Name
Abstract | ||
|---|---|---|
Let $\Sigma$ and $\Pi$ be disjoint alphabets, respectively called the static alphabet and the parameterized alphabet. Two strings $x$ and $y$ over $\Sigma \cup \Pi$ of equal length are said to parameterized match (p-match) if there exists a renaming bijection $f$ on $\Sigma$ and $\Pi$ which is identity on $\Sigma$ and maps the characters of $x$ to those of $y$ so that the two strings become identical. The indexing version of the problem of finding p-matching occurrences of a given pattern in the text is a well-studied topic in string matching. In this paper, we present a state-of-the-art indexing structure for p-matching called the parameterized suffix tray of an input text $T$, denoted by $\mathsf{PSTray}(T)$. We show that $\mathsf{PSTray}(T)$ occupies $O(n)$ space and supports pattern matching queries in $O(m + \log (\sigma+\pi) + \mathit{occ})$ time, where $n$ is the length of $T$, $m$ is the length of a query pattern $P$, $\pi$ is the number of distinct symbols of $|\Pi|$ in $T$, $\sigma$ is the number of distinct symbols of $|\Sigma|$ in $T$ and \mathit{occ} is the number of p-matching occurrences of $P$ in $T$. We also present how to build $\mathsf{PSTray}(T)$ in $O(n)$ time from the parameterized suffix tree of $T$. |
Year | DOI | Venue |
|---|---|---|
2021 | 10.1007/978-3-030-75242-2_18 | CIAC |
DocType | Citations | PageRank |
Conference | 0 | 0.34 |
References | Authors | |
0 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Noriki Fujisato | 1 | 0 | 1.01 |
| Yuto Nakashima | 2 | 57 | 19.52 |
| Shunsuke Inenaga | 3 | 595 | 79.02 |
| Hideo Bannai | 4 | 620 | 79.87 |
| Masayuki Takeda | 5 | 902 | 79.24 |