Academia Aura
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Glossário de IA e LLM
Definições concisas do vocabulário usado na trilha.
46 termos exibidos
- AI agent
- System that uses a model in a loop to observe, decide, call tools and update state toward a goal.
- Algorithm
- Finite procedure that transforms inputs into outputs through defined steps.
- Artificial intelligence (AI)
- Field concerned with systems that perform tasks associated with perception, reasoning, learning, planning or action.
- Attention
- Mechanism that weights information from different positions when building a representation.
- Benchmark
- Standardized dataset or procedure used to compare systems, with limits set by its coverage.
- Context window
- Maximum working input and generated token span available to a model for one request.
- Data
- Recorded observations, examples or signals used to build, ground or evaluate a system.
- Deep learning
- Machine learning using multilayer neural networks to learn representations.
- Direct preference optimization (DPO)
- Method that directly optimizes a language model from preferred and rejected response pairs.
- Embedding
- Vector representation in which learned relationships can be encoded geometrically.
- Evaluation
- Systematic measurement of behavior against defined tasks, cases, criteria and thresholds.
- Fine-tuning
- Additional training that adapts a pretrained model to data, behavior or tasks.
- Foundation model
- Broadly trained model intended to be adapted or used across many downstream tasks.
- Generalization
- Ability to perform on relevant inputs not seen during training.
- Gradient
- Direction and sensitivity of loss change with respect to model parameters.
- Grounding
- Connecting generation to supplied evidence, data, observations or verified tool results.
- Guardrail
- Technical or procedural control intended to prevent, detect or contain unwanted behavior.
- Hallucination
- Generated claim or detail that is unsupported by available evidence or is factually wrong.
- Inference
- Use of a trained model to produce an output for a new input.
- Large language model (LLM)
- Large neural language model trained to predict or reconstruct tokens across broad data.
- Latency
- Elapsed time between a request and a useful response, often measured across percentiles.
- Loss
- Quantity training attempts to minimize to express prediction or objective error.
- Machine learning (ML)
- Methods that fit behavior from data rather than specifying every rule manually.
- Memory
- Mechanism that persists or retrieves information beyond a model’s immediate context.
- Model
- Parameterized function or representation used to produce predictions, decisions or generated outputs.
- Model Context Protocol (MCP)
- Open protocol for connecting AI applications to contextual resources, prompts and tools.
- Multimodal
- Able to process or generate more than one modality, such as text, image, audio or video.
- Neural network
- Layered parameterized computation inspired loosely by networks of simple connected units.
- Overfitting
- Fitting training examples too closely while performing poorly on relevant unseen cases.
- Parameter
- Value adjusted during training that shapes how a model transforms inputs.
- Prompt
- Instructions and context supplied to a generative model for a request.
- Prompt injection
- Untrusted content attempting to redirect a model or application away from intended instructions.
- Quantization
- Representing model values with lower precision to reduce memory or computation, with possible quality trade-offs.
- Reinforcement learning (RL)
- Learning behavior through actions, observations and reward signals.
- Retrieval-augmented generation (RAG)
- Retrieving external information and placing it in model context before generation.
- RLHF
- Reinforcement learning from human feedback, used to shape model behavior from preference signals.
- Self-supervised learning
- Learning signals derived from the data itself, such as predicting hidden or next parts.
- Supervised fine-tuning (SFT)
- Fine-tuning on input and desired-output examples.
- Supervised learning
- Learning from examples paired with target labels or outputs.
- Temperature
- Sampling parameter that reshapes token probabilities; higher values generally increase variation.
- Token
- Unit processed by a language model; it may be a word, word part, punctuation or other symbol.
- Tokenizer
- Method that converts text or other input into token identifiers and back.
- Tool calling
- Model production of structured arguments for an application-controlled function or service.
- Training
- Process of adjusting model parameters to improve an objective on data or interaction.
- Transformer
- Neural architecture built around attention and feed-forward blocks, widely used in language models.
- Vector database
- System optimized to store vectors and retrieve items by similarity, often for semantic search.