Wikipedia:Articles for deletion/Map-based controller


 * The following discussion is an archived debate of the proposed deletion of the article below. Please do not modify it. Subsequent comments should be made on the appropriate discussion page (such as the article's talk page or in a deletion review).  No further edits should be made to this page.

The result was no consensus. I'm leaning to a keep here but I'm going with no consensus. Please discuss article renaming and improvements on the talk page of the appropriate place. Thanks everyone. Missvain (talk) 16:34, 8 May 2021 (UTC)

Map-based controller

 * – ( View AfD View log )

The article has been unsourced since Feb 2007. After 15 years, I think a deletion discussion is appropriate. Coin945 (talk) 08:58, 13 April 2021 (UTC)
 * Note: This discussion has been included in the list of Engineering-related deletion discussions. Shellwood (talk) 09:00, 13 April 2021 (UTC)


 * Speedy keep, the nominator does not propose a valid WP:DEL-REASON. The nominator does not say which notability guideline that this article fails to meet. SailingInABathTub (talk) 10:18, 13 April 2021 (UTC)
 * Speedy keep all of Coin945's AfDs from today as a procedural matter. Coin945 has nominated 72 articles in a short space of time with a questionable rationale ("long-term lack of sourcing" -- see WP:NEXIST) and no indication of WP:BEFORE, with finding that a number of them can have their notability confirmed on literally the first page of Google results. This is not something the relatively small group of people who work AfD can realistically handle. Vaticidalprophet 11:01, 13 April 2021 (UTC)
 * Uncle G (talk) 15:20, 13 April 2021 (UTC)
 * Delete nothing here, even with the provided source, rises above dictionary defintion level. This is an encyclopedia, not a dictionary. We need to consider the use and history or a thing, not merely what it is, and this article does not do that.John Pack Lambert (talk) 19:47, 13 April 2021 (UTC)
 * Comment We now have a source. However GNG wants us to have multiple sources. Clearly this should not be speedy kept. It should be allowed to stand and given time so people can try and find more sources.John Pack Lambert (talk) 13:41, 14 April 2021 (UTC)
 * Question Is this related to a MAP sensor? Says it is used in internal combustion engines.--Rusf10 (talk) 20:49, 14 April 2021 (UTC)
 * Thanks for spotting this. No it's not related – this one is about map (mathematics) – but someone has apparently conflated the two. I removed the statement from the article. No such user (talk) 08:14, 15 April 2021 (UTC)
 * Redirect to Lookup table. I'm vaguely familiar with the control-systems field, and I don't think that a "map-based controller" is a "thing" in itself. Rather, it's a rather vague description of a "controller that has a lookup table", and many control system designs have one. Googling scholarly articles for "map-based control(ler)", it seems that most of those take the term as a descriptive phrase rather than a term of art, i.e. more or less a WP:DICDEF. It does not seem that the sources out there will permit writing a coherent article – the term is too vague to be useful. No such user (talk) 08:30, 15 April 2021 (UTC)
 * Keep but rename to map-based control. This properly belongs as a topic in control theory, not in the theory of lookup tables. Google Scholar has nearly 500 hits for "map-based control", 26 of them in the title. Google Books also has some relevant-looking hits, and there are many others for closely-related phrases such as "map-based ECMS" (one particular application of this technique with over 100 GS hits). There should be plenty of adequate sourcing among them, although the sourcing in the current stub looks adequate for a stub. Although there are also hits for "map-based controller", they are significantly less numerous. —David Eppstein (talk) 07:44, 16 April 2021 (UTC)
 * David Eppstein: but I honestly looked for in-depth coverage, and came up empty. As I said, most papers are devoted to particular applications and take the term for granted. I opened a couple of control theory textbooks at GBooks, expecting a section or a chapter on the topic (looking for "map" or "lookup"), but did not find anything. I'm not an expert in the field, granted, but if after 15 years of existence all that we can say is that there should be plenty of adequate sourcing among them without anyone finding it, we'd be better off without this article, without prejudice of a recreation. Yes, WP:ITEXISTS, but the current single sentence amounting to a dicdef is not useful for anyone. No such user (talk) 14:53, 16 April 2021 (UTC)
 * Keep and rename, to Lookup table-based control system. The term map-based controller is used almost exclusively to describe an Engine control unit, which is an application of a lookup table-based control system. This article uses the name of the former but describes it in the general terms of the latter. I can find WP:RS for both. There is obviously no point in adding lots of ECU references and ultimately duplicating that article. Here are a bunch of references, to show notability across a range of applications.

There is also a small amount of information on lookup table-based control systems already here: Lookup table. SailingInABathTub (talk) 20:17, 20 April 2021 (UTC)  Relisted to generate a more thorough discussion and clearer consensus.

Please add new comments below this notice. Thanks,  Sandstein   07:33, 21 April 2021 (UTC)  Relisted to generate a more thorough discussion and clearer consensus.

Please add new comments below this notice. Thanks, Kichu🐘 Need any help? 16:25, 30 April 2021 (UTC)


 * The above discussion is preserved as an archive of the debate. Please do not modify it. Subsequent comments should be made on the appropriate discussion page (such as the article's talk page or in a deletion review). No further edits should be made to this page.