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The Web hosts a huge variety of multi-cultural taxonomies. They encompass product catalogs of e-commerce, general-purpose knowledge bases and numerous domain-specic category systems. The enormous heterogeneity of those sources is a challenging aspect when multiple taxonomies have to be interlinked. In this paper we introduce the ACROSS system to support the alignment of independently created Web taxonomies. Each taxonomy is shaped by its unique culture, which is threefold: categorization criteria of the taxonomy, language, and socioeconomic background. For mapping categories between dierent taxonomies, ACROSS harnesses instance-level features as well as distant supervision from an intermediate source like multiple Wikipedia editions. ACROSS includes a reasoning step, which is based on combinatorial optimization. In order to reduce the run time of the reasoning procedure without sacricing quality, we study two models of user involvement. Our experiments with heterogeneous taxonomies for dierent domains demonstrate the viability of our approach and improvement over state-of-the-art baselines.

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