Abstract
We consider the problem of indexing a collection of documents (a.k.a. strings) of total length n such that the following kind of queries are supported: given two patterns P + and P −, list all \(\ensuremath{n_\text{match}}\) documents containing P + but not P −. This is a natural extension of the classic problem of document listing as considered by Muthukrishnan [SODA’02], where only the positive pattern P + is given. Our main solution is an index of size O(n 3/2) bits that supports queries in \(O(|\ensuremath{P^+}|+|\ensuremath{P^-}|+\ensuremath{n_\text{match}}+\sqrt{n})\) time.
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Fischer, J. et al. (2012). Forbidden Patterns. In: Fernández-Baca, D. (eds) LATIN 2012: Theoretical Informatics. LATIN 2012. Lecture Notes in Computer Science, vol 7256. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-29344-3_28
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DOI: https://doi.org/10.1007/978-3-642-29344-3_28
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