Vol. 22:2 (2021) ► pp.212–243
Interaction history as a source of compositionality in emergent communication
In this paper, we explore interaction history as a particular source of pressure for achieving emergent compositional communication in multi-agent systems. We propose a training regime implementing template transfer, the idea of carrying over learned biases across contexts. In the presented method, a sender-receiver dyad is first trained with a disentangled pair of objectives, and then the receiver is transferred to train a new sender with a standard objective. Unlike other methods (e.g. the obverter algorithm), the template transfer approach does not require imposing inductive biases on the architecture of the agents. We experimentally show the emergence of compositional communication using topographical similarity, zero-shot generalization and context-independence as evaluation metrics. The presented approach is connected to an important line of work in semiotics and developmental psycholinguistics: it supports a conjecture that compositional communication is scaffolded on simpler communication protocols.
Article outline
- 1.Introduction
- 2.Related work
- Inductive biases for compositional communication
- Obverter approach
- Population-based training
- Multi-task training
- Evolutionary origins of grammar
- Generalized signaling games
- Motivation for our approach
- 3.Method
- 3.1Experimental setup
- 3.1.1Dataset
- 3.1.2Object naming game
- 3.2Architecture of the agents
- General setup
- Vision module
- Sender
- Receiver
- Hyperparameters
- 3.3Template transfer approach
- 3.1Experimental setup
- 4.Experiments and results
- 4.1Measuring compositionality
- Test set accuracy
- Context-independence
- Topographical similarity
- 4.2Baselines
- Random baseline
- Same architecture
- Obverter baseline
- 4.3Results
- 4.4Visualizing the activations of the receiver
- 4.1Measuring compositionality
- 5.Discussion
- Sources of compositionality
- Evolutionary game-theoretic interpretation
- Semiotic interpretation
- Cognitive interpretation
- Developmental interpretation
- 6.Conclusions
- Limitations
- Acknowledgements
- Notes
-
References
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