Results 131 to 140 of about 2,998,558 (396)

Sparse Inverse Problems Over Measures: Equivalence of the Conditional Gradient and Exchange Methods

, 2019
We study an optimization program over nonnegative Borel measures that encourages sparsity in its solution. Efficient solvers for this program are in increasing demand, as it arises when learning from data generated by a `continuum-of-subspaces' model, a ...
Eftekhari, Armin, Thompson, Andrew
core   +1 more source

Integrative analysis of circulating tumor cells (CTCs) and exosomes from small‐cell lung cancer (SCLC) patients: a comprehensive approach

Molecular Oncology, EarlyView.
This study simultaneously investigated circulating tumor cells (CTCs) and exosomes from small‐cell lung cancer (SCLC) patients. The elevated expression of JUNB and CXCR4 in CTCs was a poor prognostic factor for SCLC patients, whereas exosomal overexpression of these biomarkers revealed a high discrimination ability of patients from healthy individuals,
Dimitrios Papakonstantinou, Argyro Roumeliotou, Evangelia Pantazaka, Athanasios‐Nasir Shaukat, Athina Christopoulou, Angelos Koutras, Foteinos‐Ioannis Dimitrakopoulos, Vassilis Georgoulias, Anastasia Xagara, Evangelia Chantzara, Fillipos Koinis, Athanasios Kotsakis, Constantinos Stathopoulos, Galatea Kallergi   +13 more
wiley   +1 more source

The Viability of Topic Modeling to Identify Participant Motivations for Enrolling in Online Professional Development

Online Learning
Identifying motivation for enrollment in MOOCs has been an important way to predict participant success rates. But themes for motivation have largely centered around themes for enrolling in any MOOC, and not ones specific to the course being studied.  In
Heather Allmond Barker, Hollylynne S Lee, Shaun Kellogg, Robin Anderson   +3 more
doaj   +1 more source

Establishment Wage Differentials [PDF]

Economists have long known that individual wages depend on a combination of employee and employer characteristics, as well as the interaction of the two.
Lane, Julia I., Salmon, Laurie A., Spletzer, James R.   +2 more
core  

The Stability and Usability of Statistical Topic Models

ACM Transactions on Interactive Intelligent Systems, 2016
Statistical topic models have become a useful and ubiquitous tool for analyzing large text corpora. One common application of statistical topic models is to support topic-centric navigation and exploration of document collections. Existing work on topic modeling focuses on the inference of model parameters so the resulting model fits the input data ...
Yang, Yi, Pan, Shimei, Lu, Jie, Topkara, Mercan, Song, Yangqiu   +4 more
openaire   +3 more sources

Plasma‐activated media selectively induces apoptotic death via an orchestrated oxidative stress pathway in high‐grade serous ovarian cancer cells

Molecular Oncology, Volume 19, Issue 4, Page 1170-1187, April 2025.
High‐grade serous ovarian cancer (HGSOC) is the most common and aggressive type of ovarian cancer with urgent need for new treatment strategies. This study evaluates plasma‐activated media (PAM) as a novel treatment for HGSOC, showing its ability to selectively induce oxidative stress and apoptosis in HGSOC cell lines, patient ascites cells and primary
Lorena T. Davies, Raja Ganesen, John Toubia, Sung‐Ha Hong, Sushil Kumar KC, Martin K. Oehler, Carmela Ricciardelli, Endre J. Szili, Nirmal Robinson, Melissa R. Pitman   +9 more
wiley   +1 more source

When are Overcomplete Topic Models Identifiable? Uniqueness of Tensor Tucker Decompositions with Structured Sparsity [PDF]

arXiv, 2013
Overcomplete latent representations have been very popular for unsupervised feature learning in recent years. In this paper, we specify which overcomplete models can be identified given observable moments of a certain order. We consider probabilistic admixture or topic models in the overcomplete regime, where the number of latent topics can greatly ...
arxiv  

SKA1 promotes oncogenic properties in oral dysplasia and oral squamous cell carcinoma, and augments resistance to radiotherapy

Molecular Oncology, Volume 19, Issue 4, Page 1054-1074, April 2025.
The mitosis‐related gene SKA1 was among 629 genes consistently dysregulated in OSCC across nine public gene expression datasets. In OSCC cell lines, SKA1 promoted proliferation and migration, enhanced radioresistance, and reduced radiation‐induced senescence.
Alexander Michael Grandits, Barbara Andrea Reinoehl, Renate Wagner, Peter Kuess, Franziska Eckert, Anna Sophie Berghoff, Thorsten Fuereder, Rotraud Wieser   +7 more
wiley   +1 more source

Historia Magistra Vitae: Dynamic Topic Modeling of Roman Literature using Neural Embeddings [PDF]

arXiv
Dynamic topic models have been proposed as a tool for historical analysis, but traditional approaches have had limited usefulness, being difficult to configure, interpret, and evaluate. In this work, we experiment with a recent approach for dynamic topic modeling using BERT embeddings. We compare topic models built using traditional statistical models (
arxiv  

Surveying Persons with Disabilities: A Source Guide (Version 1) [PDF]

, 2006
As a collaborator with the Cornell Rehabilitation Research and Training Center on Disability Demographics and Statistics, Mathematica Policy Research, Inc. has been working on a project that identifies the strengths and limitations in existing disability
Bleeker, Martha, Cashion, James, Markesich, Jason   +2 more
core   +1 more source