期刊論文
| 學年 | 97 |
|---|---|
| 學期 | 1 |
| 出版（發表）日期 | 2009-01-27 |
| 作品名稱 | New fixed-parameter algorithms for the minimum quartet inconsistency problem |
| 作品名稱（其他語言） | |
| 著者 | Maw-Shang Chang; Chuang-Chieh Lin; Peter Rossmanith |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Theory of Computing Systems 47, pp.342–367 |
| 摘要 | Let S be a set of n taxa. Given a parameter k and a set of quartet topologies Q over S such that there is exactly one topology for every subset of four taxa, the parameterized Minimum Quartet Inconsistency (MQI) problem is to decide whether we can find an evolutionary tree inducing a set of quartet topologies that differs from the given set in at most k quartet topologies. The best fixed-parameter algorithm devised so far for the parameterized MQI problem runs in time O(4k n+n 4). In this paper, first we present an O(3.0446k n+n 4) fixed-parameter algorithm and an O(2.0162k n 3+n 5) fixed-parameter algorithm for the parameterized MQI problem. Finally, we give an O *((1+ε)k) fixed-parameter algorithm, where ε>0 is an arbitrarily small constant. |
| 關鍵字 | Evolutionary tree;Quartet topology;Leaf-labeled tree;Minimum quartet inconsistency problem;Fixed-parameter algorithm;Depth-bounded search tree |
| 語言 | en_US |
| ISSN | 1433-0490 |
| 期刊性質 | 國內 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | Chuang-Chieh Lin |
| 審稿制度 | 是 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/120037 ) |