With David Rumelhart and Ronald J. Williams, Hinton was co-author of a highly cited paper published in 1986 that popularised the backpropagation algorithm for training multi-layer neural networks,[13] although they were not the first to propose the approach.[14] Hinton is viewed as a leading figure in the deep learning community.[20] The image-recognition milestone of the AlexNet designed in collaboration with his students Alex Krizhevsky[21] and Ilya Sutskever for the ImageNet challenge 2012[22] was a breakthrough in the field of computer vision.[23]
Upon arrival in Canada, Geoffrey Hinton was appointed at the Canadian Institute for Advanced Research (CIFAR) in 1987 as a Fellow in CIFAR's first research program, Artificial Intelligence, Robotics & Society.[42] In 2004, Hinton and collaborators successfully proposed the launch of a new program at CIFAR, Neural Computation and Adaptive Perception[43] (or NCAP, which today is named Learning in Machines & Brains). Hinton would go on to lead NCAP for ten years.[44] Among the members of the program are Yoshua Bengio and Yann LeCun, with whom Hinton would go on to win the ACM A.M. Turing Award in 2018.[45] All three Turing winners continue to be members of the CIFAR Learning in Machines and Brains program.[46]
Hinton taught a free online course on Neural Networks on the education platform Coursera in 2012.[47] He joined Google in March 2013 when his company, DNNresearch Inc., was acquired, and was at that time planning to "divide his time between his university research and his work at Google".[48]
While Hinton was a postdoc at UC San Diego, David E. Rumelhart and Hinton and Ronald J. Williams applied the backpropagation algorithm to multi-layer neural networks. Their experiments showed that such networks can learn useful internal representations of data.[13] In a 2018 interview,[50] Hinton said that "David E. Rumelhart came up with the basic idea of backpropagation, so it's his invention". Although this work was important in popularising backpropagation, it was not the first to suggest the approach.[14] Reverse-mode automatic differentiation, of which backpropagation is a special case, was proposed by Seppo Linnainmaa in 1970, and Paul Werbos proposed to use it to train neural networks in 1974.[14]
In October and November 2017 respectively, Hinton published two open access research papers on the theme of capsule neural networks,[57][58] which according to Hinton, are "finally something that works well".[59]
At the 2022 Conference on Neural Information Processing Systems (NeurIPS) he introduced a new learning algorithm for neural networks that he calls the "Forward-Forward" algorithm. The idea of the new algorithm is to replace the traditional forward-backward passes of backpropagation with two forward passes, one with positive (i.e. real) data and the other with negative data that could be generated solely by the network.[60][61]
In May 2023, Hinton publicly announced his resignation from Google. He explained his decision by saying that he wanted to "freely speak out about the risks of A.I." and added that a part of him now regrets his life's work.[9][31]
Geoffrey E. Hinton is internationally known for his work on artificial neural nets, especially how they can be designed to learn without the aid of a human teacher. He has compared effects of brain damage with effects of losses in such a net, and found striking similarities with human impairment, such as for recognition of names and losses of categorisation. His work includes studies of mental imagery, and inventing puzzles for testing originality and creative intelligence. It is conceptual, mathematically sophisticated, and experimental. He brings these skills together with striking effect to produce important work of great interest.[67]
He won the BBVA Foundation Frontiers of Knowledge Award (2016) in the Information and Communication Technologies category, "for his pioneering and highly influential work" to endow machines with the ability to learn.[74]
Together with Yann LeCun, and Yoshua Bengio, Hinton won the 2018 Turing Award for conceptual and engineering breakthroughs that have made deep neural networks a critical component of computing.[75][76][77]
In 2024, he was jointly awarded the Nobel Prize in Physics with John Hopfield "for foundational discoveries and inventions that enable machine learning with artificial neural networks." His development of the Boltzmann machine was explicitly mentioned in the citation.[29][83] When the New York Times reporter Cade Metz asked Hinton to explain in simpler terms how the Boltzmann machine could "pretrain" backpropagation networks, Hinton quipped that Richard Feynman reportedly said: "Listen, buddy, if I could explain it in a couple of minutes, it wouldn't be worth the Nobel Prize."[84]
In 2023, Hinton expressed concerns about the rapid progress of AI.[32][31] Hinton previously believed that artificial general intelligence (AGI) was "30 to 50 years or even longer away."[31] However, in a March 2023 interview with CBS, he stated that "general-purpose AI" may be fewer than 20 years away and could bring about changes "comparable in scale with the industrial revolution or electricity."[32]
In an interview with The New York Times published on 1 May 2023,[31] Hinton announced his resignation from Google so he could "talk about the dangers of AI without considering how this impacts Google."[85] He noted that "a part of him now regrets his life's work".[31][10]
In early May 2023, Hinton claimed in an interview with BBC that AI might soon surpass the information capacity of the human brain. He described some of the risks posed by these chatbots as "quite scary". Hinton explained that chatbots have the ability to learn independently and share knowledge. This means that whenever one copy acquires new information, it is automatically disseminated to the entire group. This allows AI chatbots to have the capability to accumulate knowledge far beyond the capacity of any individual.[86]
Existential risk from AGI
Hinton has expressed concerns about the possibility of an AI takeover, stating that "it's not inconceivable" that AI could "wipe out humanity".[32] Hinton states that AI systems capable of intelligent agency will be useful for military or economic purposes.[87] He worries that generally intelligent AI systems could "create sub-goals" that are unaligned with their programmers' interests.[88] He states that AI systems may become power-seeking or prevent themselves from being shut off, not because programmers intended them to, but because those sub-goals are useful for achieving later goals.[86] In particular, Hinton says "we have to think hard about how to control" AI systems capable of self-improvement.[89]
Catastrophic misuse
Hinton reports concerns about deliberate misuse of AI by malicious actors, stating that "it is hard to see how you can prevent the bad actors from using [AI] for bad things."[31] In 2017, Hinton called for an international ban on lethal autonomous weapons.[90]
Economic impacts
Hinton was previously optimistic about the economic effects of AI, noting in 2018 that: "The phrase 'artificial general intelligence' carries with it the implication that this sort of single robot is suddenly going to be smarter than you. I don't think it's going to be that. I think more and more of the routine things we do are going to be replaced by AI systems."[91] Hinton also previously argued that AGI won't make humans redundant: "[AI in the future is] going to know a lot about what you're probably going to want to do... But it's not going to replace you."[91]
In 2023, however, Hinton became "worried that AI technologies will in time upend the job market" and take away more than just "drudge work."[31] He again stated in 2024 that the British government will have to establish a universal basic income to deal with the impact of AI on inequality.[92] In Hinton's view, AI will boost productivity and generate more wealth. But unless the government intervenes, it will only make the rich richer and hurt the people who might lose their jobs. "That's going to be very bad for society," he said.[93]
Politics
Hinton moved from the U.S. to Canada in part due to disillusionment with Ronald Reagan-era politics and disapproval of military funding of artificial intelligence.[39]
In August 2024, Hinton co-authored a letter with Yoshua Bengio, Stuart Russell, and Lawrence Lessig in support of SB 1047, a California AI safety bill that would require companies training models which cost more than $100 million to perform risk assessments before deployment. They claimed the legislation was the "bare minimum for effective regulation of this technology."[94][95]
Hinton is the great-great-grandson of the mathematician and educator Mary Everest Boole and her husband, the logician George Boole.[98] George Boole's work eventually became one of the foundations of modern computer science. Another great-great-grandfather of his was the surgeon and author James Hinton,[99] who was the father of the mathematician Charles Howard Hinton.
^ abZemel, Richard Stanley (1994). A minimum description length framework for unsupervised learning (PhD thesis). University of Toronto. OCLC222081343. ProQuest304161918.
^ abFrey, Brendan John (1998). Bayesian networks for pattern classification, data compression, and channel coding (PhD thesis). University of Toronto. OCLC46557340. ProQuest304396112.
^ abNeal, Radford (1995). Bayesian learning for neural networks (PhD thesis). University of Toronto. OCLC46499792. ProQuest304260778.
^Krizhevsky, Alex; Sutskever, Ilya; Hinton, Geoffrey E. (3 December 2012). "ImageNet classification with deep convolutional neural networks". In F. Pereira; C. J. C. Burges; L. Bottou; K. Q. Weinberger (eds.). NIPS'12: Proceedings of the 25th International Conference on Neural Information Processing Systems. Vol. 1. Curran Associates. pp. 1097–1105. Archived from the original on 20 December 2019. Retrieved 13 March 2018.
^Hinton, Geoffrey E. (6 January 2020). "Curriculum Vitae"(PDF). University of Toronto: Department of Computer Science. Archived(PDF) from the original on 23 July 2020. Retrieved 30 November 2016.
Rothman, Joshua, "Metamorphosis: The godfather of A.I. thinks it's actually intelligent – and that scares him", The New Yorker, 20 November 2023, pp. 29–39.
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