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Archive for the ‘information science’ category: Page 73

Jun 24, 2023

Do Your Data Scientists Know the ‘Why’ Behind Their Work?

Posted by in categories: business, information science, robotics/AI

Data science has been around for a long time. But the failure rates of big data projects and AI projects remain disturbingly high. And despite the hype, companies have yet to cite the contributions of data science to their bottom lines.

Why is this the case? In many companies, data scientists are not engaging in enough of softer, but more difficult, work, including gaining a deep understanding of business problems; building the trust of decision makers; explaining results in simple, powerful ways; and working patiently to address concerns among those impacted.

Managers must do four things to get more from their data science programs? First, clarify your business objectives and measure progress toward them. Second, hire data scientists best suited to the problems you face and immerse them in the day-in, day-out work of your organization. Third, demand that data scientists take end-to-end accountability for their work. Finally, insist that data scientists teach others, both inside their departments and across the company.

Jun 18, 2023

Smart drugs fall short as cognitive function enhancers

Posted by in categories: biotech/medical, information science, mathematics, neuroscience

Background

Many everyday tasks can fall under the mathematical class of “hard” problems. Typically, these problems belong to the complexity class of nondeterministic polynomial (NP) hard. These tasks require systematic approaches (algorithms) for optimal outcomes. In the case of significant complex problems (e.g., the number of ways to fix a product or the number of stops to be made on a delivery trip), more computations are required, which rapidly outgrows cognitive capacities.

A recent Science Advances study investigated the effectiveness of three popular smart drugs, namely, modafinil (MOD), methylphenidate (MPH), and dextroamphetamine (DEX), against the difficulty of real-life daily tasks, i.e., the 0–1 knapsack optimization problem (“knapsack task”). A knapsack task is basically a combinatorial optimization task, the class of NP-time challenging problems.

Jun 18, 2023

Qubit Quest Takes a Topological Turn

Posted by in categories: information science, particle physics, quantum physics, robotics/AI

The compelling feature of this new breed of quasiparticle, says Pedram Roushan of Google Quantum AI, is the combination of their accessibility to quantum logic operations and their relative invulnerability to thermal and environmental noise. This combination, he says, was recognized in the very first proposal of topological quantum computing, in 1997 by the Russian-born physicist Alexei Kitaev.

At the time, Kitaev realized that non-Abelian anyons could run any quantum computer algorithm. And now that two separate groups have created the quasi-particles in the wild, each team is eager to develop their own suite of quantum computational tools around these new quasiparticles.

Jun 18, 2023

Machine learning algorithm identifies 3 natural anti-aging chemicals

Posted by in categories: biotech/medical, chemistry, information science, life extension, robotics/AI

Researchers have used a machine learning model to identify three compounds that could combat aging. They say their approach could be an effective way of identifying new drugs, especially for complex diseases.

Cell division is necessary for our body to grow and for tissues to renew themselves. Cellular senescence describes the phenomenon where cells permanently stop dividing but remain in the body, causing tissue damage and aging across body organs and systems.

Ordinarily, senescent cells are cleared from the body by our immune system. But, as we age, our immune system is less effective at clearing out these cells and their number increases. An increase in senescent cells has been associated with diseases such as cancer, Alzheimer’s disease and the hallmarks of aging such as worsening eyesight and reduced mobility. Given the potentially deleterious effects on the body, there has been a push to develop effective senolytics, compounds that clear out senescent cells.

Jun 18, 2023

Cybersecurity in the Era of Generative AI

Posted by in categories: business, cybercrime/malcode, government, information science, robotics/AI

There’s no shortage of emerging applications and projects that promise increased productivity, new levels of automation, and cutting-edge innovation. But all too often, AI initiatives within the enterprise fail to get off the ground, and there can be vast and costly unintended consequences when this technology is applied to the wrong use cases or falls into the wrong hands.

In the case of cyber defense, widespread accessibility to generative AI tools, as well as the increasing sophistication of nation-state actors, means that threats are more personalized and convincing than ever. In an era of algorithms fighting algorithms, human defenders must effectively team up with AI to build cyber resiliency and prevent business disruption.

Presented by expert stakeholders from industry, academia, and government, this event is designed to offer practical guidance for security teams to cut through the noise and unleash the power of AI responsibly and effectively.

Jun 17, 2023

Immune Cells in Aged Women Collect in the Stomach Cavity

Posted by in categories: biotech/medical, information science, sex

The immune system employs different immune cells to target infection and disease throughout the body. Immunologists, who study the immune system, have worked on therapies to get more of these cells to the site of infection and at a faster rate. Currently, it is still unclear how effectively the immune system operates in age-and sex-related research. A group at the University of Birmingham have demonstrated specific sex-related differences associated with the immune system in older female mice. This novel research introduces age and sex into the equation and will change the way we study the immune system and improve patient treatment.

A recent publication in the Journal of Leukocyte Biology, by Dr. Myriam Chimen and colleagues found that age is a significant factor that determines cell movement to the major organs in the stomach cavity. More specifically, immune cells were not going to the site of infection, but “leaking” into the stomach cavity from blood vessels. This study has found a clear difference between sexes associated with immunity, as it was previously believed women’s immune system deteriorates faster compared to men. Chimen and colleagues have confirmed this long-standing belief through their work on immune system sex-related differences.

Chimen and colleagues show that the increased immune cell presence in the stomach cavity is from “leaky” blood vessels. “Leaky” is a term used to described blood vessels that do not maintain strong structural integrity. The idea of “leaky” blood vessels occurs in inflammatory diseases such as cancer. Cancer cells travel through the blood system and commonly “leak” out of the blood stream to other sites in the body. The trafficking of cells to other sites allows the spread of cancer throughout the body, further promoting tumor growth.

Jun 17, 2023

Energy Breakthrough — Machine Learning Unravels Secrets of Argyrodites

Posted by in categories: information science, robotics/AI

Researchers from Duke University and associated partners have uncovered the atomic mechanics that render a group of substances, known as argyrodites, promising prospects for solid-state battery electrolytes and thermoelectric energy converters.

Their findings, made possible through a machine learning.

Machine learning is a subset of artificial intelligence (AI) that deals with the development of algorithms and statistical models that enable computers to learn from data and make predictions or decisions without being explicitly programmed to do so. Machine learning is used to identify patterns in data, classify data into different categories, or make predictions about future events. It can be categorized into three main types of learning: supervised, unsupervised and reinforcement learning.

Jun 16, 2023

Intel Announce ‘Tunnel Falls’ Quantum Research Chip

Posted by in categories: computing, information science, quantum physics

Intel announced the next step on its road to quantum with the release of its latest quantum chip, a 12-qubit, silicon-based chip the company is calling “Tunnel Falls”. No, no, it’s okay, you can keep those greenbacks in your wallet: Intel isn’t in the commercialization phase yet. Instead, Tunnel Falls is meant to be a research test chip: it’s still a stepping stone towards the actual Quantum Processing Units of the future. Hopefully, those will be more like Intel’s own Tunnel Falls than Iran’s Amazon-based “quantum computing” technology.

“Tunnel Falls is Intel’s most advanced silicon spin qubit chip to date and draws upon the company’s decades of transistor design and manufacturing expertise. The release of the new chip is the next step in Intel’s long-term strategy to build a full-stack commercial quantum computing system. While there are still fundamental questions and challenges that must be solved along the path to a fault-tolerant quantum computer, the academic community can now explore this technology and accelerate research development.” says Jim Clarke, Intel’s director of Quantum Hardware.

While it may be underwhelming to know that Tunnel Falls is just a research test chip, it’s also an often overlooked necessity for any new technology. Before any work can be done within the quantum computers of the future, the algorithms, the learning and the how-to have to be started today. One issue with that is the difficulty in producing quantum computing hardware; there’s a reason such a small number of big companies — from Intel to Microsoft, IBM, IonQ, and Google — are actively developing quantum computing hardware.

Jun 15, 2023

Scientists have identified anti-aging drugs using AI technology

Posted by in categories: biotech/medical, chemistry, information science, life extension, robotics/AI

Artificial intelligence (AI) and its latest contribution to the development of anti-aging drugs has paved the way for breakthrough discoveries in modern medicine.

Researchers, using AI technology, have successfully identified three chemicals that specifically target malfunctioning cells, believed to be associated with certain cancers and Alzheimer’s disease.

A group of scientists from the University of Edinburgh developed an AI algorithm to screen a collection of over 4,300 chemical compounds.

Jun 15, 2023

Physicists developed faster algorithm for the simulation motion of microparticles in a plasma flow

Posted by in categories: biotech/medical, computing, information science

Understanding the mechanisms of interaction between plasma and microparticles is of a critical importance in various fields, including astrophysics, microelectronics, and plasma medicine. A common experimental approach for studying interactions between plasma and microparticles is to place microparticles in a flowing plasma of a gas discharge. In order to achieve a more accurate understanding of the processes occurring in such systems, scientists need fast and efficient tools for calculating forces acting on microparticles in a plasma flow.

Typically, -physicists have to independently develop software tailored to a , which is a significant investment of time and resources. Existing open-source programs frequently encounter challenges related to installation, documentation, and sluggish performance. A group of scientists from the JIHT, the HSE and, MIPT have developed a novel solution: a fast, open-source code which is easy to install and extensively documented.

The outcome—OpenDust—performs ten times faster than existing analogues. In order to accelerate calculations, the algorithm uses multiple GPUs simultaneously.

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