Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Use NIO for CBModel to increase performance
- Loading branch information
Showing
13 changed files
with
126 additions
and
158 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,144 +1,40 @@ | ||
| /** | ||
| * Created锛�May 9, 2013 12:22:21 PM | ||
| * Project锛�ThulacJava | ||
| * | ||
| * @author cxx | ||
| * @since JDK 1.6.0_13 | ||
| * filename锛�CBModel.java | ||
| * description锛� | ||
| */ | ||
| package org.thunlp.thulac.cb; | ||
|
|
||
| import java.io.File; | ||
| import org.thunlp.thulac.util.BufferUtils; | ||
|
|
||
| import java.io.FileInputStream; | ||
| import java.io.FileOutputStream; | ||
| import java.io.IOException; | ||
| import java.nio.ByteBuffer; | ||
| import java.nio.ByteOrder; | ||
| import java.nio.IntBuffer; | ||
| import java.nio.channels.FileChannel; | ||
|
|
||
| public class CBModel { | ||
|
|
||
| private static int DEC = 1000; | ||
|
|
||
| public int l_size; //size of the labels | ||
| public int f_size; //size of the features | ||
| public int l_size; // size of the labels | ||
| public int f_size; // size of the features | ||
|
|
||
| public int[] ll_weights; // weights of (label, label) | ||
| public int[] fl_weights; // weights of (feature, label) | ||
|
|
||
| public double[] ave_ll_weights; | ||
| public double[] ave_fl_weights; | ||
|
|
||
| public CBModel(int l, int f) { | ||
| this.l_size = l; | ||
| this.f_size = f; | ||
| this.ll_weights = new int[l * l]; | ||
| this.fl_weights = new int[f * l]; | ||
| this.ave_ll_weights = new double[l * l]; | ||
| this.ave_fl_weights = new double[f * l]; | ||
| } | ||
|
|
||
| public void reset_ave_weights() { | ||
| this.ave_ll_weights = new double[this.l_size * this.l_size]; | ||
| this.ave_fl_weights = new double[this.f_size * this.l_size]; | ||
| } | ||
|
|
||
| public void update_ll_weights(int i, int j, int delta, long steps) { | ||
| int ind = i * this.l_size + j; | ||
| this.ll_weights[ind] += delta; | ||
| this.ave_ll_weights[ind] += steps * delta; | ||
| } | ||
|
|
||
| public void update_fl_weights(int i, int j, int delta, long steps) { | ||
| int ind = i * this.l_size + j; | ||
| this.fl_weights[ind] += delta; | ||
| this.ave_fl_weights[ind] += steps * delta; | ||
| } | ||
|
|
||
| public void average(int step) { | ||
| for (int i = 0; i < this.l_size * this.f_size; i++) { | ||
| this.fl_weights[i] = (int) (((double) this.fl_weights[i] - this.ave_fl_weights[i] / (double) step) * DEC + 0.5); | ||
| } | ||
| for (int i = 0; i < this.l_size * this.l_size; i++) { | ||
| this.ll_weights[i] = (int) ((((double) this.ll_weights[i]) - this.ave_ll_weights[i] / (double) step) * DEC + 0.5); | ||
| } | ||
| } | ||
|
|
||
| public static int bytesToInt(byte[] bb, int index) { | ||
| return (int) ((((bb[index + 3] & 0xff) << 24) | ||
| | ((bb[index + 2] & 0xff) << 16) | ||
| | ((bb[index + 1] & 0xff) << 8) | ((bb[index + 0] & 0xff) << 0))); | ||
| } | ||
|
|
||
| public static byte[] intToBytes(int n) { | ||
| byte[] b = new byte[4]; | ||
| for (int i = 0; i < 4; i++) { | ||
| b[i] = (byte) (n >> (8 * i)); | ||
| } | ||
| return b; | ||
| } | ||
|
|
||
| public CBModel(String filename) throws IOException { | ||
| File file = new File(filename); | ||
| FileInputStream in = new FileInputStream(file); | ||
|
|
||
| byte[] tempbytes = new byte[4]; | ||
| in.read(tempbytes); | ||
| this.l_size = bytesToInt(tempbytes, 0); | ||
| in.read(tempbytes); | ||
| this.f_size = bytesToInt(tempbytes, 0); | ||
|
|
||
| this.ll_weights = new int[this.l_size * this.l_size]; | ||
| tempbytes = new byte[4 * this.ll_weights.length]; | ||
| in.read(tempbytes); | ||
| for (int i = 0; i < this.ll_weights.length; i++) { | ||
| this.ll_weights[i] = bytesToInt(tempbytes, 4 * i); | ||
| } | ||
|
|
||
| this.fl_weights = new int[this.f_size * this.l_size]; | ||
| tempbytes = new byte[4 * this.fl_weights.length]; | ||
| in.read(tempbytes); | ||
| for (int i = 0; i < this.fl_weights.length; i++) { | ||
| this.fl_weights[i] = bytesToInt(tempbytes, 4 * i); | ||
| } | ||
| in.close(); | ||
| } | ||
|
|
||
| public void save(String filename) throws IOException { | ||
| FileOutputStream out = new FileOutputStream(filename); | ||
| out.write(intToBytes(this.l_size)); | ||
| out.write(intToBytes(this.f_size)); | ||
| out.flush(); | ||
| for (int i = 0; i < this.ll_weights.length; i++) { | ||
| out.write(intToBytes(this.ll_weights[i])); | ||
| } | ||
| out.flush(); | ||
| for (int i = 0; i < this.fl_weights.length; i++) { | ||
| out.write(intToBytes(this.fl_weights[i])); | ||
| } | ||
| out.flush(); | ||
| out.close(); | ||
| FileInputStream in = new FileInputStream(filename); | ||
| FileChannel channel = in.getChannel(); | ||
|
|
||
| ByteBuffer header = ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN); | ||
| header.clear(); | ||
| channel.read(header); | ||
| header.flip(); | ||
| IntBuffer intHeader = header.asIntBuffer(); | ||
| this.l_size = intHeader.get(); | ||
| this.f_size = intHeader.get(); | ||
|
|
||
| int llSize = this.l_size * this.l_size, flSize = this.l_size * this.f_size; | ||
| this.ll_weights = new int[llSize]; | ||
| this.fl_weights = new int[flSize]; | ||
| ByteBuffer buf = ByteBuffer.allocate(64 * 1024).order(ByteOrder.LITTLE_ENDIAN); | ||
| buf.clear(); | ||
| BufferUtils.readInts(channel, buf, this.ll_weights, this.fl_weights); | ||
|
|
||
| channel.close(); | ||
| } | ||
|
|
||
| /** | ||
| * <p>Title:main</p> | ||
| * <p>Description:<p> | ||
| * | ||
| * @param args | ||
| */ | ||
| public static void main(String[] args) { | ||
| // TODO Auto-generated method stub | ||
| /* | ||
| int[] weights = new int[3]; | ||
| weights[0] = 1; | ||
| weights[1] = 3; | ||
| weights[2] = 5; | ||
| for(int i = 0;i < weights.length ; i ++){ | ||
| System.out.println(weights[i]); | ||
| } | ||
| weights = new int[4]; | ||
| for(int i = 0;i < weights.length ; i ++){ | ||
| System.out.println(weights[i]); | ||
| } | ||
| */ | ||
| } | ||
|
|
||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
8 changes: 4 additions & 4 deletions
8
src/main/java/org/thunlp/thulac/postprocess/TimeWordPass.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.