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Neural modeling of sequential inferences and learning over episodic memory


Authors: B. Subagdja and A.-H. Tan
Title: Neural modeling of sequential inferences and learning over episodic memory
Abstract: Episodic memory is a significant part of cognition for reasoning and decision making. Retrieval in episodic memory depends on the order relationships of memory items which provides flexibility in reasoning and inferences regarding sequential relations for spatio-temporal domain. However, it is still unclear how they are encoded and how they differ from representations in other types of memory like semantic or procedural memory. This paper presents a neural model of sequential representation and inferences on episodic memory. It contrasts with the common views on sequential representation in neural networks that instead of maintaining transitions between events to represent sequences, they are represented as patterns of activation profiles wherein similarity matching operations support inferences and reasoning. Using an extension of multi-channel multi-layered adaptive resonance theory (ART) network, it is shown how episodic memory can be formed and learnt so that the memory performance becomes dependent on the order and the interchange of memory cues. We present experiments as a proof of concepts to show that the model contrasts sequential representations in semantic memory with those in episodic memory and the model can exhibit transitive inferences consistent with human and animals data.
Keywords: Episodic memory; Adaptive resonance theory; Transitive inference
Journal Name: Neurocomputing, vol. 161
Publisher: Elsevier
Year: 2015
Accepted PDF File: Neural_modeling_of_sequential_inferences_and_learning_over_episodic_memory_accepted.pdf
Permanent Link: http://dx.doi.org/10.1016/j.neucom.2015.02.038
Reference: B. Subagdja and A.-H. Tan, “Neural modeling of sequential inferences and learning over episodic memory,” Neurocomputing, vol. 161, pp. 229 – 242, August 2015.
bibtex: 
@article {LILY-j18,
   author 	= {Subagdja, Budhitama  and Tan, Ah-Hwee},
   title 	= {Neural modeling of sequential inferences and learning over episodic memory},
   journal 	= {Neurocomputing},
   year 	= {2015},
   month 	= {August},
   volume 	= {161},
   number 	= {},
   pages 	= {229 - 242},
   publisher 	= {Elsevier},
}