Example usage for org.apache.mahout.common LongPair getFirst

Introduction

In this page you can find the example usage for org.apache.mahout.common LongPair getFirst.

Prototype

public long getFirst() 

Source Link

Usage

From source file:net.myrrix.online.example.rescorer.FilterHalfRescorerProvider.java

License:Apache License

@Override
public Rescorer<LongPair> getMostSimilarItemsRescorer(MyrrixRecommender recommender, String... args) {
    final boolean odd = args.length > 0 && Boolean.valueOf(args[0]);
    return new Rescorer<LongPair>() {
        @Override//from   w  w  w . j a  v  a2  s.  c  o  m
        public double rescore(LongPair longPair, double score) {
            return isFiltered(longPair) ? Double.NaN : 10.0 * score;
        }

        @Override
        public boolean isFiltered(LongPair longPair) {
            return odd == ((longPair.getFirst() & 0x01) == 1) || odd == ((longPair.getSecond() & 0x01) == 1);
        }
    };
}

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From source file:net.myrrix.online.SimpleModRescorer.java

License:Apache License

@Override
public boolean isFiltered(LongPair itemIDs) {
    return itemIDs.getFirst() % modulus != 0 || itemIDs.getSecond() % modulus != 0;
}

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From source file:net.ufida.info.mahout.common.CachingRecommender.java

License:Apache License

/**
 * <p>//from w  w w  .  jav  a2 s.  c  om
 * Clears cached recommendations for the given user.
 * </p>
 * 
 * @param userID
 *          clear cached data associated with this user ID
 */
public void clear(final long userID) {
    log.debug("Clearing recommendations for user ID '{}'", userID);
    recommendationCache.remove(userID);
    estimatedPrefCache.removeKeysMatching(new Cache.MatchPredicate<LongPair>() {
        @Override
        public boolean matches(LongPair userItemPair) {
            return userItemPair.getFirst() == userID;
        }
    });
}

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From source file:org.gpfvic.mahout.cf.taste.impl.similarity.LongPairMatchPredicate.java

License:Apache License

@Override
public boolean matches(LongPair pair) {
    return pair.getFirst() == id || pair.getSecond() == id;
}

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