importorg.apache.lucene.misc.Similarity;publicclassCosineSimilarityExample{publicstaticvoidmain(String[]args){Stringtext1="Java is a programming language";Stringtext2="Programming languages are great";doublesimilarity=Similarity.cosineSimilarity(text1,text2);System.out.println("Cosine similarity between text...
下面是一个使用稀疏向量计算余弦相似度的示例代码: importorg.apache.commons.math3.linear.RealVector;importorg.apache.commons.math3.linear.OpenMapRealVector;publicclassSparseCosineSimilarityExample{publicstaticvoidmain(String[]args){// 创建稀疏向量RealVectorv1=newOpenMapRealVector();v1.setEntry(0,1.0);v1...
String s2 ="My other string...";// Let's work with sequences of 2 characters...Cosinecosine =newCosine(2);// Pre-compute the profile of stringsMap<String, Integer> profile1 = cosine.getProfile(s1); Map<String, Integer> profile2 = cosine.getProfile(s2);// Prints 0.516185System.out....
Similarity measures Cosine similarity A simple recommender system Amazon's item-to-item collaborative filtering recommender Implementing user ratings Large sparse matrices Using random access files The Netflix prize Summary Chapter 10： NoSQL Databases The Map data structure SQL versus NoSQL The Mongo ...
See wiki: Cosine Similarity Here is the formula: Given two vectors A and B with the same size, calculate the cosine similarity. Return 2.0000 if cosine similarity is invalid (for example A = [0] and B = [0]). Example Given A
The class shown below parsed the text documents and split them into tokens. This class will communicate with TfIdf.java class to calculated TfIdf. It also calls CosineSimilarity.java class to calculated the similarity between the passed documents. ...
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package org.example; import com.huaban.analysis.jieba.JiebaSegmenter; import org.deeplearning4j.models.embeddings.loader.WordVectorSerializer; import org.deeplearning4j.models.word2vec.Word2Vec; import org.nd4j.linalg.api.ndarray.INDArray; import org.nd4j.linalg.factory.Nd4j; import java.io.BufferedI...
The vector functions of the form function(query, doc[field]) are deprecated, and the form function(query, field) should be used instead. For example, cosineSimilarity(query, doc[field]) is replaced by cosineSimilarity(query, field).Disallow use of the nGram and edgeNGram tokenizer namesThe...
CosineSimilarity similarityMeasure =newCosineSimilarity(vector1, vector2);doublesimilarityScore = similarityMeasure.calculateDistanceAmongVectors();returnsimilarityScore; } 开发者ID:gizemsogancioglu,项目名称:biosses,代码行数:24,代码来源:WordVectorConstructor.java ...