AI Evaluation and Testing: How to Know When Your Product Works (or Doesn’t)
Dec 10, 2024
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Des Traynor, founder of Intercom, shares insights on how generative AI is reshaping product development. Rishabh Mehrotra from Sourcegraph emphasizes the need for robust evaluation processes over mere model training. Tamar Yehoshua, President of Glean, discusses the challenges of using large language models in sensitive data environments. Simon Last, co-founder of Notion, highlights the importance of continuous improvement and iterative development. Together, they provide a captivating look at ensuring AI products are effective and reliable.
Generative AI challenges traditional product development by requiring developers to prioritize technical capabilities before identifying user problems for effective solutions.
The focus on creating realistic evaluation datasets is crucial, as it helps ensure that measurements effectively reflect real-world user interactions and improve user experience.
Continuous improvement practices, such as failure logging and user opt-in data sharing, play a vital role in refining AI models and enhancing product reliability.
Deep dives
The Importance of Real-World Testing
Evaluating AI products requires testing in real-world scenarios, as highlighted by Dez Trainor's concept of torture tests. These tests examine how well a product performs under stressful and unpredictable conditions that users may encounter. The effectiveness of changes made to models or prompts can only be confirmed once the product is deployed using actual production data. This understanding challenges the belief that results can be gauged in a binary fashion, underscoring the need for a spectrum-based approach to success metrics.
Evolving Product Development Strategies
The introduction of generative AI fundamentally alters the traditional product development cycle, necessitating new methods for defining and validating user problems. Rather than starting with user problems, developers often must first identify technical capabilities that can address those issues. This shift places increased importance on ambiguity and requires developers to adjust their mental models and strategies when creating and shipping features. Consequently, understanding the full range of potential user interactions becomes crucial to the ongoing success of AI-powered products.
The Critical Role of Evaluation Metrics
Rishabh Mehatra emphasizes that in the realm of machine learning, crafting appropriate evaluation metrics often outweighs the importance of training an effective model. The zero to one metric serves as a foundational assessment to determine a model's performance against established benchmarks. However, real-world usage involves complexities that standard evaluations, such as human benchmarks, may not address effectively. Thus, creating evaluation datasets that reflect realistic user interactions is vital for ensuring that improvements translate into enhanced user experiences.
Navigating Non-Deterministic Outcomes
Tamar Yehoshua illustrates the challenge of ensuring consistency in AI outputs, particularly in enterprise contexts where users expect reliable performance. An essential strategy involves utilizing LLMs as evaluators to assess responses against predefined standards, thereby reducing the unpredictability inherent in AI systems. This approach includes developing human-like prompt suggestions based on historical team interactions, which guide new users toward achieving accurate and productive outcomes. Ultimately, fostering a better understanding of AI limitations among users remains a priority to align their expectations with the capabilities of the technology.
Continuous Improvement Through Failure Log Analysis
Simon Last discusses how Notion leverages failure logging to create a robust dataset of regressions that inform product enhancements. By systematically analyzing logged failures and reproducing those scenarios, the team iteratively refines prompts and evaluations, ensuring continuous improvement and error correction. Privacy considerations are paramount, with users given the choice to opt-in for data sharing solely for evaluation purposes. This practice allows Notion to maintain data integrity while gaining insights into user interactions and system performance, paving the way for enhanced reliability in their AI applications.
This episode of AI Native Dev, hosted by Simon Maple and Guy Podjarny, features a mashup of conversations with leading figures in the AI industry. Guests include Des Traynor, founder of Intercom, who discusses the paradigm shift generative AI brings to product development. Rishabh Mehrotra, Head of AI at SourceGraph, emphasizes the importance of evaluation processes over model training. Tamar Yehoshua, President of Products and Technology at Glean, shares her experiences in enterprise search and the challenges of using LLMs in data-sensitive environments. Finally, Simon Last, Co-Founder and CTO of Notion, talks about continuous improvement and the iterative processes at Notion. Each guest provides invaluable insights into the evolving landscape of AI-driven products.
Watch the episode on YouTube: https://youtu.be/gZ4sGROvOdQ
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