Results 51 to 60 of about 921,934 (330)

An output-sensitive algorithm for persistent homology

open access: yesComputational Geometry, 2011
The authors study the computation of persistent homology of a simplicial complex over \(\mathbb Z_2\). In this direction, the first algorithm by \textit{H. Edelsbrunner} et al. [Discrete Comput. Geom. 28, No. 4, 511--533 (2002; Zbl 1011.68152)], was based on column-wise matrix reduction of a boundary matrix of the simplicial complex.
Chen, C., Kerber, M.
openaire   +2 more sources

Comparison of CS-Based Channel Estimation for Millimeter Wave Massive MIMO Systems

open access: yesApplied Sciences, 2019
Compressed sensing (CS) has great potential in channel estimation for millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems.
Xingbo Lu   +3 more
doaj   +1 more source

Constructing Antidictionaries in Output-Sensitive Space [PDF]

open access: yesData Compression Conference, 2019
A word x that is absent from a word y is called minimal if all its proper factors occur in y. Given a collection of k words y_1, y_2,...,y_k over an alphabet Σ, we are asked to compute the set M^ℓ_y_1#...#y_k of minimal absent words of length at most ℓ ...
Lorraine A. K. Ayad   +4 more
semanticscholar   +1 more source

Output-sensitive Complexity of Multiobjective Combinatorial Optimization [PDF]

open access: yesarXiv.org, 2016
We study output-sensitive algorithms and complexity for multiobjective combinatorial optimization problems. In this computational complexity framework, an algorithm for a general enumeration problem is regarded efficient if it is output-sensitive, i.e ...
Fritz Bökler   +3 more
semanticscholar   +1 more source

Differentially Private Confidence Intervals for Empirical Risk Minimization

open access: yesThe Journal of Privacy and Confidentiality, 2019
The process of data mining with differential privacy produces results that are affected by two types of noise: sampling noise due to data collection and privacy noise that is designed to prevent the reconstruction of sensitive information. In this paper,
Yue Wang, Daniel Kifer, Jaewoo Lee
doaj   +1 more source

Advantages and pitfalls in utilizing artificial intelligence for crafting medical examinations: a medical education pilot study with GPT-4

open access: yesBMC Medical Education, 2023
Background The task of writing multiple choice question examinations for medical students is complex, timely and requires significant efforts from clinical staff and faculty.
Klang E   +10 more
doaj   +1 more source

Finding shortest non-trivial cycles in directed graphs on surfaces

open access: yesJournal of Computational Geometry, 2016
Let $D$ be a weighted directed graph cellularly embedded in a surface of genus $g$, orientable or not, possibly with boundary.  We describe algorithms to compute shortest non-contractible and shortest surface non-separating cycles in $D$, generalizing ...
Sergio Cabello   +2 more
doaj   +1 more source

Real-time damage detection of bridges using adaptive time-frequency analysis and ANN [PDF]

open access: yesNumerical Methods in Civil Engineering, 2019
Although traditional signal-based structural health monitoring algorithms have been successfully employed for small structures, their application for large and complex bridges has been challenging due to non-stationary signal characteristics with a high ...
V. Ahmadian   +2 more
doaj   +1 more source

Achieving Fairness with Decision Trees: An Adversarial Approach

open access: yesData Science and Engineering, 2020
Fair classification has become an important topic in machine learning research. While most bias mitigation strategies focus on neural networks, we noticed a lack of work on fair classifiers based on decision trees even though they have proven very ...
Vincent Grari   +3 more
doaj   +1 more source

Output-sensitive Conjunctive Query Evaluation [PDF]

open access: yesProc. ACM Manag. Data
Join evaluation is one of the most fundamental operations performed by database systems and arguably the most well-studied problem in the Database community.
Shaleen Deep   +3 more
semanticscholar   +1 more source

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