Structure of the Data
Each dialogue is represented as a json object with the following fields:
- dialogue_id - A unique identifier for a dialogue.
- turns - A list of annotated agent and user utterance pairs having the
following fields:
- system_acts - A list of system actions. An action consists of an
action type, and optional slot and value arguments. Each action has the
following fields:
- type - An action type. Possible values are listed below.
- slot - Optional slot argument.
- value - Optional value argument. If value is present, slot must be present.
- system_utterance - The system utterance having the following
fields.
- text - The text of the utterance.
- tokens - A list containing tokenized version of text.
- slots - A list containing locations of mentions of values
corresponding to slots in the utterance, having the following
fields:
- slot - The name of the slot
- start - The index of the first token corresponding to a slot value in the tokens list.
- exclusive_end - The index of the token succeeding the last
token corresponding to the slot value in the tokens list. In
python,
tokens[start:exclusive_end]gives the tokens for slot value.
- user_acts - A list of user actions. Has the same structure as system_acts.
- user_utterance - The user utterance. It has three fields, similar to system_utterance.
- user_intents - A list of user intents specified in the current turn. Possible values are listed below.
- dialogue_state - Contains the preferences for the different slots
as specified by the user upto the current turn of the dialogue.
Represented as a list containing:
- slot - The name of the slot.
- value - The value assigned to the slot.
- system_acts - A list of system actions. An action consists of an
action type, and optional slot and value arguments. Each action has the
following fields:
The list of action types is inspired from the Cambridge dialogue act schema (DSTC2 Handbook, Pg 19) . The possible values are:
- AFFIRM
- CANT_UNDERSTAND
- CONFIRM
- INFORM
- GOOD_BYE
- GREETING
- NEGATE
- OTHER
- NOTIFY_FAILURE
- NOTIFY_SUCCESS
- OFFER
- REQUEST
- REQUEST_ALTS
- SELECT
- THANK_YOU
The possible values of user intents are:
- FIND_RESTAURANT
- RESERVE_RESTAURANT