ...
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  • 31.9k
1 vote

Wiki excerpt for [sensitivity-analysis] tag?

Let me start by grounding this. In a scientific situation, people typically have theories about important relationships between variables. These theories are, however, incomplete in some way, or are ...
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