AzureML：“训练火柴盒推荐器”不起作用，并且没有描述错误

我尝试使用该模块创建自己的实验，但未能成功。 这是我得到的例外：

错误 0018：用户-项目-评分三元组的训练数据集包含无效数据。 [关键] {"InputParameters":{"DataTable":[{"Rows":14,"Columns":3,"estimatedSize":12668928,"ColumnTypes":{"System.String":1,"System.Int32 ":1,"System.Double":1},"IsComplete":true,"统计":{"0":[10,0],"1":[5422.0,5999.0,873.0,6616.0,1758.0582820478173,7.0 ,0.0],"2":[1.0,1.0,1.0,1.0,0.0,1.0,0.0]}},{"行数":2338,"列数":3,"estimatedSize":1404928,"ColumnTypes":{ "System.String":1,"System.Int32":1,"System.Double":1},"IsComplete":true,"统计":{"0":[2338,0],"1": [7.5367835757057318,3.0,0.0,704.0,17.738259318519511,64.0,0.0],"2":[3.3737234816082085,1.5,0.0,352.0,8.3956874404883841,12 2.0,0.0]}},{"行":2532,"列":22 ,"estimatedSize":4648960,"ColumnTypes":{"System.Int32":10,"System.String":5,"System.Double":6,"System.Boolean":1},"IsComplete":true ,"统计":{"0":[4575.7263033175359,5326.5,539.0,6871.0,1987.9561375024909,2532.0,0.0],"1":[4575.7263033175359,5326.5,539.0,6 871.0,1987.9561375024909,2532.0,0.0],"2": [613.0,613.0,613.0,613.0,0.0,1.0,0.0],"3":[0,2532],"4":[0,2532],"5":[4575.7263033175359,5326.5,539.0,6871.0,1987.956137502 4909 ,2532.0,0.0],"6":[23.647231437598673,19.99,1.99,149.99,17.237723488320938,90.0,0.0],"7":[0.043827014218009476,0.0,0.0,45. 99,1.3460680431173562,3.0,0.0],"8": [0.0,0.0,0.0,0.0,0.0,1.0,0.0],"9":[0.0,0.0,0.0,0.0,0.0,1.0,0.0],"10":[0.0,0.0,0.0,0.0,0.0 ,1.0,0.0],"11":[0.0,0.0,0.0,0.0,0.0,1.0,0.0],"12":[0.0,0.0,0.0,0.0,0.0,1.0,0.0],"13": [0.0,0.0,0.0,0.0,0.0,1.0,0.0],"14":[0.0,0.0,0.0,0.0,0.0,1.0,0.0],"15":[0.0,0.0,0.0,0.0,0.0 ,1.0,0.0],"16":[0.0,0.0,0.0,0.0,0.0,1.0,0.0],"17":[0.0,0.0,0.0,0.0,0.0,1.0,0.0],"18": [2524,0],"19":[242,18],"20":[1,0],"21":[2524,0]}}],"通用":{"traitCount":10, "iterationCount":5,"batchCount":4}},"OutputParameters":[],"ModuleType":"Microsoft.Analytics.Modules.MatchboxRecommender.Dll","ModuleVersion":"版本=6.0.0.0"," ExtraModuleInfo":"Microsoft.Analytics.Modules.MatchboxRecommender.Dll，版本=6.0.0.0，文化=中性，PublicKeyToken=69c3241e6f0468ca;Microsoft.Analytics.Modules.MatchboxRecommender.Dll.MatchboxRecommender;火车"，"错误"："Microsoft. Analytics.Exceptions.ErrorMapping+ModuleException：错误 0018：用户项目评分三元组的训练数据集包含无效数据。\r\n 位于 Microsoft.Analytics.Modules.MatchboxRecommender.Dll.Utilities.UpdateRatingMetadata(DataTable dataset, String datasetName) 中d:\_Bld\8833\7669\Sources\Product\Source\Modules\MatchboxRecommender.Dll\Utilities.cs:第 179 行\r\n 位于 Microsoft.Analytics.Modules.MatchboxRecommender.Dll.MatchboxRecommender.TrainImpl(DataTable userItemRatingTriples, DataTable d:\_Bld\8833\7669\Sources\Product\Source\Modules\MatchboxRecommender.Dll\MatchboxRecommender.cs:第 62 行","警告":[] ,"持续时间":"00:00:00.6722068"} 模块在运行时间为 00:00:01.1250071 后完成，退出代码为 -2 由于负退出代码 -2，模块失败

我已经检查了我设置为输入用户位置评级表的输入数据，按记录记录（不用担心，它只有 14 条记录），如下所示：

Here is a screenshot of the experiment:

由于错误消息信息不是很丰富，我不知道从哪里开始，所以，如果有人有想法，我会很高兴听到它。

更新： 我的一个朋友建议添加“编辑元数据”模块，将“评级”特征更改为“int”或“float”类型，并将另外两个（placeID和userID）更改为字符串特征。这也没有帮助。

火柴盒推荐器要求评级为数字或分类。此外，在训练时，您的评分也不可能完全相同。

您需要使用元数据编辑器https://msdn.microsoft.com/en-us/library/azure/dn905986.aspx https://msdn.microsoft.com/en-us/library/azure/dn905986.aspx要将评级转换为数字特征，您需要确保使用一系列评级。

那么这应该可行！