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据悉，本案原告为密苏里州计算机科学家 Stephen Thaler，其曾于 2018 年为其 AI 系统「DABUS」独立生成的视觉艺术作品《A Recent Entrance to Paradise》申请联邦版权注册。但美国版权局在 2022 年驳回了该申请，认定受版权保护的创意作品必须拥有人类作者。。旺商聊官方下载是该领域的重要参考
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both of these approaches use NFAs under the hood, which means O(m * n) matching. our approach is fundamentally different: we encode lookaround information directly in the automaton via derivatives, which gives us O(n) matching with a small constant. the trade-off is that we restrict lookarounds to a normalized form (?<=R1)R2(?=R3) where R1/R2/R3 themselves don’t contain lookarounds. the oracle-based approaches support more general nesting, but pay for it in the matching loop. one open question i have is how they handle memory for the oracle table - if you read a gigabyte of text, do you keep a gigabyte-sized table in memory for each lookaround in the pattern?