347 citations · 470 across the 10 of their papers we have counts for
11 papers
Upper Bounds on Efficiency of Pixel Antennas
Albert Salmi, Philipp del Hougne, Leo Lahti +1
This letter presents a method to compute fundamental bounds on the total efficiency of pixel antennas. Using semidefinite relaxation, we obtain an upper bound on the optimization p…
Three-species predator-prey model with respect to Caputo and Caputo-Fabrizio fractional operators
Leila Eftekhari, Moein Khalighi, Soleiman Hosseinpour +1
We study distributed lag effects in three-dimensional Lotka-Volterra systems by applying the concept of fractional calculus. We derive a new numerical method that provides enhanced…
Linking statistical and ecological theory: Hubbell's unified neutral theory of biodiversity as a hierarchical Dirichlet process
Keith Harris, Todd L Parsons, Umer Z Ijaz +3
Neutral models which assume ecological equivalence between species provide null models for community assembly. In Hubbell's Unified Neutral Theory of Biodiversity (UNTB), many loca…
Tipping Elements in the Human Intestinal Ecosystem
Leo Lahti, Jarkko Salojärvi, Anne Salonen +2
Recent studies show that the microbial communities inhabiting the human intestine can have profound impact on our well-being and health. However, we have limited understanding of t…
Fully scalable online-preprocessing algorithm for short oligonucleotide microarray atlases
Leo Lahti, Aurora Torrente, Laura L. Elo +2
Accumulation of standardized data collections is opening up novel opportunities for holistic characterization of genome function. The limited scalability of current preprocessing t…
Global modeling of transcriptional responses in interaction networks
Leo Lahti, Juha E. A. Knuuttila, Samuel Kaski
Motivation: Cell-biological processes are regulated through a complex network of interactions between genes and their products. The processes, their activating conditions, and the…