概述

智能语义理解（Intelligent Semantic Understanding）依托阿里巴巴在深度学习、自然语言处理方向上的技术积累，为客户提供文本相似度和机器阅读理解等优质算法技术。其中文本相似度可以计算两段短文本之间的相似度，并给出相似度评分；机器阅读理解能针对某几个问题，从若干篇文章中分别寻找问题答案。智能语义理解技术可以应用于问答系统、信息检索、新闻推荐等场景。下面主要介绍该产品的开通及使用。

Step By Step

1、开通服务，公测申请地址。

2、开通后控制台概览

3、操作步骤，可以在控制台快速查看创建项目，然后查看进程

4、使用SDK进行相关操作

• 4.1 pom.xml

        <dependencies>
            <dependency>
                <groupId>com.aliyun</groupId>
                <artifactId>aliyun-java-sdk-iqa</artifactId>
                <version>1.0.0</version>
            </dependency>
            <dependency>
                <groupId>com.aliyun</groupId>
                <artifactId>aliyun-java-sdk-core</artifactId>
                <version>4.4.9</version>
            </dependency>
        </dependencies>

• 4.2 code sample

import com.aliyuncs.DefaultAcsClient;
import com.aliyuncs.IAcsClient;
import com.aliyuncs.exceptions.ClientException;
import com.aliyuncs.iqa.model.v20190813.*;
import com.aliyuncs.profile.DefaultProfile;

public class demo1 {
    public static void main(String[] args) throws ClientException {
        DefaultProfile profile = DefaultProfile.getProfile(
                "cn-hangzhou",
                "LTAIOZZgYX******",
                "v7CjUJCMk7j9aKduMAQLjy********");
        IAcsClient client = new DefaultAcsClient(profile);

        // 调用ListProjects获取项目列表
        ListProjectsRequest request = new ListProjectsRequest();
        request.setProjectType("faq");
        ListProjectsResponse response = client.getAcsResponse(request);
        System.out.println("项目数量： " + response.getTotalCount());

//        // 调用CreateProject创建一个项目
//        CreateProjectRequest createProjectRequest = new CreateProjectRequest();
//        createProjectRequest.setModelId("general");
//        createProjectRequest.setProjectName("FaqProjectDemo1");
//        createProjectRequest.setProjectType("faq");
//        CreateProjectResponse createProjectResponse = client.getAcsResponse(createProjectRequest);
//        System.out.println(createProjectResponse.getProjectId());

          String projectId = "nynauj21********";// 使用创建项目获取的ProjectId
//
//        // 调用UploadDictionary上传自定义词表，支持多次调用增量导入，此操作是用来对导入的document增加分词功能，可以不操作
//        UploadDictionaryRequest uploadDictionaryRequest = new UploadDictionaryRequest();
//        uploadDictionaryRequest.setDictionaryFileUrl("http://iqa-console.oss-cn-hangzhou.aliyuncs.com/example/iqa_example_shorttext.xlsx?spm=a2c4g.11186623.2.14.5d7b727d7qG2oF&Expires=2179036688&OSSAccessKeyId=LTAI2WA8174xk3ii&Signature=967zD%2BonZHoVbSZqkmxx8KVcEeI%3D");
//        uploadDictionaryRequest.setProjectId(projectId);
//        UploadDictionaryResponse uploadDictionaryResponse = client.getAcsResponse(uploadDictionaryRequest);
//        System.out.println(uploadDictionaryResponse.getTotalCount());

//        UploadDocumentRequest uploadDocumentRequest = new UploadDocumentRequest();
//        uploadDocumentRequest.setDocumentFileUrl("http://iqa-console.oss-cn-hangzhou.aliyuncs.com/example/iqa_example_shorttext.xlsx?spm=a2c4g.11186623.2.14.5d7b727dtesby4&Expires=2179036688&OSSAccessKeyId=LTAI2WA8174xk3ii&Signature=967zD%2BonZHoVbSZqkmxx8KVcEeI%3D");
//        uploadDocumentRequest.setProjectId(projectId);
//        UploadDocumentResponse uploadDocumentResponse = client.getAcsResponse(uploadDocumentRequest);
//        System.out.println(uploadDocumentResponse.getFileDataCount());

//        // 调用DeployService发布一个项目
//        DeployServiceRequest deployServiceRequest = new DeployServiceRequest();
//        deployServiceRequest.setProjectId(projectId);
//        DeployServiceResponse deployServiceResponse = client.getAcsResponse(deployServiceRequest);
//        System.out.println(deployServiceResponse.getRequestId());

        GetPredictResultRequest getPredictResultRequest = new GetPredictResultRequest();
        getPredictResultRequest.setProjectId(projectId);
        getPredictResultRequest.setQuestion("充话费");
        getPredictResultRequest.setTopK(3);
        GetPredictResultResponse getPredictResultResponse = client.getAcsResponse(getPredictResultRequest);
        for (GetPredictResultResponse.PredictResult predictResult:getPredictResultResponse.getPredictResults()
             ) {
            System.out.println("Question: " + predictResult.getQuestion() + " Answer: " + predictResult.getAnswer() + " Score: " + predictResult.getScore());
        }
    }
}

• 4.3 result

项目数量： 3
Question: 积分怎么充话费 Answer:  Score: 0.9948719
Question: 积分充话费的方式 Answer:  Score: 0.9937389
Question: 我怎么用积分充话费 Answer:  Score: 0.47255847

5、Demo相关解释

• 5.1 UploadDictionary作用：

帮助分词，业务的一些专有词，默认分词分不出来的情况下需要用上传到自定义词表。

• 5.2 上传数据格式参考及解释：数据格式说明。
• 5.3 用户答疑钉钉群号：23162166。（可在文件位置获取产品简介文档，对理解产品有很大帮助）
  

更多参考

什么是智能语义理解
智能语义理解API接口