nature
The Future of Fertility
In 2016, two Japanese reproductive biologists, Katsuhiko Hayashi and Mitinori Saitou, made an announcement in the journal Nature that read like a science-fiction novel. The researchers had taken skin cells from the tip of a mouse's tail, reprogrammed them into stem cells, and then turned those stem cells into egg cells. The eggs, once fertilized, were transferred to the uteruses of female mice, who gave birth to ten pups; some of the pups went on to have babies of their own. Gametes are the cells, such as eggs and sperm, that are essential for sexual reproduction. With their experiment, Hayashi and Saitou provided the first proof that what's known as in-vitro gametogenesis, or I.V.G.--the production of gametes outside the body, beginning with nonreproductive cells--was possible in mammals.
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Nature's Soundtrack Reveals the Secrets of Degradation
Digital listening is becoming the most powerful new scientific tool for observing and preserving our natural environment. From the Arctic to the Amazon, scientists are covering the globe with networks of digital microphones. Citizen scientists are using open source, DIY devices like the AudioMoth--a handheld device not much larger than a credit card--to listen in on nature's sounds. These devices detect sounds inaudible to humans: from low-frequency infrasounds made by elephants and whales to high-frequency ultrasounds made by mice, bats, and even plants. In 2023, our newfound listening powers will allow us to exponentially accelerate environmental monitoring, measure the health of ecosystems, track the sonic signatures of climate change, reveal the existence of entirely new species, and even rediscover species once thought to be extinct.
Artificial Intelligence Is Pervasive, It Lives In People Who Assume
As an avid reader, you will realize I am not a big proponent of Artificial Intelligence (AI). First, not just because, these days, every line of code is referred to as AI. Or a machine with a few sensors is suddenly called a robot, magically suggesting superior qualities of adaptability. The second major gripe I have with AI is how artificial the definition of intelligence is in AI. For intelligence is knowing what to do in unprecedented scenarios no AI system provides today.
InsultBot: an artificial intelligence-based system for moderating online comments
Live app here, just try to insult it! "The Conversation AI team, a research initiative founded by Jigsaw and Google (both a part of Alphabet) are working on tools to help improve online conversation. One area of focus is the study of negative online behaviors, like toxic comments (i.e. So far they've built a range of publicly available models served through the Perspective API, including toxicity. But the current models still make errors, and they don't allow users to select which types of toxicity they're interested in finding (e.g. "Have you been online lately, it is pretty toxic" Andrew Marantz It is not unknown the limitations from current AI: well-known limitations are called "shallowness", name from "The Shallowness of Google Translate". I have a rich set of discussions on my book "Computational Thinking": feel free to grab and copy and come to me for discussions. Current best AI systems cannot understand human subtlety. They are "shallow": see just the obvious. This is known on translations, and other areas. "You are NOT a whore" -, insult, obscene, toxicity (wrong) Without the negative, it works as wanted. The issue is: we know as human that the negative can even be a compliment! Even though, I would know recommend it! "Mr Pires, what you said is one of the most insanely idiotic things I ever heard.
Lehman
An important goal in artificial intelligence and biology is to uncover general principles that underlie intelligence. While artificial intelligence algorithms need not relate to biology, they might provide a synthetic means to investigate biological intelligence in particular. Importantly, a more complete understanding of such biological intelligence would profoundly impact society.Thus, to explore biological hypotheses some AI researchers take direct inspiration from biology. However, nature's implementations of intelligence may present only one facet of its deeper principles, complicating the search for general hypotheses. This complication motivates the approach in this paper, called radical reimplementation, whereby biological insight can result from purposefully unnatural experiments. The main idea is that biological hypotheses about intelligence can be investigated by reimplementing their main principles intentionally to explicitly and maximally diverge from existing natural examples. If such a reimplementation successfully exhibits properties similar to those seen in biology it may better isolate the underlying hypothesis than an example implemented more directly in nature's spirit. Two examples of applying radical reimplementation are reviewed, yielding potential insights into biological intelligence despite including purposefully unnatural underlying mechanisms. In this way, radical reimplementation provides a principled methodology for intentionally artificial investigations to nonetheless achieve biological relevance.
A Regret Minimization Approach to Multi-Agent Control
Ghai, Udaya, Madhushani, Udari, Leonard, Naomi, Hazan, Elad
We study the problem of multi-agent control of a dynamical system with known dynamics and adversarial disturbances. Our study focuses on optimal control without centralized precomputed policies, but rather with adaptive control policies for the different agents that are only equipped with a stabilizing controller. We give a reduction from any (standard) regret minimizing control method to a distributed algorithm. The reduction guarantees that the resulting distributed algorithm has low regret relative to the optimal precomputed joint policy. Our methodology involves generalizing online convex optimization to a multi-agent setting and applying recent tools from nonstochastic control derived for a single agent. We empirically evaluate our method on a model of an overactuated aircraft. We show that the distributed method is robust to failure and to adversarial perturbations in the dynamics.
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Artificial but Intelligent Mathematicians - Kashmir Reader
The question of whether mathematics is invented or discovered is a longstanding open debate. From the way results are deduced and obtained as corollaries from axioms and theorems, it appears that mathematics is discovered. From what mathematicians choose to study or the names they give to things, it appears that some part of it is created or invented. The binary is not at all clear. A more serious and less-discussed discussion is that of whether machines are capable of doing mathematics the way mathematicians do.
Tiny drone uses A.I. to learn from nature's best pilot, the hummingbird
One of nature's most remarkable creations is the hummingbird, which flaps its wings up to 80 times per second and which can hover in place and fly in any direction. Now scientists have used machine learning algorithms to study the way these birds fly in order to replicate their abilities in drones. The robot, developed by researchers at Purdue University, has artificial intelligence (A.I.) which learns from hummingbird simulations and applies its findings to the movements of its flexible flapping wings. This is useful because of limitations on how small a drone can be made. When drones are shrunk to very small sizes, they cannot generate enough lift to move their weight.
The Nature of AI: A Reply to Schank
In fact, there are enough opinions for four men. That is, the views advanced are contradictory. I agree with one of the A fifth answer is also advanced, but is immediately withdrawn. Roger Schanks, and disagree with the other three. Schank hoped that his article would start a debate on As & hank points out, this is unsatisfactory because it leads the issues he raised.