Xapian::Internal::ExpandStats Class Reference
Collates statistics while calculating term weight in an ESet. More...
#include <expandweight.h>
Public Member Functions | |
| ExpandStats (Xapian::doclength avlen_, double expand_k_) | |
| void | accumulate (Xapian::termcount wdf, Xapian::termcount doclen, Xapian::doccount subtf, Xapian::doccount subdbsize) |
Public Attributes | |
| Xapian::doccount | dbsize |
| Size of the subset of a multidb to which the value in termfreq applies. | |
| Xapian::doccount | termfreq |
| Term frequency (for a multidb, may be for a subset of the databases). | |
| Xapian::weight | multiplier |
| Factor to multiply w(t) by. | |
| Xapian::doccount | rtermfreq |
| The number of documents from the RSet indexed by the current term (r). | |
| size_t | db_index |
| Keeps track of the index of the sub-database we're accumulating for. | |
Private Attributes | |
| std::vector< bool > | dbs_seen |
| Xapian::doclength | avlen |
| double | expand_k |
| Parameter 'k' in the probabilistic expand weighting formula. | |
Detailed Description
Collates statistics while calculating term weight in an ESet.Definition at line 35 of file expandweight.h.
Constructor & Destructor Documentation
| Xapian::Internal::ExpandStats::ExpandStats | ( | Xapian::doclength | avlen_, | |
| double | expand_k_ | |||
| ) | [inline] |
Definition at line 61 of file expandweight.h.
Member Function Documentation
| void Xapian::Internal::ExpandStats::accumulate | ( | Xapian::termcount | wdf, | |
| Xapian::termcount | doclen, | |||
| Xapian::doccount | subtf, | |||
| Xapian::doccount | subdbsize | |||
| ) | [inline] |
Definition at line 66 of file expandweight.h.
References avlen, db_index, dbs_seen, dbsize, expand_k, multiplier, rtermfreq, and termfreq.
Referenced by NetworkTermList::accumulate_stats(), InMemoryTermList::accumulate_stats(), FlintTermList::accumulate_stats(), ChertTermList::accumulate_stats(), and BrassTermList::accumulate_stats().
Member Data Documentation
Keeps track of the index of the sub-database we're accumulating for.
Definition at line 59 of file expandweight.h.
Referenced by accumulate(), and MultiTermList::accumulate_stats().
std::vector<bool> Xapian::Internal::ExpandStats::dbs_seen [private] |
Size of the subset of a multidb to which the value in termfreq applies.
Definition at line 47 of file expandweight.h.
Referenced by accumulate(), and Xapian::Internal::ExpandWeight::get_weight().
double Xapian::Internal::ExpandStats::expand_k [private] |
Parameter 'k' in the probabilistic expand weighting formula.
Definition at line 43 of file expandweight.h.
Referenced by accumulate().
Factor to multiply w(t) by.
Definition at line 53 of file expandweight.h.
Referenced by accumulate(), and Xapian::Internal::ExpandWeight::get_weight().
The number of documents from the RSet indexed by the current term (r).
Definition at line 56 of file expandweight.h.
Referenced by accumulate(), and Xapian::Internal::ExpandWeight::get_weight().
Term frequency (for a multidb, may be for a subset of the databases).
Definition at line 50 of file expandweight.h.
Referenced by accumulate(), and Xapian::Internal::ExpandWeight::get_weight().
The documentation for this class was generated from the following file:
- common/expandweight.h