Building LLMs with sensitive data: A practical guide to privacy and security

Graphic depicts a doctor reviewing patient notes in a clinic to illustrate LLM data privacy and security — highlighting the importance of safeguarding sensitive information such as PII and PHI in AI model training and evaluation.

Know your data: what “sensitive” means in practice Why this matters for LLMs: leakage is real Modern models can memorize and later regurgitate rare or sensitive strings from training corpora. Research has demonstrated the extraction of training data from production LLMs via carefully crafted prompts, and a growing body of work on membership-inference risks.  The […]

FAQs: Human data annotation for generative and agentic AI

Graphic depicts a vibrant annotation-focused workspace with laptops and transparent displays to illustrate FAQs on RLHF, red teaming, and data annotation in AI systems.

What is human data annotation in generative AI? Human data annotation is the process of labeling AI training data with meaning, tone, intent, or accuracy checks, using expert human reviewers. In generative AI, this helps models learn to produce outputs that are truthful, emotionally appropriate, localized to be culturally relevant, and aligned with user intent. […]

Generative AI glossary for human data annotation

Graphic depicts a warm office desk with a laptop, notebook, and floating AI glossary terms like factuality, RLHF, and accuracy to illustrate Gen AI glossary for LLMO.

Agent evaluation The process of assessing how well an AI agent performs its tasks, focusing on its effectiveness, efficiency, reliability, and ethical considerations. Example: An annotator reviews a human-agent AI interaction, determining whether the person’s needs were met, and whether there was any frustration or difficulty. Attribution annotation Labeling where facts or statements originated, such […]

Enterprise AI software: Use cases from top tech companies

Graphic depicts a clean virtual workspace with floating icons of charts, messages, and a robotic arm to illustrate enterprise AI software

Gen AI is the new baseline for enterprise software Top-tier tech companies such as Microsoft, Salesforce, and Google are setting a new standard for AI enterprise software. Gen AI capabilities are becoming a must-have. Gartner projects that over 80% of software providers will embed gen AI into their products by 2026, driven by a demand […]

Why inter‑annotator agreement is critical to best‑in‑class gen AI training

Graphic depicts four expert annotators (majority women, multiracial) working with digital screens displaying graphs and charts to illustrate annotation quality metrics, expert data annotation, and inter-annotator agreement

What is inter‑annotator agreement (IAA) and why is it important? IAA measures how consistently multiple annotators label the same content. It helps quantify whether annotation guidelines are clear and whether annotators share a reliable understanding. Common metrics: Even seasoned experts often show α = 0.12–0.43 in high‑subjectivity tasks like emotional attribute scoring, especially before refining […]

Why gen AI quality requires rethinking human annotation standards

Graphic depicts two comparison scales — one labeled 'accuracy' with binary labels and the other labeled 'agreement' — to illustrate Inter-annotator agreement, Human-in-the-loop AI, and the importance of high-quality training data

From accuracy to agreement: A new lens on quality Traditional AI annotation tasks (e.g. labeling a cat in an image) tend to yield high human agreement and low error rates. Annotators working with clear guidelines often achieve over 98% accuracy — sometimes even 99.99% — especially when backed by tech-assisted workflows. But these standards don’t […]

Beyond words: 10 subtle layers of human context AI still struggles to understand

Graphic depicts a woman in a modern office wearing headphones and working at a computer to illustrate human language cues and the nuanced communication machines often miss

Irony and sarcasm What it is: Saying the opposite of what is meant, often with a tonal cue. Example: “Oh, fantastic job…” said with clear frustration. Why machines miss it: Literal interpretation of words leads to mislabeling intent. Pragmatic implicature What it is: Inferring meaning beyond explicit words, based on context. Example: “It’s cold in […]

Preventing AI bias: How to ensure fairness in data annotation   

Ensuring fairness in data annotation requires expertise, judgment and nuance, much like a chef’s approach to weighing and measuring ingredients

What is bias in AI? AI bias occurs when an AI model generates results that systematically replicate erroneous and unfair assumptions, which are picked up by the algorithm during the machine learning process.  For example, if an AI system designed to diagnose skin cancer from images is primarily trained with images of patients with fair […]

Golden datasets: Evaluating fine-tuned large language models

The golden dataset, represented by the gold bars in this illustration, represents the standard to evaluating and fine-tuning large language models

What is a golden dataset? A golden dataset is a curated collection of human-labeled data that serves as a benchmark for evaluating the performance of AI and ML models, particularly fine-tuned large language models. Because they are considered ground truth — the north star for correct answers — golden datasets must contain high-quality data that […]

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