Results 51 to 60 of about 5,105,361 (177)
Energy Confused Adversarial Metric Learning for Zero-Shot Image Retrieval and Clustering
, 2019 Deep metric learning has been widely applied in many computer vision tasks, and recently, it is more attractive in \emph{zero-shot image retrieval and clustering}(ZSRC) where a good embedding is requested such that the unseen classes can be distinguished
Chen, Binghui, Deng, Weihong
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Existence of a non‐stationary equilibrium in search‐and‐matching models: TU and NTU
Theoretical Economics, Volume 20, Issue 4, Page 1411-1460, November 2025.This paper proves the existence of a non‐stationary equilibrium in the canonical search‐and‐matching model with heterogeneous agents. Non‐stationarity entails that the number and characteristics of unmatched agents evolve endogenously over time.
Christopher Sandmann, Nicolas Bonneton
wiley +1 more source
Weak similarities of metric and semimetric spaces
Acta Mathematica Hungarica, 2013 23 pages, 1 ...
Dovgoshey, O., Petrov, E.
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Probabilistic verification in mechanism design
Theoretical Economics, Volume 20, Issue 4, Page 1247-1284, November 2025.We introduce a model of probabilistic verification in mechanism design. The principal elicits a message from the agent and then selects a test to give the agent. The agent's true type determines the probability with which he can pass each test. We characterize whether each type has an associated test that best screens out all other types.
Ian Ball, Deniz Kattwinkel
wiley +1 more source
RACSAM, 2020 We obtain characterizations of non-negative functions on $$[0,+\infty )$$ [ 0 , + ∞ ) which preserve some classes of semimetrics. In particular, one of our main results says that for a non-decreasing function $$f:[0,+\infty )\rightarrow [0,+\infty )$$ f :
J. Jachymski, Filip Turoboś
semanticscholar +1 more source
Global sensitivity analysis of integrated assessment models with multivariate outputs
Risk Analysis, Volume 45, Issue 8, Page 2132-2156, August 2025.Abstract Risk assessments of complex systems are often supported by quantitative models. The sophistication of these models and the presence of various uncertainties call for systematic robustness and sensitivity analyses. The multivariate nature of their response challenges the use of traditional approaches.
Leonardo Chiani +3 more
wiley +1 more source
Conditional Aalen–Johansen estimation
Scandinavian Journal of Statistics, Volume 52, Issue 2, Page 873-902, June 2025.Abstract The conditional Aalen–Johansen estimator, a general‐purpose nonparametric estimator of conditional state occupation probabilities, is introduced. The estimator is applicable for any finite‐state jump process and supports conditioning on external as well as internal covariate information.
Martin Bladt, Christian Furrer
wiley +1 more source
Hybrid Coupled Fixed Point Theorems in Metric Spaces with Applications
Journal of Function Spaces, Volume 2019, Issue 1, 2019., 2019 In this manuscript, using CLR property, coupled coincidence and common coupled fixed point results for two‐hybrid pairs satisfying (F, φ)‐ contraction are demonstrated. Using the established results existence of solution to the coupled system of functional and nonlinear matrix equations is also discussed.
Muhammad Shoaib +3 more
wiley +1 more source
Fixed point results for set-contractions on semi-metric space with a directed graph
Applied General TopologyIn this paper, fixed point results with respect to generalized rational contractive mappings in semi-metric spaces endowed with a directed graph are proved. Some examples are provided to illustrate the results.
Talat Nazir +3 more
doaj +1 more source
Standardness as an invariant formulation of independence
, 2015 The notion of a homogeneous standard filtration of $\sigma$-algebras was introduced by the author in 1970. The main theorem asserted that a homogeneous filtration is standard, i.e., generated by a sequence of independent random variables, if and only if ...
Vershik, Anatoly
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