Results 31 to 40 of about 3,287,588 (278)

Distributed-based massive processing of activity logs for efficient user modeling in a Virtual Campus [PDF]

open access: yes, 2013
This paper reports on a multi-fold approach for the building of user models based on the identification of navigation patterns in a virtual campus, allowing for adapting the campus’ usability to the actual learners’ needs, thus resulting in a great ...
Caballé Llobet, Santiago   +1 more
core   +4 more sources

Can Zipf's law be adapted to normalize microarrays? [PDF]

open access: yes, 2005
BACKGROUND: Normalization is the process of removing non-biological sources of variation between array experiments. Recent investigations of data in gene expression databases for varying organisms and tissues have shown that the majority of expressed ...
Costello, Christine M   +5 more
core   +3 more sources

The Mishrif Reservoir Characteristics Utilizing Well Log Data Interpretation in the Fauqi Oilfield in Maysan, Southern Iraq

open access: yesIraqi Geological Journal, 2022
The Mishrif Formation was deemed the main oil reservoir in the Fauqi oilfield, southern Iraq. This paper aims to predict characteristic properties of the Mishrif Formation depending on the interpretation of well logs data.
Mahdi AL-Zubaidi   +2 more
doaj   +1 more source

An Improved Algorithm for Incremental DFS Tree in Undirected Graphs [PDF]

open access: yes, 2018
Depth first search (DFS) tree is one of the most well-known data structures for designing efficient graph algorithms. Given an undirected graph $G=(V,E)$ with $n$ vertices and $m$ edges, the textbook algorithm takes $O(n+m)$ time to construct a DFS tree.
Chen, Lijie   +4 more
core   +2 more sources

Separating Well Log Data to Train Support Vector Machines for Lithology Prediction in a Heterogeneous Carbonate Reservoir [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2015
The prediction of lithology is necessary in all areas of petroleum engineering. This means that to design a project in any branch of petroleum engineering, the lithology must be well known.
Mohammad Ali Sebtosheikh   +3 more
doaj   +1 more source

Resistivity zone index: A new approach in rock typing to enhance reservoir characterization using well log data

open access: yesEnergy Reports, 2021
Rock typing of reservoirs is a vital step for successful field development plans to improve oil and gas recovery. In this context, the current study addresses a new approach for reservoir rocks characterization based on their electrical properties ...
John S. Shahat   +3 more
doaj   +1 more source

Physical oceanography [PDF]

open access: yes, 1996
The physical oceanography component of the AMLR program provided the means to identify contributing water masses and environmental influences within the AMLR study area, as well as to log meteorological and sea surface conditions annotated by the ship's ...
Amos, Anthony F.   +2 more
core   +1 more source

Categorical data analysis using a skewed Weibull regression model

open access: yes, 2017
In this paper, we present a Weibull link (skewed) model for categorical response data arising from binomial as well as multinomial model. We show that, for such types of categorical data, the most commonly used models (logit, probit and complementary log-
Caron, Renault   +3 more
core   +2 more sources

Deciphering the period spacing pattern in the oscillation spectrum of the SPB star KIC 7760680 [PDF]

open access: yes, 2017
We present the analysis of KIC 7760680, the rotating Slowly Pulsating B-type star identified in the Kepler photometry. The oscillation spectrum of the star exhibits a series of 36 frequencies which are quasi-equally spaced in period. We confirm that this
Daszyńska-Daszkiewicz, Jadwiga   +2 more
core   +2 more sources

Klasifikasi Fasies pada Reservoir Menggunakan Crossplot Data Log P-Wave dan Data Log Density [PDF]

open access: yes, 2017
Klasifikasi fasies merupakan salah satu cara untuk menentukan jenis batuan dari data well log. Telah dilakukan klasifikasi fasies pada reservoir untuk mengetahui persebaran properti dan fasiesnya.
Al Fatih, Ismail Zaky   +2 more
core   +2 more sources

Home - About - Disclaimer - Privacy