CCBOutcomeList< audit > Class Template Reference

#include <parse_example_json.h>

Inheritance diagram for CCBOutcomeList< audit >:

Public Member Functions
	CCBOutcomeList ()
BaseState< audit > *	StartArray (Context< audit > &ctx) override
BaseState< audit > *	StartObject (Context< audit > &ctx) override
BaseState< audit > *	EndArray (Context< audit > &ctx, rapidjson::SizeType) override
Public Member Functions inherited from BaseState< audit >
	BaseState (const char *pname)
virtual BaseState< audit > *	Null (Context< audit > &ctx)
virtual BaseState< audit > *	Bool (Context< audit > &ctx, bool b)
virtual BaseState< audit > *	Float (Context< audit > &ctx, float v)
virtual BaseState< audit > *	Uint (Context< audit > &ctx, unsigned v)
virtual BaseState< audit > *	String (Context< audit > &ctx, const char *str, rapidjson::SizeType len, bool)
virtual BaseState< audit > *	Key (Context< audit > &ctx, const char *str, rapidjson::SizeType len, bool)
virtual BaseState< audit > *	EndObject (Context< audit > &ctx, rapidjson::SizeType)

Public Attributes
DecisionServiceInteraction *	interactions
Public Attributes inherited from BaseState< audit >
const char *	name

Private Attributes
int	slot_object_index = 0
std::vector< uint32_t >	actions
std::vector< float >	probs
float	cost
BaseState< audit > *	old_root

Detailed Description

template<bool audit>
class CCBOutcomeList< audit >

Definition at line 1004 of file parse_example_json.h.

Constructor & Destructor Documentation

CCBOutcomeList()

template<bool audit>

CCBOutcomeList< audit >::CCBOutcomeList ( )

inline

Definition at line 1017 of file parse_example_json.h.

: BaseState<audit>("CCBOutcomeList") {}

Member Function Documentation

EndArray()

template<bool audit>

BaseState<audit>* CCBOutcomeList< audit >::EndArray ( Context< audit > &  ctx, rapidjson::SizeType    )

inlineoverridevirtual

Reimplemented from BaseState< audit >.

Definition at line 1057 of file parse_example_json.h.

References DecisionServiceInteraction::actions, Context< audit >::decision_service_state, Context< audit >::examples, DecisionServiceInteraction::probabilities, Context< audit >::root_state, and CCB::slot.

  {
    // DSJson requires the interaction object to be filled. After reading all slot outcomes fill out the top actions.
    for (auto ex : *ctx.examples)
    {
      if (ex->l.conditional_contextual_bandit.type == CCB::example_type::slot)
      {
        if (ex->l.conditional_contextual_bandit.outcome)
        {
          interactions->actions.push_back(ex->l.conditional_contextual_bandit.outcome->probabilities[0].action);
          interactions->probabilities.push_back(ex->l.conditional_contextual_bandit.outcome->probabilities[0].score);
        }
      }
    }

    ctx.root_state = old_root;
    return &ctx.decision_service_state;
  }

StartArray()

template<bool audit>

BaseState<audit>* CCBOutcomeList< audit >::StartArray ( Context< audit > &  ctx )

inlineoverridevirtual

Reimplemented from BaseState< audit >.

Definition at line 1019 of file parse_example_json.h.

References Context< audit >::examples, Context< audit >::root_state, CCB::slot, and THROW.

  {
    slot_object_index = 0;

    // Find start index of slot objects by iterating until we find the first slot example.
    for (auto ex : *ctx.examples)
    {
      if (ex->l.conditional_contextual_bandit.type != CCB::example_type::slot)
      {
        slot_object_index++;
      }
    }
    old_root = ctx.root_state;
    ctx.root_state = this;

    if (slot_object_index == 0)
    {
      THROW("Badly formed ccb example. Shared example is required.")
    }

    return this;
  }

StartObject()

template<bool audit>

BaseState<audit>* CCBOutcomeList< audit >::StartObject ( Context< audit > &  ctx )

inlineoverridevirtual

Reimplemented from BaseState< audit >.

Definition at line 1042 of file parse_example_json.h.

References Context< audit >::default_state, Context< audit >::ex, Context< audit >::examples, Context< audit >::label_index_state, and Context< audit >::PushNamespace().

  {
    // Set current example so that default state correctly sets the label.
    ctx.ex = (*ctx.examples)[slot_object_index];
    // The end object logic assumes shared example so we need to take one here.
    ctx.label_index_state.index = slot_object_index - 1;

    slot_object_index++;

    // Push a namespace so that default state can get back here when it reaches the end of the object.
    ctx.PushNamespace(" ", this);

    return &ctx.default_state;
  }

Member Data Documentation

actions

template<bool audit>

std::vector<uint32_t> CCBOutcomeList< audit >::actions

private

Definition at line 1008 of file parse_example_json.h.

cost

template<bool audit>

float CCBOutcomeList< audit >::cost

private

Definition at line 1010 of file parse_example_json.h.

interactions

template<bool audit>

DecisionServiceInteraction* CCBOutcomeList< audit >::interactions

Definition at line 1015 of file parse_example_json.h.

old_root

template<bool audit>

BaseState<audit>* CCBOutcomeList< audit >::old_root

private

Definition at line 1012 of file parse_example_json.h.

probs

template<bool audit>

std::vector<float> CCBOutcomeList< audit >::probs

private

Definition at line 1009 of file parse_example_json.h.

slot_object_index

template<bool audit>

int CCBOutcomeList< audit >::slot_object_index = 0

private

Definition at line 1006 of file parse_example_json.h.

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The documentation for this class was generated from the following file:

• /mnt/c/w/linux/vowpal_wabbit/vowpalwabbit/parse_example_json.h