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Burrows-Wheeler Transform Alignment

基于 Burrows-Wheeler 变换的序列比对算法,通过构建 BWT 索引实现快速的短读段比对。 该方法在保持高准确性的同时大幅提升比对速度,是现代测序数据分析的核心算法。

PropertyValue
Purpose高通量测序数据的快速比对
Time ComplexityO(n)
Space ComplexityO(n)
Year2009
CategorySequence Alignment

Complexity Analysis

  • Time Complexity: O(n)
  • Space Complexity: O(n)

Performance Insight: The time complexity of this algorithm is linear (O(n)), scales linearly to TB-scale data and is suitable for streaming pipelines. Linear space can often be reduced by constant factors via sliding-window techniques.

Note: Complexity analysis is based on theoretical models. Actual runtime is affected by input scale, hardware, and implementation optimizations. Benchmark for your specific workload.

Literature & Implementation

BWA · Bowtie · HISAT2

Tags

bwt indexing short-read high-throughput

Released under the MIT License.