The Duality of Data and Knowledge Across the Three Waves of AI
Amit Sheth, Krishnaprasad Thirunarayan

TL;DR
This paper reviews the evolving role of knowledge in AI over three waves, highlighting its resurgence in enabling more transparent, trustworthy, and human-like AI systems through hybrid approaches.
Contribution
It provides a comprehensive analysis of the historical shifts in AI from knowledge-centric to data-driven and back, emphasizing the importance of knowledge in the current and future AI landscape.
Findings
Knowledge is crucial for transparency and trust in AI.
Hybrid neuro-symbolic AI combines strengths of data-driven and symbolic approaches.
Resurgence of knowledge is driving breakthroughs in human-like AI capabilities.
Abstract
We discuss how over the last 30 to 50 years, Artificial Intelligence (AI) systems that focused only on data have been handicapped, and how knowledge has been critical in developing smarter, intelligent, and more effective systems. In fact, the vast progress in AI can be viewed in terms of the three waves of AI as identified by DARPA. During the first wave, handcrafted knowledge has been at the center-piece, while during the second wave, the data-driven approaches supplanted knowledge. Now we see a strong role and resurgence of knowledge fueling major breakthroughs in the third wave of AI underpinning future intelligent systems as they attempt human-like decision making, and seek to become trusted assistants and companions for humans. We find a wider availability of knowledge created from diverse sources, using manual to automated means both by repurposing as well as by extraction. Using…
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