The student-project allocation problem

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The student-project allocation problem

Springer Verlag GmbH
  • Qa75 Electronic Computers. Computer Science


We study the Student-Project Allocation problem (SPA), a generalisation of the classical Hospitals / Residents problem (HR). An instance of SPA involves a set of students, projects and lecturers. Each project is offered by a unique lecturer, and both projects and lecturers have capacity constraints. Students have preferences over projects, whilst lecturers have preferences over students. We present an optimal linear-time algorithm for allocating students to projects, subject to these preferences and capacities. In particular, the algorithm finds a stable matching of students to projects. Here, the concept of stability generalises the stability definition in the HR context. The stable matching produced by our algorithm is simultaneously best-possible for all students. The SPA problem model that we consider is very general and has applications to a range of different contexts besides student-project allocation.

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