online_hmm.proto

option java_package = "com.hello.suripu.api.datascience";
option java_outer_classname = "OnlineHmmProtos";
package hello;

message RealMatrix {
    required int32 num_rows = 1;
    required int32 num_cols = 2;
    repeated double data = 3;
    optional string id = 4;
}

//this maps to a interpretation layer factory in the suripu
//if you are going to create a new user model type (i.e. not SLEEP or BED)
//you must update this factory in suripu
enum OutputId {
    SLEEP = 0;
    BED = 1;
}

message Transition {
    required int32 from = 1;
    required int32 to = 2;
}

message MotionModelRestriction {
    optional string motion_model_id = 1;
    repeated Transition forbiddeden_motion_transitions = 2;
    repeated int32 non_motion_states = 3;
}

message AlphabetHmmPrior {
    optional string id = 1;
    optional OutputId output_id = 2;
    optional int64 date_created_utc = 3;
    optional int64 date_updated_utc = 4;
    optional RealMatrix log_state_transition_numerator = 5;
    repeated RealMatrix log_observation_model_numerator = 6;
    repeated string log_observation_model_ids = 7;
    repeated double log_denominator = 8;
    repeated double pi = 9;
    repeated int32 end_states = 10;
    repeated int32 minimum_state_durations = 11;
    optional MotionModelRestriction motion_model_restriction = 12; //restricts transitions to only certain states and times
}

message AlphabetHmmScratchPad {
    optional int64 last_date_updated_utc = 1;
    repeated AlphabetHmmPrior model_deltas = 2;
    repeated VotingInfo vote_info = 3;
}

message VotingInfo {
    optional string model_id = 1;
    optional string output_id = 2;
    optional double probability_of_model = 3;
}

message AlphabetHmmUserModel {
    repeated AlphabetHmmPrior models = 1;
    repeated VotingInfo vote_info = 2; //purposely decoupled from the models
}