• Publications
  • Influence
Incremental Learning from Noisy Data
This paper first reviews a framework for discussing machine learning systems and then describes STAGGER in that framework, which is based on a distributed concept description which is composed of a set of weighted, symbolic characterizations. Expand
Beyond Incremental Processing: Tracking Concept Drift
This work presents a learning method that is able to learn complex Boolean characterizations while tolerating noise and drift and empirical results from an implementation are presented to show its ability to track changing concepts over time. Expand
Categorical Speech Processing in Broca's Area: An fMRI Study Using Multivariate Pattern-Based Analysis
The consistent MVPA findings from two independent datasets strongly indicate that Broca's area participates in categorical speech perception, with a possible role of translating speech signals into articulatory codes. Expand
Incremental learning from noisy data
Induction of a concept description given noisy instances is difficult and is further exacerbated when the concepts may change over time. This paper presents a solution which has been guided byExpand
FOUL-UP: A Program that Figures Out Meanings of Words from Context
The inferencing task of figuring out words from context is implemented in the presence of a large database of world knowledge to figure out likely definitions for unknown words, and to create context-specific definitions for such words. Expand
Engines of the Brain: The Computational Instruction Set of Human Cognition
Simulation and analysis of the circuits of the brain has led to derivation of a detailed set of elemental and composed operations emerging from individual and combined circuits, representing a novel and potentially fruitful research path for the construction of human-level intelligence. Expand
Enhancement by an Ampakine of Memory Encoding in Humans
The results suggest that positive modulators of AMPA receptors selectively improve at least some aspects of memory. Expand
Origins and Distribution of Cholinergically Induced β Rhythms in Hippocampal Slices
It is concluded that cholinergically driven β rhythms arise independently in hippocampal subfields from oscillatory circuits involving (1) bursts of pyramidal cell discharges, (2) activation of a subset of feedback interneurons that project apically, and (3) production of a GABAA-mediated hyperpolarization in the outer portions of the apical dendrites ofPyramidal neurons. Expand
Short-Latency Single Unit Processing in Olfactory Cortex
It appears that most cells in piriform cortex do not respond to most odors, i.e., coding is exceedingly sparse and a subgroup of the predominant broad-spike cell type does react to several odors but this response drops out with repeated exposure, perhaps because of training. Expand
A drug that facilitates glutamatergic transmission reduces exploratory activity and improves performance in a learning‐dependent task
A recently developed benzamide compound which facilitates glutamate receptor‐mediated synaptic responses was used to test behavioral consequences of enhanced glutamatergic transmission and found that the drug enhanced retention of information about prior choices and the maze environment. Expand