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A Letter from the Editor From Artificial Intelligence to Cyborg Intelligence Daniel Zeng, University of Arizona and Chinese Academy of Sciences Zhaohui Wu, Zhejiang University Editor: Daniel Zeng, University of Arizona and Chinese Academy of Sciences, [email protected] O ne of the primary and utilitarian goals of artificial intelligence research is to develop machines with human-like intelligence. Great prog- ress has been made since the start of AI as a field of study. Generations of AI thinking, AI schools of thoughts, and AI engineering have given us e xpert systems, artificial neural networks, outstanding chess-playing programs such as “Deep Blue,” autonomous vehicles such as “Stanley,” and human-level performance question-answering systems such as “Watson.” However, realizing human-like intelligent behavior, such as unguided learning, high-level reasoning and sense-making, and adaptability, still has a long way to go. Biological and Machine Intelligence We’d Like to Hear from You Letters to the Editor: Send letters, including a reference to the article in question, to [email protected]. Letters will be edited for clarity and length. Articles: If you’re interested in submitting an article for publication, see our author guidelines at www.computer.org/ intelligent/author.htm. 2 One dominating research paradigm in AI has been based on the assumption that various aspects of human intelligence can be described and understood well enough to the extent that it can be simulated by computer programs through smart representational frameworks and generic reasoning mechanisms. Despite great progress enabled by this paradigm, its limitations have been well-recognized by the research community. An alternative—or to a large extent, a complementary paradigm (which has almost-as-deep roots and history)—is gaining tremendous momentum lately and has attracted much attention. This perspective is based on the realization that varying kinds and degrees of intelligence reside in humans, animals, and other kinds of biological systems. Mimicking and making use of such biological intelligence at different levels—hardware design and algorithmic principles, among others—in a more direct manner, could greatly influence the design of AI systems, opening fresh pathways and application areas for AI. Biological systems possess all kinds of sensory abilities—vision, hearing, olfactory, haptic, and gustatory senses, to name a few. They also adapt to changes in external environments, and are capable of a range of cognitive functions. AI systems could greatly benefit from biological intelligence, solving problems that are still beyond the capabilities of the state of the art. For instance, image understanding is a relatively easy job for humans, yet it still challenges even the most sophisticated AI algorithms. The reCAPCHA approach, as an example of collective intelligence, has demonstrated the power of integrating biological intelligence and machine intelligence, “helping to digitize old printed material by asking users to decipher scanned words from books that computerized 1541-1672/14/$31.00 © 2014 IEEE Published by the IEEE Computer Society IEEE INTELLIGENT SYSTEMS IEEE optical character recognition failed to recognize.”1 In such approaches, however, the linkage between human intelligence and machine intelligence is loose, in the traditional sense of human-computer interaction. Recent years have seen quantum leaps in research dedicated to this linkage and the enormous potential enabled by deeply connecting and integrating biological and machine intelligence. Cyborg Intelligence Biological beings and computer systems share some common physical foundations. Communication in both biological nervous systems and computer systems, for example, depends on electrical signals. Yet, the gap between these two classes of vastly different systems is obvious. Thanks to new developments in neuroimaging technologies, such as functional magnetic resonance imaging (fMRI), magneto encephalography (MEG), and positron emission tomography (PET), however, the gap is no longer insurmountable. These technologies allow us to observe, in increasing levels of resolution and fidelity, the brain’s inner workings, and reveal the brain’s structure and function. Furthermore, progress in brain-machine interfaces (BMIs) in the last decade has made possible direct communication pathways between the brain and man-made systems at the signal level. These new developments represent significant advances in cyborg intelligence.2 Cyborg intelligence aims to integrate AI with biological intelligence closely and deeply by connecting computer systems and biological systems via BMIs, enhancing strengths and compensating for weaknesses of both systems by combining the biological systems’ perceptive and cognitive a bilities with the computer systems’ computational power. The term cyborg was coined by Manfred C lynes september/october 2014 and Nathan Kline in 1960,3 to describe a being with both organic and synthetic parts. More broadly, cyborgs refer to symbiotic biological-machine systems, consisting of both organic and computing components. Cyborg intelligence is a new research paradigm, aiming to combine the best of both machine and biological intelligence. At the core of cyborg intelligence is the closely-coupled connection of the organic and computing parts. BMIs offer a communication pathway in bridging this gap between the two. Such technology is helping us decode thinking-related signals from the scalp, the dural cortex, and even subcortical areas. It also helps connect the brain directly to the outside world. Neural signals can control machine actuators, and machine-coded sensory information can be delivered into specific areas of the brain. Through bidirectional BMIs, we can connect biological components to machine components at multiple levels, building a hybrid intelligent system of great promises. Recent cyborg intelligence research areas have included the following topics: • Animals as sensors—utilization of animals as sensors; for example, dog’s olfactory sense. • Animals as actuators—using animals as actuators to complete certain actions. • Mind-controlled machines—decoding the human mind to control external devices. • Neurochips—chips designed to connect to neuronal cells; for example, memory chips to replace memory cortex for memory restoration and enhancement. • Intelligent prosthesis—devices replacing a missing or damaged body part using the human nerve system and brain interfacing to increase precision and achieve comfort of movements. www.computer.org/intelligent IEEE Computer Society Publications Office 10662 Los Vaqueros Circle, PO Box 3014 Los Alamitos, CA 90720-1314 Associate Manager, Editorial Services Product Development Brian Kirk [email protected] Editorial Management Tammi Titsworth Publications Coordinator [email protected] Director, Products & Services Evan Butterfield Senior Manager, Editorial Services Robin Baldwin Digital Library Marketing Manager Georgann Carter Senior Business Development Manager Sandra Brown Senior Advertising Coordinator Marian Anderson [email protected] Submissions: For detailed instructions and formatting, see the author guidelines at www.computer.org/intelligent/author. htm or log onto IEEE Intelligent Systems’ author center at Manuscript Central (www.computer.org/mc/intelligent/ author.htm). Visit www.computer.org/ intelligent for editorial guidelines. Editorial: Unless otherwise stated, bylined articles, as well as product and service descriptions, reflect the author’s or firm’s opinion. Inclusion in IEEE Intelligent Systems does not necessarily constitute endorsement by the IEEE or the IEEE Computer Society. All submissions are subject to editing for style, clarity, and length. 3 • Neuromorphics—analog, digital, and mixed-mode analog/digital VLSIs and software systems that implement models of neural systems (such as perception, motor control, and multisensory integration). • Symbiotic cognition—integration of biological cognitive functions with computational models of cognition. At the intellectual level, cyborg in- telligence poses countless interesting and important questions to AI research and could fundamentally change the landscape of AI in several dimensions. This is one emerging area of study that warrants close attention and active participation from AI researchers. 2. W. Zhaohui, G. Pan, and N. Zheng, “Cyborg Intelligence,” IEEE Intelligent Systems, vol. 28, no. 5, 2013, pp. 31–33. 3. M.E. Clynes and N.S. Kline, “Cyborgs and Space,” Astronautics, Sept. 1960, pp. 26–27, 74–76. References Of course, this is just a sample of topics in this field. As we can see, cyborg intelligence holds great promise in many practical applications. stay on the 1. L. von Ahn et al., “ReCAPTCHA: Human-Based Character Recognition via Web Security Measures,” Science, vol. 321, no. 5895, 2008, pp. 1465–1468. Selected CS articles and columns are also available for free at http://ComputingNow.computer.org. Cutting Edge of Artificial Intelligence IEEE Intelligent Systems provides peer-reviewed, cutting-edge articles on the theory and applications of systems that perceive, reason, learn, and act intelligently. www.computer.org/intelligent 4 www.computer.org/intelligent IEEE The #1 AI Magazine IEEE INTELLIGENT SYSTEMS