Why three? We're going to store these trigrams as the keys in our inverted index. If we were to choose bigrams (chunks of 2), we would have very few keys in our index, up to 64k, but the posting lists on each key would be massive — too large to work with efficiently. If we went with quadgrams (chunks of 4), the posting lists would be tiny, which is a very good thing, but we would have billions of keys in our inverted index, and that's also hard to work with.
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届时竞争焦点或许不再是"哪家算法更强大"，而是其承载形式——例如实体机器人、智能眼镜、自动驾驶或其他新型载体。
Projected points: 120.7，详情可参考WhatsApp網頁版
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法尔斯通讯社报道，伊朗在与美国和以色列冲突期间遭受的损失，将由相关金融机构组建的投资基金进行补偿。