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Top Ten (10) Concepts in Artificial Intelligence

From UBC Wiki
Cox & Mazumdar (2024). Definitions of artificial intelligence gathered by librarians

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Introduction

Artificial intelligence encompasses broader goals of simulating human intelligence, followed by machine learning, which focuses on learning patterns from data, and deep learning, which uses layered neural networks. These systems learn through supervised, unsupervised, and reinforcement models, each suited to different types of data and problem-solving. At the core of deep learning are neural networks, which enable advances in natural language processing which is a key area for libraries and research involving text analysis, summarization, and retrieval. Modern NLP is driven by large language models (LLMs), which rely on transformer architectures, tokens and introduce challenges like hallucination. Information retrieval has evolved through embeddings and semantic searching, improving discovery beyond keyword and controlled searching.

Issues of bias, fairness, and explainability are critical, especially in scholarly and clinical contexts. Evaluating AI requires metrics such as precision and recall to assess performance. Generative AI now enables creation of text, images, and audio, raising important ethical concerns. As a result, governance and policy addressing copyright, misinformation, and accountability are essential for responsible AI use in libraries and beyond.

Moving Beyond Chatbot Technologies

Three intertwined technical developments have moved artificial intelligence (AI) beyond traditional chatbot technologies:

  • 1) Agentic AI — the capacity of an AI system to pursue goals across multiple steps, deciding for itself which actions to take, which tools to invoke, and how to recover from errors. Agentic AI aims to accomplish complex, often long-horizon objectives with minimal human intervention by planning tasks, using external tools, maintaining memory, and adapting to changing circumstances.
  • 2) Multimodality and tool use — contemporary AI systems can process and generate multiple forms of information, including text, images, charts, audio, video, and PDFs. They can also execute code, browse the web, query databases, and interact directly with software applications and digital interfaces.
  • 3) Persistent context and self-correction — the ability to retain and use large amounts of information throughout an extended task, maintain working notes and memory, evaluate intermediate results, and validate or revise outputs when errors are detected.
  • First-generation chatbots such as ChatGPT (2022) were able to draft an essay paragraph, answer questions, or assist with studying. These capabilities, while useful, were largely transactional and confined to a single interaction. By contrast, AI agents autonomously conduct literature searches, extract data from dozens of PDFs, write and execute analytical code, draft a manuscript, verify citations, and iteratively refine its work. Agentic-based AI systems represent a qualitative shift beyond conventional chatbots, creating new opportunities for research and productivity while simultaneously challenging existing academic and professional practices.

Note: ..."checks its own work" is not yet reliably true. Current agents can verify, critique, and revise their outputs, but they can also confidently validate incorrect conclusions. The more defensible distinction is not self-checking but autonomous execution of complex workflows..

Top Ten Concepts in Artificial Intelligence

1) Artificial intelligence (AI) vs. Machine learning vs. Deep research
  • Hierarchical relationship of fields:
  • AI: broad discipline of building systems that perform tasks requiring human-like intelligence
  • ML: subset of AI where systems learn patterns from data
  • DL: subset of ML using multi-layer neural networks
2) Supervised, Unsupervised, and Reinforcement Learning
  • Core learning paradigms in ML:
  • Supervised learning: trained on labeled datasets (e.g., image classification)
  • Unsupervised learning: discovers structure in unlabeled data (e.g., clustering, topic modeling)
  • Reinforcement learning: learns via reward signals through interaction (e.g., game-playing agents)
3) Neural networks
  • Computational models inspired by biological neurons
  • Composed of layers of weighted connections and activation functions
  • Foundational architecture for modern deep learning systems
4) Natural language processing
  • Field focused on computational understanding and generation of human language
  • Includes tasks such as classification, summarization, translation, named entity recognition, and embeddings-based retrieval
5) Large language models (LLMs)
  • Deep learning models trained on large text corpora (e.g., GPT-style architectures)
  • Key concepts: transformers, tokens, context windows, fine-tuning, and hallucination risk
6) Information retrieval (IR) and semantic search
  • Methods for finding relevant information in large corpora
  • Includes keyword search, vector embeddings, and semantic similarity search
  • Underpins modern AI-powered discovery systems
7) Bias, fairness, and explainability
  • Study of how training data and model design influence outputs
  • Focus on transparency, interpretability, and mitigation of algorithmic bias
8) Evaluation metrics for AI systems
  • Quantitative measures of model performance:
  • Accuracy, precision, recall, F1 score, ROC-AUC
  • Used to compare classification, retrieval, and summarization systems
9) Generative AI
  • Systems that generate new content (text, images, audio, multimodal outputs)
  • Includes transformer-based text generation and diffusion models for image synthesis
10) Ethics, governance, and policy in AI
  • Concerns include copyright, misinformation, accountability, reproducibility, and data governance
  • Debates in AI
  • Especially relevant in education, libraries, publishing, and healthcare contexts

References

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