我一直在关注此处列出的教程 - https://docs.microsoft.com/en-us/azure/cognitive-services/anomaly-detector/quickstarts/detect-data-anomalies-csharp
我已经设置了我的 Anomaly API，所以我准备好了端点和 API 密钥。我已经设置了自己的时间序列数据，为了清楚起见，我将在此处发布（注意：虽然以下内容不起作用，但此处使用相同代码的示例数据确实有效 - https://github.com/Azure-Samples/anomalydetector /blob/master/example-data/request-data.json）：
{
"granularity": "daily",
"series": [
{
"timestamp": "2019-03-27T00:00:00",
"value": 10781.70
},
{
"timestamp": "2019-03-25T00:00:00",
"value": 4058.13
},
{
"timestamp": "2019-03-20T00:00:00",
"value": 8124132.33
},
{
"timestamp": "2019-03-19T00:00:00",
"value": 1571398.97
},
{
"timestamp": "2019-03-18T00:00:00",
"value": 2097703.40
},
{
"timestamp": "2019-03-15T00:00:00",
"value": 10624.76
},
{
"timestamp": "2019-03-14T00:00:00",
"value": 11647.00
},
{
"timestamp": "2019-03-13T00:00:00",
"value": 45937.16
},
{
"timestamp": "2019-03-08T00:00:00",
"value": 4237.20
},
{
"timestamp": "2019-03-07T00:00:00",
"value": 3315.40
},
{
"timestamp": "2019-03-04T00:00:00",
"value": 3218.77
},
{
"timestamp": "2019-02-28T00:00:00",
"value": 11271.00
},
{
"timestamp": "2019-02-27T00:00:00",
"value": 48605.08
},
{
"timestamp": "2019-02-26T00:00:00",
"value": 6181.12
},
{
"timestamp": "2019-02-25T00:00:00",
"value": 45069.00
},
{
"timestamp": "2019-02-22T00:00:00",
"value": 108860.84
},
{
"timestamp": "2019-02-21T00:00:00",
"value": 24924.50
},
{
"timestamp": "2019-02-20T00:00:00",
"value": 4068.50
},
{
"timestamp": "2019-02-19T00:00:00",
"value": 4329.60
},
{
"timestamp": "2019-02-18T00:00:00",
"value": 7615.20
},
{
"timestamp": "2019-02-14T00:00:00",
"value": 56974.10
},
{
"timestamp": "2019-02-13T00:00:00",
"value": 73393.52
},
{
"timestamp": "2019-02-12T00:00:00",
"value": 29991.99
},
{
"timestamp": "2019-02-11T00:00:00",
"value": 2906769.50
},
{
"timestamp": "2019-02-05T00:00:00",
"value": 1956853.85
},
{
"timestamp": "2019-02-04T00:00:00",
"value": 46863.31
},
{
"timestamp": "2019-01-31T00:00:00",
"value": 31602.31
},
{
"timestamp": "2019-01-30T00:00:00",
"value": 13149.59
},
{
"timestamp": "2018-10-10T00:00:00",
"value": 19380.60
},
{
"timestamp": "2018-08-21T00:00:00",
"value": 61801.45
},
{
"timestamp": "2018-08-16T00:00:00",
"value": 843.80
},
{
"timestamp": "2018-08-15T00:00:00",
"value": 52326.20
},
{
"timestamp": "2018-08-14T00:00:00",
"value": 136384.88
},
{
"timestamp": "2018-08-09T00:00:00",
"value": 7224.30
},
{
"timestamp": "2018-07-26T00:00:00",
"value": 16493.08
},
{
"timestamp": "2018-07-24T00:00:00",
"value": 1665163.72
},
{
"timestamp": "2018-07-23T00:00:00",
"value": 38642.88
},
{
"timestamp": "2018-07-13T00:00:00",
"value": 49913.00
},
{
"tim estamp": "2018-07-12T00:00:00",
"value": 49193.00
},
{
"timestamp": "2018-07-11T00:00:00",
"value": 37205.30
},
{
"timestamp": "2018-07-10T00:00:00",
"value": 44527.30
},
{
"timestamp": "2018-07-09T00:00:00",
"value": 148737.01
},
{
"timestamp": "2018-07-06T00:00:00",
"value": 138887.90
},
{
"timestamp": "2018-07-05T00:00:00",
"value": 74346.00
},
{
"timestamp": "2018-07-04T00:00:00",
"value": 71181.50
},
{
"timestamp": "2018-07-03T00:00:00",
"value": 215164.43
},
{
"timestamp": "2018-07-02T00:00:00",
"value": 83817.50
}
]
}
当我运行我的测试代码时，我得到了一个 400 BAD REQUEST（没有额外的信息来说明原因）。这是我的控制台应用程序代码（明显部分已编辑）
using System;
using System.IO;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using System.Threading.Tasks;
namespace anomalyDetectionMachineLearning
{
class Program
{
// Replace the subscriptionKey string value with your valid subscription key.
const string subscriptionKey = "";
// Replace the endpoint URL with the correct one for your subscription.
// Your endpoint can be found in the Azure portal. For example: https://westus2.api.cognitive.microsoft.com
const string endpoint = "https://westus2.api.cognitive.microsoft.com/";
// Replace the dataPath string with a path to the JSON formatted time series data.
const string dataPath = @"C:\Temp\data.txt";
const string latestPointDetectionUrl = "/anomalydetector/v1.0/timeseries/last/detect";
const string batchDetectionUrl = "/anomalydetector/v1.0/timeseries/entire/detect";
static void Main(string[] args)
{
try
{
var requestData = File.ReadAllText(dataPath);
//Console.Write(requestData.ToString());
detectAnomaliesBatch(requestData);
//detectAnomaliesLatest(requestData);
System.Console.ReadKey();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
Console.ReadKey();
}
}
public static void detectAnomaliesBatch(string requestData)
{
System.Console.WriteLine("Detecting anomalies as a batch");
var result = Request(
endpoint,
batchDetectionUrl,
subscriptionKey,
requestData).Result;
dynamic jsonObj = Newtonsoft.Json.JsonConvert.DeserializeObject(result);
System.Console.WriteLine(jsonObj);
bool[] anomalies = jsonObj["isAnomaly"].ToObject<bool[]>();
System.Console.WriteLine("\n Anomalies detected in the following data positions:");
for (var i = 0; i < anomalies.Length; i++)
{
if (anomalies[i])
{
System.Console.Write(i + ", ");
}
}
}
static async Task<string> Request(string baseAddress, string endpoint, string subscriptionKey, string requestData)
{
using (HttpClient client = new HttpClient { BaseAddress = new Uri(baseAddress) })
{
System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", subscriptionKey);
var content = new StringContent(requestData, Encoding.UTF8, "application/json");
var res = await client.PostAsync(endpoint, content);
if (res.IsSuccessStatusCode)
{
return await res.Content.ReadAsStringAsync();
}
else
{
Console.WriteLine($"{res.Content.ToString()}");
Console.ReadKey();
return $"ErrorCode: {res.StatusCode}";
}
}
}
}
}
这是使用没有问题的工作示例数据（应评论中某人的要求粘贴在此处）
{
"granularity": "daily",
"series": [
{
"timestamp": "2018-03-01T00:00:00Z",
"value": 32858923
},
{
"timestamp": "2018-03-02T00:00:00Z",
"value": 29615278
},
{
"timestamp": "2018-03-03T00:00:00Z",
"value": 22839355
},
{
"timestamp": "2018-03-04T00:00:00Z",
"value": 25948736
},
{
"timestamp": "2018-03-05T00:00:00Z",
"value": 34139159
},
{
"timestamp": "2018-03-06T00:00:00Z",
"value": 33843985
},
{
"timestamp": "2018-03-07T00:00:00Z",
"value": 33637661
},
{
"timestamp": "2018-03-08T00:00:00Z",
"value": 32627350
},
{
"timestamp": "2018-03-09T00:00:00Z",
"value": 29881076
},
{
"timestamp": "2018-03-10T00:00:00Z",
"value": 22681575
},
{
"timestamp": "2018-03-11T00:00:00Z",
"value": 24629393
},
{
"timestamp": "2018-03-12T00:00:00Z",
"value": 34010679
},
{
"timestamp": "2018-03-13T00:00:00Z",
"value": 33893888
},
{
"timestamp": "2018-03-14T00:00:00Z",
"value": 33760076
},
{
"timestamp": "2018-03-15T00:00:00Z",
"value": 33093515
},
{
"timestamp": "2018-03-16T00:00:00Z",
"value": 29945555
},
{
"timestamp": "2018-03-17T00:00:00Z",
"value": 22676212
},
{
"timestamp": "2018-03-18T00:00:00Z",
"value": 25262514
},
{
"timestamp": "2018-03-19T00:00:00Z",
"value": 33631649
},
{
"timestamp": "2018-03-20T00:00:00Z",
"value": 34468310
},
{
"timestamp": "2018-03-21T00:00:00Z",
"value": 34212281
},
{
"timestamp": "2018-03-22T00:00:00Z",
"value": 38144434
},
{
"timestamp": "2018-03-23T00:00:00Z",
"value": 34662949
},
{
"timestamp": "2018-03-24T00:00:00Z",
"value": 24623684
},
{
"timestamp": "2018-03-25T00:00:00Z",
"value": 26530491
},
{
"timestamp": "2018-03-26T00:00:00Z",
"value": 35445003
},
{
"timestamp": "2018-03-27T00:00:00Z",
"value": 34250789
},
{
"timestamp": "2018-03-28T00:00:00Z",
"value": 33423012
},
{
"timestamp": "2018-03-29T00:00:00Z",
"value": 30744783
},
{
"timestamp": "2018-03-30T00:00:00Z",
"value": 25825128
},
{
"timestamp": "2018-03-31T00:00:00Z",
"value": 21244209
},
{
"timestamp": "2018-04-01T00:00:00Z",
"value": 22576956
},
{
"timestamp": "2018-04-02T00:00:00Z",
"value": 31957221
},
{
"timestamp": "2018-04-03T00:00:00Z",
"value": 33841228
},
{
"timestamp": "2018-04-04T00:00:00Z",
"value": 33554483
},
{
"timestamp": "2018-04-05T00:00:00Z",
"value": 32383350
},
{
"timestamp": "2018-04-06T00:00:00Z",
"value": 29494850
},
{
"timestamp": "2018-04-07T00:00:00Z",
"value": 22815534
},
{
"timestamp": "2018-04-08T00:00:00Z",
"value": 25557267
},
{
"timestamp": "2018-04-09T00:00:00Z",
"value": 34858252
},
{
"timestamp": "2018-04-10T00:00:00Z",
"value": 34750597
},
{
"timestamp": "2018-04-11T00:00:00Z",
"value": 34717956
},
{
"timestamp": "2018-04-12T00:00:00Z",
"value": 34132534
},
{
"timestamp": "2018-04-13T00:00:00Z",
"value": 30762236
},
{
"timestamp": "2018-04-14T00:00:00Z",
"value": 22504059
},
{
"timestamp": "2018-04-15T00:00:00Z",
"value": 26149060
},
{
"timestamp": "2018-04-16T00:00:00Z",
"value": 35250105
}
]
}