Word2vec (CBOW, Skip-gram) word vector training based on sentencepiece tool and unicode encoding word segmentation, combined with TextCNN model, replaces the initial word vector for text classification tasks

Word2vec (CBOW, Skip-gram) word vector training based on sentencepiece tool and unicode encoding word segmentation, combined with TextCNN model, replacing the initial word vector for text classification tasks The experiment done by the blogger this time is difficult, but the idea is very good. I think those with poor foundation may not understand my question. […]

DIP encoder and decoder neural network structure code with skip connections

“”” This code implements an encoder and decoder neural network structure with skip connections 1: Define a function skip that accepts a series of parameters to build the network 2: Ensure that the lengths of parameters num_channels_down, num_channels_up, and num_channels_skip are the same through assert, otherwise an exception will be thrown. Note: These three parameters […]

Marked use cases of pytest automated testing framework (specified execution, skipping use cases, expected failure)

The mark module provided in pytest can implement many functions, such as: Mark use cases, that is, label them Skip and skipif mark skip, skip skips the current use case, and skipif matches the situation and skips the current use case. xfail marks expected failure Mark use cases Sometimes we may not need to execute […]

Why does MySQL use B+ trees instead of skip tables?

Article directory B + tree or skip list B + tree simple code Jump table simple code B + tree or skip table MySQL’s InnoDB storage engine uses B+ trees instead of skip tables because B+ trees have some advantages in relational database systems, especially in handlingrange queries, transaction processing, and data persistence. The following […]

The underlying implementation of Redis ordered collection zset – ZipList (compressed list) and SkipList (skip list)

1. Description zset is an ordered set, and the key of zset is non-repeatable. 2. Function Commonly used for functions such as rankings 3. Use commands 1. Add: zadd zadd [ redis_key ] [ zset_key ] [ zset_value ] … example: zadd player 99 Xiaobai 87 Xiaohong 2.5 Wutiao 2. Delete: zrem Example: Delete Xiaohong […]

RestTemplate developed by Spring Boot skips the certificate to access https

In the Spring Boot project, RestTemplate is used directly to send requests to access the https address. If the JDK does not import the certificate, an unable to find valid certification path to requested target error will appear. . This chapter explains how to bypass the certificate to access https addresses. 2022-04-30 00:22:33.370 ERROR 808 […]

Skip ssl certificate verification when calling https request using RestTemplate

1. Required jar package (cv is enough) <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>5.0.7.RELEASE</version> </dependency> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.58</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-core</artifactId> <version>2.9.5</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.9.5</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-annotations</artifactId> <version>2.9.5</version> </dependency> <dependency> <groupId>com.fasterxml.jackson.module</groupId> <artifactId>jackson-module-jaxb-annotations</artifactId> <version>2.9.5</version> </dependency> 2. Enumeration class (only used as demo) import java.text.SimpleDateFormat; import java.util.Date; import java.util.UUID; /** * @ClassName TestEnum * […]

HttpURLConnection skips ssl verification

When using HttpURLConnection to link https resources, the verification fails and the error is reported as follows: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.ssl.Alerts.getSSLException(Alerts.java:192) at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1964) at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:328) at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:322) at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1614) at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216) at sun.security.ssl.Handshaker.processLoop(Handshaker.java:1052) at sun.security.ssl.Handshaker.process_record(Handshaker.java:987) at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1072) at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1385) at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1413) […]

httpclient3.1 skips ssl verification

The original old project calls an Http service. Recently, the http service has been adjusted to https, so it needs to be adjusted. Most of the online versions are 4.5 or above, and the 3.1 version has relatively few processing methods, so record it. 1. Implement two classes 1.MyX509TrustManager import java.security.cert.CertificateException; import java.security.cert.X509Certificate; import javax.net.ssl.X509TrustManager; […]

Use PyTorch to implement the Skip-gram model in Word2Vec

First, a custom data set using the Word2VecDataset class is created to generate training data. Then, the Skip-gram model is defined and trained using the cross-entropy loss function and Adam optimizer. In each training epoch, the data loader is traversed, forward-propagating, computing loss, back-propagating, and weight updates for each batch. Finally, the trained word vector […]