Most days, Athena Frederick goes grocery shopping and picks up her grandson from school without ever getting into a car. The same is true of her teenage daughter, who takes herself to and from high school. That's possible because she lives in Peachtree City, Ga., a small town just south of Atlanta that started building a network of paths in 1974 that are accessible to golf carts, but not cars. It now extends more than 100 miles, serving 38,000 residents and their more than 11,000 registered carts. Nearly every destination and domicile in the town is accessible via a class of vehicle most Americans regard as a toy.

When students in suburban Atlanta returned to school for in-person classes amid the pandemic, they were required to mask up, like in many places across the US. Yet in this 95,000-student district, officials took mask compliance a step further than most. Through a network of security cameras, officials harnessed artificial intelligence to identify students whose masks drooped below their noses. "If they say a picture is worth a thousand words, if I send you a piece of video – it's probably worth a million," said Paul Hildreth, the district's emergency operations coordinator. "You really can't deny, 'Oh yeah, that's me, I took my mask off.'"

Nourish Bloom opened in January, introducing a high-tech experience that aims to make grocery shopping as simple as possible. We're all familiar with the traditional way of buying items at a grocery store where you check out with a cashier. The store's owners say it's the world's first Black-owned autonomous grocery store. "No one likes waiting in line, fumbling for their payment," said co-founder Jilea Hemmings. Jilea Hemmings and her husband Jamie opened Nourish Bloom in January, introducing a high-tech experience that aims to make grocery shopping as simple as possible.

Dr. David Touretzky has set out to change that. He's the founder and chair of the AI4K12 initiative, aimed at developing national guidelines for A.I. education and facilitating its instruction to students in kindergarten through 12th grade. "I looked at the national guidelines and there were just two sentences about A.I. and they were for 11th and 12th graders. I realized this was a problem," he said. Touretzky is also a Research Professor at Carnegie Mellon University and lead author of the five core concepts of A.I. education.

Teen scientists use machine learning and neural networks to detect and diagnose diseases, track space debris, design drones and justify conclusions at Intel ISEF 2017. While sentient computer beings like HAL from the classic 2001: A Space Odyssey or Samantha from the 2013 film Her may still be on the distant horizon, some forms of artificial intelligence (AI) are already improving lives. At the 2017 Intel International Science and Engineering Fair (ISEF) – where nearly 1,800 high school students gathered to present original research and compete for more than $4 million in prizes – the next generation of scientists used machine learning and artificial neural networks to find solutions to some of today's most vexing problems. "AI is critical to our future," said Christopher Kang, a budding computer scientist from Richland, Washington, who won an ISEF award in the robotics and intelligent machines category. "Humans have a limit as to how much data we can analyze," he said.

The basic unit of meaning on the Semantic Web is the RDF statement, or triple, which combines a distinct subject, predicate and object to make a definite assertion about the world. A set of triples constitutes a graph, to which they give a collective meaning. It is upon this simple foundation that the rich, complex knowledge structures of the Semantic Web are built. Yet the very expressiveness of RDF, by inviting comparison with real-world knowledge, highlights a fundamental shortcoming, in that RDF is limited to statements of absolute fact, independent of the context in which a statement is asserted. This is in stark contrast with the thoroughly context-sensitive nature of human thought. The model presented here provides a particularly simple means of contextualizing an RDF triple by associating it with related statements in the same graph. This approach, in combination with a notion of graph similarity, is sufficient to select only those statements from an RDF graph which are subjectively most relevant to the context of the requesting process.