Results 41 to 50 of about 483,846 (289)

Analysis K-Nearest Neighbor Method in Classification of Vegetable Quality Based on Color

Journal of Applied Engineering and Technological Science, 2022
In this research, the process of applying the K-Nearst Neighbor (KNN) method will be carried out, which is a classification method for a collection of data based on the majority of categories and the goal is to classify new objects based on attributes ...
Purwa Hasan Putra, Muhammad Syahputra Novelan, Muhammad Rizki   +2 more
doaj   +1 more source

Approximating Nearest Neighbor Distances

, 2015
Several researchers proposed using non-Euclidean metrics on point sets in Euclidean space for clustering noisy data. Almost always, a distance function is desired that recognizes the closeness of the points in the same cluster, even if the Euclidean ...
Donald R Sheehy, John N Tsitsiklis, JR Shewchuk, L Aleksandrov, Neil Rowe, S Har-peled, SB Joseph, Tamás Lukovszki   +7 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Nearest-Neighbor Searching Under Uncertainty II

, 2016
Nearest-neighbor search, which returns the nearest neighbor of a query point in a set of points, is an important and widely studied problem in many fields, and it has wide range of applications.
Agarwal, Pankaj K., Aronov, Boris, Har-Peled, Sariel, Philips, Jeff M., Yi, Ke, Zhang, Wuzhou   +5 more
core   +1 more source

Aggressive prostate cancer is associated with pericyte dysfunction

Molecular Oncology, EarlyView.
Tumor‐produced TGF‐β drives pericyte dysfunction in prostate cancer. This dysfunction is characterized by downregulation of some canonical pericyte markers (i.e., DES, CSPG4, and ACTA2) while maintaining the expression of others (i.e., PDGFRB, NOTCH3, and RGS5).
Anabel Martinez‐Romero, Ane Martinez‐Larrinaga, Joaquim Grego‐Bessa, Saioa Garcia‐Longarte, Hielke van Splunder, Ianire Astobiza, Amaia Ercilla, Laura Bozal‐Basterra, Isabel Mendizabal, Pilar Villacampa, Arkaitz Carracedo, Mariona Graupera   +11 more
wiley   +1 more source

The K-Nearest Neighbor algorithm using Forward Selection and Backward Elimination in predicting the Student’s Satisfaction Level of University Ichsan Gorontalo toward Online Lectures during the COVID-19 Pandemic

Ilkom Jurnal Ilmiah, 2023
Academic services are actions taken by state and private universities to provide convenience for student’s academic activities. During the current covid-19 pandemic, every university remains active in academic activities.
Andi Bode, Zulfrianto Y Lamasigi, Ivo Colanus Rally Drajana   +2 more
doaj   +1 more source

Study of the magnetic susceptibility in the spin-Peierls system CuGeO$_3$

, 1994
We study numerically, using a one-dimensional Heisenberg model, the spin-Peierls transition in the linear Cu$^{2+}$ spin-1/2 chains in the inorganic compound CuGeO$_3$ which has been recently observed experimentally.
Ariel Dobry, B. S. Shastry, C. K. Majumdar, D. K. Campbell, E. Pytte, G. Beni, H. Hori, H. Kuroe, J. C. Bonner, J. C. Bonner, J. E. Lorenzo, J. W. Bray, José Riera, K. Hirota, K. Okamoto, K. Sano, L. N. Bulaevskii, M. C. Cross, M. C. Cross, M. Hase, M. Hase, M. Nishi, Q. J. Harris, S. Inagaki, S. Sahling, T. Barnes, T. M. Brill   +26 more
core   +1 more source

Bridging frustrated-spin-chain and spin-ladder physics: quasi-one-dimensional magnetism of BiCu2PO6 [PDF]

, 2010
We derive and investigate the microscopic model of the quantum magnet BiCu2PO6 using band structure calculations, magnetic susceptibility and high-field magnetization measurements, as well as ED and DMRG techniques.
Alexander A. Tsirlin, Andreas M. Läuchli, Christoph Geibel, Deepa Kasinathan, F. Abraham, Franziska Weickert, Helge Rosner, Ioannis Rousochatzakis, J. B. Goodenough, Oleg Janson, Ramesh Nath   +10 more
core   +2 more sources

In vitro models of cancer‐associated fibroblast heterogeneity uncover subtype‐specific effects of CRISPR perturbations

Molecular Oncology, EarlyView.
Development of therapies targeting cancer‐associated fibroblasts (CAFs) necessitates preclinical model systems that faithfully represent CAF–tumor biology. We established an in vitro coculture system of patient‐derived pancreatic CAFs and tumor cell lines and demonstrated its recapitulation of primary CAF–tumor biology with single‐cell transcriptomics ...
Elysia Saputra, Shamsudheen Karuthedath Vellarikkal, Lixia Li, Hong Sun, Khoa Nguyen, Amber Montano, Suchitra Natarajan, Federica Piccioni, Alex Michael Tamburino, Xin Yu, Aleksandra Katarzyna Olow   +10 more
wiley   +1 more source

Deep Large Margin Nearest Neighbor for Gait Recognition

Journal of Intelligent Systems, 2021
Gait recognition in video surveillance is still challenging because the employed gait features are usually affected by many variations. To overcome this difficulty, this paper presents a novel Deep Large Margin Nearest Neighbor (DLMNN) method for gait ...
Xu Wanjiang
doaj   +1 more source