Add DDC/MDC and LC to tag pages

I'd like to see the standard classification systems added to tag pages, based on what the books tagged are classified as. Sometimes it will produce a nice simple dominant tag--if you're looking for books about depression, MDC would give you 616.85270092. Sometimes it won't, and LT could point out the top three and percentages (of books that have been so classified.) With MDC, you can easily do levels: "80% 499.992; 10% 8xx", for example.

I get 973.916 as the Dewey code for depression.

Lots of tags, including that one, have several different meanings. More useful would be to go to the classifications page of a book that fits the meaning you are looking for.

>2 MarthaJeanne: Except books under 973.916 don't seem to be tagged depression. This would provide an easy way to find a correspondence between the tag system and standard classification systems, and see the several different meanings of the tags in a concrete way.

>3 prosfilaes: wait do you mean depression as a mental state or as an economic thing?

I can kind of see how this would be interesting - shoe the classifications most frequently used with the tag - but trying to offer a definitive one is a barrel of complications

>4 keristars: Don't forget the geology term. Meteorology has depressions, too. Many tags have multiple possible meanings, and there is no assurance that works will have clear classifications.

>5 MarthaJeanne: Yep, I almost added that but couldn't remember "meteorology"!

I would think a sub-page for tags showing common genre, LCS, MDS, etc, could be interesting. Perhaps arranged in charts to show that they aren't definitive or don't apply to all the books tagged such.

As always with tags, it would get into processing needs and stale data. And I'm not sure it would be as useful as just looking at the classification details on the top tagged books.

You would also get very peculiar results for tags like 'box 5' or '@Maine' and 'Read with Jenna'. There may be tags that really do point to one classification, but most don't.

I once made a list of some of the things other users are tagging their books with. LCS and MDS didn't make the list, but that's probably my fault.
Enjoy and comment if you like :-)

What are others using tags for?

Author
   British author
   Robert Graves
   The author is an asshole
   Writ by a Brit
Awards
   Hawthornden prize
Categories / Genres
   Anthropomorphic fiction
   Biography
   Biographical fiction
   Bildungsroman
   Crime
   Fiction
   Historical fiction
   Juvenile fiction
   Modern literature
   Speculative fiction
   Victorian fiction
Challenges
   Take It or Leave It (TIOLI) https://wiki.librarything.com/index.php/TIOLI_FAQS
Characters
   Animals
   Claudius
   Mowgli
   Poirot
   Snakes
   Snape Severus (Fictitious character)
Cover
   Adult cover
Description of condition
   Dog chewed corner pages
   Fine
   Leather bound
   Unusually fine
Description of content
   Anthropomorphism
   Police procedural
   Science
   Unusual pets
Edition
   Easton leatherbound 1st edition
   English edition
   First edition
Intended age group
   Childrens book
   First grade
   Middle grade
Is it good?
   abandoned-as-hopeless
   abandoned-did-not-finish
   abandoned-in-disgust
   Books I can blame on my wife
   Books_i_could-ve_happily_never_read
   Books-i-did-not-like-one-bit
   Books i didn't enjoy
   dnf-never-pick-up-again
   stars_5
Keywords
   2011 adventure animals crime dogs ebook fantasy fiction forensics friendship imaginative fiction juvenile murder ...
Language
   In Finnish
Location of events in book
   Paris, France
   Yoknapatawpha County
Media
   Audio
   E-Book
   Hardcover
   Paperback
Numbers
   42
   098839883
   3455000009660334550000096905
Physical location of the book
   Attic
   Basement
   Box_4
   Cellar
   Old house blue bedroom
   Дача/ второй этаж
Plot Description
   Assassination
   Assassins
   Murder
   Poison
Price
   $0.99
Publisher
   Cambridge University Press
   Heritage Press
Publisher series
   Wordsworth Classics
Reading level (AR = Accelerated Reader book level) (GRL = Guided reading levels)
   AR 3.2
Reading status
   Currently reading
   To be read
   Wishlist
Setting
   Colonial India
   Ancient Rome
   Roman Empire
Size
   Less-than-400-pages
Time frame
   20th century
   2010
Translation
   This Aeneid is translated by Robert Fagles. This is one of the finest translations
   Translated by Adriana Pellegrini
   Ålderdomlig översättning
When did it enter the library?
   Acquired November 2011
   Acquisition date: 02/2009
   Added May 2016
Where did it come from?
   Bought
   Borrowed
   Gift from Dad
   Humble Bundle
   Library loan

>8 bnielsen: this is beside the point, but I've been using "setting" to group dates, so it's clear I'm talking about content and not when the book was written/read, and I've been growing more dissatisfied with that choice as the decades go on, when it comes to non-fiction about a certain span of time. But i want books about 1860-1869 to be grouped with books explicitly set in those same years.

Long story short, I've had the worst trouble thinking of appropriate synonyms, but I think "time frame" might help me get there. Thank you for that list!

Glad to be of some help there :-) I hadn't the foggiest idea when I started that it would become so large. I stopped because it was already hideously long, not because I ran out of categories to add. (And I learned some new things while making it, like what Humble Bundle was meaning.)

I've started noticing that I might want to add stuff like "writer writing about a writer" and "contains a dying man's last words". So maybe a category of Plot devices?

>10 bnielsen:

Yes, some people certainly tag for plot devices, styles, and tropes.

I noticed in reviewing your list that better than half of the tag categories are accounted for in LT cataloging fields and Common Knowledge. In my own catalog, I have tried to avoid such "redundant" tags, but they are a reasonable outcome of the system. It's interesting to see how, for example, one book might be tagged with its author's name far more than another, relative to the book's own presence in the database. Does that mean that the people who read it are likely to read it because of its author? I don't know.

>11 paradoxosalpha: I think some of the author tags are due to difficulties in the search. I.e. authors with just a few characters in their name might be confused with others due to stemming.

>8 bnielsen: What are others using tags for?

Note that I use Collections to indicate the shelf/shelves where books are stored, or will be stored when we get more shelves up :)

I use tags for only 4 things, so far:
1) Guesses for a Collection, possibly not yet created, where a book might belong (make enough sense that we can find it again). Putting the "?" ahead of the text helps these pop visually in a listing of tags:
?Autobiography
?Cartography
?Communities
?Fathers&Sons
?Feminism
?HistoryNewEngland
?Maps
?Meditation
?Mind
?MotorVehicles
?Mysticism
?Philosophy
?Physics-Philosophy
?Psychology
?Religion
?Self(Psychology)
?Self-Help
?SocialInteraction
?SocialPsychology
?SocialSciences
?Sociology
?ThematicMaps
?WomenStudies

2) To keep track of not-obvious info about books so that I can quickly find books with that attribute. The leading "_" helps these pop visually in a listing of tags:
__BOMC (a source/date hint)
__purchasedWithBlackElkSpeaks (a source/date hint)
__storedInsideEliotComplete (refers to a republished essay in pamphlet form)
_Anthology
_numberedByAuthor
_signedByAuthor
_signedByAuthors
_signedByEditor
_signedByPhotographers

3) To-do's for specific books:
checkAuthors_needConfirm?
editAuthor_notCollage
editBook_addContributors
editBook_addSeriesFolkloreStudies
editBook_addSeriesIrishStudies
editBook_addSeriesLOA
editBook_addToSingleAuthorList?
editBook_aliasWmStockton-to-GSSchuyler
editBook_checkAllFieldsAgainstMyCopy
editBook_checkVolume
editBook_clarifyLoth
editBook_combine
editBook_correctFictionWriter
editBook_countPages
editBook_editionIssues?
editBook_handleSpiralRecipes?
editBook_improveClassifications
editBook_joinSeries
editBook_needClassification
editBook_needCombining
editBook_needShelf
editBook_onlyCollectionMetadataDone
editBook_removeFromSingleAuthorList?
editBook_removeSeries
editBook_removeSet
editBook_resolveAuthorNaming
editBook_reviewDeweyDecimal
editBook_transcribeNote
editBook_UndatedChildcraftSeries?
editBook_untangleSeriesOptions?
editBook_upload/linkCover
editBook_uploadTealCover
editBook_whoFrom
editWork_fixDescription

4) Key copyright information to help me sort out proper editioning/combining/splitting/attribution for a handful of hymnals & bibles. Someday:
©1931
©1935
©1946_OT
©1951_Maps
©1952_NT
©1958
©1962_BibleStudyHelps
©1964_Dictionary
©1965_AbridgedConcordance

>13 LeslieWx: 3) And I thought that _I_ was picky to get all information about a book perfect??

You left out editBook_addPhoneticsForPronouncingTitle :-)

>14 bnielsen: LOL! Isn't it nice to know there's someone further out in the distribution's tail? :)

Although I just realized that I no longer need 1 of those. And I gave up on trying to measure dimensions & weight after about 3 books.

>7 MarthaJeanne: Seeing multiple classifications is part of the point; it's answering the question "where has books using this tag been classified". The fact that you can find the multiple places that books on depression may be stored with MDC is a feature, and the fact that tags aren't unique are just some part of how tags work.

The tag page for box 5 already shows you a bunch of meaningless junk; the book most tagged "box 5" is irrelevant, as really the entire list of books tagged with "box 5", or the related tags. There's no need for a tag page for box 5 at all.

There is a need for the tag. If there is a tag, there is a tag page.

>17 MarthaJeanne: "There is a need for the tag. If there is a tag, there is a tag page." does not imply there's a need for a tag page.

Whenever tags are discussed, I wish there were two categories.

One book-related and one private.
The general category would contain text-related information, perhaps even work-related details, etc.
The private category would contain information about storage location, condition, edition, etc.—basically everything that's of interest to the user.

I would also like to be able to specify tags hierarchically (like in Publication, Media).