/usr/include/sunpinyin-2.0/slm/thread/ValueCompress.h is in libsunpinyin-dev 3.0.0~git20160910-1.
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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2007 Sun Microsystems, Inc. All Rights Reserved.
*
* The contents of this file are subject to the terms of either the GNU Lesser
* General Public License Version 2.1 only ("LGPL") or the Common Development and
* Distribution License ("CDDL")(collectively, the "License"). You may not use this
* file except in compliance with the License. You can obtain a copy of the CDDL at
* http://www.opensource.org/licenses/cddl1.php and a copy of the LGPLv2.1 at
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* specific language governing permissions and limitations under the License. When
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* include the full text of the License in the License file as well as the
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* NOTICE PURSUANT TO SECTION 9 OF THE COMMON DEVELOPMENT AND DISTRIBUTION LICENSE
* (CDDL)
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* laws of the State of California (excluding conflict-of-law provisions).
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*/
#ifndef AGC_SUN_VALUE_COMPRESS_H
#define AGC_SUN_VALUE_COMPRESS_H
#include <map>
#include <vector>
class CValueCompressor {
public:
/**
* N > 4
*/
void
operator()(std::map<float, int>& values,
std::map<float, int>& map,
std::vector<float>& table,
unsigned N) const;
/**
* used for using log as effective distance, vice versa.
* if using -log(a) as distance to compress value a, ie: a --> -log2(a),
* the val_rmap should be val_rmap[-log(a)] = a;
* values map using the effective distance value. But After this call
* map using the real value, ie "a" in previous example. But table
* would be the weight-center for a group effective value, You should
* make it back to original values after this call.
*/
void
operator()(std::map<float, float>& val_rmap,
std::map<float, int>& values,
std::map<float, int>& map,
std::vector<float>& table,
unsigned N) const;
};
#endif
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