[comp.binaries.ibm.pc.d] PK compression software

Ralf.Brown@B.GP.CS.CMU.EDU (08/13/88)

In article <962@lakesys.UUCP>, deanr@lakesys.UUCP (Dean Roth) writes:
}The following message was taken from EXEC-PC BBS
}in Shorewood, WI, and is from THE Phil Katz.
}
}==================================================
}
}c: IBM GNRL  #25669  08-10-88  21:45  (Read 90 times)
}f: PHIL KATZ
}t: JIM DUNNIGAN (Rcvd)
}s: R: R: WHAT ELSE?  Reply to #25640
}
}Jim,
} 
}>>Aside from gaining a little speed and compression on PKPAK 3.61 . . .
} 
}Well, hopefully more than just a little.  While I don't want
}to spill all my beans, but without the constraints of the
}.ARC format or the Ziv-Lempel implementations used in .ARC files,
}it is possible to do MUCH better than PKPAK 3.61.  Also, the

Sounds like Phil is planning to use the algorithm described in the August
1988 _Communications_of_the_ACM_ article "Application of Splay Trees to Data
Compression."  A modification of the basic algorithm matched or outperformed
Unix "compress" while using only 1/3 the data storage.
--
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