IBM Watson Retrieve and Rank:Ranker 训练失败

IBM Watson Retrieve and Rank: Ranker training failure

我正在使用 REST API 关注此 Tutorial. I've successfully completed Stage 3. Now in stage 4, I downloaded the sample ground truth and tried to create the ranker。排序器创建时状态为训练。一段时间后,当我尝试通过其 ID 获取该排序器时,我收到以下错误:

{
  "ranker_id": "1eec74x28-rank-4116",
  "name": "First Training Data",
  "created": "2017-04-05T09:26:43.925Z",
  "url": "https://gateway.watsonplatform.net/retrieve-and-rank/api/v1/rankers/1eec74x28-rank-4116",
  "status": "Failed",
  "status_description": "Error encountered during training: Training data quality standards not met: invalid header (duplicate feature names). Row 1 of input data."
}

当我试图找出问题时,我发现 this link。但是,我无法在此处确定问题所在。我不了解培训数据的最低标准。 请指导我采取纠正措施。

对于查看此处的任何人,在 IBM 开发人员工作论坛上发布了对此问题的回复:https://developer.ibm.com/answers/questions/366976/watson-retrieve-and-rank-failing-to-train-the-rank.html