To improve the performance of open-source evaluator Large Language Models (LLMs) to match GPT-4, researchers are exploring several strategies. One such strategy involves using a combination of fine-tuning and reinforcement learning alignment. By carefully combining these approaches, researchers have been able to bridge the performance gap between open-source models and GPT-4.
Another approach being explored is the use of a simple but powerful sampling strategy that allows boosting any Proficiency Control Task (PCT) model to one with arbitrarily better performance. This strategy has shown promising results in enhancing the capabilities of open-source models.
Additionally, researchers are investigating the potential of open-source models like Llama2 and Mistral in achieving performance levels comparable to GPT-4. These models have shown promising results in areas such as instruction following, reasoning, and tool usage, but further improvements are needed to match GPT-4's proficiency.
Overall, these strategies aim to optimize the performance of open-source evaluator LLMs and bring them closer to the capabilities of GPT-4.
Conventional generation benchmarks fall short in evaluating Large Language Models (LLMs) comprehensively because they often use general assessment criteria, such as helpfulness and harmlessness, which are imprecise and shallow compared to human judgment. Additionally, these benchmarks usually focus on specific tasks, such as instruction following, leading to an incomplete and skewed evaluation of the models' overall performance. These limitations have led to the development of more thorough and ethical generation benchmarks, like the BIGGEN BENCH, which measures nine different language model capabilities across 77 tasks, providing a more comprehensive and accurate evaluation.
A multifaceted evaluation approach is necessary for assessing the proficiency of Large Language Models (LLMs) due to several reasons:
Complexity and Task Diversity: LLMs are becoming increasingly complex and are expected to execute a wide range of tasks. A multifaceted evaluation approach allows us to assess their performance across diverse tasks and domains, providing a more comprehensive understanding of their capabilities.
Precise Limitations and Enhancement Areas: Such an approach helps in precisely pinpointing the limitations of LLMs and identifying potential areas for enhancement. This is crucial for the development of more proficient models.
Accurate and Reliable Assessment: Conventional generation benchmarks often use general assessment criteria that are imprecise and shallow compared to human judgment. A multifaceted evaluation, on the other hand, can provide a more accurate and reliable assessment of LLMs by using specific criteria tailored to each task.
Context-Sensitive Evaluation: A multifaceted approach can evaluate LLMs based on context-specific criteria, similar to how humans make complex judgments. This allows for a more nuanced understanding of the models' performance.
Identifying Performance Differences: By focusing on specific capabilities, a multifaceted evaluation can identify minute differences in performance between different models that might be missed by more general benchmarks.
In summary, a multifaceted evaluation approach is essential to accurately assess the proficiency of LLMs, understand their limitations, identify areas for improvement, and guide the development of more effective models.