Learn How Gen AI Booms- Insights Into Explainable AI
Introduction
Artificial Intelligence (AI) is revolutionizing industries by driving unprecedented levels of automation. Generative AI, a subset of AI, is at the forefront of this transformation, offering powerful tools for content creation, decision-making enhancement, and operational efficiency improvement. As organizations increasingly rely on generative AI, the need for transparency and trust in these systems becomes paramount. This blog explores the evolving landscape of explainable AI , highlighting innovative approaches to ensure AI outputs are trustworthy, ethical, and understandable.
Generative AI Boom - Redefining Key Industries and Tackling Its Flaws
Generative AI is delivering substantial value across various sectors, including:
- Healthcare: Using few-shot learning models like GPT-3.5 to generate public-facing summary reports.
- Banking: Enhancing wealth managers’ experiences through improved semantic search and document summarization.
The appetite for generative AI is projected to grow significantly, with substantial business spend forecasted for 2024. However, alongside its benefits, generative AI can produce meaningless outputs, posing challenges that necessitate robust explainability mechanisms.
Beyond Basics - Advanced Techniques for AI Explainability
Explainability is crucial for several reasons:
- Regulation: Compliance with legal standards often requires a clear understanding of AI decision-making processes.
- Trust: Users must understand how AI systems arrive at specific conclusions to trust their outputs.
- Ethics: Transparent AI can help identify and mitigate biases, ensuring fair and ethical outcomes.
Traditional Methods of AI Explainability
Before the advent of large language models (LLMs), various methods were used to explain AI outputs, including:
- BLEU and ROUGE: Metrics for evaluating the similarity and accuracy of model outputs.
- Perplexity: Measuring how well a model predicts text samples.
- Human Evaluation: Rating outputs based on relevance, fluency, coherence, and quality.
- Diversity Measures: Assessing the uniqueness and variety of responses.
While these methods offer insights, they often fall short when applied to complex LLMs, which require more sophisticated and scalable explainability techniques.
LLMs Evaluating Other LLMs - A Novel Approach Through CheiAI
One promising approach to enhancing explainability is using LLMs to evaluate other LLMs. This method leverages the strengths of automation, scale, and speed to provide a robust solution for generative AI explainability. The benefits of LLM-to-LLM evaluation include:
- Balanced Metrics: Combining context relevance, groundedness, and answer relevance ensures a comprehensive evaluation.
- Sensitivity: LLMs can understand and assess the nuances of generated content better than traditional methods.
- Scalability: Automated evaluation allows for processing large volumes of data quickly.
Key Metrics for Explainability
To ensure effective explainability, it’s essential to define metrics that align well with large language models (LLMs). Three crucial metrics are answer relevance, which determines whether the answer is pertinent to the query; context relevance, which assesses how closely the query matches the retrieved content; and groundedness, which evaluates the alignment of answers with the provided content and context. Together, these metrics form a triad that provides a holistic view of the AI’s performance, especially in tasks involving retrieval-augmented generation (RAG) architectures.
The Metric Triad in Action
In RAG architectures, tasks are broken down into three touchpoints: query, context, and response. The metric triad helps measure the meaningfulness of answers by examining the input, output, and intermediate results. This approach is supported by feedback functions and scoring systems that provide detailed evaluations, including:
- Score: A numerical value indicating performance.
- Criteria: Specific factors considered in the evaluation.
- Supporting Evidence: Reasons for the given score, ensuring transparency in the evaluation process.
The Double-Edged Sword of LLM Evaluation- Addressing Key Challenges
Despite its advantages, using LLMs to evaluate other LLMs is not without challenges:
- Sensitivity: High sensitivity to prompting behavior can make evaluations unpredictable.
- Task Complexity: LLMs may struggle with tasks requiring extensive reasoning or managing multiple variables.
Ongoing improvements in LLM technology and increased usage can enhance their evaluation capabilities over time.
Building a Trustworthy Future for Generative AI
As generative AI continues to evolve, ensuring its outputs are explainable and trustworthy is critical. The innovative approach of using LLMs to evaluate other LLMs offers a scalable, sensitive, and balanced solution to this challenge. By adopting robust explainability metrics and continuously refining evaluation techniques, organizations can harness the full potential of generative AI while maintaining trust and ethical standards. As we move forward, it is essential to keep pushing the boundaries of explainable AI, integrating new methods and technologies to create transparent and reliable AI systems. This journey towards explainability will not only enhance the value of generative AI but also foster a more ethical and trustworthy AI landscape.