ICST Math Retrieval System for NTCIR-11 Math-2 Task

  title={ICST Math Retrieval System for NTCIR-11 Math-2 Task},
  author={Liangcai Gao and Yuehan Wang and Leipeng Hao and Zhi Tang},
In NTCIR-11, the NTCIR-Math-2 Task is organized for mathematical information retrieval. This paper proposes an innovative system for efficient formula index and retrieval. We build a novel indexing and matching model, taking both textual and spatial similarities into consideration. Besides, a hierarchical technique is introduced to generate sub-trees from the semi-operator trees of formulae. The experimental results demonstrate that the method of our system is effective and promising in… CONTINUE READING
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