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- Newsgroups: comp.programming
- Path: sparky!uunet!world!wdr
- From: wdr@world.std.com (William D Ricker)
- Subject: Re: Soundex algorithms, database indexing -- alternative
- Message-ID: <Bs4ty6.LvL@world.std.com>
- Organization: The World Public Access UNIX, Brookline, MA
- References: <1453@shaman.wv.tek.com>
- Distribution: usa
- Date: Wed, 29 Jul 1992 04:03:41 GMT
- Lines: 54
-
- The Soundex algorithm described by two previous follow-ups is only
- the best-known of sounds-like alorithms. It is tied to single-language
- assumptions, which may be violated in the CD-Disc application cited.
-
- A proprietary algorithm which is available for license and as a
- product which might fit that application better is Proximity
- Technology's Proximity Search algorithm. They have a (patented) VLSI
- accelerator chip which used to be necessary (on old PC-ATs) if the
- database grew larger than trivial (400 records); a modern 486 might
- not need one, I don't know. Their "Friendly Finder" would list the
- 10 to 20 records which most closely match the key you are typing,
- with the list changing as you extend the key, character by character --
- like incremental-search mode in emacs, only it shows 20 matching lines,
- like list-matching-lines. Usually there are a few records in the list
- that you don't understand why their algorithm thinks they're a close
- match, but what you want is almost always on page 1. In 1986, Friendly
- Finder would scan DBase II and III and ASCII files. I suppose
- they may have upgraded it for DBase IV.
-
- They will also license to developpers to use the library & hardware
- in your programs -- but for a customer-inquiry device, the pop-up
- database-searcher may be just right -- you can paste the product
- number from the searcher into the order-entry program, I think!
-
- The company exists to exploit their two resources: the Proximity
- Search Algoritm in hardware and software, and their exclusive
- licesinsing arrangement with Merriam-Webster's lexicographic database.
- (Yes, that pocket-dictionary/spell-checker/thesaurus that has the
- MW logo on it has the Proximity algorithm in it, and probably has
- their logo in fine print too.)
-
- To contact them: in 1986, they had an office in Framingham Mass,
- which I visited as an Evil Defense Contractor looking for useful
- technologies for databases (they already had a contract with NSA
- for use of their VLSI chip in something hush-hush, but that had
- little to do with me except provide a handle for checking references
- if I got my sponsor interested); it may still be there if you call
- 508-555-1212. Their literature listed home office as:
- Proximity Technology Inc.
- 3511 NE 22nd Avenue
- Fort Lauderdale, FL 33308-6226
- 305-566-3511 (FAX: -2088)
- TELEX 160054 PRXMTY
-
-
- Disclaimer: My only remuneration from them was a Beta copy of the
- thesaurus that my wife was supposed to review, but never used due to
- lack of a harddrive to install it on and a trial (no hardware) copy of
- Friendly Finder for evaluation. Hmmm. Maybe I should install those
- again, they are nice programs. I wonder how it would work on my
- 1E4 record book catalogue on the super-486 at the office?
- --
- Bill Ricker wdr@world.std.com "The freedom of the press belongs
- (formerly wdr@wang.com) to those who own one."
-