Tag: Technology

U.S. Government Seeks Skynet As DARPA Announces $2B Artificial Intelligence Challenge

The Defense Advanced Research Projects Agency, DARPA, has announced a $2 Billion Dollar Challenge to companies and universities for the development of the next generation of artificial intelligence computer systems with military applications, akin to the Terminator movie series’ Skynet and the Terminators themselves.

The text of the DARPA’s full announcement appears below. Before reading it, the Sentinel suggests two things to keep in mind:

1. Despite the benign objectives listed in then proposal, DARPA has, not once in 60 years, spent any kind of money on projects whose purpose is to stream line administrative procedures, such as the release suggests “key areas to be explored may include automating critical DoD business processes, such as security clearance vetting in a week or accrediting software systems in one day for operational deployment…” DARPA’s projects are intended to help us get them before they get us. Third generation AI when developed, will be used for that purpose, and $2,000,000,000.00 is intended to see that it can, not to take human delays out of background screening.

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2. As much as our military having Skynet and Terminators might strike fear in a Citizen’s heart, the idea of any other nation developing them first is a terror too vast to contemplate.

If someone is to develop them, and they will be developed, best we do it before some militant dictator or suppressive regime does.  The future of our liberty may depend on it.

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DARPA Announces $2 Billion Campaign to Develop Next Wave of AI Technologies

DARPA’s multi-year strategy seeks contextual reasoning in AI systems to create more trusting, collaborative partnerships between humans and machines

OUTREACH@DARPA.MIL
9/7/2018

Over its 60-year history, DARPA has played a leading role in the creation and advancement of artificial intelligence (AI) technologies that have produced game-changing capabilities for the Department of Defense. Starting in the 1960s, DARPA research shaped the first wave of AI technologies, which focused on handcrafted knowledge, or rule-based systems capable of narrowly defined tasks. While a critical step forward for the field, these systems were fragile and limited. Starting in the 1990s, DARPA helped usher in a second wave of AI machine learning technologies that created statistical pattern recognizers from large amounts of data. The agency’s funding of natural language understanding, problem solving, navigation and perception technologies has led to the creation of self-driving cars, personal assistants, and near-natural prosthetics, in addition to a myriad of critical and valuable military and commercial applications. However, these second wave AI technologies are dependent on large amounts of high quality training data, do not adapt to changing conditions, offer limited performance guarantees, and are unable to provide users with explanations of their results.

To address the limitations of these first and second wave AI technologies, DARPA seeks to explore new theories and applications that could make it possible for machines to adapt to changing situations. DARPA sees this next generation of AI as a third wave of technological advance, one of contextual adaptation. To better define a path forward, DARPA is announcing today a multi-year investment of more than $2 billion in new and existing programs called the “AI Next” campaign. Agency director, Dr. Steven Walker, officially unveiled the large-scale effort during closing remarks today at DARPA’s D60 Symposium taking place Wednesday through Friday at the Gaylord Resort and Convention Center in National Harbor, Maryland.

“With AI Next, we are making multiple research investments aimed at transforming computers from specialized tools to partners in problem-solving,” said Dr. Walker. “Today, machines lack contextual reasoning capabilities, and their training must cover every eventuality, which is not only costly, but ultimately impossible. We want to explore how machines can acquire human-like communication and reasoning capabilities, with the ability to recognize new situations and environments and adapt to them.”

DARPA is currently pursuing more than 20 programs that are exploring ways to advance the state-of-the-art in AI, pushing beyond second-wave machine learning techniques towards contextual reasoning capabilities. In addition, more than 60 active programs are applying AI in some capacity, from agents collaborating to share electromagnetic spectrum bandwidth to detecting and patching cyber vulnerabilities. Over the next 12 months, DARPA plans to issue multiple Broad Agency Announcements for new programs that advance the state of the art in AI.

Under AI Next, key areas to be explored may include automating critical DoD business processes, such as security clearance vetting in a week or accrediting software systems in one day for operational deployment; improving the robustness and reliability of AI systems; enhancing the security and resiliency of machine learning and AI technologies; reducing power, data, and performance inefficiencies; and pioneering the next generation of AI algorithms and applications, such as “explainability” and commonsense reasoning.

In addition to new and existing DARPA research, a key component of the campaign will be DARPA’s Artificial Intelligence Exploration (AIE) program, first announced in July 2018. “In today’s world of fast-paced technological advancement, we must work to expeditiously create and transition projects from idea to practice,” said Dr. Walker.

Accordingly, AIE constitutes a series of high-risk, high payoff projects where researchers will work to establish the feasibility of new AI concepts within 18 months of award. Leveraging streamlined contracting procedures and funding mechanisms will enable these efforts to move from proposal to project kick-off within three months of an opportunity announcement.

http://www.darpa.mil/work-with-us/ai-next-campaign.

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Defending The Earth, A New U.S. Space Force?

U.S. President Donald Trump’s desire to create a Space Force might sound a little out of this world, but the idea of making military use of space is not new.

“We already, in fact, have a kind of Space Force,” says Ilya Somin, a professor of law at George Mason University. “We have military satellites that already exist. They’ve existed for a long time. It’s just that they’re controlled by the Air Force and sometimes by the Navy. So if Trump succeeds in persuading Congress to create a Space Force, all that will happen, at least initially, is that the sort of thing that was previously done by the Air Force will now be done by the Space Force.”

The U.S. military is currently composed of five armed services – the Army, Navy, Air Force, Marine Corps and Coast Guard. President Trump wants the Space Force to become a sixth military service branch focused on space warfare.

Constitutional scholars are debating how such a force would come into existence. Some question whether the U.S. Constitution, the nation’s founding governing document, allows for the establishment of a Space Force.

The Constitution grants Congress the power to “raise and support Armies” and also to “provide and maintain a Navy.”

Originalists, scholars who believe the Constitution should be interpreted as it was understood at the time it was enacted back in 1787, might argue that even the Air Force, which became a separate branch of the U.S. Armed Forces in 1947, should be considered unconstitutional.

Yet originalists could defend a Space Force if it were to be part of the Navy or Army, as the Air Force once was.

“A Space Force, like an Air Force, under modern conditions, is essential to conducting ground operations. It’s just another weapon for ground operations and sometimes naval operations,” Somin says. “The Constitution nowhere limits the kinds of weapons the Army or Navy is allowed to have. So if they’re allowed to have bullets that fly through the air, they can have planes that fly through the air and even spacecraft that fly through space.”

Originalists could also make a case for a completely separate Space Force organizationally because the Constitution gives Congress powers to do what is “necessary and proper” to enable lawmakers to execute their powers.

Agreeing that a Space Force is constitutional might come easily to “living constitutionalists,” scholars who believe that the meaning of the Constitution can change over time to account for modern conditions.

There is, however, one kind of Space Force that both originalists and living constitutionalists might have a problem with – a deep Space Force along the lines of Star Trek’s science fictional Starfleet, which conducts interstellar warfare, exploration and colonization.

“If you’re talking about the Starship Enterprise and it’s light years away from Earth and it’s fighting the Klingons or something in space, that has little or no connection to ground or naval warfare,” says Somin, adding, “I think there is a genuinely strong argument that that kind of deep Space Force would not be permissible under the original meaning of the Constitution.”

But what if aliens in a galaxy far, far away, plan to attack Earth?

“Any such thing, [our ability to use technology for deep space interstellar flight], if it ever happens at all, is many decades away probably, so we have plenty of time to discuss it and debate it, and if we decide this is something we really need, we can do a constitutional amendment,” Somin says. “It’s not like the Klingons or the Romulans are about to attack us tomorrow and we have to immediately authorize Starfleet to defeat them.”

Prison Reform On Uncertain Ground In 2018

One has to wonder if Congressional dysfunction has reached a breaking point.

Imagine legislation that was drafted with the help of presidential son-in-law Jared Kushner and, unsurprisingly, supported by President Trump himself. Imagine that this same bill is supported by such stalwarts of “The Resistance” as the Urban League and the Equal Justice Initiative, and also backed by prominent conservative groups such as FreedomWorks and the Faith and Freedom Coalition. The Koch brothers and Grover Norquist are advocates, and so is liberal commentator Vann Jones. In fact, imagine a bill so bipartisan that it passed even this deeply divided House on a 360–59 vote.

That legislation would be the “FIRST STEP Act,” a prison-reform bill. And, this being Washington in 2018, it is almost certainly not going to become law. Indeed, it looks doubtful that the Senate will even vote on it.

The FIRST STEP Act is hardly radical. It doesn’t reduce inmate sentences or otherwise deal with the intensely punitive approach to justice that has given the United States the world’s largest per capita prison population. Nor does it remedy the ongoing racial issues that continue to infect our criminal-justice system.

Instead, it would make a number of extremely modest humanitarian reforms to the way we treat prisoners. For example, it would make female health products more available in federal prisons and all but end the practice of shackling female inmates during childbirth. It would try to keep inmate families together by expanding visits, phone privileges teleconferencing, and opportunities to transfer to prisons closer to home. It would increase mental-health and substance-abuse treatment for inmates.

It would also provide a modest $250 million over five years for new inmate-education and -rehabilitation programs, and establish incentives (including time credits) for prisoners to participate. Prisons would also be required to conduct “risk assessments” of soon-to-be-released inmates and to tailor programs to meet these inmates’ needs.

Over the long run, most experts believe the legislation would save money. For example, studies have shown that every dollar spent providing needed mental-health and substance-abuse treatment to inmates ultimately saves taxpayers $1.27 to $5.47 in reduced crime and incarceration costs. One should always be skeptical of claims that government spending will save money, but this initiative clearly passes the common-sense test. Similarly, keeping families together is likely to reduce future welfare costs as well as crime. And since nearly all prisoners will eventually be released, programs to reduce recidivism are also likely to prove cost-effective.

So why is such a modest and humane bill almost certain to die?

In part, the FIRST STEP Act is a victim of the infighting and turf protection that helps explain Congress’s 18 percent favorability rating. Senator Chuck Grassley (R., Iowa), who as chairman of the Judiciary Committee has jurisdiction over the bill, favors a much more expansive bill, the Sentencing Reform and Corrections Act, which he is co-sponsoring with Sen. Dick Durbin, the Senate’s No. 2 Democrat. Grassley and Durbin are insisting that the FIRST STEP Act be rolled into their bill. But their legislation, which is indeed worthwhile, is being blocked by Senate majority leader Mitch McConnell because the White House won’t sign off on some provisions. In the meantime, prison reform goes nowhere.

An even more significant roadblock is being provided by Senator Tom Cotton (R., Ark.), who opposes nearly all efforts at criminal-justice reform. Senator Cotton, one of the few Americans who believe we have an underincarceration problem, in his words, has mounted an effective guerrilla campaign to undermine the bill’s support on the right. For example, Cotton is reportedly pushing law-enforcement groups to oppose the bill. His efforts have been drawing fruit. Recently the Federal Law Enforcement Officers Association withdrew its endorsement of the bill after being pressured by Cotton’s office. Republicans, always fearful of being called “soft on crime,” will find it difficult to buck law enforcement.

Complaints about congressional gridlock are often exaggerated. The Founders intended legislating to be slow, deliberate, and challenging. But when even commonsense legislation with broad bipartisan support can’t so much as get a vote, one has to wonder if congressional dysfunction has reached a breaking point.

There is one possible way that this innovative bill could make it through Congress and onto the President’s desk. If determined members of the Senate refuse to vote in the upcoming confirmation of the candidate to fill the current Supreme Court vacancy there may be enough pressure to move the opposition out of the way.  Senators Cotton and McConnell both have vested interest in seeing a smooth confirmation hearing, and stand to lose critical local support in their home states and from the administration if their actions cause unnecessary delays or, worse, derail the confirmation entirely.

It’s a weak foundation  for prison reform advocates to stand on, but uncertain ground is better than having no place to stand at all.

Brighter Future For Us All: High-Fidelity Images of Sun’s Atmosphere Tell The Tale

A Southwest Research Institute-led team discovered never-before-detected, fine-grained structures in the Sun’s outer atmosphere, or corona. The team imaged this critical region in detail using sophisticated software techniques and longer exposures from the COR-2 camera onboard NASA’s Solar and Terrestrial Relations Observatory-A (STEREO-A).

The Sun’s outer corona is the source of the solar wind, the stream of charged particles that flow outward from the Sun in all directions. Measured near Earth, the magnetic fields embedded within the solar wind are intertwined and complex.

“Previous images showed the outer corona as a smooth structure, but in deep space, the solar wind is turbulent and gusty,” said SwRI’s Dr. Craig DeForest, a solar physicist and lead author of “The Highly Structured Outer Corona,” an article published by Astrophysical Journal July 18, 2018.

“Using new techniques to improve image fidelity, we realized that the corona is not smooth, but structured and dynamic. Every structure that we thought we understood turns out to be made of smaller ones and to be more dynamic than we thought.”

To understand the corona, DeForest and his colleagues started with extended exposures of STEREO-A’s coronagraph images – pictures of the Sun’s atmosphere produced by a special telescope that blocks out light from the bright solar disk.

The coronagraph is sensitive enough to image the corona in great detail, but in practice its measurements are polluted by noise both from the space environment and the instrument itself. The team’s key innovation was identifying and separating out that noise, boosting the signal-to-noise ratio and revealing the outer corona in unprecedented detail.

“We couldn’t tinker with the instrument itself, so we took a software approach, squeezing out the highest quality data possible by improving the data’s signal-to-noise ratio,” DeForest said. “We developed new filtering algorithms, designed and tested to delineate the true corona from the noisy measurements.”

The algorithms filtered out light and adjusted brightness. But the most challenging obstacle is inherent: blur due to the motion of the solar wind. “This technique adjusted images not just in space, not just in time, but in a moving coordinate system,” DeForest said.

“That allowed us to correct motion blur not just by the speed of the wind, but by how rapidly features changed in the wind.”

With the resulting unprecedented view of the corona, the team made several groundbreaking discoveries. For example, coronal streamers – magnetic loops that can erupt into coronal mass ejections that send blobs of solar material into space – are far more structured than previously thought.

“What we found is that there is no such thing as a single streamer,” DeForest said. “The streamers themselves are composed of myriad fine strands that, together, average to produce a brighter feature.”

Then there’s the theoretical Alfven surface – a proposed surface, or sheet-like layer where the gradually accelerating solar wind reaches a critical speed. But that’s not what DeForest’s team observed.

“What we found is that there isn’t a clean Alfven surface,” DeForest said. “There’s a wide ‘no-man’s land’ or `Alfven zone’ where the solar wind gradually disconnects from the Sun, rather than a single clear boundary.”

And the close look at the coronal structure also raised new questions. Techniques used to estimate the speed of the solar wind revealed that the wind suddenly changes its character at a distance of around 10 solar radii, well within the conventional boundary of the corona itself.

“Some interesting physics is happening around there,” DeForest said. “We don’t know what it is yet, but we do know that it is going to be interesting.”

These first observations will provide key insight for NASA’s upcoming Parker Solar Probe, the first-ever mission to gather measurements from within the outer solar corona.

Catching Them In The Act: Hyper Fast Camera Captures Atoms In Motion

An extremely fast “electron camera” at the Department of Energy’s SLAC National Accelerator Laboratory has produced the most detailed atomic movie of the decisive point where molecules hit by light can either stay intact or break apart.

The results could lead to a better understanding of how molecules respond to light in processes that are crucial for life, like photosynthesis and vision, or that are potentially harmful, such as DNA damage from ultraviolet light.

In the study, published in Science, researchers looked at a gas whose molecules have five atoms each. They watched in real time how light stretched the bond between two atoms in the molecules to a “point of no return,” sending the molecules on a path that either further separated the atoms and cleaved the bond or caused the atoms to vibrate while preserving the bond.

“The starting and end points of a chemical reaction are often obvious, but it’s much more challenging to take snapshots of the rapid reaction steps in between,” said postdoctoral researcher Jie Yang, the study’s lead author from SLAC’s Accelerator Directorate and the Stanford PULSE Institute.

“The crossroads where a molecule can do one thing or another are an important factor in determining the outcome of a reaction. Now we’ve been able to observe directly for the first time how the atomic nuclei of a molecule rearrange at such an intersection.”

Co-author Todd Martinez, a professor at SLAC and Stanford University and an investigator at PULSE, said, “The system we studied is a paradigm for the much more complex light-driven reactions in nature.” For example, the absorption of ultraviolet light can cause damage to DNA, but other mechanisms turn the light’s energy into molecular vibrations and minimize the harmful effect.

Ultra-High-Speed Snapshots of Atoms in Motion
The first steps in light-driven reactions are extremely fast. Molecules absorb light almost instantaneously, leading to a rapid rearrangement of their electrons and atomic nuclei. To see what happens in real time, researchers need ultra-high-speed cameras that can “freeze” motions occurring within femtoseconds, or millionths of a billionth of a second.

The camera used in the study was an instrument for ultrafast electron diffraction (UED), in which a high-energy beam of electrons probes the interior of a sample, generating snapshots of its atomic architecture at different points in time during a chemical reaction. Strung together, these snapshots turn into a movie of the speedy atomic motions.

At SLAC, the researchers flashed laser light into a gas of trifluoroiodomethane molecules and observed over the course of hundreds of femtoseconds how bonds between carbon and iodine atoms elongated to a point at which the bond either broke, splitting off iodine from the molecules, or contracted, setting off vibrations of the atoms along the bond.

“UED was absolutely crucial to seeing that point during the reaction,” said physicist Xijie Wang, head of SLAC’s UED program and the study’s principal investigator. “Other methods either don’t detect nuclear motions directly or haven’t reached the resolution necessary to make this kind of observation in gases.”

Mapping Energy Landscapes of Chemical Reactions
The observation is in agreement with calculations that provide a deeper understanding of what happens during the reaction.

The laser light “energizes” the molecules, elevating them from a low-energy ground state to a higher-energy excited state (see image below). Molecular states like these can be described by energy landscapes, with mountains of more energy and valleys of less energy. Like a golf ball rolling on a curved putting green, the molecules can follow reaction paths on these surfaces.

When the landscapes of different molecular states intersect, the reaction can proceed in several directions. Chemists call this point a conical intersection.

In fact, molecules at conical intersections exist in several states at once – an oddity rooted in the fact that molecules are tiny quantum systems, said co-author Xiaolei Zhu, a postdoctoral researcher at PULSE and Stanford. “We can predict this behavior in computer simulations,” he said. “Now we’ve also directly seen that the molecules behave exactly that way in the experiment.”

The team is now planning the next steps. “We’re continuing to develop the UED method so that we can look at similar processes in liquids,” Wang said. “This will bring us even closer to understanding light-driven chemical reactions in biological environments.”