Results 11 to 20 of about 56,633 (135)

Innovative Data Modeling Concepts for Big Data Analytics: Probabilistic Cardinality and Replicability Notations

open access: greenArray
The evolving practice of big data analytics encompasses the aggregation of data from multiple sources, with the imperative of delivering metrics and reports that maintain a high standard of reliability and consistency. As stakeholders may interpretat the
Jelena Hađina   +2 more
doaj   +3 more sources

Subgraph Matching Cardinality Estimation Combining Heuristic and Boosting Method [PDF]

open access: yesJisuanji kexue yu tansuo, 2022
Attributed to its innate advantage in modeling relational information, graph data have been widely leveraged in various applications including social network, knowledge representation, etc. Compared with traditional relational database systems, primitive
HOU Wenzhe, ZHAO Xiang
doaj   +1 more source

Reasoning with Finite Sets and Cardinality Constraints in SMT [PDF]

open access: yesLogical Methods in Computer Science, 2018
We consider the problem of deciding the satisfiability of quantifier-free formulas in the theory of finite sets with cardinality constraints. Sets are a common high-level data structure used in programming; thus, such a theory is useful for modeling ...
Kshitij Bansal   +3 more
doaj   +1 more source

Evolutionary Computational Intelligence-Based Multi-Objective Sensor Management for Multi-Target Tracking

open access: yesRemote Sensing, 2022
In multi-sensor systems (MSSs), sensor selection is a critical technique for obtaining high-quality sensing data. However, when the number of sensors to be selected is unknown in advance, sensor selection is essentially non-deterministic polynomial-hard (
Shuang Liang   +3 more
doaj   +1 more source

Hyperspectral Anomaly Detection with Auto-Encoder and Independent Target

open access: yesRemote Sensing, 2023
As an unsupervised data representation neural network, auto-encoder (AE) has shown great potential in denoising, dimensionality reduction, and data reconstruction.
Shuhan Chen, Xiaorun Li, Yunfeng Yan
doaj   +1 more source

Incomplete Information Management Using an Improved Belief Entropy in Dempster-Shafer Evidence Theory

open access: yesEntropy, 2020
Quantifying uncertainty is a hot topic for uncertain information processing in the framework of evidence theory, but there is limited research on belief entropy in the open world assumption.
Bin Yang   +3 more
doaj   +1 more source

On Multistage Multiscale Stochastic Capacitated Multiple Allocation Hub Network Expansion Planning

open access: yesMathematics, 2021
The hub location problem (HLP) basically consists of selecting nodes from a network to act as hubs to be used for flow traffic directioning, i.e., flow collection from some origin nodes, probably transfer it to other hubs, and distributing it to ...
Laureano F. Escudero, Juan F. Monge
doaj   +1 more source

Multi-Period Portfolio Optimization Using Dynamic Programming Approach [PDF]

open access: yesMuṭāli̒āt-i Mudīriyyat-i Ṣan̒atī, 2018
Portfolio selection has always been one of the important issues in the field of investment management, which discusses how to allocate an investor's capital to different assets and form an efficient portfolio.
Negin Mohebbi, Amir Abbas Najafi
doaj   +1 more source

Scalable aggregation predictive analytics: a query-driven machine learning approach [PDF]

open access: yes, 2017
We introduce a predictive modeling solution that provides high quality predictive analytics over aggregation queries in Big Data environments. Our predictive methodology is generally applicable in environments in which large-scale data owners may or may ...
Anagnostopoulos, Christos   +2 more
core   +1 more source

Advances and Challenges in Machine Learning-Based Cardinality Estimation for Database Query Optimization [PDF]

open access: yesITM Web of Conferences
Accurate cardinality estimation is critical for optimizing database queries, yet traditional methods often fail to provide reliable predictions in the face of complex queries, skewed data distributions, and high-dimensional schemas.
Guan Zhibin
doaj   +1 more source

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