杜克重復數據刪除引擎：完全相同的記錄不匹配

Question

我正在嘗試使用Duke將記錄從一個csv匹配到另一個。第一個csv和第二個都具有ID,Model,Price,CompanyName,Review,Url列。 我正在嘗試匹配另一個csv以查找重復記錄。

package no.priv.garshol.duke;

import no.priv.garshol.duke.matchers.PrintMatchListener;

public class RunDuke {

  public static void main(String[] argv) throws Exception {
    Configuration config =
        ConfigLoader
            .load("/home/kishore/Duke-master/doc/example-data/presonalCare.xml");
    Processor proc = new Processor(config);
    proc.addMatchListener(new PrintMatchListener(true, true, true, false, config.getProperties(),
        true));
    proc.link();
    proc.close();
  }

}

這是personalCare.xml的示例：

<!-- language: xml -->
<!-- For more information, see https://github.com/larsga/Duke/wiki/ Improvements 
    needed: - some area numbers have spaces in them - not stripping accents from 
    names -->
<duke>
    <schema>
        <threshold>0.7</threshold>
        <property type="id">
            <name>ID</name>
        </property>
        <property>
            <name>Model</name>
            <comparator>no.priv.garshol.duke.comparators.Levenshtein</comparator>
            <low>0.4</low>
            <high>0.8</high>
        </property>
        <property>
            <name>Price</name>
            <comparator>no.priv.garshol.duke.comparators.ExactComparator</comparator>
            <low>0.04</low>
            <high>0.73</high>
        </property>
        <property>
            <name>CompanyName</name>
            <comparator>no.priv.garshol.duke.comparators.Levenshtein</comparator>
            <low>0.4</low>
            <high>0.8</high>
        </property>
        <property>
            <name>Review</name>
            <comparator>no.priv.garshol.duke.comparators.Levenshtein</comparator>
            <low>0.12</low>
            <high>0.93</high>
        </property>
        <property>
            <name>Url</name>
            <comparator>no.priv.garshol.duke.comparators.Levenshtein</comparator>
            <low>0.12</low>
            <high>0.93</high>
        </property>
    </schema>

    <database class="no.priv.garshol.duke.databases.InMemoryDatabase">
    </database>

    <group>
        <csv>
            <param name="input-file" value="personal_care_11.csv" />
            <param name="header-line" value="false" />
            <column name="1" property="ID" />
            <column name="2" property="Model" cleaner="no.priv.garshol.duke.cleaners.LowerCaseNormalizeCleaner"/>
            <column name="3" property="Price" />
            <column name="4" property="CompanyName" cleaner="no.priv.garshol.duke.cleaners.LowerCaseNormalizeCleaner"/>
            <column name="5" property="Review" cleaner="no.priv.garshol.duke.cleaners.LowerCaseNormalizeCleaner"/>
            <column name="6" property="Url" cleaner="no.priv.garshol.duke.cleaners.LowerCaseNormalizeCleaner"/>
        </csv>
    </group>

    <group>
        <csv>
            <param name="input-file" value="personal_care_11.csv" />
            <param name="header-line" value="false" />
            <column name="1" property="ID" />
            <column name="2" property="Model" cleaner="no.priv.garshol.duke.cleaners.LowerCaseNormalizeCleaner"/>
            <column name="3" property="Price" />
            <column name="4" property="CompanyName" cleaner="no.priv.garshol.duke.cleaners.LowerCaseNormalizeCleaner"/>
            <column name="5" property="Review" cleaner="no.priv.garshol.duke.cleaners.LowerCaseNormalizeCleaner"/>
            <column name="6" property="Url" cleaner="no.priv.garshol.duke.cleaners.LowerCaseNormalizeCleaner"/>
        </csv>
    </group>


</duke>

上面的代碼工作正常，但與確切的記錄示例不匹配

STHDRNFKAQ4AFYE8,Littmann 3M Classic II S.E Acoustic
Stethoscope,6297,Littmann,,http://dl.flipkart.com/dl/littmann-3m-classic-ii-s-e-acoustic-stethoscope/p/itme3uhzbqxhzfda?pid=STHDRNFKAQFAFYE8&affid=3ba0de4902524e2b90e43b84b89ea0ef

在兩個csv文件中。 我還想知道.xml文件中給出的低和高屬性值的工作，如何確定列值的低和高值。

Answer 1

您正在執行記錄鏈接（兩個數據集）而不是重復數據刪除（單個數據集），因此請執行.deduplicate（）調用。

另外，請不要使用“ no.priv.garshol.duke”軟件包名稱。 您絕對不要使用自己不擁有的域名。

無論如何，您找不到任何匹配項的原因是兩條記錄具有相同的ID。 杜克（Duke）驗證它沒有將記錄報告為與自己匹配，因此匹配被過濾掉了。 如果您制作了一個csv文件的副本並將其用於第2組，則對ID進行更改，然后Duke會找到副本。

當我嘗試以下操作時會發生以下情況：

[lars.garshol@laptop tmp]$ java -cp ~/cvs-co/duke/duke-core/target/duke-core-1.3-SNAPSHOT.jar:. no.priv.garshol.duke.Duke --showmatches presonalCare.xml 

MATCH 0.9982630751840313
ID: 'SHDRNFKAQ4AFYE8', Model: 'littmann 3m classic ii s.e acoustic stethoscope', Price: '6297', CompanyName: 'littmann', Url: 'http://dl.flipkart.com/dl/littmann-3m-classic-ii-s-e-acoustic-stethoscope/p/itme3uhzbqxhzfda?pid=sthdrnfkaqfafye8&affid=3ba0de4902524e2b90e43b84b89ea0ef', 
ID: 'STHDRNFKAQ4AFYE8', Model: 'littmann 3m classic ii s.e acoustic stethoscope', Price: '6297', CompanyName: 'littmann', Url: 'http://dl.flipkart.com/dl/littmann-3m-classic-ii-s-e-acoustic-stethoscope/p/itme3uhzbqxhzfda?pid=sthdrnfkaqfafye8&affid=3ba0de4902524e2b90e43b84b89ea0ef',