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增加文本向量中的term按照从小到大排序 #1

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增加文本向量中的term按照从小到大排序 #1

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21 changes: 20 additions & 1 deletion ...in/java/org/shirdrn/document/preprocessing/component/AbstractOutputtingQuantizedData.java
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Original file line number Diff line number Diff line change
Expand Up @@ -57,7 +57,7 @@ public void fire() {
StringBuffer line = new StringBuffer();
line.append(labelId).append(" ");
Entry<String, Map<String, Term>> docsEntry = docsIter.next();
Map<String, Term> terms = docsEntry.getValue();
Map<String, Term> terms = sortMapByKey(docsEntry.getValue());
for(Entry<String, Term> termEntry : terms.entrySet()) {
String word = termEntry.getKey();
Integer wordId = getWordId(word);
Expand All @@ -83,6 +83,25 @@ public void fire() {
LOG.info("Finished: outputVectorFile=" + context.getFDMetadata().getOutputVectorFile());
}

/**
* sort map by key
* @param oriMap original map
* @return sorted map
*/
private Map<String, Term> sortMapByKey(Map<String, Term> oriMap) {
if (oriMap == null || oriMap.isEmpty()) {
return null;
}
Map<String, Term> sortedMap = new TreeMap<String, Term>(
new Comparator<String>() {
public int compare(String key1, String key2) {
return getWordId(key1) - getWordId(key2);
}
});
sortedMap.putAll(oriMap);
return sortedMap;
}

private Integer getWordId(String word) {
TermFeatureable term = featuredTermsMap.get(word);
return term == null ? null : term.getId();
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