Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Directed FCFS Infinite Bipartite Matching   We consider an infinite sequence consisting of agents of several types and
goods of several types, with a bipartite compatibility graph between agent and
good types. Goods are matched with agents that appear earlier in the sequence
using FCFS matching, if such are available, and are lost otherwise. This model
may be used for two sided queueing applications such as ride sharing, web
purchases, organ transplants, and for abandon at completion redundancy parallel
service queues. For this model we calculate matching rates and delays. These
can be used to obtain waiting times and help with design questions for related
service systems. We explore some relations of this model to other FCFS
stochastic matching models.

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The categories of this paper are: hep-ph
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The categories of this paper are: physics
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The categories of this paper are: atom-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: eess
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The categories of this paper are: comp-gas
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The categories of this paper are: chem-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-bio
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-lat
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The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: cmp-lg
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The categories of this paper are: funct-an