"pseudoapproximations" meaning in English

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          "ref": "2015, Stephen R. Chestnut, Rico Zenklusen, “Interdicting Structured Combinatorial Optimization Problems with {0,1}-Objectives”, in arXiv:",
          "text": "Not very surprisingly, the few known approximation algorithms are heavily tailored for specific problems. Inspired by an approach of Burch et al. (2003), we suggest a general method to obtain pseudoapproximations for many interdiction problems.",
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