Category Archives: Computer Science

Balancing athletics and computer science with St John’s student membership – UM Today

February 26, 2024

Balancing academics and athletics can be quite a feat, but Yinka Odeleye, a computer science student, appears to have mastered it as he finishes his first year as a Bison athlete.

Yinkas talents on the track are undeniable, and he was recently invited to join the St Johns student membership by his sister, Enny Odeleye, who is also the Bison track team and SJCSA member.

What made you join the St Johns student membership?

I found St Johns through word of mouth. When I heard about it and the benefits it had, I knew I had to take advantage and not leave this opportunity on the table.

Ive found a place to belong to on campus and a place to go.

As a track athlete who is always on the go, Yinka has found St Johns to be critical in his academic success and meeting new friends.

I met an international student at Jumpstart when I first joined, and we started talking immediately and clicked. It shows that the community here is for everyone, and you can meet students from anywhere on campus.

What parts of the student membership have helped you the most in your studies?

The library has given me a place to study and be productive. Its helped me succeed in midterms, tests, and finals preparation. I always have a spot and know I can get work done there.

Whether it be a quick study session before practice or in the evening after practice, Yinka knows his best place to study is at St Johns. Aside from the library and study carrels, hes also found the convenience of the discounts on food helpful during his study sessions at the Daily Bread Cafe and Soup4U.

The discounts on food I use a lot. The food is affordable, and its a homemade meal that makes you feel full afterwards. Its convenient too because I can get my food from the Daily Bread Cafe, then go up to the library or my study carrel.

The first-year student is preparing for the USports Track and Field nationals in March and concludes his first year of studies, where he looks to continue his academic and track success.

To learn more about the St Johns student membership, visit our website.

Marissa Naylor

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Balancing athletics and computer science with St John's student membership - UM Today

Capturing Creativity with Computation for Music AI – University of California San Diego

We know it when we see it, but what is creativity and can it be quantified? In a paper that could help guide future artificial intelligence (AI) development, a team from UC San Diegos Jacob School of Engineering, Department of Music and Qualcomm Institute (QI) has discovered answers in the context of musical collaboration.

Its a hard problem, because not a lot of people agree on what is creative, said study co-author Vignesh Gokul, a computer science and engineering Ph.D. candidate at UC San Diego. Our main hypothesis was that the musical score or output that is most creative is the one that conveys the most information. The contribution of this paper is a method to calculate this total information flow between a human and an agent (or another human) playing music.

The papers senior author Shlomo Dubnov, who is professor in both UC San Diegos Music Department and Computer Science and Engineering Department as well as a QI affiliate, added, This is a new concept that highlights the importance of communication and collaboration that occurs between musicians or between musicians and musical artificialintelligence agents as a fundamental factor in achieving music creativity.

The paper, Evaluating Co-Creativity Using Total Information Flow, is authored by Gokul, Dubnov and computer science and engineering masters student Chris Francis, who spearheaded experimental infrastructure and operation. The paper is being presented at this weeks Mathemusical Encounters in Singapore : a Diderot Legacy conference.

The project was funded by Project REACH : Raising Co-creativity in Cyber-Human Musicianship, a European Research Council Advanced grant that promotes the study of "shared musicality" at the intersection of the physical, human and digital spheres; it is designed to produce models and tools to better understand and encourage human creativity in a context where it is increasingly intertwined with computation.

In this research, the UC San Diego team decided to evaluate musical co-creativity by using an pre-trained large language neural network model called Multitrack Music Transformer to estimate the amount of interaction between different musical voices in tracks containing a piano melody and its piano accompaniment.

The team derived an equation to effectively compute the information flow between the two signals in this musical interaction system, as a quantitative score. According to the hypothesis, the higher the score, the greater the creativity. If one of the musical voices in a pair ignored or repeated the other, the score would go down because little information would be exchanged. If, however, the voices went back and forth integrating each others musical information with their own, the score would rise.

Next, the team looked for a way to check that this score was a meaningful measure of creativity.

The hardest part was definitely validating this framework, Gokul said. We had come up with the hypothesis; we had come up with a method to compute the score based on the hypothesis. But validating is hard because humans have different subjective preferences.

The team decided to lean into human subjectivity and compare the computed score with five expert musicians evaluations of 84 musical duets, including some that were randomly generated. The results demonstrated that the computational score matched human perception.

Gokul cautioned there is still work to be done. He notes theres a tendency for pre-trained models to prefer their own generations, and the team found that to be the case in this work with the Multitrack Music Transformer model. And, Gokul notes, this is only one step toward a musical system in which humans and AI can interact creatively.

However, the researchers are already planning future applications of the current work, including a collaboration with neuroscience researchers who investigate the cognitive load of listening to music or performing musical tasks.

As Gokul transitions from his Ph.D. studies to a job in the tech sector, he is grateful for all the human creative collaboration he experienced at UC San Diego, including with Dubnov. He has been a fantastic advisor, Gokul said. Hes very knowledgeable in information theory, music, generative AI, and we have published about seven works together. It's been great to receive his guidance on these projects.

Read more about UC San Diegos Qualcomm Institute, Department of Music or Department of Computer Science and Engineering.

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Capturing Creativity with Computation for Music AI - University of California San Diego

DOJ Appoints First Chief Science and Technology Advisor, AI Officer – PYMNTS.com

Attorney General Merrick B. Garland designated Jonathan Mayer as the Department of Justices first chief science and technology advisor and chief artificial intelligence officer.

The appointment underscores the departments commitment to staying ahead of the curve in navigating the ever-evolving landscape of technology, according to a Thursday (Feb. 22) press release.

As the chief science and technology advisor, Mayer will advise the attorney general and collaborate with various departments within the Justice Department on complex technical issues, such as cybersecurity and AI, according to the release.

With a background in computer science and law, Mayer has focused on criminal procedure, national security and consumer protection, the release said. He is an assistant professor at Princeton Universitys Department of Computer Science and School of Public and International Affairs.

Working out of the Office of Legal Policy, Mayer will lead efforts to build the departments technological capacity by recruiting top technical talent and ensuring that the department is well-equipped to tackle the challenges presented by emerging technologies, per the release.

Mayer will also spearhead the development of a team of experts in technology-related areas, including cybersecurity and AI, to advise leadership and coordinate efforts across the department and with federal partners, according to the release.

In addition to his role as chief science and technology advisor, Mayer has also been designated as the chief AI officer, in alignment with the Presidents executive order on the Safe, Secure and Trustworthy Development and Use of Artificial Intelligence, the release said.

In this capacity, Mayer will lead efforts to drive intra-departmental and cross-agency initiatives on AI and related issues, per the release. He will also head the newly established Emerging Technology Board, which oversees and governs the use of AI and other emerging technologies within the Justice Department.

President Joe Biden signed the executive order on AI in October, establishing an early set of guidelines and regulations for AI use that may be further strengthened through legislative actions and international agreements.

In his remarks before signing the order, Biden said: AI is all around us. To realize the promise of AI and avoid the risk, we need to govern this technology.

For all PYMNTS AI coverage, subscribe to the daily AI Newsletter.

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DOJ Appoints First Chief Science and Technology Advisor, AI Officer - PYMNTS.com

Thirty-five outstanding MIT students selected as Burchard Scholars for 2024 – MIT News

MITs School of Humanities, Arts, and Social Sciences (SHASS) has announced that 35 MIT undergraduate sophomores and juniors have been named Burchard Scholars for 2024.

Elected by the Burchard Committee from a large pool of impressive applicants, all students chosen for the program have demonstrated excellence and engagement in the humanistic fields, but can major in science, design, and engineering fields as well as the humanities, arts, and social sciences.

In the course of this calendar year, the Burchard Scholars will attend seminar dinners with members of the SHASS faculty, during which they will have the chance to engage with the faculty and one another. The program is designed to both broaden horizons for promising students and provide scholars the chance to engage in friendly but challenging discussions in which to hone skills for expressing, critiquing, and debating ideas with peers and mentors.

During the course of the calendar year, the scholars also attend several cultural events in the Boston metropolitan area.

The key features of these dinners are presentations by SHASS faculty, on topics ranging from nuclear security to an economic view of artificial intelligence to cross-cultural histories in centuries-old manuscripts. Drawing on the schools vast and varied fields of expertise, the seminars offer near-endless avenues of exploration for ambitious scholars.

It is perhaps no surprise that a high percentage of the MIT students who receive Rhodes, Marshall, and other major scholarships and fellowships are former Burchard Scholars. These students are an extraordinary group of MIT undergraduates," says Margery Resnick, associate professor of literature and director of the Burchard program. They are thoughtful, smart, and enthusiastic about the opportunity to discuss a wide range of ideas with faculty and fellow students.

The 2024 Burchard Scholars, their academic years, and majors are:

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Thirty-five outstanding MIT students selected as Burchard Scholars for 2024 - MIT News

Teacher Shortage Solutions for Computer Science and CTE – eSchool News

The lack of computer science technology educators in middle schools continues to be a genuine crisis, especially considering the critical role of STEM education in preparing students for future careers. Traditional hiring practices often result in non-specialist educators teaching computer science, leading to challenges in delivering effective instruction.

Graham Celine, VP of Business Development & Marketing for Intelitek, which offers the online platform CoderZ, emphasized this topic last month at FETC and in this conversation with eSchool. CoderZ aims to address this gap by providing comprehensive tools and resources for both students and educators, enabling structured and engaging computer science education.

With increasing recognition of computer science as a fundamental skill, particularly evidenced by state standards mandating its inclusion in curricula, CoderZ offers a solution aligned with educational goals and industry demands. Graham says the programs flexible implementation options cater to various educational settings, from individual subscriptions to district-wide adoption. Moreover, he points to the products assessment strategies focused on student outcomes, employing a combination of automated evaluations and teacher-led assessments to ensure comprehensive learning assessment. Have a listen:

Key Takeaways:

Below is a machine-generated transcript of the interview:

00:00:20 Speaker 1

Because nobody goes to learn how to be a computer science teacher and then goes to to, to, to elementary schools. If youre a computer science educator, you go teach in high school or university.

00:00:33 Speaker 1

So what lands up happening is we take.

00:00:35 Speaker 1

The math teacher.

00:00:36 Speaker 1

Or the science teacher or the librarian. We say. Hey, teach computer science.

00:00:41 Speaker 2

Right.

00:00:41 Speaker 1

And that doesnt always work because theyre afraid of technology. Theyre afraid of teaching something that they dont know. And So what weve done at Codez is weve created an environment which not only is engaging for the students, and its not only accessible to the students because being online, they can take it anywhere they want from home, in the class, in the library.

00:01:02 Speaker 1

On their phone, on their computer, on their iPad.

00:01:06 Speaker 1

But its got all the tools and capabilities that enable the uh, the educators, the instructors to uh, implement those type of programs. So weve got professional development, weve got teacher guides, weve got pacing guides, weve got slides, weve got background material, all that the teachers need in order to prepare.

00:01:27 Speaker 1

Properly and to be able to deliver there and to build environments like peer teaching environments where the the strongest students will help the weakest students and to keep the the, the the teacher doesnt have to be involved.

00:01:39 Speaker 1

But then why is computer science? Its then becoming important because its becoming a mandate. Its in some states. Its this, its a its recognized as a as a language. In some states, its becoming a standard, notably Texas and and and and New Jersey. Sorry, New York have got.

00:01:59 Speaker 1

State standards and theyre requiring schools to teach computer science and digital literacy as part of their program in the 242025 school year. So from an administrative perspective, this is important.

00:02:15 Speaker 1

And so having a program that is not just some software that you can download off the Internet and let your students play around with and say, OK, we taught them a little bit about coding, having a a program that is structured that allows you to teach computer science in a very structured.

00:02:36 Speaker 1

Logical way that aligns with the goals of these CSA NGSS taxes. New York and other standards is really important. Thats where code Z fits.

00:02:48 Speaker 1

In so weve created an education tool that really fits what the market needs.

00:02:49 Speaker 2

OK.

00:02:55 Speaker 2

Now let me ask this the the implementation. This is is sort of a a district wide implementation or is this something that say can start from the a bottoms up sort of adoption in schools? I mean how does that happen both?

00:03:07 Speaker 1

It it it, it can be both. Uh, you know, in the end we we we have users that are individuals, parents who just want their kids to learn more and so they can sign up on our website.

00:03:19 Speaker 1

And and get a subscription we have a.

00:03:21 Speaker 1

Lot of clubs.

00:03:22 Speaker 1

So a lot of those computer science and robotics clubs are now taking it to the next level. We have many thousands of schools around the the the country and around the world, and we have districts from our perspective, obviously the best way to implement this is from the top down.

00:03:40 Speaker 1

Because the teachers get the most support.

00:03:43 Speaker 1

That way they get the the.

00:03:44 Speaker 1

The the right tools, the most support and the results.

00:03:48 Speaker 1

Visible in the end, thats what the administrators want to see. So we put this new program in how many students registered for the program, how many students completed the program? How many hours were taken of the program, what were the outcomes of the program? And thats a top down approach. But from our perspective.

00:04:08 Speaker 1

We deal with it in all different directions.

00:04:11 Speaker 2

Ill talk about the the assessment aspects of it when you, when you talk about collecting that sort of data, are you talking about collecting it on the uses of the of the, the faculty themselves or do you mean from as a professional development tool, but also as a student? So kind of give us the the assessment?

00:04:28 Speaker 1

Is on a student level.

00:04:29 Speaker 2

OK.

00:04:30 Speaker 1

Obviously the the the.

00:04:31 Speaker 1

The we have all.

00:04:32 Speaker 1

The professional development and all the tools for the student, for the teachers. But were not testing the teachers.

00:04:37

What were.

00:04:38 Speaker 1

Were analyzing is.

00:04:39 Speaker 1

The students, and theres two ways to do that. Theres.

00:04:43 Speaker 1

Theres uh, automatic or passive evaluations. So we look at how many hours did they complete missions. Now if if theres a mission and its all gamified, so theyre making this robot move around the the, the, the, the screen. But it says you got to do this five times using a loop.

00:05:02 Speaker 1

Well, we can evaluate that automatically. Did the student use a loop in their program?

00:05:07 Speaker 1

If yes, we know that theyve learned how.

00:05:10 Speaker 1

To use loops.

00:05:11 Speaker 1

There are other factors that are more subjective and so there we give this the teacher the the task and we say, OK, you have to grade this exercise. The student was supposed to show that they can document correctly. Did the student.

00:05:28 Speaker 1

Document this.

00:05:29 Speaker 1

Well, now the teacher can open up the students workbook, see what they did, and give them a grade. They did it well. They did it medium. They didnt do it at all. And so by taking those together, plus adding in just basic assessments, what you know, type of test, the traditional test capabilities, quizzes.

00:05:49 Speaker 1

That that appear along the way throughout the curriculum, we can add that all up and provide.

00:05:54 Speaker 1

A a very.

00:05:55 Speaker 1

Comprehensive view of how the students have have succeeded within the the application now that rolls up.

00:06:03 Speaker 1

A teacher sees their classroom or their multiple classrooms. A principal will see all the classes in the school and administrator would see all the schools in a district.

00:06:15 Speaker 2

Gotcha. Talk a little bit about the day-to-day use. Is this something that is a is a supplement that is done after school? Is it in school kind of give us kind of a a day-to-day kind of use of the tool both I guess?

00:06:31 Speaker 1

All of the above. Yeah, its it it.

00:06:33 Speaker 1

Link:

Teacher Shortage Solutions for Computer Science and CTE - eSchool News

Belding, Portland high schools receive AP Computer Science awards – Greenville Daily News

Two Ionia County schools were among 33 Michigan schools recognized for their AP Computer Science Principles courses, Belding High School and Portland High School.

The MiSTEM Network highlighted multiple Michigan schools receiving the College Boards AP Computer Science Female Diversity awards in a recent press release.

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Belding, Portland high schools receive AP Computer Science awards - Greenville Daily News

Method identified to double computer processing speeds | UCR News | UC Riverside – UC Riverside

Hung-Wei Tseng

Imagine doubling the processing power of your smartphone, tablet, personal computer, or server using the existing hardware already in these devices.

Hung-Wei Tseng, a UC Riverside associate professor of electrical and computer engineering, has laid out a paradigm shift in computer architecture to do just that in a recent paper titled, Simultaneous and Heterogeneous Multithreading.

Tseng explained that todays computer devices increasingly have graphics processing units (GPUs), hardware accelerators for artificial intelligence (AI) and machine learning (ML), or digital signal processing units as essential components. These components process information separately, moving information from one processing unit to the next, which in effect creates a bottleneck.

In their paper, Tseng and UCR computer science graduate student Kuan-Chieh Hsu introduce what they call simultaneous and heterogeneous multithreading or SHMT. They describe their development of a proposed SHMT framework on an embedded system platform that simultaneously uses a multi-core ARM processor, an NVIDIA GPU, and a Tensor Processing Unit hardware accelerator.

The system achieved a 1.96 times speedup and a 51% reduction in energy consumption.

You dont have to add new processors because you already have them, Tseng said.

The implications are huge.

Simultaneous use of existing processing components could reduce computer hardware costs while also reducing carbon emissions from the energy produced to keep servers running in warehouse-size data processing centers. It also could reduce the need for scarce freshwater used to keep servers cool.

Tsengs paper, however, cautions that further investigation is needed to answer several questions about system implementation, hardware support, code optimization, and what kind of applications stand to benefit the most, among other issues.

The paper was presented at the 56th Annual IEEE/ACM International Symposium on Microarchitecture held in October in Toronto, Canada. The paper garnered recognition from Tsengs professional peers in the Institute of Electrical and Electronics Engineers, or IEEE, who selected it as one of 12 papers included in the groups Top Picks from the Computer Architecture Conferences issue to be published this coming summer.

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Method identified to double computer processing speeds | UCR News | UC Riverside - UC Riverside

Programmers and paleontologists alike to compete at ninth annual RowdyHacks – The University of Texas at San Antonio

We wanted to make something fun and silly. We like RowdyHacks to be a fun and chillax event, while also still supporting the community, Zuniga added. While we were brainstorming, I thought dinosaurs would be really cool.

Perhaps its fortunate the team wasnt inspired by a different Spielberg film about dinosaurs.

Hackers will have the opportunity to attend workshops and engage with mentors who have professional experience across a variety of computer science fields. These sessions will help students gain experience and expand their skillsets. Those trying to land jobs or internships will find that RowdyHacks provides invaluable networking and recruiting opportunities for students and recruiters, says RowdyHacks Director Meira (Mei) Sullum, a junior computer science major.

Its a really great way to get your foot in the door to directly talk to a recruiter, she said. Just showing up at an event like this is showing recruiters that youre putting in that extra effort, so it helps you stand out. Usually, recruiters end up reaching out afterwards at hackathons. Its a very good way to find companies and internships.

As part of its 10-year strategic plan, UTSA aims for 75% of its undergraduate students to participate in some type of experiential learning by the time they graduate.

Besides the experiential learning and professional development opportunities at the event, one of the key draws of RowdyHacks is that its fun. As logistics lead, ensuring that RowdyHacks is indeed a good time is one of Murrays primary responsibilities.

Theres two sides to hackathons: Theres doing the actual project and then theres also that hackathon experience, which is going there, learning, being there for the vibes. Its going to be a good time, he said. I really like it when I see people showing up and realizing we have Pad Thai from local restaurants or plenty of snacks. Having that experience and having people see the fruit of all the work that weve been doing is super rewarding. I cant wait to see it this weekend.

This years event will be the second RowdyHacks held at San Pedro I. Organizers are hoping to build upon last years successes and utilize the space to its full potential.

This year were really trying to perfect that formula and put on the best event we can for 500 hackers, Murray said.

However, in a bid to prioritize quality over size, the organizers for this years event decided to limit participation to roughly 500 students, approximately what it was last year.

Of course, 500 students from Texas and beyond is by no means a small event, nor does limiting the number of registrants imply that the event wont expand in the future, Zuniga notes.

RowdyHacks is the biggest hackathon in San Antonio, he said. When people from other universities think of RowdyHacks, they think of San Antonio; when they think of San Antonio, they think of RowdyHacks. Although were big right now, were only looking to grow.

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Programmers and paleontologists alike to compete at ninth annual RowdyHacks - The University of Texas at San Antonio

‘The Worlds I See’ by AI visionary Fei-Fei Li ’99 selected as Princeton Pre-read – Princeton University

Trailblazing computer scientist Fei-Fei Lis memoir The Worlds I See: Curiosity, Exploration, and Discovery at the Dawn of AI has been selected as the next Princeton Pre-read.

The book, which connects Lis personal story as a young immigrant and scientist with the origin stories of artificial intelligence and human-centered AI, was named to technology book lists for 2023 by the Financial Times and former President Barack Obama.

President Christopher L. Eisgruber, who began the Pre-read tradition in 2013, said he hopes Lis story will inspire incoming first-year students. After reading the book over the summer, members of the Class of 2028 will discuss the The Worlds I See with Li and Eisgruber at the Pre-read Assembly during Orientation.

Wherever your interests lie in the humanities, the social sciences, the natural sciences, or engineering, I hope that Professor Lis example will inspire and encourage you as you explore the joys of learning at Princeton, a place that Professor Li calls a paradise for the intellect, Eisgruber said in a forward written for the Pre-read edition of the book.

Li is the inaugural Sequoia Capital Professor in Computer Science at Stanford University and co-director of Stanfords Human-Centered Artificial Intelligence Institute. Last year, she was named to the TIME100 list of the most influential people in AI.

She graduated from Princeton in 1999 with a degree in physics and will be honored with the Universitys Woodrow Wilson Award during Alumni Day on Feb. 24.

Li has spent two decades at the forefront of research related to artificial intelligence, machine learning, deep learning and computer vision.

While on the faculty at Princeton in 2009, she began the project that became ImageNet, an online database that was instrumental in the development of computer vision.Princeton computer scientists Jia Deng, Kai Li andOlga Russakovsky are also members of the ImageNet senior research team.

In 2017, Fei-Fei Liand Russakovskyco-founded AI4All, which supports educational programs designed to introduce high school students with diverse perspectives, voices and experiences to the field of AI to unlock its potential to benefit humanity.

Li is an elected member of the National Academy of Engineering, the National Academy of Medicine, and the American Academy of Arts and Sciences.

Courtesy of Macmillan Publishers

The Worlds I See shares her firsthand account of how AI has already revolutionized our world and what it means for our future. Li writes about her work with national and local policymakers to ensure the responsible use of technology. She has testified on the issue before U.S. Senate and Congressional committees.

Professor Li beautifully illuminates the persistence that science demands, the disappointments and detours that are inevitable parts of research, and the discoveries, both large and small, that sustain her energy, Eisgruber said.

Li also shares deeply personal stories in her memoir, from moving to the U.S. from China at age 15 to flourishing as an undergraduate at Princeton while also helping run her familys dry-cleaning business.

Professor Lis book weaves together multiple narratives, Eisgruber said. One of them is about her life as a Chinese immigrant in America. She writes poignantly about the challenges that she and her family faced, the opportunities they treasured, and her search for a sense of belonging in environments that sometimes made her feel like an outsider.

During a talk on campus last November, Li said she sees a deep cosmic connection between her experiences as an immigrant and a scientist.

They share one very interesting characteristic, which is the uncertainty, Li said during the Princeton University Public Lecture. When you are an immigrant, or you are at the beginning of your young adult life, there is so much unknown. ... You have to explore and you have to really find your way. It is very similar to becoming a scientist.

Li said she became a scientist to find answers to the unknown, and in The Worlds I See she describes her quest for a North Star in science and life.

In the Pre-read forward, Eisgruber encouraged students to think about their own North Stars and what may guide them through their Princeton journeys.

Copies of The Worlds I See, published by Macmillan Publishers, will be sent this summer to students enrolled in the Class of 2028. (Information on admission dates and deadlines for the Class of 2028 is available on the Admission website).

More information about the Pre-read tradition for first-year students can be found on the Pre-read website. A list of previous Pre-read books follows.

2013 The Honor Code: How Moral Revolutions Happen by Kwame Anthony Appiah

2014 Meaning in Life and Why It Matters by Susan Wolf

2015 Whistling Vivaldi: How Stereotypes Affect Us and What We Can Do by Claude Steele

2016 Our Declaration: A Reading of the Declaration of Independence in Defense of Equality by Danielle Allen

2017 What Is Populism? by Jan-Werner Mller

2018 Speak Freely: Why Universities Must Defend Free Speech by Keith Whittington

2019 Stand Out of Our Light: Freedom and Resistance in the Attention Economy by James Williams

2020 This America by Jill Lepore

2021 Moving Up Without Losing Your Way by Jennifer Morton

2022 Every Day the River Changes by Jordan Salama

2023 How to Stand Up to a Dictator: The Fight for Our Future by Maria Ressa.

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'The Worlds I See' by AI visionary Fei-Fei Li '99 selected as Princeton Pre-read - Princeton University

Encoding computers of the future – EurekAlert

image:

In an Ising computer (illustrated here with 4 bits), the variables all evolve towards a solution in parallel.

Credit: The Authors doi: 10.1117/1.JOM.4.1.014501.

In our data-driven era, solving complex problems efficiently is crucial. However, traditional computers often struggle with this task when dealing with a large number of interacting variables, leading to inefficiencies such as the von Neumann bottleneck. A new type of collective state computing has emerged to address this issue by mapping these optimization problems onto something called the Ising problem in magnetism.

Here's how it works: Imagine representing a problem as a graph, where nodes are connected by edges. Each node has two states, either +1 or -1, representing the potential solutions. The goal is to find the configuration that minimizes the system's total energy, based on a concept called a Hamiltonian.

To solve the Ising Hamiltonian efficiently, researchers are exploring physical systems that could outperform traditional computers. One promising approach involves using light-based techniques, where information is encoded into properties like polarization state, phase, or amplitude. By leveraging effects like interference and optical feedback, these systems can quickly find the correct solution.

In a study published in theJournal of Optical Microsystems, researchers from the National University of Singapore and the Agency for Science, Technology, and Research looked at using a system of vertical cavity surface-emitting lasers (VCSELs) to solve Ising problems. In this setup, information is encoded in the linear polarization states of the VCSELs, with each state corresponding to a potential solution. The lasers are connected to each other, and the interactions between them encode the problem's structure.

The researchers tested their system on modest 2-, 3-, and 4-bit Ising problems and found promising results. However, they also identified challenges, such as the need for minimal VCSEL lasing anisotropy, which may be difficult to achieve in practice. Nonetheless, overcoming these challenges could lead to an all-optical VCSEL-based computer architecture capable of solving problems that are currently out of reach for traditional computers.

Read the Gold Open Access paper by Loke et al., Linear polarization state encoding for Ising computing with optically injection-locked VCSELs,"Journal of Optical Microsystems4(1), 014501 (2023) DOI10.1117/1.JOM.4.1.014501.

Journal of Optical Microsystems

Linear polarization state encoding for Ising computing with optically injection-locked VCSELs

28-Dec-2023

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.

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Encoding computers of the future - EurekAlert