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Brave, the privacy-focused browser that automatically blocks unwanted ads and trackers, is rolling out Leo a native AI assistant that the company claims provides unparalleled privacy compared to some other AI chatbot services. Following several months of testing, Leo is now available to use for free by all Brave desktop users running version 1.60 of the web browser. Leo is rolling out in phases over the next few days and will be available on Android and iOS in the coming months.

The core features of Leo arent too dissimilar from other AI chatbots like Bing Chat and Google Bard: it can translate, answer questions, summarize webpages, and generate new content. Brave says the benefits of Leo over those offerings are that it aligns with the companys focus on privacy conversations with the chatbot are not recorded or used to train AI models, and no login information is required to use it. As with other AI chatbots, however, Brave claims Leos outputs should be treated with care for potential inaccuracies or errors.

Brave users can access Leo directly from the browser sidebar, seen here (pictured) on the right of the webpage. Image: Brave

AI can be a powerful tool but it can also present growing concerns for data privacy and theres a need for a privacy-first solution, said Brian Bondy, CTO and co-founder of Brave, in a press release. Brave is committed to pairing AI with user privacy, and will provide our users with secure and personalized AI assistance where they already spend their time online.

Brave says that additional models will be available to Leo Premium users alongside access to higher-quality conversations, priority queuing during peak usage, higher rate limits, and early access to new features. In a statement to The Verge, Brian Bondy, CTO and co-founder of Brave said that Leo is built in a way that many different models can be plugged into the feature. We believe that more models will be offered over time and that users should be able to choose among them.

Update, November 2nd 1.30PM ET: Updated to include a statement from Brave co-founder Brian Bondy regarding future AI models coming to Leo.

See the original post:

Brave responds to Bing and ChatGPT with a new anonymous and ... - The Verge

In the world of Artificial Intelligence (AI), there's a big problem that we should pay attention to, says one of the godfathers of AI. A respected figure in the field, Yoshua Bengio, is concerned about the growing power of a few big companies in AI. He's worried that these companies might have too much control over AI technology. He even thinks it's one of the main problems we face when it comes to AI.

Bengio, who has won a prestigious Turing Award for his work in AI, recently talked to Insider about his concerns. He said, "We are making more and more powerful AI systems, and the big question for democracy is who gets to control these systems? Is there a risk that only a few companies will have all the power?" It's an important question that has been on his mind for years, but recent developments, like the emergence of systems like ChatGPT, have made him even more worried about this issue.

Yann LeCun, another important figure in AI, has raised similar concerns. He suggested that influential tech leaders like Sam Altman from OpenAI are trying to control AI by pushing for stricter rules and regulations. However, Bengio doesn't agree with this idea. He doesn't think these tech leaders are trying to take over the AI industry.

Bengio believes that it's clear we should not let the big companies write the rules for AI. But he disagrees with the notion that these companies are trying to manipulate the rules in their favor. He thinks that the rules and regulations, as they are currently being discussed, won't necessarily benefit the big tech companies.

According to Bengio, the proposed regulations are aimed at making sure the big AI systems built by these large companies are closely watched and regulated. This means that the big companies will face more scrutiny and higher costs. However, smaller players who work on more specialised AI or create applications using the big AI systems won't be under the same strict regulations.

In short, Bengio wants to make sure that the AI rules are fair and not controlled by just a few big companies. He believes that regulations should ensure that the powerful AI systems are monitored closely. This way, everyone can benefit from AI technology without worrying about it being controlled by a select few.

See the rest here:

AI pioneer Yoshua Bengio warns against letting Big Tech control rules - HT Tech

Image Credits: DeepMind

[A version of this piece first appeared in TechCrunchs robotics newsletter, Actuator.Subscribe here.]

Earlier this month, Googles DeepMind team debuted Open X-Embodiment, a database of robotics functionality created in collaboration with 33 research institutes. The researchers involved compared the system to ImageNet, the landmark database founded in 2009 that is now home to more than 14 million images.

Just as ImageNet propelled computer vision research, we believe Open X-Embodiment can do the same to advance robotics, researchers Quan Vuong and Pannag Sanketi noted at the time. Building a dataset of diverse robot demonstrations is the key step to training a generalist model that can control many different types of robots, follow diverse instructions, perform basic reasoning about complex tasks and generalize effectively.

At the time of its announcement, Open X-Embodiment contained 500+ skills and 150,000 tasks gathered from 22 robot embodiments. Not quite ImageNet numbers, but its a good start. DeepMind then trained its RT-1-X model on the data and used it to train robots in other labs, reporting a 50% success rate compared to the in-house methods the teams had developed.

Ive probably repeated this dozens of times in these pages, but it truly is an exciting time for robotic learning. Ive talked to so many teams approaching the problem from different angles with ever-increasing efficacy. The reign of the bespoke robot is far from over, but it certainly feels as though were catching glimpses of a world where the general-purpose robot is a distinct possibility.

Simulation will undoubtedly be a big part of the equation, along with AI (including the generative variety). It still feels like some firms have put the horse before the cart here when it comes to building hardware for general tasks, but a few years down the road, who knows?

Vincent Vanhoucke is someone Ive been trying to pin down for a bit. If I was available, he wasnt. Ships in the night and all that. Thankfully, we were finally able to make it work toward the end of last week.

Vanhoucke is new to the role of Google DeepMinds head of robotics, having stepped into the role back in May. He has, however, been kicking around the company for more than 16 years, most recently serving as a distinguished scientist for Google AI Robotics. All told, he may well be the best possible person to talk to about Googles robotic ambitions and how it got here.

At what point in DeepMinds history did the robotics team develop?

I was originally not on the DeepMind side of the fence. I was part of Google Research. We recently merged with the DeepMind efforts. So, in some sense, my involvement with DeepMind is extremely recent. But there is a longer history of robotics research happening at Google DeepMind. It started from the increasing view that perception technology was becoming really, really good.

A lot of the computer vision, audio processing, and all that stuff was really turning the corner and becoming almost human level. We starting to ask ourselves, Okay, assuming that this continues over the next few years, what are the consequences of that? One of clear consequence was that suddenly having robotics in a real-world environment was going to be a real possibility. Being able to actually evolve and perform tasks in an everyday environment was entirely predicated on having really, really strong perception. I was initially working on general AI and computer vision. I also worked on speech recognition in the past. I saw the writing on the wall and decided to pivot toward using robotics as the next stage of our research.

My understanding is that a lot of the Everyday Robots team ended up on this team. Googles history with robotics dates back significantly farther. Its been 10 yeas since Alphabet made all of those acquisitions [Boston Dynamics, etc.]. It seems like a lot of people from those companies have populated Googles existing robotics team.

Theres a significant fraction of the team that came through those acquisitions. It was before my time I was really involved in computer vision and speech recognition, but we still have a lot of those folks. More and more, we came to the conclusion that the entire robotics problem was subsumed by the general AI problem. Really solving the intelligence part was the key enabler of any meaningful process in real-world robotics. We shifted a lot of our efforts toward solving that perception, understanding and controlling in the context of general AI was going to be the meaty problem to solve.

It seemed like a lot of the work that Everyday Robots was doing touched on general AI or generative AI. Is the work that team was doing being carried over to the DeepMind robotics team?

We had been collaborating with Everyday Robots for, I want to say, seven years already. Even though we were two separate teams, we have very, very deep connections. In fact, one of the things that prompted us to really start looking into robotics at the time was a collaboration that was a bit of a skunkworks project with the Everyday Robots team, where they happened to have a number of robot arms lying around that had been discontinued. They were one generation of arms that had led to a new generation, and they were just lying around, doing nothing.

We decided it would be fun to pick up those arms, put them all in a room and have them practice and learn how to grasp objects. The very notion of learning a grasping problem was not in the zeitgeist at the time. The idea of using machine learning and perception as the way to control robotic grasping was not something that had been explored. When the arms succeeded, we gave them a reward, and when they failed, we give them a thumbs-down.

For the first time, we used machine learning and essentially solved this problem of generalized grasping, using machine learning and AI. That was a lightbulb moment at the time. There really was something new there. That triggered both the investigations with Everyday Robots around focusing on machine learning as a way to control those robots. And also, on the research side, pushing a lot more robotics as an interesting problem to apply all of the deep learning AI techniques that weve been able to work so well into other areas.

Was Everyday Robots absorbed by your team?

A fraction of the team was absorbed by my team. We inherited their robots and still use them. To date, were continuing to develop the technology that they really pioneered and were working on. The entire impetus lives on with a slightly different focus than what was originally envisioned by the team. Were really focusing on the intelligence piece a lot more than the robot building.

You mentioned that the team moved into the Alphabet X offices. Is there something deeper there, as far as cross-team collaboration and sharing resources?

Its a very pragmatic decision. They have good Wi-Fi, good power, lots of space.

I would hope all the Google buildings would have good Wi-Fi.

Youd hope so, right? But it was a very pedestrian decision of us moving in here. I have to say, a lot of the decision was they have a good caf here. Our previous office had not so good food, and people were starting to complain. There is no hidden agenda there. We like working closely with the rest of X. I think theres a lot of synergies there. They have really talented roboticists working on a number of projects. We have collaborations with Intrinsic that we like to nurture. It makes a lot of sense for us to be here, and its a beautiful building.

Theres a bit of overlap with Intrinsic, in terms of what theyre doing with their platform things like no-code robotics and robotics learning. They overlap with general and generative AI.

Its interesting how robotics has evolved from every corner being very bespoke and taking on a very different set of expertise and skills. To a large extent, the journey were on is to try and make general-purpose robotics happen, whether its applied to an industrial setting or more of a home setting. The principles behind it, driven by a very strong AI core, are very similar. Were really pushing the envelope in trying to explore how we can support as broad an application space as possible. Thats new and exciting. Its very greenfield. Theres lots to explore in the space.

I like to ask people how far off they think we are from something we can reasonably call general-purpose robotics.

There is a slight nuance with the definition of general-purpose robotics. Were really focused on general-purpose methods. Some methods can be applied to both industrial or home robots or sidewalk robots, with all of those different embodiments and form factors. Were not predicated on there being a general-purpose embodiment that does everything for you, more than if you have an embodiment that is very bespoke for your problem. Its fine. We can quickly fine-tune it into solving the problem that you have, specifically. So this is a big question: Will general-purpose robots happen? Thats something a lot of people are tossing around hypotheses about, if and when it will happen.

Thus far theres been more success with bespoke robots. I think, to some extent, the technology has not been there to enable more general-purpose robots to happen. Whether thats where the business mode will take us is a very good question. I dont think that question can be answered until we have more confidence in the technology behind it. Thats what were driving right now. Were seeing more signs of life that very general approaches that dont depend on a specific embodiment are plausible. The latest thing weve done is this RTX project. We went around to a number of academic labs I think we have 30 different partners now and asked to look at their task and the data theyve collected. Lets pull that into a common repository of data, and lets train a large model on top of it and see what happens.

What role will generative AI play in robotics?

I think its going to be very central. There was this large language model revolution. Everybody started asking whether we can use a lot of language models for robots, and I think it could have been very superficial. You know, Lets just pick up the fad of the day and figure out what we can do with it, but its turned out to be extremely deep. The reason for that is, if you think about it, language models are not really about language. Theyre about common sense reasoning and understanding of the everyday world. So, if a large language model knows youre looking for a cup of coffee, you can probably find it in a cupboard in a kitchen or on a table.

Putting a coffee cup on a table makes sense. Putting a table on top of a coffee cup is nonsensical. Its simple facts like that you dont really think about, because theyre completely obvious to you. Its always been really hard to communicate that to an embodied system. The knowledge is really, really hard to encode, while those large language models have that knowledge and encode it in a way thats very accessible and we can use. So weve been able to take this common-sense reasoning and apply it to robot planning. Weve been able to apply it to robot interactions, manipulations, human-robot interactions, and having an agent that has this common sense and can reason about things in a simulated environment, alongside with perception is really central to the robotics problem.

Simulation is probably a big part of collecting data for analysis.

Yeah. Its one ingredient to this. The challenge with simulation is that then you need to bridge the simulation-to-reality gap. Simulations are an approximation of reality. It can be very difficult to make very precise and very reflective of reality. The physics of a simulator have to be good. The visual rendering of the reality in that simulation has to be very good. This is actually another area where generative AI is starting to make its mark. You can imagine instead of actually having to run a physics simulator, you just generate using image generation or a generative model of some kind.

Tye Brady recently told me Amazon is using simulation to generate packages.

That makes a lot of sense. And going forward, I think beyond just generating assets, you can imagine generating futures. Imagine what would happen if the robot did an action? And verifying that its actually doing the thing you wanted it to and using that as a way of planning for the future. Its sort of like the robot dreaming, using generative models, as opposed to having to do it in the real world.

More:

Google DeepMinds robotics head on general purpose robots, generative AI and office WiFi - TechCrunch

1 November 2023

Tina, diagnosed with a sarcoma in June 2022, now has scans every three months

Artificial intelligence is nearly twice as good at grading the aggressiveness of a rare form of cancer from scans as the current method, a study suggests.

By recognising details invisible to the naked eye, AI was 82% accurate, compared with 44% for lab analysis.

Researchers from the Royal Marsden Hospital and Institute of Cancer Research say it could improve treatment and benefit thousands every year.

They are also excited by its potential for spotting other cancers early.

AI is already showing huge promise for diagnosing breast cancers and reducing treatment times.

Computers can be fed huge amounts of information and trained to identify the patterns in it to make predictions, solve problems and even learn from their own mistakes.

"We're incredibly excited by the potential of this state-of-the-art technology," said Professor Christina Messiou, consultant radiologist at The Royal Marsden NHS Foundation Trust and professor in imaging for personalised oncology at The Institute of Cancer Research, London.

"It could lead to patients having better outcomes, through faster diagnosis and more effectively personalised treatment."

Tina's sarcoma was at the back of her abdomen

The researchers, writing in Lancet Oncology, used a technique called radiomics to identify signs, invisible to the naked eye, of retroperitoneal sarcoma - which develops in the connective tissue of the back of the abdomen - in scans of 170 patients.

With this data, the AI algorithm was able to grade the aggressiveness of 89 other European and US hospital patients' tumours, from scans, much more accurately than biopsies, in which a small part of the cancerous tissue is analysed under a microscope.

'Quicker diagnosis'

When dental nurse Tina McLaughlan was diagnosed - in June last year, after stomach pain - with a sarcoma at the back of her abdomen, doctors relied on computerised-tomography (CT) scan images to find the problem.

They decided it was too risky to give her a needle biopsy.

The 65-year-old, from Bedfordshire, had the tumour removed and now returns to the Royal Marsden for scans every three months.

She was not part of the AI trial but told BBC News it would help other patients.

"You go in for the first scan and they can't tell you what it is - they didn't tell me through all my treatment, until the histology, post-op, so it would be really useful to know that straight away," Ms McLaughlan said.

"Hopefully, it would lead to a quicker diagnosis."

'Personalised treatment'

About 4,300 people in England are diagnosed with this type of cancer each year.

Prof Messiou hopes the technology can eventually be used around the world, with high-risk patients given specific treatment while those at low risk are spared unnecessary treatments and follow-up scans.

Dr Paul Huang, from the Institute of Cancer Research, London, said: "This kind of technology has the potential to transform the lives of people with sarcoma - enabling personalised treatment plans tailored to the specific biology of their cancer.

"It's great to see such promising findings."

Read more from the original source:

Scientists excited by AI tool that grades severity of rare cancer - BBC.com