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Subject: [Boost-commit] svn:boost r72444 - in sandbox/bloom_filter/trunk: boost doc libs/bloom_filter/doc/txt
From: cpp.cabrera_at_[hidden]
Date: 2011-06-06 16:38:01


Author: alejandro
Date: 2011-06-06 16:38:00 EDT (Mon, 06 Jun 2011)
New Revision: 72444
URL: http://svn.boost.org/trac/boost/changeset/72444

Log:
Removed empty doc directory at root level. Moved README from boost directory to libs/bloom_filter/doc/txt/.

Added:
   sandbox/bloom_filter/trunk/libs/bloom_filter/doc/txt/
   sandbox/bloom_filter/trunk/libs/bloom_filter/doc/txt/README
      - copied unchanged from r72442, /sandbox/bloom_filter/trunk/boost/README
Removed:
   sandbox/bloom_filter/trunk/boost/README
   sandbox/bloom_filter/trunk/doc/

Deleted: sandbox/bloom_filter/trunk/boost/README
==============================================================================
--- sandbox/bloom_filter/trunk/boost/README 2011-06-06 16:38:00 EDT (Mon, 06 Jun 2011)
+++ (empty file)
@@ -1,38 +0,0 @@
-===== Compression =====
-
-(Lossless) Compression policies to investigate:
-- LZ (Lempel-Ziv), e.g., DEFLATE
-- LZR (LZ-Renau), Zip
-- LZX, MSFT Cab format
-- Burrows-Wheeler
-- check wiki page on compression
-
-A compression policy looks as below:
-template <size_t Size>
-struct CompressionPolicy {
- size_t compress(const char *const in, char *out, const size_t insize);
- void decompress(const char *const in, char *out, const size_t insize);
-};
-
-compress() returns the size of the data when compressed.
-
-Since compress and decompress will only ever used in association
-with the bits of a Bloom filter, the Size parameter can be embedded in
-the policy template. This represents the uncompressed size of the Bloom
-filter.
-
-===== Deleting Variants =====
-
-Deletion should not be embedded as a policy. Inherently,
-Bloom filters that use a deletion policy have different data layouts.
-For example, Scalable Bloom filters must be grown to always satisfy
-the desired false positive rate. There are also Counting Bloom filters,
-that instead of storing a bit array, require storing an array of 3-4 bit
-counters.
-
-A few deleting variants:
-- Scalable Counting Bloom filter
-- Counting Bloom filter
-- Bloomier filters
-
--Alejandro Cabrera


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