genericTaskPresenter

This is a generic task presenter for PYBOSSA which can handle the following media types -

• Image - png, gif, jpg, jpeg
• Video - mp4, mkv
• Audio - mp3
• Document - pdf

It supports multiple questions of mcq and text type.

JSON Data formats required -

To work properly, this presenter assumes a particular data format in which tasks and projects are stored. If this format is adhered to, then the presenter is guaranteed to work as required.

The Project JSON Format -

The JSON of Project in PYBOSSA already has a dictionary info. This presenter requires a dictionary questionSet inside project.info. Here is its structure -

"questionSet": {
  "images":[
    {
      "questionString" : "What is this image about?",
      "type" : "normal",
      answers : []
    },
    {
      "questionString" : "Do you like this image?",
      "type" : "mcqs",
      answers : ["Yes","No"]
    }
  ],
  "videos":[
    {
      "questionString" : "What is this video about?",
      "type" : "normal",
      answers : []
    },
    {
      "questionString" : "Do you like this video?",
      "type" : "mcqs",
      answers : ["Yes","No"]
    }
  ],
  "audios":[
    {
      "questionString" : "What is this audio about?",
      "type" : "normal",
      answers : []
    },
    {
      "questionString" : "Do you like this audio?",
      "type" : "mcqs",
      answers : ["Yes","No"]
    }
  ],
  "documents":[
    {
      "questionString" : "What is this document about?",
      "type" : "normal",
      answers : []
    },
    {
      "questionString" : "Do you like this document?",
      "type" : "mcqs",
      answers : ["Yes","No"]
    }
  ]
}

As you can see, questionSet contains 4 arrays - images, videos, audios and documents. Each of these arrays contain questions. Each question has a questionString which is basically what you want to ask. Next there is a variable called type, which decides whether the question expects a text type answer or is an mcq. The type normal indicates a text based answer. The type mcqs indicates an mcq based answer. If the type is mcqs then an additional array answers is required which has the choices given to the user.

The task JSON format -

Just like the project, the task JSON in PYBOSSA also contains an info field. This field should have 2 sub-fields -

• url - The url of the resource which is to be crowdsourced.
• type - The data type of the resource. It can be of the type - images, videos, audios, documents.

Here is a sample of task.info -

"info": {
      "url": "/uploads/local_upload_directory/35_1498908303/images/1498908304.01IMG_8022.JPG",
      "subtype": "jpg",
      "type": "images"
}

Here you can see that the url happens to be a file system. That is because the resource is taken locally from a computer. But any resource url will work fine.