lucene::search::DefaultSimilarity Class Reference
Expert: Default scoring implementation. More...
#include <Similarity.h>
Inheritance diagram for lucene::search::DefaultSimilarity:
Public Member Functions | |
| DefaultSimilarity () | |
| ~DefaultSimilarity () | |
| float_t | lengthNorm (const TCHAR *fieldName, int32_t numTerms) |
Implemented as 1/sqrt(numTerms). | |
| float_t | queryNorm (float_t sumOfSquaredWeights) |
Implemented as 1/sqrt(sumOfSquaredWeights). | |
| float_t | tf (float_t freq) |
Implemented as sqrt(freq). | |
| float_t | sloppyFreq (int32_t distance) |
Implemented as 1 / (distance + 1). | |
| float_t | idf (int32_t docFreq, int32_t numDocs) |
Implemented as log(numDocs/(docFreq+1)) + 1. | |
| float_t | coord (int32_t overlap, int32_t maxOverlap) |
Implemented as overlap / maxOverlap. | |
Detailed Description
Expert: Default scoring implementation.
Constructor & Destructor Documentation
| lucene::search::DefaultSimilarity::DefaultSimilarity | ( | ) |
| lucene::search::DefaultSimilarity::~DefaultSimilarity | ( | ) |
Member Function Documentation
| float_t lucene::search::DefaultSimilarity::coord | ( | int32_t | overlap, | |
| int32_t | maxOverlap | |||
| ) | [virtual] |
Implemented as overlap / maxOverlap.
Implements lucene::search::Similarity.
| float_t lucene::search::DefaultSimilarity::idf | ( | int32_t | docFreq, | |
| int32_t | numDocs | |||
| ) | [virtual] |
Implemented as log(numDocs/(docFreq+1)) + 1.
Implements lucene::search::Similarity.
| float_t lucene::search::DefaultSimilarity::lengthNorm | ( | const TCHAR * | fieldName, | |
| int32_t | numTerms | |||
| ) | [virtual] |
Implemented as 1/sqrt(numTerms).
Implements lucene::search::Similarity.
| float_t lucene::search::DefaultSimilarity::queryNorm | ( | float_t | sumOfSquaredWeights | ) | [virtual] |
Implemented as 1/sqrt(sumOfSquaredWeights).
Implements lucene::search::Similarity.
| float_t lucene::search::DefaultSimilarity::sloppyFreq | ( | int32_t | distance | ) | [virtual] |
Implemented as 1 / (distance + 1).
Implements lucene::search::Similarity.
| float_t lucene::search::DefaultSimilarity::tf | ( | float_t | freq | ) | [inline, virtual] |
Implemented as sqrt(freq).
Implements lucene::search::Similarity.
The documentation for this class was generated from the following file: