Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change

Re^4: Challenge: Optimal Animals/Pangolins Strategy

by Limbic~Region (Chancellor)
on May 03, 2013 at 13:38 UTC ( #1031887=note: print w/replies, xml ) Need Help??

in reply to Re^3: Challenge: Optimal Animals/Pangolins Strategy
in thread Challenge: Optimal Animals/Pangolins Strategy

I don't think you screwed anything up - this is the standard 1 queue version of Huffman coding. It meets the stated goals of my objective.

Let me try and give some more insight into this fuzzy idea I have. Huffman coding gives ideal compression when the symbol set it is coding for and the frequencies those symbols appear is known up front. Typically, those symbols are single characters and for my purposes that will be true. If the bit sequence '01101' is used but '01100' is empty/unused, I see that as an opportunity to fill in the tree with some unknown symbols. Since all the single character symbols are known and populated, I would plug these "holes" with symbols representing character tuples.

I then realized that I should reduce the frequency of the single character symbols that were part of the newly inserted tuple because not all of them would be encoded. This could then generate a different looking tree with different holes to fill. Looks like an infinite recursion problem.

I then thought - if I can come up with a strategy to populate a tree given a desired outcome, I could just jump to the answer. In my sleep deprived state, I thought the Animals problem I posted got me there but it really just got me back to the beginning.

Cheers - L~R

  • Comment on Re^4: Challenge: Optimal Animals/Pangolins Strategy

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1031887]
[hippo]: Corion: Yes, you can. It's all in the pg_hba.conf
[erix]: yeah, but there is a lot SQLite cannot do :)
[hippo]: Database is the 2nd column.
shmem .oO( docker. docker. docker? docker. docker! docker )
[shmem]: at least, some Ook.
[erix]: another simple Pg thing is to running a database off a tsv (alas, readonly)
[erix]: I'm waiting for that zipfile-reading to show up in DBD::SQLite :)
[Corion]: hippo, erix: That sounds promising :)
[Corion]: erix: I misinterpreted that. It only allows to read a zipfile like a table, not reading a database from a zipfile :-(

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (8)
As of 2018-02-23 15:18 GMT
Find Nodes?
    Voting Booth?
    When it is dark outside I am happiest to see ...

    Results (302 votes). Check out past polls.