northwestern
- North America > United States > Illinois > Cook County > Chicago (0.06)
- North America > Canada (0.06)
The Accidental Winners of the War on Higher Ed
Go to a small liberal-arts college if you can. I n the waning heat of last summer, freshly back in my office at a major research university, I found myself considering the higher-education hellscape that had lately descended upon the nation. I'd spent months reporting on the Trump administration's attacks on universities for, speaking with dozens of administrators, faculty, and students about the billions of dollars in cuts to public funding for research and the resulting collapse of " college life ."At Initially, I surveyed the situation from the safe distance of a journalist who happens to also be a career professor and university administrator. I saw myself as an envoy between America's college campuses and its citizens, telling the stories of the people whose lives had been shattered by these transformations. By the summer, though, that safe distance had collapsed back on me.
- North America > United States > Texas (0.05)
- North America > United States > Michigan (0.05)
- North America > United States > Massachusetts (0.05)
- (6 more...)
- Law (1.00)
- Education > Educational Setting > Higher Education (1.00)
- Government > Regional Government > North America Government > United States Government (0.90)
- North America > United States > Illinois > Cook County > Chicago (0.06)
- North America > Canada > British Columbia > Metro Vancouver Regional District > Vancouver (0.06)
A Novel Momentum-Based Deep Learning Techniques for Medical Image Classification and Segmentation
Biswas, Koushik, Pal, Ridal, Patel, Shaswat, Jha, Debesh, Karri, Meghana, Reza, Amit, Durak, Gorkem, Medetalibeyoglu, Alpay, Antalek, Matthew, Velichko, Yury, Ladner, Daniela, Borhani, Amir, Bagci, Ulas
Accurately segmenting different organs from medical images is a critical prerequisite for computer-assisted diagnosis and intervention planning. This study proposes a deep learning-based approach for segmenting various organs from CT and MRI scans and classifying diseases. Our study introduces a novel technique integrating momentum within residual blocks for enhanced training dynamics in medical image analysis. We applied our method in two distinct tasks: segmenting liver, lung, & colon data and classifying abdominal pelvic CT and MRI scans. The proposed approach has shown promising results, outperforming state-of-the-art methods on publicly available benchmarking datasets. For instance, in the lung segmentation dataset, our approach yielded significant enhancements over the TransNetR model, including a 5.72% increase in dice score, a 5.04% improvement in mean Intersection over Union (mIoU), an 8.02% improvement in recall, and a 4.42% improvement in precision. Hence, incorporating momentum led to state-of-the-art performance in both segmentation and classification tasks, representing a significant advancement in the field of medical imaging.
- Research Report > Promising Solution (0.68)
- Instructional Material > Online (0.41)
- Instructional Material > Course Syllabus & Notes (0.41)
Engineering software 2.0 by interpolating neural networks: unifying training, solving, and calibration
Park, Chanwook, Saha, Sourav, Guo, Jiachen, Xie, Xiaoyu, Mojumder, Satyajit, Bessa, Miguel A., Qian, Dong, Chen, Wei, Wagner, Gregory J., Cao, Jian, Liu, Wing Kam
The evolution of artificial intelligence (AI) and neural network theories has revolutionized the way software is programmed, shifting from a hard-coded series of codes to a vast neural network. However, this transition in engineering software has faced challenges such as data scarcity, multi-modality of data, low model accuracy, and slow inference. Here, we propose a new network based on interpolation theories and tensor decomposition, the interpolating neural network (INN). Instead of interpolating training data, a common notion in computer science, INN interpolates interpolation points in the physical space whose coordinates and values are trainable. It can also extrapolate if the interpolation points reside outside of the range of training data and the interpolation functions have a larger support domain. INN features orders of magnitude fewer trainable parameters, faster training, a smaller memory footprint, and higher model accuracy compared to feed-forward neural networks (FFNN) or physics-informed neural networks (PINN). INN is poised to usher in Engineering Software 2.0, a unified neural network that spans various domains of space, time, parameters, and initial/boundary conditions. This has previously been computationally prohibitive due to the exponentially growing number of trainable parameters, easily exceeding the parameter size of ChatGPT, which is over 1 trillion. INN addresses this challenge by leveraging tensor decomposition and tensor product, with adaptable network architecture.
- North America > United States > Illinois > Cook County > Evanston (0.06)
- North America > United States > Texas > Dallas County > Richardson (0.04)
- North America > United States > Rhode Island > Providence County > Providence (0.04)
- Africa > Senegal > Kolda Region > Kolda (0.04)
Self-Healing Distributed Swarm Formation Control Using Image Moments
Liu, C. Lin, Ridgley, Israel L. Donato, Elwin, Matthew L., Rubenstein, Michael, Freeman, Randy A., Lynch, Kevin M.
Abstract--Human-swarm interaction is facilitated by a lowdimensional encoding of the swarm formation, independent of the (possibly large) number of robots. We propose using image moments to encode two-dimensional formations of robots. Each robot knows the desired formation moments, and simultaneously estimates the current moments of the entire swarm while controlling its motion to better achieve the desired group moments. The estimator is a distributed optimization, requiring no centralized processing, and self-healing, meaning that the process is robust to initialization errors, packet drops, and robots being added to or removed from the swarm. In applications such as environmental monitoring and search and rescue, humans may need to control This allows us to take advantage of image moment representations the swarm formation in real time [4].
- Asia > Japan > Honshū > Kantō > Tokyo Metropolis Prefecture > Tokyo (0.04)
- North America > United States > Illinois > Cook County > Evanston (0.04)
- Europe > United Kingdom > England > Cambridgeshire > Cambridge (0.04)
- (3 more...)
Radiology Imaging Follow-up Triggered by AI
From the NEJM Catalyst event AI and Machine Learning for Health Care Delivery, sponsored by Advisory Board, March 24, 2022. In the special artificial intelligence theme issue of NEJM Catalyst Innovations in Care Delivery, "Preventing Delayed and Missed Care by Applying Artificial Intelligence to Trigger Radiology Imaging Follow-up" explores a Northwestern Medicine initiative that uses recurrent neural networks and natural language processing to examine radiology reports for findings necessitating follow-up. Speaking at the NEJM Catalyst "AI and Machine Learning for Health Care Delivery" event, senior author Mozziyar Etemadi, MD, PhD, describes the In Depth article. Most people outside of health care associate radiology with images from X-rays, CT scans, and MRIs. But to doctors who are not radiologists, what comes to mind are large blocks of text from radiology reports, which can be a lot to parse through, Etemadi says.
- Health & Medicine > Nuclear Medicine (1.00)
- Health & Medicine > Diagnostic Medicine > Imaging (1.00)
AI detects autism speech patterns across different languages
A new study led by Northwestern University researchers used machine learning--a branch of artificial intelligence--to identify speech patterns in children with autism that were consistent between English and Cantonese, suggesting that features of speech might be a useful tool for diagnosing the condition. Undertaken with collaborators in Hong Kong, the study yielded insights that could help scientists distinguish between genetic and environmental factors shaping the communication abilities of people with autism, potentially helping them learn more about the origin of the condition and develop new therapies. Children with autism often talk more slowly than typically developing children, and exhibit other differences in pitch, intonation and rhythm. But those differences (called "prosodic differences'" by researchers) have been surprisingly difficult to characterize in a consistent, objective way, and their origins have remained unclear for decades. However, a team of researchers led by Northwestern scientists Molly Losh and Joseph C.Y. Lau, along with Hong Kong-based collaborator Patrick Wong and his team, successfully used supervised machine learning to identify speech differences associated with autism. The data used to train the algorithm were recordings of English- and Cantonese-speaking young people with and without autism telling their own version of the story depicted in a wordless children's picture book called "Frog, Where Are You?" The results were published in the journal PLOS One on June 8, 2022.
- Health & Medicine > Therapeutic Area > Neurology > Autism (1.00)
- Health & Medicine > Therapeutic Area > Genetic Disease (1.00)
When AI takes a human touch: How a team effort to improve patient care in hospitals paid off
The project began with a vexing problem. Imaging tests that turned up unexpected issues -- such as suspicious lung nodules -- were being overlooked by busy caregivers, and patients who needed prompt follow-up weren't getting it. After months of discussion, the leaders of Northwestern Medicine coalesced around a heady solution: Artificial intelligence could be used to identify these cases and quickly ping providers. If only it were that easy. It took three years to embed AI models to flag lung and adrenal nodules into clinical practice, requiring thousands of work hours by employees who spanned the organization -- from radiologists, to human resources specialists, to nurses, primary care doctors, and IT experts. Developing accurate models was the least of their problems.
- Health & Medicine > Health Care Providers & Services (0.66)
- Health & Medicine > Diagnostic Medicine > Imaging (0.37)
Requirements for Open Political Information: Transparency Beyond Open Data
Zhao, Andong Luis Li, Paley, Andrew, Adler, Rachel, Pack, Harper, Servantez, Sergio, Einarsson, Alexander, Barrie, Cameron, Sterbentz, Marko, Hammond, Kristian
A politically informed citizenry is imperative for a welldeveloped democracy. While the US government has pursued policies for open data, these efforts have been insufficient in achieving an open government because only people with technical and domain knowledge can access information in the data. In this work, we conduct user interviews to identify wants and needs among stakeholders. We further use this information to sketch out the foundational requirements for a functional political information technical system.
- North America > United States > Illinois > Cook County > Chicago (0.05)
- North America > United States > New York (0.04)
- Asia > Bangladesh (0.04)
- Questionnaire & Opinion Survey (0.72)
- Research Report (0.64)
- Law (0.95)
- Government > Regional Government > North America Government > United States Government (0.90)
- Government > Voting & Elections (0.71)