4.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Goddard Space Flight CenterUS209 papers
- University of Maryland, College ParkUS195 papers
- Centre National de la Recherche ScientifiqueFR189 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT187 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di PadovaIT186 papers
- University of PaduaIT180 papers
- Stanford UniversityUS178 papers
- AlbaNovaSE175 papers
- Kavli Institute for Particle Astrophysics and CosmologyUS173 papers
- University of TriesteIT173 papers
- Istituto Nazionale di Fisica Nucleare, Roma Tor VergataIT172 papers
- Hiroshima UniversityJP171 papers
51 papers · 1 filter
A detailed investigation into near degenerate exponential random graphs
Mei Yin
The exponential family of random graphs has been a topic of continued research interest. Despite the relative simplicity, these models capture a variety of interesting features dis…
Simple current extensions beyond semi-simplicity
Thomas Creutzig, Shashank Kanade, Andrew R. Linshaw
Let V be a simple VOA and consider a representation category of V that is a vertex tensor category in the sense of Huang-Lepowsky. In particular, this category is a braided tensor…
The 1st Fermi Lat Supernova Remnant Catalog
Fabio Acero, Markus Ackermann, Marco Ajello +156
To uniformly determine the properties of supernova remnants (SNRs) at high energies, we have developed the first systematic survey at energies from 1 to 100 GeV using data from the…
ExpressionBot: An Emotive Lifelike Robotic Face for Face-to-Face Communication
Ali Mollahosseini, Gabriel Graitzer, Eric Borts +4
This article proposes an emotive lifelike robotic face, called ExpressionBot, that is designed to support verbal and non-verbal communication between the robot and humans, with the…
Bidirectional Warping of Active Appearance Model
Ali Mollahosseini, Mohammad H. Mahoor
Active Appearance Model (AAM) is a commonly used method for facial image analysis with applications in face identification and facial expression recognition. This paper proposes a…
eBear: An Expressive Bear-Like Robot
Xiao Zhang, Ali Mollahosseini, Amir H. Kargar B. +4
This paper presents an anthropomorphic robotic bear for the exploration of human-robot interaction including verbal and non-verbal communications. This robot is implemented with a…
Going Deeper in Facial Expression Recognition using Deep Neural Networks
Ali Mollahosseini, David Chan, Mohammad H. Mahoor
Automated Facial Expression Recognition (FER) has remained a challenging and interesting problem. Despite efforts made in developing various methods for FER, existing approaches tr…
Automatic Measurement of Physical Mobility in Get-Up-and-Go Test Using Kinect Sensor
Amir H. Kargar B., Ali Mollahosseini, Taylor Struemph +3
Get-Up-and-Go Test is commonly used for assessing the physical mobility of the elderly by physicians. This paper presents a method for automatic analysis and classification of huma…
Fermi-LAT Observations of High-Energy Gamma-Ray Emission Toward the Galactic Center
LAT Collaboration
The Fermi Large Area Telescope (LAT) has provided the most detailed view to date of the emission towards the Galactic centre (GC) in high-energy gamma-rays. This paper describes th…
Structure and fate of binary WR stars: Clues from spectropolarimetry
Jennifer L. Hoffman, Jamie R. Lomax
Because most massive stars have been or will be affected by a companion during the course of their evolution, we cannot afford to neglect binaries when discussing the progenitors o…
Resolving the Extragalactic -ray Background above 50 GeV with Fermi-LAT
LAT Collaboration
The Fermi Large Area Telescope (LAT) Collaboration has recently released a catalog of 360 sources detected above 50 GeV (2FHL). This catalog was obtained using 80 months of data re…
Cosets of Bershadsky-Polyakov algebras and rational -algebras of type
Tomoyuki Arakawa, Thomas Creutzig, Andrew R. Linshaw
The Bershadsky-Polyakov algebra is the -algebra associated to with its minimal nilpotent element . For notational convenience we defi…
Central and medial quasigroups of small order
David Stanovský, Petr Vojtěchovský
We enumerate central and medial quasigroups of order less than up to isomorphism, with the exception of those quasigroups that are isotopic to , , $C_…
Multiwavelength Evidence for Quasi-periodic Modulation in the Gamma-ray Blazar PG 1553+113
The Fermi LAT collaboration, M. Ackermann, M. Ajello +139
We report for the first time a gamma-ray and multi-wavelength nearly-periodic oscillation in an active galactic nucleus. Using the Fermi Large Area Telescope (LAT) we have discover…
Strong spatial mixing in homomorphism spaces
Raimundo Briceño, Ronnie Pavlov
Given a countable graph and a finite graph , we consider the set of graph homomorphisms from to $\mat…
Basic inequalities for weighted entropies
Yuri Suhov, Izabella Stuhl, Salimeh Yasaei Sekeh +1
The concept of weighted entropy takes into account values of different outcomes, i.e., makes entropy context-dependent, through the weight function. In this paper, we establish a n…
Search for extended gamma-ray emission from the Virgo galaxy cluster with Fermi-LAT
M. Ackermann, M. Ajello, A. Albert +118
Galaxy clusters are one of the prime sites to search for dark matter (DM) annihilation signals. Depending on the substructure of the DM halo of a galaxy cluster and the cross secti…
Abelian extensions and solvable loops
David Stanovský, Petr Vojtěchovský
Based on the recent development of commutator theory for loops, we provide both syntactic and semantic characterization of abelian normal subloops. We highlight the analogies betwe…
Commutator theory for loops
David Stanovský, Petr Vojtěchovský
Using the Freese-McKenzie commutator theory for congruence modular varieties as the starting point, we develop commutator theory for the variety of loops. The fundamental theorem o…
Commutative automorphic loops of order
Dylene Agda Souza de Barros, Alexander Grishkov, Petr Vojtěchovský
A loop is said to be automorphic if its inner mappings are automorphisms. For a prime , denote by the class of all -generated commutative automorphic loops …
Enumeration of nilpotent loops via cohomology
Daniel Daly, Petr Vojtěchovský
The isomorphism problem for centrally nilpotent loops can be tackled by methods of cohomology. We develop tools based on cohomology and linear algebra that either lend themselves t…
Moufang loops with commuting inner mappings
Gábor P. Nagy, Petr Vojtěchovský
We investigate the relation between the structure of a Moufang loop and its inner mapping group. Moufang loops of odd order with commuting inner mappings have nilpotency class at m…
Overlapping latin subsquares and full products
Joshua M. Browning, Petr Vojtěchovský, Ian M. Wanless
We derive necessary and sufficient conditions for there to exist a latin square of order containing two subsquares of order and that intersect in a subsquare of order $…
Cycle structure of autotopisms of quasigroups and Latin squares
Douglas S. Stones, Petr Vojtěchovský, Ian M. Wanless
An autotopism of a Latin square is a triple of permutations such that the Latin square is mapped to itself by permuting its rows by , columns by , and symbols by $γ…