Linguistic emergence in deep neural networks

Locatelli Metz, Davide

Linguistic emergence in deep neural networks

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Citació

Locatelli Metz, D. Linguistic emergence in deep neural networks. 2022. handle: http://hdl.handle.net/10230/55450

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Resum

Recent work in Emergent Communication has shown that deep neural networks can develop successful strategies of referential communication. Arguably, the extent to which they can do so depends on the properties of the communication channel that is provided to them. Here, we test this hypothesis by analyzing the protocols emerging from visual referential games with increasingly complex communication channels. More specifically, we increase the complexity by varying the vocabulary size and the length of the messages exchanged. We show that this directly influences communication success and profoundly impacts the chosen referential strategy. Our results evidence a tendency of deep nets to performbetter with greater vocabulary sizes. Moreover, we found that deep nets prefer symbolic communication, i.e. when messages consist of single symbols, rather than combinatorial languages, i.e. when messages consist of sequences of two or more symbols. Finally, we showthat the most successful communication strategy is achieved when the nets converge to a protocol that approximates a one-to-one mapping between messages and images