osm-search/Nominatim
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give preference to full words in address, too

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Full word terms are already preferred for the name part. Adding
only one-word partials to the address, makes it impossible to
give a similar preference for the address part. Each term adds
a rank penalty. The problem here is that we interpret the query
forwards and backwards. Having different penalty systems for
name and address means that the same term ends up with different
penalties and that often leads to interpretations of the wrong
direction being in the way.
This commit is contained in:
Sarah Hoffmann 2021-03-11 15:03:36 +01:00
parent 35f4695b67
commit 182f5f5d7b
1 changed files with 12 additions and 30 deletions
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42
lib-php/SearchDescription.php
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@ -329,51 +329,30 @@ class SearchDescription
if ((!$bStructuredPhrases || $iPhrase > 0)
&& (!empty($this->aName))
&& strpos($sToken, ' ') === false
) {
$oSearch = clone $this;
$oSearch->iSearchRank++;
if (preg_match('#^[0-9 ]+$#', $sToken)) {
$oSearch->iSearchRank++;
}
if ($oSearchTerm->iSearchNameCount < CONST_Max_Word_Frequency) {
$oSearch = clone $this;
$oSearch->iSearchRank += $oSearchTerm->iTermCount + 1;
if (empty($this->aName)) {
$oSearch->iSearchRank++;
}
if (preg_match('#^[0-9]+$#', $sToken)) {
$oSearch->iSearchRank++;
}
$oSearch->aAddress[$iWordID] = $iWordID;
$aNewSearches[] = $oSearch;
} else {
$oSearch = clone $this;
$oSearch->iSearchRank += $oSearchTerm->iTermCount + 1;
$oSearch->aAddressNonSearch[$iWordID] = $iWordID;
if (!empty($aFullTokens)) {
$oSearch->iSearchRank++;
}
$aNewSearches[] = $oSearch;
// revert to the token version?
foreach ($aFullTokens as $oSearchTermToken) {
if (is_a($oSearchTermToken, '\Nominatim\Token\Word')) {
$oSearch = clone $this;
$oSearch->iSearchRank += 3;
$oSearch->aAddress[$oSearchTermToken->iId]
= $oSearchTermToken->iId;
$aNewSearches[] = $oSearch;
}
}
}
$aNewSearches[] = $oSearch;
}
if ((!$this->sPostcode && !$this->aAddress && !$this->aAddressNonSearch)
&& (empty($this->aName) || $this->iNamePhrase == $iPhrase)
) {
$oSearch = clone $this;
$oSearch->iSearchRank += 2;
if (empty($this->aName)) {
$oSearch->iSearchRank += 1;
}
if (preg_match('#^[0-9]+$#', $sToken)) {
$oSearch->iSearchRank += 2;
$oSearch->iSearchRank++;
if (preg_match('#^[0-9 ]+$#', $sToken)) {
$oSearch->iSearchRank++;
}
if ($oSearchTerm->iSearchNameCount < CONST_Max_Word_Frequency) {
if (empty($this->aName)
@ -387,6 +366,9 @@ class SearchDescription
}
$oSearch->aName[$iWordID] = $iWordID;
} else {
if (!empty($aFullTokens)) {
$oSearch->iSearchRank++;
}
$oSearch->aNameNonSearch[$iWordID] = $iWordID;
}
$oSearch->iNamePhrase = $iPhrase;