Results 101 to 110 of about 11,450 (279)

Affinification: A Fine Approximation of Deformations

Computer Graphics Forum, EarlyView.
Abstract We introduce affinification, a novel method for accelerating physics‐based animation of elastic solids. During a time‐dependent simulation, our method automatically partitions the space into affine and elastic regions depending on the deformation.
A. Mercier‐Aubin, T. Schneider, P.G. Kry, S. Andrews   +3 more
wiley   +1 more source

ReTrace: Interactive Visualizations for Reasoning Traces of Large Reasoning Models

Computer Graphics Forum, EarlyView.
Abstract Recent advances in Large Language Models have led to Large Reasoning Models, which produce step‐by‐step reasoning traces. Such traces may offer insight into how models think, improving explainability and clarifying the underlying process. These traces, however, are often verbose and complex, making them cognitively demanding to comprehend ...
L. Felder, J. Miller, M. Wallinger, S. G. Kobourov, C. Chen   +4 more
wiley   +1 more source

Oracle Complexity Separation in Convex Optimization

, 2022
Many convex optimization problems have structured objective functions written as a sum of functions with different oracle types (e.g., full gradient, coordinate derivative, stochastic gradient) and different arithmetic operations complexity of these ...
Dvurechensky, Pavel, Pasechnyuk, Dmitry, Dvinskikh, Darina, Ivanova, Anastasiya, Tyurin, Alexander, Gasnikov, Alexander, Vorontsova, Evgeniya   +6 more
core   +1 more source

Integrating fossil data in ecological niche models to improve predictions of future habitat of Caribbean corals

Conservation Biology, EarlyView.
Abstract Ecological niche models (ENMs) are used to assess the abiotic preferences of species by linking their occurrences to the environmental conditions in which they live. We developed a fossil‐informed ENM framework that integrates mid‐Holocene and modern occurrences to test niche stability and reconstruct abiotic niche characteristics for four ...
Claire. M. Williams, Fernando Machado‐Stredel, Rowan C. Martindale, Corinne E. Myers   +3 more
wiley   +1 more source

On the Design of Provably Secure Lightweight Remote User Authentication Scheme for Mobile Cloud Computing Services

IEEE Access, 2017
Secure and efficient lightweight user authentication protocol for mobile cloud computing becomes a paramount concern due to the data sharing using Internet among the end users and mobile devices.
Sandip Roy, Santanu Chatterjee, Ashok Kumar Das, Samiran Chattopadhyay, Neeraj Kumar, Athanasios V. Vasilakos   +5 more
doaj   +1 more source

Variance-Guided Regression for Heteroscedastic Data With a Grouping-Based Extension for Nonlinear Prediction. [PDF]

Stat Med
ABSTRACT Although homoscedasticity is often assumed in linear regression, real data may show variance patterns or residual structures that violate this assumption. We propose VarGuid, a variance‐guided framework for two related settings: Covariate‐dependent conditional variance under a global linear mean model, and residual nonlinear mean structure ...
Liu S, Lu M.
europepmc   +2 more sources

The random oracle hypothesis is false

, 1990
The Random Oracle Hypothesis, attributed to Bennett and Gill, essentially states that the relationships between complexity classes which hold for almost all relativized worlds must also hold in the unrelativized case. Although this paper is not the first
Desh Ranjan, Richard Chang, Pankaj Rohatgi, Benny Chor, Juris Hartmanis, Oded Goldreich   +5 more
core  

Using Transposition Padding to Get CCA2 Security From Any Deterministic Encryption Schemes

IEEE Access, 2019
We study how to make any deterministic encryption scheme probabilistic and secure against adaptively chosen ciphertext attacks. A new transpositional padding encryption scheme is proposed, with which we construct a universal scheme, namely, a ...
Linming Gong, Mingming Wang, Xiangjian Zuo, Shundong Li, Daoshun Wang   +4 more
doaj   +1 more source

Secure Hash-and-Sign Signatures Without the Random Oracle

, 1999
We present a new signature scheme which is existentially unforgeable under chosen message attacks, assuming some variant of the RSA conjecture. This scheme is not based on signature trees , and instead it uses the so called hash-and-sign paradigm.
Rosario Gennaro, Tal Rabin, Shai Halevi
core   +1 more source

Shareholder Activism: Affliction for Incumbent CEOs?

Financial Management, EarlyView.
ABSTRACT We study how shareholder activism shapes CEO careers by distinguishing between two competing hypotheses: discipline and reallocation. Employing a control function approach with expected mutual fund fire sales and purchases as exclusion restrictions, we analyze 3799 US campaigns from 2006 to 2018.
Jana P. Fidrmuc, Jesús Gorrín, Jiaqi Zhao   +2 more
wiley   +1 more source