xapian-core
1.5.0
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Abstract class representing a point in the VSM. More...
Public Member Functions | |
PointType () | |
Default constructor. | |
TermIterator | termlist_begin () const |
Return a TermIterator to the beginning of the termlist. | |
TermIterator | termlist_end () const noexcept |
Return a TermIterator to the end of the termlist. | |
bool | contains (const std::string &term) const |
Validate whether a certain term exists in the termlist or not by performing a lookup operation in the existing values. More... | |
double | get_weight (const std::string &term) const |
Return the TF-IDF weight associated with a certain term. More... | |
void | add_weight (const std::string &term, double weight) |
Add the weight 'weight' to the mapping of a term. More... | |
double | get_magnitude () const |
Return the pre-computed squared magnitude. | |
Xapian::termcount | termlist_size () const |
Return the size of the termlist. | |
PointType * | release () |
Start reference counting this object. More... | |
const PointType * | release () const |
Start reference counting this object. More... | |
Protected Member Functions | |
void | set_weight (const std::string &term, double weight) |
Set the weight 'weight' to the mapping of a term. More... | |
Protected Attributes | |
std::unordered_map< std::string, double > | weights |
Implement a map to store the terms within a document and their pre-computed TF-IDF weights. | |
double | magnitude |
Store the squared magnitude of the PointType. | |
Abstract class representing a point in the VSM.
void Xapian::PointType::add_weight | ( | const std::string & | term, |
double | weight | ||
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Add the weight 'weight' to the mapping of a term.
term | Term to which the weight is to be added |
weight | Weight which has to be added to the existing mapping of the term |
bool Xapian::PointType::contains | ( | const std::string & | term | ) | const |
Validate whether a certain term exists in the termlist or not by performing a lookup operation in the existing values.
term | Term which is to be searched |
double Xapian::PointType::get_weight | ( | const std::string & | term | ) | const |
Return the TF-IDF weight associated with a certain term.
term | Term for which TF-IDF weight is returned |
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inline |
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inline |
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protected |
Set the weight 'weight' to the mapping of a term.
term | Term for which the weight is supposed to be changed |
weight | The weight to which the mapping of the term is to be set |