MultiState< audit > Struct Template Reference

#include <parse_example_json.h>

Inheritance diagram for MultiState< audit >:

Public Member Functions
	MultiState ()
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)

Additional Inherited Members
Public Attributes inherited from BaseState< audit >
const char *	name

Detailed Description

template<bool audit>
struct MultiState< audit >

Definition at line 429 of file parse_example_json.h.

Constructor & Destructor Documentation

MultiState()

template<bool audit>

MultiState< audit >::MultiState ( )

inline

Definition at line 431 of file parse_example_json.h.

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

Member Function Documentation

EndArray()

template<bool audit>

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

inlineoverridevirtual

Reimplemented from BaseState< audit >.

Definition at line 477 of file parse_example_json.h.

References Context< audit >::default_state, Context< audit >::ex, and Context< audit >::examples.

  {
    // return to shared example
    ctx.ex = (*ctx.examples)[0];

    return &ctx.default_state;
  }

StartArray()

template<bool audit>

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

inlineoverridevirtual

Reimplemented from BaseState< audit >.

Definition at line 433 of file parse_example_json.h.

References CB::cb_class::action, Context< audit >::all, polylabel::cb, label_type::cb, label_type::ccb, polylabel::conditional_contextual_bandit, CB::cb_class::cost, CB::label::costs, Context< audit >::ex, f, example::l, vw::label_type, CB::cb_class::partial_prediction, CB::cb_class::probability, CCB::shared, THROW, CCB::label::type, and uniform_hash().

  {
    // mark shared example
    if (ctx.all->label_type == label_type::cb)
    {
      CB::label* ld = &ctx.ex->l.cb;
      CB::cb_class f;

      f.partial_prediction = 0.;
      f.action = (uint32_t)uniform_hash("shared", 6, 0);
      f.cost = FLT_MAX;
      f.probability = -1.f;

      ld->costs.push_back(f);
    }
    else if (ctx.all->label_type == label_type::ccb)
    {
      CCB::label* ld = &ctx.ex->l.conditional_contextual_bandit;
      ld->type = CCB::example_type::shared;
    }
    else
      THROW("label type is not CB or CCB")

    return this;
  }

StartObject()

template<bool audit>

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

inlineoverridevirtual

Reimplemented from BaseState< audit >.

Definition at line 459 of file parse_example_json.h.

References Context< audit >::all, label_type::ccb, polylabel::conditional_contextual_bandit, label_parser::default_label, Context< audit >::default_state, Context< audit >::ex, Context< audit >::example_factory, Context< audit >::example_factory_context, Context< audit >::examples, example::l, vw::label_type, parser::lp, vw::p, v_array< T >::push_back(), Context< audit >::PushNamespace(), and CCB::label::type.

  {
    // allocate new example
    ctx.ex = &(*ctx.example_factory)(ctx.example_factory_context);
    ctx.all->p->lp.default_label(&ctx.ex->l);
    if (ctx.all->label_type == label_type::ccb)
    {
      ctx.ex->l.conditional_contextual_bandit.type = CCB::example_type::action;
    }

    ctx.examples->push_back(ctx.ex);

    // setup default namespace
    ctx.PushNamespace(" ", this);

    return &ctx.default_state;
  }

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

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