A dynamic network is a network that changes with time. Nature, society, and the modern communications landscape abound with examples. Molecular interactions, chemical reactions, social relationships and interactions in human and animal populations, transportation networks, mobile wireless devices, and robot collectives form only a small subset of the systems whose dynamics can be naturally modeled and analyzed by some sort of dynamic network. Though many of these systems have always existed, it was not until recently the need for a formal treatment that would consider time as an integral part of the network has been identified. Computer science is leading this major shift, mainly driven by the advent of low-cost wireless communication devices and the development of efficient wireless communication protocols. The early years of computing could be characterized as the era of staticity and of the relatively predictable; centralized algorithms for (combinatorial optimization) problems concerning static instances, as is that of finding a minimum cost traveling salesman tour in a complete weighted graph, computability questions in cellular automata, and protocols for distributed tasks in a static network. Even when changes were considered, as is the case in fault-tolerant distributed computing, the dynamics were usually sufficiently slow to be handled by conservative approaches, in principle too weak to be useful for highly dynamic systems. An exception is the area of online algorithms, where the input is not known in advance and is instead revealed to the algorithm during its course. Though the original motivation and context of online algorithms is not related to dynamic networks, the existing techniques and body of knowledge of the former may prove very useful in tackling the high unpredictability inherent in the latter. In contrast, we are rapidly approaching, if not already there, the era of dynamicity and of the highly unpredictable. According to some latest reports, the number of mobile-only Internet users has already exceeded the number of desktop-only Internet users and more than 75% of all digital consumers are now using both desktop and mobile platforms to access the Internet. The Internet of Things, envisioning a vast number of objects and devices equipped with a variety of sensors and being connected to the Internet, and smart cities37 are becoming a reality (an indicative example is the recent £40M investment of the U.K. government on these technologies).

When computer models designed by tech giants Alibaba and Microsoft this month surpassed humans for the first time in a reading-comprehension test, both companies celebrated the success as a historic milestone.

This week, a video surfaced of a Harvard professor, Steven Pinker, which appeared to show him lauding members of a racist movement. The clip, which was pulled from a November event at Harvard put on by Spiked magazine, showed Mr. Pinker referring to "the often highly literate, highly intelligent people who gravitate to the alt-right" and calling them "internet savvy" and "media savvy." The neo-Nazi Daily Stormer website ran an article headlined, in part, "Harvard Jew Professor Admits the Alt-Right Is Right About Everything." A tweet of the video published by the self-described "Right-Wing Rabble-Rouser" Alex Witoslawski got hundreds of retweets, including one from the white-nationalist leader Richard Spencer. "Steven Pinker has long been a darling of the white supremacist'alt-right,'" noted the lefty journalist Ben Norton.

The Justice Department will soon start trying to jam cellphones smuggled into federal prisons and used for criminal activity, part of a broader safety initiative that is also focused on preventing drones from airdropping contraband to inmates. Deputy Attorney General Rod J. Rosenstein told the American Correctional Association's conference in Orlando on Monday that, while the law prohibits cellphone use by federal inmates, the Bureau of Prisons confiscated 5,116 such phones in 2016, and preliminary numbers for 2017 indicate a 28 percent increase. "That is a major safety issue," he said in his speech. "Cellphones are used to run criminal enterprises, facilitate the commission of violent crimes and thwart law enforcement." When he was the U.S. attorney in Maryland, Rosenstein prosecuted an inmate who used a smuggled cellphone to order the murder of a witness.

American authorities have decided that Alibaba's digital payment firm, Ant Financial, won't be allowed to acquire the cash transfer company Moneygram.

It is no doubt that everyone has come in contact with Machine Learning (ML) algorithms, perhaps without knowing that they have or what they are, but they certainly have. For example when you are making a purchase online and some items are'suggested for you,' this is an example of ML, another example is when a dating app tries to'match' you based on previous matches you have selected or when social media platforms, such as Facebook and Instagram, show you certain sponsored content. In all these instances some form an ML algorithm is used, which a powerful tool that many corporations are now adopting to derive more value.

Facebook will soon begin alerting users of photos that feature them, based on facial recognition technology.

The Kepler space telescope, which launched in 2009, has produced more than 30,000 signals measuring light from stars to search for possible planets in distant parts of the galaxy. Sifting through that and other telescope data, astronomers have found more than 3,500 planets, up from 329 known before the Kepler mission. Now artificial intelligence is helping to find even more.

There are few electronic devices with which you cannot order a Domino's pizza. When the craving hits, you can place an order via Twitter, Slack, Facebook Messenger, SMS, your tablet, your smartwatch, your smart TV, and even your app-enabled Ford. This year, the pizza monger added another ordering tool: If your home is one of the 20 million with a voice assistant, you can place a regular order through Alexa or Google Home. Just ask for a large extra-cheese within earshot, and voila--your pizza is in the works.

If you've become fond of Alexa, a new pair of wireless headphones lets you take Amazon's digital assistant with you on the run -- literally. "When (Apple co-founder) Steve Jobs announced the iPod, the pitch was: A thousand songs in your pocket. Now, it's 20 million songs at the sound of your voice," said 66 Audio CEO and founder Kristian Kay. "You can ask Alexa to play you any song from multiple services ... and instantly, without ever touching your phone, you have this unlimited jukebox where you now can listen to any music that you want, on demand." This is just the latest evolution of Alexa-enabled technology.