text-search

问题 I have Arabic text in database with diacritics. when i type Arabic for searching some string, it is without diacritics which definitely do not match with database string. it is working fine on text without diacritics. is there any way to run it on text with diacritics ??? 回答1: is there any way to run it on text with diacritics ??? Unfortunately no. Like MIE said: Arabic diacritics are characters so it's not really possible as far as I know. MIE's answer will be difficult to implement and will

问题 We have a situation where a user would like to have a single 'omni-box' for searching for a word\phrase anywhere in a document. Is MongoDB able to perform this search or would it have to be an explicit search of every field? 回答1: You need to create a wildcard text indexes like this: db.collection.createIndex( { "$**": "text" } ) You can the use the $text operator to performs a text search. As mentioned in the documentation: This index allows for text search on all fields with string content.

问题 I have a document collection with following structure uid, name With a Index db.Collection.createIndex({name: "text"}) It contains following data 1, iphone 2, iphóne 3, iphonë 4, iphónë When I am doing text search for iphone I am getting only two records, which is unexpected actual output -------------- 1, iphone 2, iphóne If I search for iphonë db.Collection.find( { $text: { $search: "iphonë"} } ); I am getting --------------------- 3, iphonë 4, iphónë But Actually I am expecting following

问题 How would you find a particular class name inside lots of jar files? (Looking for the actual class name, not the classes that reference it.) 回答1: Eclipse can do it, just create a (temporary) project and put your libraries on the projects classpath. Then you can easily find the classes. Another tool, that comes to my mind, is Java Decompiler. It can open a lot of jars at once and helps to find classes as well. 回答2: Unix Use the jar (or unzip -v ), grep , and find commands. For example, the

问题 Currently i'm studying about data-mining, text comparison and have found this one: https://en.wikipedia.org/wiki/Cosine_similarity. Since i have successfully implemented this algorithm to compare two strings i have decided to try some more complex task to achieve. I have iterated over my DB which contains about 250k documents and compared one random document from DB to whole documents in that DB. To compare all these items time was taken: 316.35898590088 sec, that's, - > 5 minutes to compare

问题 I have a table a_x with the columns A and B, column A is in CLOB format, column B number(10): A | B -----------------------------|------- atveroeosipsumloremipsumdolor| 1 stetclitakasdtest | 2 noseatakimataatveroeosipsum | 3 loremipsumdolor | 4 consetetursadipscingelitr | 5 I would like to produce this table, in order to find out, which ID goes with certain substrings: A | IDs -----------------------------|------- atveroeosipsum | 1,3 test | 2 stetclitakasd | 2 noseatakimata | 3

问题 I have a large Apache Jena TDB, I want to build a Lucene index using Apache Jena 2.10.2 for use with the new text search feature. I find the documentation hard to follow. I first tried to use configuration in code, but had trouble with the dependencies. Any combination of lecene-core and solr-solrj would either result in certain 'classNotFound' errors or a 'StandardAnalyzer overrides final method tokenStream' error. Example of Code: Dataset ds1 = DatasetFactory.createMem() ; EntityDefinition

问题 We have map of string pairs like name:location (unix like absolute location a la myfolder/ ). We are given with some location a la myfolder/mysubfolder/myfile . How to find which of maps location fit to given url most? Example we have a map like: service1:myfolder/ service2:myfolder/mysubfolder/ service3:myfolder/myothersubfolder/ service4:myfolder/mysubfolder/myfile We are given value myfolder/mysubfolder/myfile/blablabla/ (string). We want to find out to which item in our map it relates the

问题 I am developing Spring + Mongo Data JPA example for Text Search. When I am trying to search using OrderID 102. I was expecting all records to be fetch from DB those record contains 102 in OrderID . Please help me I see following error is coming. org.springframework.data.repository.query.ParameterOutOfBoundsException: Invalid parameter index! You seem to have declare too little query method parameters! at org.springframework.data.repository.query.Parameters.getParameter(Parameters.java:178) at

问题 MongoDB 3.4 I have a value in a variable. val1 = "Fort Minor" I need to search in a collection stores (with text index on name field) with documents as db.stores.insert([ { _id: 1, name: "Java Hut", description: "Coffee and cakes" }, { _id: 2, name: "Burger Buns", description: "Gourmet hamburgers" }, { _id: 3, name: "Coffee Shop", description: "Just coffee" }, { _id: 4, name: "Fort Coffee", description: "Discount clothing" }, { _id: 5, name: "Java Shopping", description: "Indonesian goods" }