Results 21 to 30 of about 148,669 (285)

Similarity Identification Based on Word Trigrams Using Exact String Matching Algorithms

open access: yesIntensif: Jurnal Ilmiah Penelitian Teknologi dan Penerapan Sistem Informasi, 2022
Several studies regarding excellent exact string matching algorithms can be used to identify similarity, including the Rabin-Karp, Winnowing, and Horspool Boyer-Moore algorithms.
Abdul Fadlil   +2 more
doaj   +1 more source

Collapsing Superstring Conjecture [PDF]

open access: yes, 2019
In the Shortest Common Superstring (SCS) problem, one is given a collection of strings, and needs to find a shortest string containing each of them as a substring. SCS admits 2 11/23-approximation in polynomial time (Mucha, SODA\u2713).
Golovnev, Alexander   +4 more
core   +2 more sources

Consistent Unsupervised Estimators for Anchored PCFGs

open access: yesTransactions of the Association for Computational Linguistics, 2020
Learning probabilistic context-free grammars (PCFGs) from strings is a classic problem in computational linguistics since Horning ( 1969 ). Here we present an algorithm based on distributional learning that is a consistent estimator for a large class of ...
Clark, Alexander, Fijalkow, Nathanaël
doaj   +1 more source

Quantum Algorithms for Classical Probability Distributions [PDF]

open access: yes, 2019
We study quantum algorithms working on classical probability distributions. We formulate four different models for accessing a classical probability distribution on a quantum computer, which are derived from previous work on the topic, and study their ...
Belovs, Aleksandrs
core   +2 more sources

Rotation of bits: a classical and quantum perspective

open access: yesJournal of Electrical Systems and Information Technology, 2021
Bit rotation is an operation similar to shift except that the bits that fall off at one end are put back to the other end. In left rotation, the bits that fall off at left end are put back at right end.
Peter Nimbe   +2 more
doaj   +1 more source

Small Longest Tandem Scattered Subsequences

open access: yesScientific Annals of Computer Science, 2021
We consider the problem of identifying tandem scattered subsequences within a string. Our algorithm identifies a longest subsequence which occurs twice without overlap in a string.
Luıs M. S. Russo   +1 more
doaj   +1 more source

Deterministic Polynomial-Time Algorithms for Designing Short DNA Words [PDF]

open access: yes, 2012
Designing short DNA words is a problem of constructing a set (i.e., code) of n DNA strings (i.e., words) with the minimum length such that the Hamming distance between each pair of words is at least k and the n words satisfy a set of additional ...
Kao, Ming-Yang   +3 more
core   +2 more sources

Fast Arc-Annotated Subsequence Matching in Linear Space [PDF]

open access: yes, 2010
An arc-annotated string is a string of characters, called bases, augmented with a set of pairs, called arcs, each connecting two bases. Given arc-annotated strings $P$ and $Q$ the arc-preserving subsequence problem is to determine if $P$ can be obtained ...
D. Harel   +10 more
core   +3 more sources

Computing Maximal Lyndon Substrings of a String

open access: yesAlgorithms, 2020
There are two reasons to have an efficient algorithm for identifying all right-maximal Lyndon substrings of a string: firstly, Bannai et al. introduced in 2015 a linear algorithm to compute all runs of a string that relies on knowing all right-maximal ...
Frantisek Franek, Michael Liut
doaj   +1 more source

Symbolic Algorithms for Language Equivalence and Kleene Algebra with Tests [PDF]

open access: yes, 2014
We first propose algorithms for checking language equivalence of finite automata over a large alphabet. We use symbolic automata, where the transition function is compactly represented using a (multi-terminal) binary decision diagrams (BDD). The key idea
Bouajjani A.   +10 more
core   +5 more sources

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