Results 21 to 30 of about 128,390 (257)

Using Machine Learning to Identify Hydrologic Signatures With an Encoder–Decoder Framework

open access: yesWater Resources Research, 2023
Hydrologic signatures are quantitative metrics that describe a streamflow time series. Examples include annual maximum flow, baseflow index and recession shape descriptors.
Tom E. Botterill, Hilary K. McMillan
doaj   +1 more source

Separability Index in Supervised Learning [PDF]

open access: yes, 2002
We propose a new statistical approach for characterizing the class separability degree in Rp. This approach is based on a nonparametric statistic called "the Cut Edge Weight". We show in this paper the principle and the experimental applications of this statistic.
Djamel A. Zighed   +2 more
openaire   +1 more source

The Case for Learned Spatial Indexes

open access: yesCoRR, 2020
Spatial data is ubiquitous. Massive amounts of data are generated every day from billions of GPS-enabled devices such as cell phones, cars, sensors, and various consumer-based applications such as Uber, Tinder, location-tagged posts in Facebook, Twitter, Instagram, etc.
Varun Pandey   +5 more
openaire   +3 more sources

Gambling on an empty stomach: Hunger modulates preferences for learned but not described risks

open access: yesBrain and Behavior, 2023
Introduction We assess risks differently when they are explicitly described, compared to when we learn directly from experience, suggesting dissociable decision‐making systems. Our needs, such as hunger, could globally affect our risk preferences, but do
Maaike M. H. vanSwieten   +2 more
doaj   +1 more source

Learning to predict: Neuronal signatures of auditory expectancy in human event-related potentials

open access: yesNeuroImage, 2021
Learning to anticipate future states of the world based on statistical regularities in the environment is a key component of perception and is vital for the survival of many organisms.
Yonatan I. Fishman   +2 more
doaj   +1 more source

The Case for Learned Index Structures [PDF]

open access: yesProceedings of the 2018 International Conference on Management of Data, 2018
Indexes are models: a B-Tree-Index can be seen as a model to map a key to the position of a record within a sorted array, a Hash-Index as a model to map a key to a position of a record within an unsorted array, and a BitMap-Index as a model to indicate if a data record exists or not.
Kraska, Tim   +4 more
openaire   +3 more sources

Pavo: A RNN-Based Learned Inverted Index, Supervised or Unsupervised?

open access: yesIEEE Access, 2019
The booms of big data and graphic processing unit technologies have allowed us to explore more appropriate data structures and algorithms with smaller time complexity.
Wenkun Xiang   +5 more
doaj   +1 more source

Sewing narratives: engaging in lessons toward an other internationalisation

open access: yesDELTA: Documentação de Estudos em Lingüística Teórica e Aplicada, 2022
Answering Cavalcanti’s (2006) call to an Applied Linguistics enacted at its interfaces with other disciplines, in this paper we are inspired by an other globalisation, a concept coined by the geographer Milton Santos.
Ana Cecília Cossi Bizon   +1 more
doaj   +1 more source

Sorting Data via a Look-Up-Table Neural Network and Self-Regulating Index

open access: yesComplexity, 2020
The so-called learned sorting, which was first proposed by Google, achieves data sorting by predicting the placement positions of unsorted data elements in a sorted sequence based on machine learning models.
Ying Zhao   +7 more
doaj   +1 more source

DILI: A Distribution-Driven Learned Index

open access: yesProceedings of the VLDB Endowment, 2023
Targeting in-memory one-dimensional search keys, we propose a novel DIstribution-driven Learned Index tree (DILI), where a concise and computation-efficient linear regression model is used for each node. An internal node's key range is equally divided by its child nodes such that a key search enjoys perfect model prediction accuracy to find the ...
Pengfei Li 0005   +5 more
openaire   +1 more source

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