Mike Pacer 📨

A graduate student at UC Berkeley in Tania Lombrozo's Cognition and Concepts Laboratory and Tom Griffith's Computational Cognitive Science Laboratory.

A computational cognitive scientist — I make maths on minds.

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Programme(in progress):

Updated: 2016_06_5_0333

Continuity

  • time
    • temporal causation
    • ordering and approximate ordinality
    • mixed-class stochastic processes
    • continuous-time & discrete-time systems interacting
  • causal measure
    • extending Noisy-OR/AND-NOT
    • as analogs of generation and prevention
    • to both continuous measures and continuous-time
    • (possibly) as exemplified by causal information flow
  • calculus of ideas
    • generalization of causal information flow to continuous-time stochastic processes, over continuous dimensions and discrete/structured representations.
      • measure chains have analysis, and may be an appropriate tool.
  • continuous theories
    • generalization gradients
    • similarity spaces
    • compositionality
    • commeasurability of data despite embedding in different spaces

Causal Explanation

  • explanatory virtues
    • simplicity
    • reaism
    • notions of probability
  • formal models
  • science of the particular

Evolution of Ideas (& other arbitrary things)

  • formal models of cultural learning
  • conductive bias
    • the role of notational systems in the biases transmitted over time
  • iterative learning
  • serial reproduction
  • science of the artificial
  • small samples & neutral bias currents
    • see also, [continuity][]
  • history of
    • mathematical/logical notation
    • writing systems
    • formal logic [Pierce — Gödel]
    • science
    • philosophy of science
    • medicine
    • epidemiology
    • nosology
    • anatomy as a categorization problem
    • notions of continuity
    • notions of contagion
    • notions of mechanism
    • publishing/typesetting
    • statistics
    • mathematics
    • biology & philosophy of biology
    • taxonomy as categorization problem
    • phenetics/cladistics
    • units & levels of selection
    • design
      • experimental
    • architecture
    • typographic (& other graphic design)
  • design
    • experimental
    • architecture
    • typographic (& other graphic design)
      • letter-spacing
    • serifs
    • communication-design (written and otherwise)

Formal frameworks

  • Levels of Analysis
    • rational analysis
    • extending Marr's levels
  • Hierarchical Bayesian networks
    • causal Bayesian networks
    • continuous-time Bayesian networks
    • Poisson cascades
    • Markov Modulated poisson process
    • theory-based causal induction
  • Probabilistic, compositional semantics (a newer interest)
    • e.g., the Church language
    • caching/memoizing
  • Topic models & other
    • dynamic topic models
    • discrete time
    • continuous time
    • extensions that allow only a finite sub-dictionary to be attached to a topic
    • tags
    • unsupervised strict taxonomization
    • dictionary learning
    • sense disambiguation & polysemy
  • Non parametric Bayseian Inference
    • Chinese restaurant process (mutually exclusive categories)
    • Indian Buffet process (additive featural representations)
    • Transformations over non-parametric processes
  • Inferential methods
    • Variational Inference
    • Stochastic variational inference
    • optimization theory as applies to VI
    • Monte Carlo (sampling) methods
    • Markov Chain Monte Carlo
    • Hamiltonian/inertial Monte Carlo
    • Overregularization
    • Distinctions between interpolation and extrapolation

Topics I'm interested in but know little about

  • Decision theory
    • Partially Observed Markov Decision Processes (POMDPs)
    • Contextual Bandits
    • Search in large, structured spaces
    • explore/exploit tradeoffs
    • evolutionary arguments for extended childhood
    • Formally defining the relationship between Inference and Decision Theory
  • Failure analysis
    • Intrusion Detection Systems
    • Automated Medical Diagnosis
    • Automated Case-file Reference Retrieval
    • Automated Police Scheduling/Anti-terrorism
    • Earthquake Prediction
  • Sensory extension
  • Archaeology and other "historical sciences"

activities that are not work, but of potential interest

  • typography
  • drawing
  • painting
  • photography
  • home automation
  • quantified-self
  • recording audio
    • not releasing audio for an obscenely long time
  • hearthstone and other "games of the moment"
  • realizing the idea of things, without realizing any thing
Transient