Ontology Dictionary

A typed, navigable dictionary of the classes, relationships, inference rules, and reusable entries in this research ontology.

Dictionary

Browse the vocabulary used to describe and connect the research on this site.

Ontology classes

Relationship vocabulary

Predicates are authored in the displayed direction. The inverse reading names the same assertion when followed from range to domain.

PredicateInverse readingMeaningDomainRange
Research assertions
addressesaddressesaddressed byConnects a publication to a principal research area to which it contributes.PublicationResearch area
applies-toapplies tohas applicable resultConnects a research result or other research object to the object or setting for which it holds.Research objectResearch object
characterizescharacterizescharacterized byConnects a research result or other research object to a phenomenon or quantity whose behavior it describes.Research objectResearch object
compares-withcompares withcompared withConnects publications that directly compare their findings, methods, or conclusions.PublicationPublication
enablesenablesenabled byConnects a research object to an outcome or capability it makes possible.Research objectResearch object
extendsextendsextended byConnects a publication to an earlier publication whose result or analysis it directly generalizes or develops.PublicationPublication
learnslearnslearned byConnects an algorithm to the research object it learns or recovers.AlgorithmResearch object
optimizesoptimizesoptimized byConnects an algorithm to the objective it is designed to optimize.AlgorithmObjective
part-ofpart ofhas partRelates a research object to a larger research object of which it is a component.Research objectResearch object
producesproducesproduced byConnects a publication to a research object introduced or established as an output of the work.PublicationResearch object
reproducesreproducesreproduced byConnects a publication to a publication whose reported result it attempts to reproduce.PublicationPublication
specialization-ofspecialization ofhas specializationRelates a more specific research object to the broader research object of which it is a kind.Research objectResearch object
studiesstudiesstudied byConnects a publication or research area to a research object it investigates as a subject.Publication, Research areaResearch object
subarea-ofsubarea ofhas subareaRelates a narrower research area to the broader research area that contains it.Research areaResearch area
used-inused inusesConnects a research object to a research area in which it is used.Research objectResearch area
usesusesused byConnects a publication to a research object it employs without presenting that object as its primary subject or output.PublicationResearch object
Graph structure
instance-ofinstance ofhas instanceAssigns an ontology entity to the class whose membership it instantiates.Ontology entityOntology class
subclass-ofsubclass ofhas subclassRelates a narrower ontology class to a broader class whose members include every member of the narrower class.Ontology classOntology class

Inference rules

These entailments are computed from authored assertions and remain marked as inferred in the graph.

Defined entries

Classes
Research area

Adversarial robustness

The study of how learning systems behave under deliberately chosen perturbations intended to cause errors or expose vulnerabilities.

1 publication2 graph connections
Research area

Computer vision

The study of computational systems that infer structure, meaning, or action from visual data.

1 publication2 graph connections
Research area

Developmental interpretability

The study of how interpretable representations, mechanisms, and circuits form and change during training.

1 publication3 graph connections
Research area

Implicit bias

The study of how a learning algorithm selects among multiple solutions even without an explicit preference in the objective.

1 publication2 graph connections
Research area

Mechanistic interpretability

The study of how internal components and computations of learned models produce their behavior.

3 publications6 graph connections
Research area

Meta-learning

The study of systems that use experience across tasks to learn how to adapt to a new task.

1 publication2 graph connections
Research area

Statistical learning theory

The mathematical study of what can be learned from finite data and how performance depends on data, model classes, objectives, and algorithms.

3 publications8 graph connections
Research area

Statistical modeling

The construction and analysis of explicit probabilistic models for how data are generated.

1 publication2 graph connections
Research area

Training dynamics

The study of how a model's parameters, representations, and computations evolve during learning.

2 publications5 graph connections
Research object

Convergence guarantee

A formally justified statement that an iterative procedure approaches a specified solution set or performance criterion under explicit assumptions.

2 publications3 graph connections
Research object

Forward invariance

A property of a subset of a dynamical system's state space such that every trajectory beginning in the subset remains there at all later times for which it is defined.

1 publication2 graph connections
Research object

Generalization

The ability of a learned model to perform well on data that was not used to fit its parameters.

5 publications8 graph connections
Research object

Generalization bound

A formally justified bound on the gap between performance on observed data and performance on an underlying population.

1 publication3 graph connections
Research object

Hypothesis-class stability

A uniform regularity property that bounds how much the predictions of models in a hypothesis class can change under specified transformations of their input context.

1 publication1 graph connection
Research object

In-context learning

The adaptation of a model's predictions to examples or instructions supplied in its input context without updating model parameters.

1 publication3 graph connections
Research object

Induction head

An attention-head mechanism that uses earlier context matches to promote a corresponding continuation token.

1 publication5 graph connections
Research object

Interpretable direction

A direction in a learned feature or latent space associated with a recognizable factor of variation.

1 publication1 graph connection
Research object

Invariance

A property under which a specified transformation or evolution preserves a mathematical object, relation, set, or system behavior.

2 publications4 graph connections
Research object

Label noise

Corruption in which observed training labels differ from the labels specified by an underlying target process.

1 publication1 graph connection
Research object

Learned representation

A feature space or encoding produced by learning that exposes structure useful for prediction, transfer, or analysis.

2 publications5 graph connections
Research object

Learning without mixing

A statistical phenomenon in which learning from dependent observations avoids a multiplicative sample-complexity penalty from the mixing time.

1 publication1 graph connection
Research object

Mechanistic characterization

A scientific account that identifies an internal component, computation, or circuit responsible for observed behavior.

1 publication1 graph connection
Research object

Next-token prediction

The task of predicting a conditional distribution for the next token given a preceding token context.

2 publications5 graph connections
Research object

Overparameterization

A regime in which a model has more adjustable degrees of freedom than are needed to represent or interpolate the target structure.

1 publication1 graph connection
Research object

Permutation invariance

An invariance under a specified relabeling or reordering of elements.

1 publication2 graph connections
Research object

Pretraining

Training performed before a model is adapted to a target task or used in its target setting, typically on broad data with a general or self-supervised objective.

0 publications3 graph connections
Research object

Rephrasability

A property of a sequential data-generating process that relates prediction on a new context to denoising problems over contexts generated by the process.

1 publication1 graph connection
Research object

Reproduction result

A documented assessment of whether and under what conditions previously published computational findings can be reproduced.

1 publication1 graph connection
Research object

Sample complexity bound

A formally justified bound on how much data is sufficient or necessary to achieve a specified learning objective.

2 publications3 graph connections
Research object

Sparse attention pattern

An attention structure in which substantial interaction weight is concentrated on a restricted subset of token positions.

1 publication5 graph connections
Research object

Theoretical guarantee

A formally stated and justified claim about the behavior of a system under explicit assumptions.

5 publications9 graph connections
Algorithm

Adversarial training

A training algorithm that fits a model on deliberately challenging perturbations chosen to expose its vulnerabilities.

2 publications5 graph connections
Algorithm

Contrastive learning

A family of learning algorithms that forms representations by comparing samples designated as similar or dissimilar.

1 publication3 graph connections
Algorithm

Data augmentation

An algorithmic procedure that expands or transforms training examples to encode useful variation and invariance.

1 publication2 graph connections
Algorithm

Empirical risk minimization

A learning rule that selects a predictor by minimizing average loss over observed data within a specified hypothesis class.

3 publications7 graph connections
Algorithm

First-order ANIL

A first-order meta-learning algorithm that adapts a task-specific output layer while learning a shared representation across tasks.

1 publication6 graph connections
Algorithm

Gradient clipping

An algorithmic operation that limits the magnitude of gradients or parameter updates during optimization.

1 publication1 graph connection
Algorithm

Regularization

A family of algorithmic techniques that constrain or bias learning to promote selected properties of the learned solution.

0 publications0 graph connections
Algorithm

Self-attention

An attention operation in which queries, keys, and values are derived from representations in the same sequence.

1 publication2 graph connections
Model

Autoregressive process

A sequential stochastic model whose conditional distribution at each step is parameterized as a function of preceding observations.

1 publication4 graph connections
Model

Disentangled Transformer

An attention-only Transformer variant that removes multilayer perceptrons and replaces additive residual connections with concatenation so that successive computations remain explicit.

1 publication4 graph connections
Model

Generative adversarial network

A generative model comprising a generator trained against a discriminator that distinguishes generated samples from observed data.

1 publication3 graph connections
Model

Generative model

A model of a data-generating distribution from which new observations can be sampled.

0 publications1 graph connection
Model

Language model

A probability model over sequences of tokens, used to score or generate text and other sequential data.

0 publications3 graph connections
Model

Linear dynamical system

A dynamical model whose state evolution and observation equations are linear in their state and input variables.

1 publication2 graph connections
Model

Markov chain

A stochastic process whose next-state distribution depends on the past only through a specified current state.

3 publications4 graph connections
Model

Neural network

A parameterized model composed of interconnected computational units arranged in layers or another directed computation graph.

0 publications3 graph connections
Model

Normalizing flow

A probabilistic model family that transforms a simple base distribution through a sequence of invertible mappings.

1 publication1 graph connection
Model

Training-trajectory model

A formal or empirical model that describes how a learning system changes over the course of training.

1 publication1 graph connection
Model

Transformer

A family of neural sequence architectures built around attention-based interactions between positions.

1 publication9 graph connections
Model

Vector autoregressive process

A multivariate stochastic process in which each vector-valued state is a linear combination of a fixed number of preceding states plus an innovation term.

1 publication3 graph connections
Objective

Adversarial training objective

A robust objective that evaluates loss on perturbations selected to increase error within a specified threat set.

0 publications2 graph connections
Objective

Contrastive objective

A loss that rewards selected examples or views for receiving more similar representations than designated alternatives.

0 publications2 graph connections
Objective

Cross-entropy loss

A loss that scores a predicted probability distribution by the negative log-probability assigned to the observed outcome.

1 publication3 graph connections
Objective

Empirical risk

An objective formed by aggregating a loss over an observed sample.

0 publications3 graph connections
Objective

Loss function

An objective that assigns a scalar cost to a prediction, action, parameter setting, or comparison with a target.

0 publications5 graph connections
Objective

Orthogonality penalty

A regularization objective that penalizes deviation from an orthogonality constraint among selected vectors or transformations.

1 publication2 graph connections