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Special forum features: inserting music notation, posting audio recordings.

All Categories > Musipedia > Musipedia Features > New search algorithm
Total Posts: 3 - Pages (1): [1]
Author: w0lfie
Posted: Jun 21 2007 - 07:08 PM
Subject: re: re: New search algorithm
I agree with you; there was enough ambiguity in the categories that I didn't always know where to search.
user picture Author: rt
Posted: Jun 21 2007 - 03:00 PM
Subject: re: New search algorithm
Now everything should work again, with one exception:
Taking categories ("Classical", "Popular", "National Anthems", "Folk", "Hymns and Anthems") into account when searching the Musipedia collection seems to slow things down quite a bit (because it involves joining two rather large tables - I would have to redesign the database schema to make this faster).
So, for now, I will just disable the categories and simply always search all of them, which is much faster.

Is this feature still needed? I think the melody and rhythm search are now so much better that one does not really need to restrict the search to a certain category anymore. If we get rid of categories, there are also other nice side effects:
- simpler user interface for both searching and editing
- no more ambiguities in border cases or in cases of melodies that don't really fit into any category
- no more false negatives for people who accidentally don't search the right categories

Is there any disagreement about my plan to just do without categories in the future?


user picture Author: rt
Posted: Jun 21 2007 - 01:52 PM
Subject: New search algorithm
I am in the process of upgrading the search algorithm.

Right now, the melody search for Musipedia should already run fine with the new algorithm.
The rhythm search probably does not give any sensible results right now, but will soon also be noticeably improved.
The Web search needs to be migrated to another server and therefore might intermittently not work at all. After the migration, the web search will continue to use the old algorithm for a while.

I'll post updates here.

If you see any errors other than what I described above, please let me know!
- Rainer
Total Posts: 3 - Pages (1): [1]
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How to insert music:

Add a bit of sheet music, along with a MIDI file, simply by entering note names in Lilypond syntax between the [L] and [/L] tags.
For example, you can try what happens if you enter: [l]g'4 g'4 d''4 d''4 e''4 e''4 d''2[/l] (use the Preview function if you don't actually want to post this).
You can create these lists of note names by clicking on piano keys here.

How to post an audio recording:

If you just want to sing, whistle, or play a melody so that other forum visitors can hear it, follow these steps:

  1. Record your audio here.
  2. You should notice a 32-character hash code, something like: 2a40281c5001c5a7d8c9f57fcdeccfaf
  3. copy this hash code and paste it into a forum post, enclosed in the audio tags, for example: [audio]2a40281c5001c5a7d8c9f57fcdeccfaf[/audio]

How to mark a thread as solved:

If the original question in a thread is solved, please mark it as solved using the "solved" icon (or by just typing [solved] into your post). This makes life easier for people who are willing to identify melodies, since unsolved problems are easier to spot that way. If a problem turns out to not be solved after all, just write [/solved] in a new post, and the thread will be labeled accordingly.