diff options
Diffstat (limited to 'linguistics/src/main/java/com')
9 files changed, 0 insertions, 414 deletions
diff --git a/linguistics/src/main/java/com/yahoo/language/opennlp/DefaultLanguageDetectorContextGenerator.java b/linguistics/src/main/java/com/yahoo/language/opennlp/DefaultLanguageDetectorContextGenerator.java deleted file mode 100644 index 27c23d8d3e6..00000000000 --- a/linguistics/src/main/java/com/yahoo/language/opennlp/DefaultLanguageDetectorContextGenerator.java +++ /dev/null @@ -1,32 +0,0 @@ -// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root. -package com.yahoo.language.opennlp; - -import opennlp.tools.ngram.NGramCharModel; -import opennlp.tools.util.normalizer.CharSequenceNormalizer; - -import java.util.HashSet; -import java.util.Set; - -/** - * Avoids using the unnecessarily slow {@link NGramCharModel}. - * - * @author jonmv - */ -public class DefaultLanguageDetectorContextGenerator extends opennlp.tools.langdetect.DefaultLanguageDetectorContextGenerator { - - public DefaultLanguageDetectorContextGenerator(int minLength, int maxLength, CharSequenceNormalizer... normalizers) { - super(minLength, maxLength, normalizers); - } - - @Override - public String[] getContext(CharSequence document) { - int[] normalized = normalizer.normalize(document).codePoints().map(Character::toLowerCase).toArray(); - Set<String> grams = new HashSet<>(); - for (int i = 0; i < normalized.length; i++) - for (int j = minLength; j <= maxLength && i + j < normalized.length; j++) - grams.add(new String(normalized, i, j)); - - return grams.toArray(new String[grams.size()]); - } - -} diff --git a/linguistics/src/main/java/com/yahoo/language/opennlp/LanguageDetectorFactory.java b/linguistics/src/main/java/com/yahoo/language/opennlp/LanguageDetectorFactory.java deleted file mode 100644 index 0cf4634c6c3..00000000000 --- a/linguistics/src/main/java/com/yahoo/language/opennlp/LanguageDetectorFactory.java +++ /dev/null @@ -1,20 +0,0 @@ -// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root. -package com.yahoo.language.opennlp; - -import opennlp.tools.langdetect.LanguageDetectorContextGenerator; - -/** - * Overrides the UrlCharSequenceNormalizer, which has a bad regex, until fixed: https://issues.apache.org/jira/browse/OPENNLP-1350 - * - * @author jonmv - */ -@SuppressWarnings("unused") // Loaded by black magic: specified in properties in the loaded model. -public class LanguageDetectorFactory extends opennlp.tools.langdetect.LanguageDetectorFactory { - - @Override - public LanguageDetectorContextGenerator getContextGenerator() { - return new DefaultLanguageDetectorContextGenerator(1, 3, - VespaCharSequenceNormalizer.getInstance()); - } - -} diff --git a/linguistics/src/main/java/com/yahoo/language/opennlp/OpenNlpDetector.java b/linguistics/src/main/java/com/yahoo/language/opennlp/OpenNlpDetector.java deleted file mode 100644 index d7a7d3a4744..00000000000 --- a/linguistics/src/main/java/com/yahoo/language/opennlp/OpenNlpDetector.java +++ /dev/null @@ -1,92 +0,0 @@ -// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root. -package com.yahoo.language.opennlp; - -import com.yahoo.language.Language; -import com.yahoo.language.detect.Detection; -import com.yahoo.language.detect.Detector; -import com.yahoo.language.detect.Hint; -import com.yahoo.language.simple.SimpleDetector; -import opennlp.tools.langdetect.LanguageDetectorConfig; -import opennlp.tools.langdetect.LanguageDetectorME; -import opennlp.tools.langdetect.LanguageDetectorModel; - -import java.io.IOException; -import java.io.UncheckedIOException; -import java.nio.ByteBuffer; -import java.nio.charset.Charset; -import java.util.HashMap; -import java.util.Locale; -import java.util.Map; - -import static java.nio.charset.StandardCharsets.UTF_8; - -/** - * Detects text language using patched OpenNLP, with fallback to {@link SimpleDetector} for undetected CJK input. - * - * @author jonmv - */ -class OpenNlpDetector implements Detector { - - private static final Object monitor = new Object(); - private static LanguageDetectorModel model; - - private final SimpleDetector simple = new SimpleDetector(); - private final Map<String, Language> languagesByISO3 = new HashMap<>(); - private final LanguageDetectorME detector; - private final LanguageDetectorConfig config; - - OpenNlpDetector() { - detector = new LanguageDetectorME(loadModel()); - config = new LanguageDetectorConfig(); - config.setMinDiff(0.02); - config.setChunkSize(32); - config.setMaxLength(256); - for (Locale locale : Locale.getAvailableLocales()) { - Language language = Language.fromLocale(locale); - if (language != null) - languagesByISO3.put(locale.getISO3Language(), language); - } - } - - private static LanguageDetectorModel loadModel() { - synchronized (monitor) { - if (model == null) { - try { - model = new LanguageDetectorModel(OpenNlpDetector.class.getResourceAsStream("/models/langdetect-183.bin")); - } - catch (IOException e) { - throw new UncheckedIOException(e); - } - } - } - return model; - } - - @Override - public Detection detect(byte[] input, int offset, int length, Hint hint) { - Charset encoding = Charset.forName(simple.guessEncoding(input, offset, length)); - return new Detection(detectLanguage(new String(input, offset, length, encoding)), encoding.name(), false); - } - - @Override - public Detection detect(ByteBuffer input, Hint hint) { - if (input.hasArray()) - return detect(input.array(), input.arrayOffset() + input.position(), input.remaining(), hint); - - byte[] buffer = new byte[input.remaining()]; - input.get(buffer); - return detect(buffer, 0, buffer.length, hint); - } - - @Override - public Detection detect(String input, Hint hint) { - return new Detection(detectLanguage(input), UTF_8.name(), false); - } - - private Language detectLanguage(String input) { - var prediction = detector.probingPredictLanguages(input, config).getLanguages()[0]; - var result = prediction.getConfidence() > 0.02 ? languagesByISO3.get(prediction.getLang()) : null; - return result != null ? result : simple.guessLanguage(input.substring(0, Math.min(input.length(), 256))); - } - -} diff --git a/linguistics/src/main/java/com/yahoo/language/opennlp/OpenNlpLinguistics.java b/linguistics/src/main/java/com/yahoo/language/opennlp/OpenNlpLinguistics.java deleted file mode 100644 index 1d96d8a0cdf..00000000000 --- a/linguistics/src/main/java/com/yahoo/language/opennlp/OpenNlpLinguistics.java +++ /dev/null @@ -1,36 +0,0 @@ -// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root. -package com.yahoo.language.opennlp; - -import com.yahoo.component.annotation.Inject; -import com.yahoo.language.Linguistics; -import com.yahoo.language.detect.Detector; -import com.yahoo.language.process.Tokenizer; -import com.yahoo.language.simple.SimpleLinguistics; - -/** - * Returns a linguistics implementation based on OpenNlp. - * - * @author bratseth - * @author jonmv - */ -public class OpenNlpLinguistics extends SimpleLinguistics { - - private final Detector detector; - - @Inject - public OpenNlpLinguistics() { - this.detector = new OpenNlpDetector(); - } - - @Override - public Tokenizer getTokenizer() { - return new OpenNlpTokenizer(getNormalizer(), getTransformer()); - } - - @Override - public Detector getDetector() { return detector; } - - @Override - public boolean equals(Linguistics other) { return (other instanceof OpenNlpLinguistics); } - -} diff --git a/linguistics/src/main/java/com/yahoo/language/opennlp/OpenNlpTokenizer.java b/linguistics/src/main/java/com/yahoo/language/opennlp/OpenNlpTokenizer.java deleted file mode 100644 index 8080dc92729..00000000000 --- a/linguistics/src/main/java/com/yahoo/language/opennlp/OpenNlpTokenizer.java +++ /dev/null @@ -1,99 +0,0 @@ -// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root. -package com.yahoo.language.opennlp; - -import com.yahoo.language.Language; -import com.yahoo.language.LinguisticsCase; -import com.yahoo.language.process.Normalizer; -import com.yahoo.language.process.SpecialTokenRegistry; -import com.yahoo.language.process.StemMode; -import com.yahoo.language.process.Token; -import com.yahoo.language.process.Tokenizer; -import com.yahoo.language.process.Transformer; -import com.yahoo.language.simple.SimpleNormalizer; -import com.yahoo.language.simple.SimpleTokenizer; -import com.yahoo.language.simple.SimpleTransformer; -import opennlp.tools.stemmer.Stemmer; -import opennlp.tools.stemmer.snowball.SnowballStemmer; - -import java.util.List; - -/** - * Tokenizer using OpenNlp - * - * @author matskin - * @author bratseth - */ -public class OpenNlpTokenizer implements Tokenizer { - - private final static int SPACE_CODE = 32; - private final Normalizer normalizer; - private final Transformer transformer; - private final SimpleTokenizer simpleTokenizer; - private final SpecialTokenRegistry specialTokenRegistry; - - public OpenNlpTokenizer() { - this(new SimpleNormalizer(), new SimpleTransformer()); - } - - public OpenNlpTokenizer(Normalizer normalizer, Transformer transformer) { - this(normalizer, transformer, new SpecialTokenRegistry(List.of())); - } - - public OpenNlpTokenizer(Normalizer normalizer, Transformer transformer, SpecialTokenRegistry specialTokenRegistry) { - this.normalizer = normalizer; - this.transformer = transformer; - this.specialTokenRegistry = specialTokenRegistry; - this.simpleTokenizer = new SimpleTokenizer(normalizer, transformer, specialTokenRegistry); - } - - @Override - public Iterable<Token> tokenize(String input, Language language, StemMode stemMode, boolean removeAccents) { - Stemmer stemmer = stemmerFor(language, stemMode); - if (stemmer == null) - return simpleTokenizer.tokenize(input, language, stemMode, removeAccents); - else - return simpleTokenizer.tokenize(input, token -> processToken(token, language, stemMode, removeAccents, stemmer)); - } - - private String processToken(String token, Language language, StemMode stemMode, boolean removeAccents, - Stemmer stemmer) { - token = normalizer.normalize(token); - token = LinguisticsCase.toLowerCase(token); - if (removeAccents) - token = transformer.accentDrop(token, language); - if (stemMode != StemMode.NONE) - token = stemmer.stem(token).toString(); - return token; - } - - private Stemmer stemmerFor(Language language, StemMode stemMode) { - if (language == null || language == Language.ENGLISH || stemMode == StemMode.NONE) return null; - SnowballStemmer.ALGORITHM algorithm = algorithmFor(language); - if (algorithm == null) return null; - return new SnowballStemmer(algorithm); - } - - private SnowballStemmer.ALGORITHM algorithmFor(Language language) { - switch (language) { - case DANISH: return SnowballStemmer.ALGORITHM.DANISH; - case DUTCH: return SnowballStemmer.ALGORITHM.DUTCH; - case FINNISH: return SnowballStemmer.ALGORITHM.FINNISH; - case FRENCH: return SnowballStemmer.ALGORITHM.FRENCH; - case GERMAN: return SnowballStemmer.ALGORITHM.GERMAN; - case HUNGARIAN: return SnowballStemmer.ALGORITHM.HUNGARIAN; - case IRISH: return SnowballStemmer.ALGORITHM.IRISH; - case ITALIAN: return SnowballStemmer.ALGORITHM.ITALIAN; - case NORWEGIAN_BOKMAL: return SnowballStemmer.ALGORITHM.NORWEGIAN; - case NORWEGIAN_NYNORSK: return SnowballStemmer.ALGORITHM.NORWEGIAN; - case PORTUGUESE: return SnowballStemmer.ALGORITHM.PORTUGUESE; - case ROMANIAN: return SnowballStemmer.ALGORITHM.ROMANIAN; - case RUSSIAN: return SnowballStemmer.ALGORITHM.RUSSIAN; - case SPANISH: return SnowballStemmer.ALGORITHM.SPANISH; - case SWEDISH: return SnowballStemmer.ALGORITHM.SWEDISH; - case TURKISH: return SnowballStemmer.ALGORITHM.TURKISH; - case ENGLISH: return SnowballStemmer.ALGORITHM.ENGLISH; - default: return null; - } - } - -} diff --git a/linguistics/src/main/java/com/yahoo/language/opennlp/UrlCharSequenceNormalizer.java b/linguistics/src/main/java/com/yahoo/language/opennlp/UrlCharSequenceNormalizer.java deleted file mode 100644 index 883319e2f8b..00000000000 --- a/linguistics/src/main/java/com/yahoo/language/opennlp/UrlCharSequenceNormalizer.java +++ /dev/null @@ -1,31 +0,0 @@ -// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root. -package com.yahoo.language.opennlp; - -import opennlp.tools.util.normalizer.CharSequenceNormalizer; - -import java.util.regex.Pattern; - -/** - * Modifies {@link opennlp.tools.util.normalizer.UrlCharSequenceNormalizer} to avoid the bad email regex. - * - * @author jonmv - */ -public class UrlCharSequenceNormalizer implements CharSequenceNormalizer { - - private static final Pattern URL_REGEX = - Pattern.compile("https?://[-_.?&~;+=/#0-9A-Za-z]+"); - private static final Pattern MAIL_REGEX = - Pattern.compile("(?<![-+_.0-9A-Za-z])[-+_.0-9A-Za-z]+@[-0-9A-Za-z]+[-.0-9A-Za-z]+"); - - private static final UrlCharSequenceNormalizer INSTANCE = new UrlCharSequenceNormalizer(); - - public static UrlCharSequenceNormalizer getInstance() { - return INSTANCE; - } - - public CharSequence normalize(CharSequence text) { - String modified = URL_REGEX.matcher(text).replaceAll(" "); - return MAIL_REGEX.matcher(modified).replaceAll(" "); - } - -} diff --git a/linguistics/src/main/java/com/yahoo/language/opennlp/VespaCharSequenceNormalizer.java b/linguistics/src/main/java/com/yahoo/language/opennlp/VespaCharSequenceNormalizer.java deleted file mode 100644 index df8f3fad520..00000000000 --- a/linguistics/src/main/java/com/yahoo/language/opennlp/VespaCharSequenceNormalizer.java +++ /dev/null @@ -1,51 +0,0 @@ -// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root. -package com.yahoo.language.opennlp; - -import opennlp.tools.util.normalizer.CharSequenceNormalizer; - -import java.util.function.IntConsumer; -import java.util.stream.IntStream; - -/** - * Simple normalizer - * - * @author arnej - */ -public class VespaCharSequenceNormalizer implements CharSequenceNormalizer { - - private static final VespaCharSequenceNormalizer INSTANCE = new VespaCharSequenceNormalizer(); - - public static VespaCharSequenceNormalizer getInstance() { - return INSTANCE; - } - - // filter replacing sequences of non-letters with a single space - static class OnlyLetters implements IntStream.IntMapMultiConsumer { - boolean addSpace = false; - public void accept(int codepoint, IntConsumer target) { - if (WordCharDetector.isWordChar(codepoint)) { - if (addSpace) { - target.accept(' '); - addSpace = false; - } - target.accept(Character.toLowerCase(codepoint)); - } else { - addSpace = true; - } - } - } - - public CharSequence normalize(CharSequence text) { - if (text.isEmpty()) { - return text; - } - var r = text - .codePoints() - .mapMulti(new OnlyLetters()) - .collect(StringBuilder::new, - StringBuilder::appendCodePoint, - StringBuilder::append); - return r; - } - -} diff --git a/linguistics/src/main/java/com/yahoo/language/opennlp/WordCharDetector.java b/linguistics/src/main/java/com/yahoo/language/opennlp/WordCharDetector.java deleted file mode 100644 index d7e3f88ae8d..00000000000 --- a/linguistics/src/main/java/com/yahoo/language/opennlp/WordCharDetector.java +++ /dev/null @@ -1,48 +0,0 @@ -// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root. -package com.yahoo.language.opennlp; - -class WordCharDetector { - public static boolean isWordChar(int codepoint) { - int unicodeGeneralCategory = Character.getType(codepoint); - switch (unicodeGeneralCategory) { - case Character.LOWERCASE_LETTER: - case Character.OTHER_LETTER: - case Character.TITLECASE_LETTER: - case Character.UPPERCASE_LETTER: - case Character.MODIFIER_LETTER: - return true; -/* - * these are the other categories, currently considered non-word-chars: - * - case Character.CONNECTOR_PUNCTUATION: - case Character.CONTROL: - case Character.CURRENCY_SYMBOL: - case Character.DASH_PUNCTUATION: - case Character.ENCLOSING_MARK: - case Character.END_PUNCTUATION: - case Character.FINAL_QUOTE_PUNCTUATION: - case Character.FORMAT: - case Character.INITIAL_QUOTE_PUNCTUATION: - case Character.MATH_SYMBOL: - case Character.MODIFIER_SYMBOL: - case Character.NON_SPACING_MARK: - case Character.OTHER_PUNCTUATION: - case Character.OTHER_SYMBOL: - case Character.PRIVATE_USE: - case Character.START_PUNCTUATION: - case Character.SURROGATE: - case Character.UNASSIGNED: - case Character.DECIMAL_DIGIT_NUMBER: - case Character.LETTER_NUMBER: - case Character.OTHER_NUMBER: - case Character.COMBINING_SPACING_MARK: - case Character.LINE_SEPARATOR: - case Character.SPACE_SEPARATOR: - case Character.PARAGRAPH_SEPARATOR: - * - */ - default: - return false; - } - } -} diff --git a/linguistics/src/main/java/com/yahoo/language/opennlp/package-info.java b/linguistics/src/main/java/com/yahoo/language/opennlp/package-info.java deleted file mode 100644 index 9606578b3ac..00000000000 --- a/linguistics/src/main/java/com/yahoo/language/opennlp/package-info.java +++ /dev/null @@ -1,5 +0,0 @@ -// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root. -@ExportPackage -package com.yahoo.language.opennlp; - -import com.yahoo.osgi.annotation.ExportPackage; |