Questions tagged [tags]

Questions, concerns, or suggestions about a tag or about the way tags are used on our site.

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9
votes
7answers
421 views

Should I add the self-study tag to a question that is copy-pasted from a book?

This question was asked earlier today https://stats.stackexchange.com/questions/239640/simulation-problem-in-r#comment455733_239640. The text is copy-pasted from an Exercise from Introduction to ...
5
votes
1answer
129 views

Can we do something about the confusing/ambiguous [random-effects-model] and [fixed-effects-model] tags?

I want to discuss the following three tags: mixed-model (2000+), random-effects-model (580) and fixed-effects-model (400). There is a well-known terminological ambiguity between econometrics and ...
7
votes
2answers
132 views

VERY ambiguous [population-average] tag

Have you ever wondered what population-average is about..? If not, check its info page Population average model assesses the association between X and Y based on averaging over the random effects,...
8
votes
1answer
184 views

Is Dirac delta worth its own tag?

Dirac delta is pretty basic concept and we have multiple questions mentioning it. It also causes many confusion, so it is likely to provoke new questions among those who first encounter it. Maybe we ...
12
votes
4answers
277 views

What is the exact meaning of the [self-study] tag? Should we consider renaming it?

Our self-study tag is defined as: A routine question from a textbook, course, or test used for a class or self-study. This community's policy is to "provide helpful hints" for self-study questions....
-2
votes
1answer
43 views

Why can't I put a tag on my answer that is different than the tag in the question? [duplicate]

What is the way to add a tag in an answer, possibly regarding a tool, approach, or such, but something the original asker did not envision, without editing the asked question? I'm presuming the ...
0
votes
1answer
48 views

Should we get rid of all the tags that were used only just a few times?

Simple query shows that we have lots of tags that were used only once, twice, or just a few times. Such tags are easy to burinate and re-tagging should not flood the main page if it would not be done ...
3
votes
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 ...
13
votes
1answer
126 views

Should we have [birthday-paradox] tag?

Currently there are approximately 13 mentioning birthday paradox and another 22 mentioning birthday problem (I guess there could be more). In most cases it is the main topic of the questions. Should ...
7
votes
1answer
82 views

Is the tag [sample-variance] needed?

So we have sample-variance, with 6 questions tagged. Three also have variance tagged, and all the questions were posted this year. Simple question, is it desirable? There's also tag estimation for ...
6
votes
2answers
323 views

A pair of ambiguous tags: [nested] and [non-nested]

We have nested with 216 Qs and also non-nested with 22 Qs. Neither tag has a wiki excerpt. Both are terribly ambiguous. AFAIK, "nested" can refer (and this tag is being used to refer) to various ...
11
votes
3answers
460 views

Is [tikhonov-regularization] really a synonym for [ridge regression]?

I am new, so may have a biased sample, but it seems a lot of the discussion on "regularized regression" focuses on methods that penalize some norm of the parameter (coefficient) vector. For example in ...
4
votes
1answer
132 views

Should we make [updating] synonym for [bayesian]?

I just noticed that we have updating tag with 18 questions - all about Bayesian updating. Do we really need a separate tag? Maybe we should merge it with bayesian?
3
votes
1answer
288 views

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

I wonder if joint-distribution and bivariate, have been used interchangeably on Cross Validated? [joint-distribution] was used in 255 questions; it has an excerpt and a simple wiki. [bivariate] was ...
12
votes
1answer
151 views

Is it useful to have separate tags for lme4, lmer, glmer, nlmer, nlme, and lme?

lme4 (402) is an R package that has lmer (498), glmer (168), and nlmer (10) functions. nlme (119) is an R package that has lme (196) as a function. Both packages fit [generalized] linear (and ...
12
votes
7answers
161 views

When re-tagging old threads, how many should one do at once?

Sometimes we decide to take care of confusing tags and this involves manual re-tagging. We all agree that one should only start mass re-tagging old threads after it has been discussed & approved ...
11
votes
1answer
176 views

Ambiguous [permutation] tag

A week ago @JuhoKokkala raised the following Meta question: Ambiguous [combination] tag -- and the consesus was that [combination] tag should be entirely removed and replaced by [combinatorics] ...
5
votes
1answer
142 views

Should we have [bayesian-vs-frequentist] tag?

We have huge number of questions about Bayesian vs frequentist approaches (913 in fast search), so maybe we should have separate tag for it..? I know that we already have ...
10
votes
1answer
257 views

Ambiguous [combination] tag

See combination (113 threads). Some of these are combinatorics questions about counting combinations, some are about linear combinations, combining distributions, combining this, combining that... The ...
10
votes
2answers
109 views

Let's merge/synonymize `arch` and `garch` tags

I suggest merging arch and garch tags, or making arch a synonym of garch (I am not sure how I should formulate this correctly). I don't see sufficient conceptual difference between ARCH and GARCH ...
11
votes
7answers
169 views

Weights and everything weighted

@amoeba and I had a lengthy (and hence not particularly productive, if the sheer length is any indication of the proximity to consensus) discussion of tag synonyms in the main "Tag synonyms candidates"...
8
votes
1answer
183 views

Is [media] tag just misspelled [median]?

We have media tag (11 questions), am I missing something, or is it just misspelled median..? EDIT: In obvious cases I started re-tagging the questions.
5
votes
1answer
65 views

What is the [l-moment] tag for?

I noticed today that we have a tag for l-moments without a description. For once, this isn't my fault. I hope that by bringing it to the attention of meta readers, we could create one. (I don't know ...
12
votes
1answer
146 views

Burninate the “dynamic” tag

I just edited the online tag and noted some synonyms for "online" algorithms. Among them are "dynamic" algorithms, so I looked whether we have a dynamic tag or similar and whether making it a synonym ...
9
votes
1answer
97 views

“Risk” tag: no Wiki, unclear usage

The tag risk has no Wiki and seems to be used for several different topics, e.g. Bayesian risk risk in finance applications such as Value at Risk (VaR) epidemiology and accidents (human health risks)...
7
votes
0answers
95 views

Tag proposal: [long-memory]

Being generically interested in long-memory processes (or long-range dependence as it is also called), I wanted to have a look at past questions about this topic. I've noticed, however, that there is ...
4
votes
0answers
24 views

What are useful differences (if any) between [algorithms], [numerics], and [computational-statistics] tags?

I have just found myself adding these three tags (numerics, algorithms, and computational-statistics) to the following question (noticing an offered bounty): What algorithm is used in linear ...
8
votes
1answer
76 views

Clarifying the [sem] tag for simultaneous equation models?

The sem tag is described as being for structural equation modeling, but a proportion (my hunch: 25%) of its use is for (econometric) simultaneous equation models. Is it worth clarifying, or splitting ...
14
votes
1answer
217 views

When is traffic slow on CrossValidated?

A frequent recommendation (e.g., here and here) for retagging or otherwise editing multiple questions is to do it when traffic is slow. Then edit-bumped posts will only push older questions off the ...
6
votes
1answer
146 views

Is [optunity] a valid tag?

There are 3 questions tagged optunity: https://stats.stackexchange.com/questions/tagged/optunity What is this for? Is 'optunity' even a word? Should it be cleaned up?
12
votes
1answer
176 views

Tag proposal: [phylogeny]

Phylogenetic comparative methods (PCMs) are a branch of statistics focused on modeling evolutionary data (i.e., data on species' characteristics and phylogenetic relationships). I have found 24 ...
9
votes
4answers
102 views

Tag proposal: [cronbachs-alpha]

Cronbach's $\alpha$ is an estimate of the reliability of a psychometric test. It's admittedly rather field-specific, and I don't think many people outside of psychology or psychometrics have ever ...
5
votes
1answer
183 views

The [error] tag and its wiki

The error tag currently has the following tag wiki excerpt: The error of an observed value is the deviation of the observed value from the (unobservable) true function value. Do NOT use this tag ...
6
votes
1answer
229 views

New tag MAE (related to MAD)

In forecasting, there is a very common point forecast accuracy measure, the Mean Absolute Error (MAE) or Mean Absolute Deviation (MAD), which simply calculates the mean absolute difference between ...
-2
votes
1answer
116 views

Do we need both [forecasting] and [prediction] tags?

I do not see a clear distinction between forecasting and prediction tags. Should they be made synonyms? Or should the distinction be made clearer (e.g. by expanding the currently very brief ...
7
votes
1answer
178 views

What are the [scoring] and [scores] tags about?

I just noticed that we have scoring tag -- what is it about? It does not have description. It's content is pretty chaotic: from Good books/papers on credit scoring (my initial guess for what is it ...
14
votes
4answers
542 views

Tag-candidates for removal

We already have a thread for proposing candidates for tag synonyms, but there doesn't seem to be a similar thread for proposing tags for deletion. Similarly to the "synonym" thread, let's use this one ...
4
votes
1answer
66 views

What is the difference between our hypothesis-testing, statistical-significance, and p-value tags? Do they need to stay separate?

Two very popular tags are hypothesis-testing (3.4k questions) and statistical-significance (2.4k questions). These two concepts are very much related, and whenever I happen to edit a question that ...
4
votes
1answer
65 views

Is it okay to add the bayesian tag if my answer is Bayesian? [duplicate]

I have given Bayesian answers to questions that do not have the bayesian tag. Sometimes my Bayesian answer is accepted and there's not tag to lead anyone there. Is it ever okay to add the tag? Do I ...
10
votes
1answer
117 views

Should we have a tag for the coupon collector's problem?

The coupon collector's problem is a well-known example in probability. Searching the site for coupon is:question suggests we have about a dozen posts on it, but ...
8
votes
1answer
190 views

What should we do with the ambiguous [Pearson] tag?

Our pearson tag (220 questions) is ambiguous and seems to be used inconsistently: it can refer either to Pearson's correlation or to Pearson's chi-squared goodness of fit test. I think it should be ...
17
votes
2answers
347 views

Rank-related tags are an enormous mess

We have the following rank-related tags: mann-whitney-u-test (271) -- ranksum test wilcoxon (297) -- used for ranksum and for signed-rank signed-rank-test (37) sign-test (21) spearman (134) spearman-...
1
vote
2answers
97 views

Renaming convolution tag to conv-neural-network, or creating a new conv-neural-network tag

How about renaming the convolution tag to conv-neural-network, or creating a new [conv-neural-network] or [cnn] tag? Most ...
11
votes
2answers
190 views

Do we need [basic-concepts] tag?

I am wondering if we need the basic-concepts tag (221 threads). It looks like an archetypal meta tag to me, and the SE policy is to not tolerate meta tags. We do have some particular exceptions to ...
6
votes
4answers
518 views

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

I find tag wiki excerpts extremely useful, much more so than full wikis (I doubt that many people ever come across full wikis because SE design buries them quite deep). When I write wiki excerpts I ...
10
votes
2answers
339 views

Why do Cross Validated and Math SE have different policies for homework questions?

Why is it that CrossValidated requires homework or the like to be tagged w/ self-study, but Math SE did away w/ homework tag a long time ago? Why don't the arguments for no more homework tag in Math ...
7
votes
1answer
101 views

Are [causality] and [causal-inference] tags the same?

There are two tags causality and causal-inference that seem identical or at least closely related -- aren't they? Reviewing the posts tagged by both tags shows that there is not much difference ...
6
votes
3answers
193 views

Should we do something with [wlln] tag?

I just noticed that there is wlln. Could you guess what does it stand for..? It has only 11 questions while the topic is pretty broad -- so I guess it is probably used less often than needed. Its name ...
5
votes
2answers
207 views

What's the best thing to do with the [student's-t] tag now?

I've been very slow about it, but in relation to this question: Issue with [students-t] tag, I have finally re-tagged them all (bar the last couple which I will take care of after a suitable interval ...
8
votes
1answer
192 views

Somebody has accidentally created [correlation-matrix] tag; what to do with it?

Somebody has just created correlation-matrix tag by posting this question: Is every correlation matrix positive definite? Previously this tag did not exist, but of course there is well over a hundred ...