55 lines
1008 B
C++
55 lines
1008 B
C++
#pragma once
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#include "../core/tensor.hpp"
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#include <vector>
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#include <random>
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#include <algorithm>
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#include <numeric>
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namespace lm {
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class Sampler {
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public:
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virtual ~Sampler() = default;
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virtual int sample(const Tensor& logits) = 0;
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};
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class GreedySampler : public Sampler {
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public:
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int sample(const Tensor& logits) override;
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};
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class RandomSampler : public Sampler {
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public:
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RandomSampler(float temperature = 1.0);
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int sample(const Tensor& logits) override;
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private:
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float temperature_;
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std::mt19937 gen_;
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};
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class TopKSampler : public Sampler {
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public:
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TopKSampler(int k, float temperature = 1.0);
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int sample(const Tensor& logits) override;
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private:
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int k_;
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float temperature_;
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std::mt19937 gen_;
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};
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class TopPSampler : public Sampler {
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public:
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TopPSampler(float p, float temperature = 1.0);
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int sample(const Tensor& logits) override;
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private:
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float p_;
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float temperature_;
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std::mt19937 gen_;
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};
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} // namespace lm
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