【原】SAP人工智能服務(wù)Recast.AI的一個(gè)簡(jiǎn)單例子

汪子熙 2019-04-05

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關(guān)于這個(gè)例子的完整介紹，請(qǐng)參考公眾號(hào) “汪子熙”的兩篇文章：

SAP C/4HANA與人工智能和增強(qiáng)現(xiàn)實(shí)(AR)技術(shù)結(jié)合的又一個(gè)創(chuàng)新案例

和使用Recast.AI創(chuàng)建具有人工智能的聊天機(jī)器人：

本文介紹如何用Java代碼同recast.AI網(wǎng)站上創(chuàng)建好的模型交互。

我創(chuàng)建了一個(gè)名為get-product-infomation的機(jī)器學(xué)習(xí)模型，用"Add an expression"下面的這么多句子去喂這個(gè)模型：

一會(huì)測(cè)試時(shí)，我會(huì)用這個(gè)句子進(jìn)行測(cè)試 " I am looking for some materials", 所以先記下來(lái)。

如果任意輸入一句話，recast.AI識(shí)別出來(lái)意圖為get-product-infomation, 我希望AI自動(dòng)返回一些句子，這些句子定義在recast.AI模型的Actions標(biāo)簽頁(yè)下面：

比如這個(gè)Actions模型的意思是，從Sure, what type of product are you going to produce?和Cool, what products do you want to produce?里隨機(jī)挑選一句返回。

下圖右半部份是recast.AI的測(cè)試控制臺(tái)。

下面是用Java代碼方式消費(fèi)這個(gè)人工智能模型的例子：

public class RecastAIService {private final static String RECAST_AI_URL = "https://api./build/v1/dialog";private final static String DEVELOPER_TOKEN = "Token feb6b413a1a8cf8efdd53f48ba1d4";public Answer dialog(final String content, final String conversationId) throws ClientProtocolException, IOException{

CloseableHttpClient httpClient = HttpClients.createDefault();

HttpPost postRequest = new HttpPost(RECAST_AI_URL);

postRequest.addHeader("Authorization", DEVELOPER_TOKEN);

postRequest.addHeader("Content-Type", "application/json");

String body = "{"message": {"content":""

+ content

+ "","type":"text"}, "conversation_id": ""

+ conversationId

+""}";

HttpEntity entity = new StringEntity(body);

postRequest.setEntity(entity);

HttpResponse response = httpClient.execute(postRequest);if(response.getStatusLine().getStatusCode() == 200){

String result = EntityUtils.toString(response.getEntity());

JSONObject resultJsonObj = JSON.parseObject(result);

JSONObject results = (JSONObject) resultJsonObj.get("results");

JSONArray messages = results.getJSONArray("messages");

JSONObject nlp = (JSONObject) results.get("nlp");

JSONArray intents = nlp.getJSONArray("intents");

Answer answer = new Answer();if (null != messages && messages.size() > 0){

JSONObject messageJson = messages.getJSONObject(0);

answer.setContent(messageJson.getString("content"));

}if (null != intents && intents.size() > 0){

JSONObject intentJson = intents.getJSONObject(0);

answer.setIntent(intentJson.getString("slug"));

}return answer;

}

logger.debug("Failed to access recastai. The response code is" + response.getStatusLine().getStatusCode());return null;

}