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23 lines
717 B
Python
23 lines
717 B
Python
6 months ago
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import numpy as np
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# 假设我们已经学习到了简化的二维词向量
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embeddings = {
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"king": np.array([0.9, 0.8]),
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"queen": np.array([0.9, 0.2]),
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"man": np.array([0.7, 0.9]),
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"woman": np.array([0.7, 0.3])
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}
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def cosine_similarity(vec1, vec2):
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dot_product = np.dot(vec1, vec2)
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norm_product = np.linalg.norm(vec1) * np.linalg.norm(vec2)
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return dot_product / norm_product
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# king - man + woman
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result_vec = embeddings["king"] - embeddings["man"] + embeddings["woman"]
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# 计算结果向量与 "queen" 的相似度
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sim = cosine_similarity(result_vec, embeddings["queen"])
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print(f"king - man + woman 的结果向量: {result_vec}")
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print(f"该结果与 'queen' 的相似度: {sim:.4f}")
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