diff --git a/.classpath b/.classpath
index b80f32b..50b494c 100644
--- a/.classpath
+++ b/.classpath
@@ -2,8 +2,8 @@
-
-
-
+
+
+
diff --git a/bin/lucene_read_file/BM25FSimilarity$BM25DocScorer.class b/bin/lucene_read_file/BM25FSimilarity$BM25DocScorer.class
index a9b6e25..99aded0 100644
Binary files a/bin/lucene_read_file/BM25FSimilarity$BM25DocScorer.class and b/bin/lucene_read_file/BM25FSimilarity$BM25DocScorer.class differ
diff --git a/bin/lucene_read_file/BM25FSimilarity$BM25Stats.class b/bin/lucene_read_file/BM25FSimilarity$BM25Stats.class
index 26b82f0..22667e5 100644
Binary files a/bin/lucene_read_file/BM25FSimilarity$BM25Stats.class and b/bin/lucene_read_file/BM25FSimilarity$BM25Stats.class differ
diff --git a/bin/lucene_read_file/BM25FSimilarity.class b/bin/lucene_read_file/BM25FSimilarity.class
index 2500ab4..76a9a30 100644
Binary files a/bin/lucene_read_file/BM25FSimilarity.class and b/bin/lucene_read_file/BM25FSimilarity.class differ
diff --git a/bin/lucene_read_file/LuceneReadIndexFromFileExample.class b/bin/lucene_read_file/LuceneReadIndexFromFileExample.class
index a7b3958..20b93fe 100644
Binary files a/bin/lucene_read_file/LuceneReadIndexFromFileExample.class and b/bin/lucene_read_file/LuceneReadIndexFromFileExample.class differ
diff --git a/bin/lucene_read_file/LuceneWriteIndexFromFileExample$1.class b/bin/lucene_read_file/LuceneWriteIndexFromFileExample$1.class
index be2ed95..91dc190 100644
Binary files a/bin/lucene_read_file/LuceneWriteIndexFromFileExample$1.class and b/bin/lucene_read_file/LuceneWriteIndexFromFileExample$1.class differ
diff --git a/bin/lucene_read_file/LuceneWriteIndexFromFileExample.class b/bin/lucene_read_file/LuceneWriteIndexFromFileExample.class
index 41318dd..7a766ad 100644
Binary files a/bin/lucene_read_file/LuceneWriteIndexFromFileExample.class and b/bin/lucene_read_file/LuceneWriteIndexFromFileExample.class differ
diff --git a/build.xml b/build.xml
new file mode 100644
index 0000000..72a21fe
--- /dev/null
+++ b/build.xml
@@ -0,0 +1,73 @@
+
+
+
+
+
+
+
+
+
+
+ Builds, tests, and runs the project lucene_read_file.
+
+
+
diff --git a/build/built-jar.properties b/build/built-jar.properties
new file mode 100644
index 0000000..2644363
--- /dev/null
+++ b/build/built-jar.properties
@@ -0,0 +1,4 @@
+#Sun, 09 Dec 2018 19:27:17 +0530
+
+
+E\:\\workspace3\\LuceneNewsSearch-Final=
diff --git a/build/classes/.netbeans_automatic_build b/build/classes/.netbeans_automatic_build
new file mode 100644
index 0000000..e69de29
diff --git a/build/classes/.netbeans_update_resources b/build/classes/.netbeans_update_resources
new file mode 100644
index 0000000..e69de29
diff --git a/build/classes/lucene_read_file/BM25FSimilarity$BM25DocScorer.class b/build/classes/lucene_read_file/BM25FSimilarity$BM25DocScorer.class
new file mode 100644
index 0000000..cb3f0a4
Binary files /dev/null and b/build/classes/lucene_read_file/BM25FSimilarity$BM25DocScorer.class differ
diff --git a/build/classes/lucene_read_file/BM25FSimilarity$BM25Stats.class b/build/classes/lucene_read_file/BM25FSimilarity$BM25Stats.class
new file mode 100644
index 0000000..13c97a6
Binary files /dev/null and b/build/classes/lucene_read_file/BM25FSimilarity$BM25Stats.class differ
diff --git a/build/classes/lucene_read_file/BM25FSimilarity.class b/build/classes/lucene_read_file/BM25FSimilarity.class
new file mode 100644
index 0000000..8bd52c7
Binary files /dev/null and b/build/classes/lucene_read_file/BM25FSimilarity.class differ
diff --git a/build/classes/lucene_read_file/LuceneReadIndexFromExample_new.class b/build/classes/lucene_read_file/LuceneReadIndexFromExample_new.class
new file mode 100644
index 0000000..27c159f
Binary files /dev/null and b/build/classes/lucene_read_file/LuceneReadIndexFromExample_new.class differ
diff --git a/build/classes/lucene_read_file/NewJFrame1$1.class b/build/classes/lucene_read_file/NewJFrame1$1.class
new file mode 100644
index 0000000..00c17b9
Binary files /dev/null and b/build/classes/lucene_read_file/NewJFrame1$1.class differ
diff --git a/build/classes/lucene_read_file/NewJFrame1$2.class b/build/classes/lucene_read_file/NewJFrame1$2.class
new file mode 100644
index 0000000..521e90a
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diff --git a/build/classes/lucene_read_file/NewJFrame1$3.class b/build/classes/lucene_read_file/NewJFrame1$3.class
new file mode 100644
index 0000000..1763d8e
Binary files /dev/null and b/build/classes/lucene_read_file/NewJFrame1$3.class differ
diff --git a/build/classes/lucene_read_file/NewJFrame1.class b/build/classes/lucene_read_file/NewJFrame1.class
new file mode 100644
index 0000000..5bc21c6
Binary files /dev/null and b/build/classes/lucene_read_file/NewJFrame1.class differ
diff --git a/build/classes/lucene_read_file/NewJFrame1.form b/build/classes/lucene_read_file/NewJFrame1.form
new file mode 100644
index 0000000..a4e5cbc
--- /dev/null
+++ b/build/classes/lucene_read_file/NewJFrame1.form
@@ -0,0 +1,106 @@
+
+
+
diff --git a/build/classes/lucene_read_file/new_index_writer$1.class b/build/classes/lucene_read_file/new_index_writer$1.class
new file mode 100644
index 0000000..8924aea
Binary files /dev/null and b/build/classes/lucene_read_file/new_index_writer$1.class differ
diff --git a/build/classes/lucene_read_file/new_index_writer$2.class b/build/classes/lucene_read_file/new_index_writer$2.class
new file mode 100644
index 0000000..d7e5c42
Binary files /dev/null and b/build/classes/lucene_read_file/new_index_writer$2.class differ
diff --git a/build/classes/lucene_read_file/new_index_writer.class b/build/classes/lucene_read_file/new_index_writer.class
new file mode 100644
index 0000000..3669dc8
Binary files /dev/null and b/build/classes/lucene_read_file/new_index_writer.class differ
diff --git a/dist/README.TXT b/dist/README.TXT
new file mode 100644
index 0000000..509572b
--- /dev/null
+++ b/dist/README.TXT
@@ -0,0 +1,32 @@
+========================
+BUILD OUTPUT DESCRIPTION
+========================
+
+When you build an Java application project that has a main class, the IDE
+automatically copies all of the JAR
+files on the projects classpath to your projects dist/lib folder. The IDE
+also adds each of the JAR files to the Class-Path element in the application
+JAR files manifest file (MANIFEST.MF).
+
+To run the project from the command line, go to the dist folder and
+type the following:
+
+java -jar "lucene_read_file.jar"
+
+To distribute this project, zip up the dist folder (including the lib folder)
+and distribute the ZIP file.
+
+Notes:
+
+* If two JAR files on the project classpath have the same name, only the first
+JAR file is copied to the lib folder.
+* Only JAR files are copied to the lib folder.
+If the classpath contains other types of files or folders, these files (folders)
+are not copied.
+* If a library on the projects classpath also has a Class-Path element
+specified in the manifest,the content of the Class-Path element has to be on
+the projects runtime path.
+* To set a main class in a standard Java project, right-click the project node
+in the Projects window and choose Properties. Then click Run and enter the
+class name in the Main Class field. Alternatively, you can manually type the
+class name in the manifest Main-Class element.
diff --git a/dist/indexedFiles/write.lock b/dist/indexedFiles/write.lock
new file mode 100644
index 0000000..e69de29
diff --git a/dist/lib/lucene-analyzers-common-6.2.0.jar b/dist/lib/lucene-analyzers-common-6.2.0.jar
new file mode 100644
index 0000000..a4d4e69
Binary files /dev/null and b/dist/lib/lucene-analyzers-common-6.2.0.jar differ
diff --git a/dist/lib/lucene-core-6.2.0.jar b/dist/lib/lucene-core-6.2.0.jar
new file mode 100644
index 0000000..f60474d
Binary files /dev/null and b/dist/lib/lucene-core-6.2.0.jar differ
diff --git a/dist/lib/lucene-queryparser-6.2.0.jar b/dist/lib/lucene-queryparser-6.2.0.jar
new file mode 100644
index 0000000..dff797e
Binary files /dev/null and b/dist/lib/lucene-queryparser-6.2.0.jar differ
diff --git a/indexedFiles/_x.cfe b/indexedFiles/_x.cfe
new file mode 100644
index 0000000..868a1c8
Binary files /dev/null and b/indexedFiles/_x.cfe differ
diff --git a/indexedFiles/_x.cfs b/indexedFiles/_x.cfs
new file mode 100644
index 0000000..07f0fb3
Binary files /dev/null and b/indexedFiles/_x.cfs differ
diff --git a/indexedFiles/_x.si b/indexedFiles/_x.si
new file mode 100644
index 0000000..cb1e72a
Binary files /dev/null and b/indexedFiles/_x.si differ
diff --git a/indexedFiles/segments_w b/indexedFiles/segments_w
new file mode 100644
index 0000000..f76a4a9
Binary files /dev/null and b/indexedFiles/segments_w differ
diff --git a/nbproject/build-impl.xml b/nbproject/build-impl.xml
new file mode 100644
index 0000000..3933ab7
--- /dev/null
+++ b/nbproject/build-impl.xml
@@ -0,0 +1,1403 @@
+
+
+
+
+
+
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+
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+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Must set src.dir
+ Must set build.dir
+ Must set dist.dir
+ Must set build.classes.dir
+ Must set dist.javadoc.dir
+ Must set build.test.classes.dir
+ Must set build.test.results.dir
+ Must set build.classes.excludes
+ Must set dist.jar
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
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+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Must set javac.includes
+
+
+
+
+
+
+
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+ No tests executed.
+
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+
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+
+
+
+
+ Must set JVM to use for profiling in profiler.info.jvm
+ Must set profiler agent JVM arguments in profiler.info.jvmargs.agent
+
+
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+
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+
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+
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+
+
+
+
+
+
+
+
+
+
+ Must select some files in the IDE or set javac.includes
+
+
+
+
+
+
+
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+
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+
+
+
+
+
+
+
+
+
+
+
+
+
+ To run this application from the command line without Ant, try:
+
+ java -jar "${dist.jar.resolved}"
+
+
+
+
+
+
+
+
+
+
+
+
+
+
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+
+
+
+
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+
+
+
+
+
+
+
+
+
+
+
+
+
+ Must select one file in the IDE or set run.class
+
+
+
+ Must select one file in the IDE or set run.class
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Must select one file in the IDE or set debug.class
+
+
+
+
+ Must select one file in the IDE or set debug.class
+
+
+
+
+ Must set fix.includes
+
+
+
+
+
+
+
+
+
+ This target only works when run from inside the NetBeans IDE.
+
+
+
+
+
+
+
+
+ Must select one file in the IDE or set profile.class
+ This target only works when run from inside the NetBeans IDE.
+
+
+
+
+
+
+
+
+ This target only works when run from inside the NetBeans IDE.
+
+
+
+
+
+
+
+
+
+
+
+
+ This target only works when run from inside the NetBeans IDE.
+
+
+
+
+
+
+
+
+
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+
+
+
+
+
+
+
+
+
+
+
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+
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+
+
+
+
+
+
+
+
+
+
+
+ Must select one file in the IDE or set run.class
+
+
+
+
+
+ Must select some files in the IDE or set test.includes
+
+
+
+
+ Must select one file in the IDE or set run.class
+
+
+
+
+ Must select one file in the IDE or set applet.url
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
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+
+
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+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Must select some files in the IDE or set javac.includes
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Some tests failed; see details above.
+
+
+
+
+
+
+
+
+ Must select some files in the IDE or set test.includes
+
+
+
+ Some tests failed; see details above.
+
+
+
+ Must select some files in the IDE or set test.class
+ Must select some method in the IDE or set test.method
+
+
+
+ Some tests failed; see details above.
+
+
+
+
+ Must select one file in the IDE or set test.class
+
+
+
+ Must select one file in the IDE or set test.class
+ Must select some method in the IDE or set test.method
+
+
+
+
+
+
+
+
+
+
+
+
+
+ Must select one file in the IDE or set applet.url
+
+
+
+
+
+
+
+
+ Must select one file in the IDE or set applet.url
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
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+
+
+
+
+
diff --git a/nbproject/genfiles.properties b/nbproject/genfiles.properties
new file mode 100644
index 0000000..11b1627
--- /dev/null
+++ b/nbproject/genfiles.properties
@@ -0,0 +1,8 @@
+build.xml.data.CRC32=35e2b44d
+build.xml.script.CRC32=ca968c1d
+build.xml.stylesheet.CRC32=8064a381@1.80.1.48
+# This file is used by a NetBeans-based IDE to track changes in generated files such as build-impl.xml.
+# Do not edit this file. You may delete it but then the IDE will never regenerate such files for you.
+nbproject/build-impl.xml.data.CRC32=35e2b44d
+nbproject/build-impl.xml.script.CRC32=ae62c18d
+nbproject/build-impl.xml.stylesheet.CRC32=830a3534@1.80.1.48
diff --git a/nbproject/private/config.properties b/nbproject/private/config.properties
new file mode 100644
index 0000000..e69de29
diff --git a/nbproject/private/private.properties b/nbproject/private/private.properties
new file mode 100644
index 0000000..fadbf98
--- /dev/null
+++ b/nbproject/private/private.properties
@@ -0,0 +1,6 @@
+compile.on.save=true
+do.depend=false
+do.jar=true
+javac.debug=true
+javadoc.preview=true
+user.properties.file=C:\\Users\\Kaustubh\\AppData\\Roaming\\NetBeans\\8.2\\build.properties
diff --git a/nbproject/private/private.xml b/nbproject/private/private.xml
new file mode 100644
index 0000000..97ed477
--- /dev/null
+++ b/nbproject/private/private.xml
@@ -0,0 +1,12 @@
+
+
+
+
+
+ file:/E:/workspace3/LuceneNewsSearch-Final/src/lucene_read_file/new_index_writer.java
+ file:/E:/workspace3/LuceneNewsSearch-Final/src/lucene_read_file/NewJFrame1.java
+ file:/E:/workspace3/LuceneNewsSearch-Final/src/lucene_read_file/LuceneReadIndexFromExample_new.java
+ file:/E:/workspace3/LuceneNewsSearch-Final/src/lucene_read_file/BM25FSimilarity.java
+
+
+
diff --git a/nbproject/project.properties b/nbproject/project.properties
new file mode 100644
index 0000000..79b3feb
--- /dev/null
+++ b/nbproject/project.properties
@@ -0,0 +1,105 @@
+annotation.processing.enabled=true
+annotation.processing.enabled.in.editor=false
+annotation.processing.processors.list=
+annotation.processing.run.all.processors=true
+annotation.processing.source.output=${build.generated.sources.dir}/ap-source-output
+application.title=lucene_read_file
+application.vendor=Kaustubh
+auxiliary.org-netbeans-modules-projectimport-eclipse-core.key=src=src;file=C:/lucene/lucene-6.2.0/queryparser/lucene-queryparser-6.2.0.jar;file=C:/lucene/lucene-6.2.0/core/lucene-core-6.2.0.jar;file=C:/lucene/lucene-6.2.0/analysis/common/lucene-analyzers-common-6.2.0.jar;output=bin;
+auxiliary.org-netbeans-modules-projectimport-eclipse-core.project=.
+auxiliary.org-netbeans-modules-projectimport-eclipse-core.timestamp=1544344642000
+auxiliary.org-netbeans-modules-projectimport-eclipse-core.workspace=..
+auxiliary.org-netbeans-spi-editor-hints-projects.perProjectHintSettingsFile=nbproject/cfg_hints.xml
+build.classes.dir=${build.dir}/classes
+build.classes.excludes=**/*.java,**/*.form
+# This directory is removed when the project is cleaned:
+build.dir=build
+build.generated.dir=${build.dir}/generated
+build.generated.sources.dir=${build.dir}/generated-sources
+# Only compile against the classpath explicitly listed here:
+build.sysclasspath=ignore
+build.test.classes.dir=${build.dir}/test/classes
+build.test.results.dir=${build.dir}/test/results
+# Uncomment to specify the preferred debugger connection transport:
+#debug.transport=dt_socket
+debug.classpath=\
+ ${run.classpath}
+debug.test.classpath=\
+ ${run.test.classpath}
+# Files in build.classes.dir which should be excluded from distribution jar
+dist.archive.excludes=
+# This directory is removed when the project is cleaned:
+dist.dir=dist
+dist.jar=${dist.dir}/lucene_read_file.jar
+dist.javadoc.dir=${dist.dir}/javadoc
+endorsed.classpath=
+excludes=
+file.reference.lucene-analyzers-common-6.2.0.jar=C:\\lucene\\lucene-6.2.0\\analysis\\common\\lucene-analyzers-common-6.2.0.jar
+file.reference.lucene-core-6.2.0.jar=C:\\lucene\\lucene-6.2.0\\core\\lucene-core-6.2.0.jar
+file.reference.lucene-queryparser-6.2.0.jar=C:\\lucene\\lucene-6.2.0\\queryparser\\lucene-queryparser-6.2.0.jar
+file.reference.LuceneNewsSearch-Final-src=src
+includes=**
+jar.archive.disabled=${jnlp.enabled}
+jar.compress=false
+jar.index=${jnlp.enabled}
+javac.classpath=\
+ ${file.reference.lucene-queryparser-6.2.0.jar}:\
+ ${file.reference.lucene-core-6.2.0.jar}:\
+ ${file.reference.lucene-analyzers-common-6.2.0.jar}
+# Space-separated list of extra javac options
+javac.compilerargs=
+javac.deprecation=false
+javac.external.vm=true
+javac.processorpath=\
+ ${javac.classpath}
+javac.source=1.8
+javac.target=1.8
+javac.test.classpath=\
+ ${javac.classpath}:\
+ ${build.classes.dir}
+javac.test.processorpath=\
+ ${javac.test.classpath}
+javadoc.additionalparam=
+javadoc.author=false
+javadoc.encoding=${source.encoding}
+javadoc.noindex=false
+javadoc.nonavbar=false
+javadoc.notree=false
+javadoc.private=false
+javadoc.splitindex=true
+javadoc.use=true
+javadoc.version=false
+javadoc.windowtitle=
+jnlp.codebase.type=no.codebase
+jnlp.descriptor=application
+jnlp.enabled=false
+jnlp.mixed.code=default
+jnlp.offline-allowed=false
+jnlp.signed=false
+jnlp.signing=
+jnlp.signing.alias=
+jnlp.signing.keystore=
+main.class=lucene_read_file.NewJFrame1
+# Optional override of default Application-Library-Allowable-Codebase attribute identifying the locations where your signed RIA is expected to be found.
+manifest.custom.application.library.allowable.codebase=
+# Optional override of default Caller-Allowable-Codebase attribute identifying the domains from which JavaScript code can make calls to your RIA without security prompts.
+manifest.custom.caller.allowable.codebase=
+# Optional override of default Codebase manifest attribute, use to prevent RIAs from being repurposed
+manifest.custom.codebase=
+# Optional override of default Permissions manifest attribute (supported values: sandbox, all-permissions)
+manifest.custom.permissions=
+meta.inf.dir=${src.dir}/META-INF
+mkdist.disabled=false
+platform.active=default_platform
+run.classpath=\
+ ${javac.classpath}:\
+ ${build.classes.dir}
+# Space-separated list of JVM arguments used when running the project.
+# You may also define separate properties like run-sys-prop.name=value instead of -Dname=value.
+# To set system properties for unit tests define test-sys-prop.name=value:
+run.jvmargs=
+run.test.classpath=\
+ ${javac.test.classpath}:\
+ ${build.test.classes.dir}
+source.encoding=UTF-8
+src.dir=${file.reference.LuceneNewsSearch-Final-src}
diff --git a/nbproject/project.xml b/nbproject/project.xml
new file mode 100644
index 0000000..2efb08a
--- /dev/null
+++ b/nbproject/project.xml
@@ -0,0 +1,13 @@
+
+
+ org.netbeans.modules.java.j2seproject
+
+
+ lucene_read_file
+
+
+
+
+
+
+
diff --git a/src/lucene_read_file/BM25FSimilarity.java b/src/lucene_read_file/BM25FSimilarity.java
index 29ec933..43f37d6 100644
--- a/src/lucene_read_file/BM25FSimilarity.java
+++ b/src/lucene_read_file/BM25FSimilarity.java
@@ -1,19 +1,4 @@
package lucene_read_file;
-/*Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
import java.io.IOException;
@@ -30,23 +15,12 @@
import org.apache.lucene.util.BytesRef;
import org.apache.lucene.util.SmallFloat;
-/**
- * BM25 Similarity. Introduced in Stephen E. Robertson, Steve Walker,
- * Susan Jones, Micheline Hancock-Beaulieu, and Mike Gatford. Okapi at TREC-3.
- * In Proceedings of the Third Text REtrieval Conference (TREC 1994).
- * Gaithersburg, USA, November 1994.
- */
+
public class BM25FSimilarity extends Similarity {
private final float k1;
private final float b;
- /**
- * BM25 with the supplied parameter values.
- * @param k1 Controls non-linear term frequency normalization (saturation).
- * @param b Controls to what degree document length normalizes tf values.
- * @throws IllegalArgumentException if {@code k1} is infinite or negative, or if {@code b} is
- * not within the range {@code [0..1]}
- */
+
public BM25FSimilarity(float k1, float b) {
if ((Float.isFinite(k1) == false) || (k1 < 0)) {
throw new IllegalArgumentException("illegal k1 value: " + k1 + ", must be a non-negative finite value");
@@ -58,80 +32,68 @@ public BM25FSimilarity(float k1, float b) {
this.b = b;
}
- /** BM25 with these default values:
- *
- * - {@code k1 = 1.2}
- * - {@code b = 0.75}
- *
- */
+
public BM25FSimilarity() {
this(1.2f, 0.75f);
}
- /** Implemented as log(1 + (docCount - docFreq + 0.5)/(docFreq + 0.5)). */
+
protected float idf(long docFreq, long docCount) {
return (float) Math.log(1 + (docCount - docFreq + 0.5D)/(docFreq + 0.5D));
}
- /** Implemented as 1 / (distance + 1). */
+
+
+
+
+
protected float sloppyFreq(int distance) {
return 1.0f / (distance + 1);
}
- /** The default implementation returns 1 */
+
protected float scorePayload(int doc, int start, int end, BytesRef payload) {
return 1;
}
- /** The default implementation computes the average as sumTotalTermFreq / docCount,
- * or returns 1 if the index does not store sumTotalTermFreq:
- * any field that omits frequency information). */
+
+
+
+
protected float avgFieldLength(CollectionStatistics collectionStats) {
final long sumTotalTermFreq = collectionStats.sumTotalTermFreq();
if (sumTotalTermFreq <= 0) {
- return 1f; // field does not exist, or stat is unsupported
+ return 1f;
} else {
final long docCount = collectionStats.docCount() == -1 ? collectionStats.maxDoc() : collectionStats.docCount();
return (float) (sumTotalTermFreq / (double) docCount);
}
}
- /** The default implementation encodes boost / sqrt(length)
- * with {@link SmallFloat#floatToByte315(float)}. This is compatible with
- * Lucene's default implementation. If you change this, then you should
- * change {@link #decodeNormValue(byte)} to match. */
+
protected byte encodeNormValue(float boost, int fieldLength) {
return SmallFloat.floatToByte315(boost / (float) Math.sqrt(fieldLength));
}
- /** The default implementation returns 1 / f2
- * where f is {@link SmallFloat#byte315ToFloat(byte)}. */
+
protected float decodeNormValue(byte b) {
return NORM_TABLE[b & 0xFF];
}
- /**
- * True if overlap tokens (tokens with a position of increment of zero) are
- * discounted from the document's length.
- */
+
protected boolean discountOverlaps = true;
- /** Sets whether overlap tokens (Tokens with 0 position increment) are
- * ignored when computing norm. By default this is true, meaning overlap
- * tokens do not count when computing norms. */
+
public void setDiscountOverlaps(boolean v) {
discountOverlaps = v;
}
- /**
- * Returns true if overlap tokens are discounted from the document's length.
- * @see #setDiscountOverlaps
- */
+
public boolean getDiscountOverlaps() {
return discountOverlaps;
}
- /** Cache of decoded bytes. */
+
private static final float[] NORM_TABLE = new float[256];
static {
@@ -149,28 +111,7 @@ public final long computeNorm(FieldInvertState state) {
return encodeNormValue(state.getBoost(), numTerms);
}
- /**
- * Computes a score factor for a simple term and returns an explanation
- * for that score factor.
- *
- *
- * The default implementation uses:
- *
- *
- * idf(docFreq, docCount);
- *
- *
- * Note that {@link CollectionStatistics#docCount()} is used instead of
- * {@link org.apache.lucene.index.IndexReader#numDocs() IndexReader#numDocs()} because also
- * {@link TermStatistics#docFreq()} is used, and when the latter
- * is inaccurate, so is {@link CollectionStatistics#docCount()}, and in the same direction.
- * In addition, {@link CollectionStatistics#docCount()} does not skew when fields are sparse.
- *
- * @param collectionStats collection-level statistics
- * @param termStats term-level statistics for the term
- * @return an Explain object that includes both an idf score factor
- and an explanation for the term.
- */
+
public Explanation idfExplain(CollectionStatistics collectionStats, TermStatistics termStats) {
final long df = termStats.docFreq();
final long docCount = collectionStats.docCount() == -1 ? collectionStats.maxDoc() : collectionStats.docCount();
@@ -178,19 +119,7 @@ public Explanation idfExplain(CollectionStatistics collectionStats, TermStatisti
return Explanation.match(idf, "idf(docFreq=" + df + ", docCount=" + docCount + ")");
}
- /**
- * Computes a score factor for a phrase.
- *
- *
- * The default implementation sums the idf factor for
- * each term in the phrase.
- *
- * @param collectionStats collection-level statistics
- * @param termStats term-level statistics for the terms in the phrase
- * @return an Explain object that includes both an idf
- * score factor for the phrase and an explanation
- * for each term.
- */
+
public Explanation idfExplain(CollectionStatistics collectionStats, TermStatistics termStats[]) {
final long docCount = collectionStats.docCount() == -1 ? collectionStats.maxDoc() : collectionStats.docCount();
float idf = 0.0f;
@@ -334,18 +263,12 @@ public String toString() {
return "BM25(k1=" + k1 + ",b=" + b + ")";
}
- /**
- * Returns the k1 parameter
- * @see #BM25FSimilarity(float, float)
- */
+
public final float getK1() {
return k1;
}
- /**
- * Returns the b parameter
- * @see #BM25FSimilarity(float, float)
- */
+
public final float getB() {
return b;
}
diff --git a/src/lucene_read_file/LuceneReadIndexFromExample_new.java b/src/lucene_read_file/LuceneReadIndexFromExample_new.java
index 0fe2c8e..da24947 100644
--- a/src/lucene_read_file/LuceneReadIndexFromExample_new.java
+++ b/src/lucene_read_file/LuceneReadIndexFromExample_new.java
@@ -6,6 +6,8 @@
import java.io.IOException;
import java.nio.file.Paths;
import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
import java.util.regex.*;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
@@ -36,121 +38,134 @@
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.RAMDirectory;
+import org.apache.lucene.index.MultiFields;
+import org.apache.lucene.index.Term;
+import org.apache.lucene.index.Terms;
+import org.apache.lucene.index.TermsEnum;
+import org.apache.lucene.queryparser.classic.MultiFieldQueryParser;
+import org.apache.lucene.queryparser.classic.QueryParser;
+import org.apache.lucene.search.IndexSearcher;
+import org.apache.lucene.search.PhraseQuery;
+import org.apache.lucene.search.Query;
+import org.apache.lucene.search.ScoreDoc;
+import org.apache.lucene.search.TopDocs;
+import org.apache.lucene.search.TopScoreDocCollector;
+import org.apache.lucene.store.Directory;
+import org.apache.lucene.store.FSDirectory;
+import org.apache.lucene.util.BytesRef;
+
import java.io.IOException;
+import java.util.Arrays;
+import org.apache.lucene.analysis.core.SimpleAnalyzer;
+import org.apache.lucene.analysis.core.WhitespaceAnalyzer;
public class LuceneReadIndexFromExample_new
{
//directory contains the lucene indexes
private static final String INDEX_DIR = "indexedFiles";
- public static void main(String[] args) throws Exception
+ public static ArrayList pmain(String queryTerm) throws Exception
{
- //Create lucene searcher. It search over a single IndexReader.
- IndexSearcher searcher = createSearcher();
-
- //Search indexed contents using search term
- String queryString= "Fret 31-12-2016 WASHINGTON";
- ArrayList extractedDates=getDates(queryString);
- ArrayList processedDates=processDates(extractedDates);
- ArrayList foundDateDocs=new ArrayList();
-// for(int i=0;i res = new ArrayList();
+ FSDirectory dir = FSDirectory.open(Paths.get(INDEX_DIR));
+ IndexReader reader = DirectoryReader.open(dir);
+// test(reader);
+ IndexSearcher searcher = new IndexSearcher(reader);
+ //String queryTerm="Trump Winter 2016-12-31";
+ if(queryTerm.compareTo("")==0){
+ System.exit(0);
+ }
+
+ System.out.println(queryTerm);
+// queryTerm=soundexSentence(queryTerm);
+ Map boost = new HashMap();
+ boost.put("date",0.5f);
+ boost.put("title",0.25f);
+ boost.put("body",0.25f);
+
+
+
+ MultiFieldQueryParser qp = new MultiFieldQueryParser(new String[] {"date","title","body"}, new StandardAnalyzer(),boost);
+// MultiFieldQueryParser qp = new MultiFieldQueryParser(new String[] {"description","name","year","location","developer"}, new StandardAnalyzer(),boost);
+ MultiFieldQueryParser qp2 = new MultiFieldQueryParser(new String[] {"date","title","body"},new WhitespaceAnalyzer(),boost);
+
+ Query query = qp.parse(queryTerm);
+ System.out.println(query);
+ ArrayList dates_query= getDates(queryTerm);
+// System.out.println("OK");
+// System.out.println(dates_query.size());
+ float[] myarr=new float[101];
+ if(!dates_query.isEmpty()){
+ ArrayList processed_dates= processDates(dates_query);
+ String queryTerm2="";
+ for(int i=0;i arr=new ArrayList();
-// //Merging to be done
-// //System.out.println("Date Match:");
-//// for(int i=0;i getDates(String queryString){
@@ -233,6 +248,7 @@ private static IndexSearcher createSearcher() throws IOException
//Index searcher
IndexSearcher searcher = new IndexSearcher(reader);
+ searcher.setSimilarity(new BM25FSimilarity());
return searcher;
}
}
diff --git a/src/lucene_read_file/LuceneReadIndexFromFileExample.java b/src/lucene_read_file/LuceneReadIndexFromFileExample.java
index 3f3a6e8..085cbd3 100644
--- a/src/lucene_read_file/LuceneReadIndexFromFileExample.java
+++ b/src/lucene_read_file/LuceneReadIndexFromFileExample.java
@@ -1,26 +1,25 @@
package lucene_read_file;
-import java.awt.List;
-
+
import java.io.IOException;
import java.nio.file.Paths;
-import java.util.ArrayList;
-import java.util.regex.*;
+import java.util.Arrays;
import org.apache.lucene.analysis.standard.StandardAnalyzer;
import org.apache.lucene.document.Document;
import org.apache.lucene.index.DirectoryReader;
import org.apache.lucene.index.IndexReader;
-import org.apache.lucene.index.Term;
import org.apache.lucene.queryparser.classic.QueryParser;
import org.apache.lucene.search.IndexSearcher;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.ScoreDoc;
import org.apache.lucene.search.TopDocs;
+import org.apache.lucene.search.similarities.BM25Similarity;
+import org.apache.lucene.search.similarities.ClassicSimilarity;
+import org.apache.lucene.search.similarities.TFIDFSimilarity;
import org.apache.lucene.store.Directory;
import org.apache.lucene.store.FSDirectory;
-import org.apache.lucene.search.PhraseQuery;
public class LuceneReadIndexFromFileExample
{
@@ -33,157 +32,38 @@ public static void main(String[] args) throws Exception
IndexSearcher searcher = createSearcher();
//Search indexed contents using search term
- String queryString= "Winter 2016-12-31 WASHINGTON";
- ArrayList extractedDates=getDates(queryString);
- ArrayList processedDates=processDates(extractedDates);
- ArrayList foundDateDocs=new ArrayList();
- for(int i=0;i arr=new ArrayList();
- //Merging to be done
- //System.out.println("Date Match:");
-// for(int i=0;i getDates(String queryString){
- Matcher m = Pattern.compile("(\\d{4}/\\d{2}/\\d{2}|\\d{2}/\\d{2}/\\d{4}|\\d{2}-\\d{2}-\\d{4}|\\d{4}-\\d{2}-\\d{2})",
- Pattern.CASE_INSENSITIVE).matcher(queryString);
- ArrayList mydates=new ArrayList();
- while (m.find()) {
- //System.out.println(m.group(1));
- mydates.add(m.group(1));
- }
- return mydates;
- }
-
- private static String convertDate(String date){
- String returnDate=date;
- if(date.charAt(2)=='/'){
- String newDate[]=date.split("/");
- returnDate=newDate[2]+"-"+newDate[1]+"-"+newDate[0];
- }
- else if(date.charAt(2)=='-'){
- String newDate[]=date.split("-");
- returnDate=newDate[2]+"-"+newDate[1]+"-"+newDate[0];
- }
- else if(date.charAt(4)=='/'){
- returnDate=date.replace('/', '-');
- }
- return returnDate;
- }
-
- private static ArrayList processDates(ArrayList extractedDates){
- ArrayList processedDates=new ArrayList();
- for(int i=0;iterm and then adding the new
//document. The delete and then add are atomic as seen
@@ -138,4 +113,4 @@ static void indexDoc(IndexWriter writer, Path file, long lastModified) throws IO
writer.updateDocument(new Term("path", file.toString()), doc);
}
}
-}
+}
\ No newline at end of file
diff --git a/src/lucene_read_file/NewJFrame1.form b/src/lucene_read_file/NewJFrame1.form
new file mode 100644
index 0000000..a4e5cbc
--- /dev/null
+++ b/src/lucene_read_file/NewJFrame1.form
@@ -0,0 +1,106 @@
+
+
+
diff --git a/src/lucene_read_file/NewJFrame1.java b/src/lucene_read_file/NewJFrame1.java
new file mode 100644
index 0000000..252d194
--- /dev/null
+++ b/src/lucene_read_file/NewJFrame1.java
@@ -0,0 +1,169 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package lucene_read_file;
+
+import java.util.ArrayList;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+/**
+ *
+ * @author Kaustubh
+ */
+public class NewJFrame1 extends javax.swing.JFrame {
+
+ /**
+ * Creates new form NewJFrame1
+ */
+ public NewJFrame1() {
+ initComponents();
+ jButton1.setEnabled(false);
+ }
+
+ /**
+ * This method is called from within the constructor to initialize the form.
+ * WARNING: Do NOT modify this code. The content of this method is always
+ * regenerated by the Form Editor.
+ */
+ @SuppressWarnings("unchecked")
+ // //GEN-BEGIN:initComponents
+ private void initComponents() {
+
+ jLabel1 = new javax.swing.JLabel();
+ jTextField1 = new javax.swing.JTextField();
+ jButton1 = new javax.swing.JButton();
+ jScrollPane1 = new javax.swing.JScrollPane();
+ jTextArea1 = new javax.swing.JTextArea();
+ jButton2 = new javax.swing.JButton();
+
+ setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
+
+ jLabel1.setText("Query");
+
+ jButton1.setText("Search");
+ jButton1.addActionListener(new java.awt.event.ActionListener() {
+ public void actionPerformed(java.awt.event.ActionEvent evt) {
+ jButton1ActionPerformed(evt);
+ }
+ });
+
+ jTextArea1.setColumns(20);
+ jTextArea1.setRows(5);
+ jScrollPane1.setViewportView(jTextArea1);
+
+ jButton2.setText("Write Index");
+ jButton2.addActionListener(new java.awt.event.ActionListener() {
+ public void actionPerformed(java.awt.event.ActionEvent evt) {
+ jButton2ActionPerformed(evt);
+ }
+ });
+
+ javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
+ getContentPane().setLayout(layout);
+ layout.setHorizontalGroup(
+ layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+ .addGroup(layout.createSequentialGroup()
+ .addComponent(jScrollPane1)
+ .addContainerGap())
+ .addGroup(layout.createSequentialGroup()
+ .addGap(111, 111, 111)
+ .addComponent(jButton1)
+ .addGap(86, 86, 86)
+ .addComponent(jButton2)
+ .addContainerGap(javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
+ .addGroup(layout.createSequentialGroup()
+ .addGap(28, 28, 28)
+ .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, 57, javax.swing.GroupLayout.PREFERRED_SIZE)
+ .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 60, Short.MAX_VALUE)
+ .addComponent(jTextField1, javax.swing.GroupLayout.PREFERRED_SIZE, 291, javax.swing.GroupLayout.PREFERRED_SIZE)
+ .addGap(61, 61, 61))
+ );
+ layout.setVerticalGroup(
+ layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
+ .addGroup(layout.createSequentialGroup()
+ .addGap(32, 32, 32)
+ .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
+ .addComponent(jLabel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
+ .addComponent(jTextField1, javax.swing.GroupLayout.DEFAULT_SIZE, 38, Short.MAX_VALUE))
+ .addGap(18, 18, 18)
+ .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
+ .addComponent(jButton1)
+ .addComponent(jButton2))
+ .addGap(48, 48, 48)
+ .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 256, Short.MAX_VALUE)
+ .addContainerGap())
+ );
+
+ pack();
+ }// //GEN-END:initComponents
+
+ private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
+ // TODO add your handling code here:
+ LuceneReadIndexFromExample_new e =new LuceneReadIndexFromExample_new();
+ String query = jTextField1.getText();
+ jTextArea1.setText(" ");
+ try {
+ ArrayList res=e.pmain(query);
+ for(int i=0;i
+ /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
+ * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html
+ */
+ try {
+ for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
+ if ("Nimbus".equals(info.getName())) {
+ javax.swing.UIManager.setLookAndFeel(info.getClassName());
+ break;
+ }
+ }
+ } catch (ClassNotFoundException ex) {
+ java.util.logging.Logger.getLogger(NewJFrame1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+ } catch (InstantiationException ex) {
+ java.util.logging.Logger.getLogger(NewJFrame1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+ } catch (IllegalAccessException ex) {
+ java.util.logging.Logger.getLogger(NewJFrame1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+ } catch (javax.swing.UnsupportedLookAndFeelException ex) {
+ java.util.logging.Logger.getLogger(NewJFrame1.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
+ }
+ //
+
+ /* Create and display the form */
+ java.awt.EventQueue.invokeLater(new Runnable() {
+ public void run() {
+ new NewJFrame1().setVisible(true);
+
+ }
+ });
+ }
+
+ // Variables declaration - do not modify//GEN-BEGIN:variables
+ private javax.swing.JButton jButton1;
+ private javax.swing.JButton jButton2;
+ private javax.swing.JLabel jLabel1;
+ private javax.swing.JScrollPane jScrollPane1;
+ private javax.swing.JTextArea jTextArea1;
+ private javax.swing.JTextField jTextField1;
+ // End of variables declaration//GEN-END:variables
+}
diff --git a/src/lucene_read_file/new_index_writer.java b/src/lucene_read_file/new_index_writer.java
index f68e606..d44e59f 100644
--- a/src/lucene_read_file/new_index_writer.java
+++ b/src/lucene_read_file/new_index_writer.java
@@ -52,19 +52,19 @@ public Similarity get(String name) {
// return new BM25FSimilarity(/*k1*/1.4f, /*b*/0.9f);
// }
if (name.equals("body")) {
- return new BM25FSimilarity(/*k1*/1.2f, /*b*/0.8f);
+ return new BM25FSimilarity(/*k1*/0.6f, /*b*/0.75f);
}
else if (name.equals("title")) {
- return new BM25FSimilarity(/*k1*/1.2f, /*b*/0.8f);
+ return new BM25FSimilarity(/*k1*/0.6f, /*b*/0.75f);
}
else if (name.equals("date")) {
- return new BM25FSimilarity(/*k1*/1.4f, /*b*/0.9f);
+ return new BM25FSimilarity(/*k1*/1.4f, /*b*/0.8f);
}
return new BM25FSimilarity();
}
};
- public static void main(String[] args)
+ public static void smain()
{
//Input folder
String docsPath = "myfiles";
@@ -86,7 +86,7 @@ public static void main(String[] args)
//IndexWriter Configuration
IndexWriterConfig iwc = new IndexWriterConfig(analyzer);
iwc.setSimilarity(perFieldSimilarities);
- iwc.setOpenMode(OpenMode.CREATE_OR_APPEND);
+// iwc.setOpenMode(OpenMode.CREATE_OR_APPEND);
//IndexWriter writes new index files to the directory
IndexWriter writer = new IndexWriter(dir, iwc);