76 lines
2.7 KiB
Java
76 lines
2.7 KiB
Java
import com.kreuzberg.Kreuzberg;
|
|
import com.kreuzberg.config.ExtractionConfig;
|
|
import com.kreuzberg.config.KeywordConfig;
|
|
import com.kreuzberg.keywords.YakeParams;
|
|
import com.kreuzberg.keywords.RakeParams;
|
|
import com.kreuzberg.result.ExtractionResult;
|
|
|
|
// Example 1: Basic YAKE configuration
|
|
// Uses YAKE algorithm with default parameters and English stopword filtering
|
|
public class KeywordConfigExample {
|
|
|
|
public static void basicYake() throws Exception {
|
|
ExtractionConfig config = new ExtractionConfig.Builder()
|
|
.keywords(new KeywordConfig.Builder()
|
|
.algorithm("yake")
|
|
.maxKeywords(10)
|
|
.minScore(0.0f)
|
|
.ngramRange(1, 3)
|
|
.language("en")
|
|
.yakeParams(null)
|
|
.rakeParams(null)
|
|
.build())
|
|
.build();
|
|
|
|
ExtractionResult result = Kreuzberg.extractFile("document.pdf", config);
|
|
System.out.println("Keywords: " + result.getKeywords());
|
|
}
|
|
|
|
// Example 2: Advanced YAKE with custom parameters
|
|
// Fine-tunes YAKE with custom window size for co-occurrence analysis
|
|
public static void advancedYake() throws Exception {
|
|
ExtractionConfig config = new ExtractionConfig.Builder()
|
|
.keywords(new KeywordConfig.Builder()
|
|
.algorithm("yake")
|
|
.maxKeywords(15)
|
|
.minScore(0.1f)
|
|
.ngramRange(1, 2)
|
|
.language("en")
|
|
.yakeParams(new YakeParams.Builder()
|
|
.windowSize(1)
|
|
.build())
|
|
.rakeParams(null)
|
|
.build())
|
|
.build();
|
|
|
|
ExtractionResult result = Kreuzberg.extractFile("document.pdf", config);
|
|
System.out.println("Keywords: " + result.getKeywords());
|
|
}
|
|
|
|
// Example 3: RAKE configuration
|
|
// Uses RAKE algorithm for rapid keyword extraction with phrase constraints
|
|
public static void rakeConfig() throws Exception {
|
|
ExtractionConfig config = new ExtractionConfig.Builder()
|
|
.keywords(new KeywordConfig.Builder()
|
|
.algorithm("rake")
|
|
.maxKeywords(10)
|
|
.minScore(5.0f)
|
|
.ngramRange(1, 3)
|
|
.language("en")
|
|
.yakeParams(null)
|
|
.rakeParams(new RakeParams.Builder()
|
|
.minWordLength(1)
|
|
.maxWordsPerPhrase(3)
|
|
.build())
|
|
.build())
|
|
.build();
|
|
|
|
ExtractionResult result = Kreuzberg.extractFile("document.pdf", config);
|
|
System.out.println("Keywords: " + result.getKeywords());
|
|
}
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
basicYake();
|
|
}
|
|
}
|