{
  "id": 195851,
  "title": "Meanings for some of the data",
  "url": "/competitions/lyft-motion-prediction-autonomous-vehicles/discussion/195851",
  "author_name": "Ben Duong",
  "post_date": "2020-11-07T21:16:49.119000",
  "votes": 1,
  "comment_count": 0,
  "views": 0,
  "content": "<p>Does anyone have a resource that tells the full meanings of each tensor of the dicts in iter(train_dataloader) from the starter notebook? For example, all of the tensors have initial dimension of 12. Is 12 the number of agents (including the AV)? For the images key, the tensor shape is 12, 5, 224, 224. I'm guessing the 224x224 is the image, but why are there 5 channels?<br>\nWhat does the \"extent\" key represent?</p>",
  "messages": [
    {
      "id": 1072165,
      "postDate": "2020-11-07T21:16:49.120Z",
      "content": "<p>Does anyone have a resource that tells the full meanings of each tensor of the dicts in iter(train_dataloader) from the starter notebook? For example, all of the tensors have initial dimension of 12. Is 12 the number of agents (including the AV)? For the images key, the tensor shape is 12, 5, 224, 224. I'm guessing the 224x224 is the image, but why are there 5 channels?<br>\nWhat does the \"extent\" key represent?</p>",
      "rawMarkdown": "Does anyone have a resource that tells the full meanings of each tensor of the dicts in iter(train_dataloader) from the starter notebook? For example, all of the tensors have initial dimension of 12. Is 12 the number of agents (including the AV)? For the images key, the tensor shape is 12, 5, 224, 224. I'm guessing the 224x224 is the image, but why are there 5 channels?\nWhat does the \"extent\" key represent?",
      "votes": 1
    }
  ],
  "comments": [],
  "raw_markdown_by_id": {
    "1072165": "Does anyone have a resource that tells the full meanings of each tensor of the dicts in iter(train_dataloader) from the starter notebook? For example, all of the tensors have initial dimension of 12. Is 12 the number of agents (including the AV)? For the images key, the tensor shape is 12, 5, 224, 224. I'm guessing the 224x224 is the image, but why are there 5 channels?\nWhat does the \"extent\" key represent?"
  }
}