## Models and Estimation

- graphical models (inference, parameter and structure learning, ...)
- causality
- approximations to Bayesian reasoning (variational methods, message passing, ...)
- Bayesian nonparametrics
- Gaussian processes
- other stochastic processes (Dirichlet, Pitman-Yor, ...)
- Bayesian model combination
- objective Bayesian methods
- deep belief nets, deep RBMs
- frequentist methods (maximum likelihood, ...)
- statistical learning theory, computational learning theory
- nonparametric models
- kernel methods
- large margin methods
- boosting
- ensemble methods
- model selection, feature/variable selection
- spectral methods
- nonlinear embedding, manifold learning
- matrix and tensor factorization
- sparse estimation, compressed sensing
- maximum entropy, minimum description length, compression, bottlenecks
- asymptotics, consistency
- information theory
- information geometry

## Problem types

### Supervised learning

- classification and regression
- structured prediction
- prediction with missing data
- active learning, experimental design
- online learning

### Unsupervised and semi-supervised learning

- density estimation
- clustering
- latent variable models (mixtures, topic models, PCA, ...)

### Reasoning about complex structures

- logic and probability
- representation languages
- relational/structured learning
- learning on graphs
- spatial models
- time series and sequence models

### Decision-making and control

- decision theory
- reinforcement learning
- planning
- control theory

### Reasoning about multiple agents

- game theory
- no-regret learning
- mechanism design
- multi-agent systems

## Algorithms and applications

### Computation and algorithms

- combinatorial optimization, search
- convex optimization
- gradient-based optimization
- numerical integration and summation
- Monte Carlo methods
- parallel and distributed algorithms
- high performance architectures (clusters, clouds, GPGPUs, ...)
- large scale learning systems

### Applications and software

- biology and genomics
- brain computer interfaces, brain imaging
- cognitive science
- collaborative filtering
- finance
- economics
- informatics
- information retrieval
- linguistics, natural language processing
- medical imaging
- network data analysis
- neuroscience
- robotics
- statistical databases
- scientific visualization
- signal processing
- software packages
- vision, image processing
- the web