Results 61 to 70 of about 193,669 (327)

Detecting homologous recombination deficiency for breast cancer through integrative analysis of genomic data

open access: yesMolecular Oncology, EarlyView.
This study develops a semi‐supervised classifier integrating multi‐genomic data (1404 training/5893 validation samples) to improve homologous recombination deficiency (HRD) detection in breast cancer. Our method demonstrates prognostic value and predicts chemotherapy/PARP inhibitor sensitivity in HRD+ tumours.
Rong Zhu   +12 more
wiley   +1 more source

SMOQE: A System for Providing Secure Access to XML [PDF]

open access: yes, 2006
XML views have been widely used to enforce access control, support data integration, and speed up query answering. In many applications, e.g., XML security enforcement, it is prohibitively expensive to materialize and maintain a large number of views ...
Fan, Wenfei   +3 more
core   +1 more source

Optimization of distributed tree queries

open access: yesJournal of Computer and System Sciences, 1984
In this paper the problem of finding an optimum strategy of semi-joins for solving tree queries is studied under the objective of total time minimization. Tree queries that are conjunctions of equi-join clauses such that any two relations in the query have at most one attribute in common are considered.
Clement Yu   +2 more
openaire   +1 more source

Data‐driven discovery of gene expression markers distinguishing pediatric acute lymphoblastic leukemia subtypes

open access: yesMolecular Oncology, EarlyView.
This study investigates gene expression differences between two major pediatric acute lymphoblastic leukemia (ALL) subtypes, B‐cell precursor ALL, and T‐cell ALL, using a data‐driven approach consisting of biostatistics and machine learning methods. Following analysis of a discovery dataset, we find a set of 14 expression markers differentiating the ...
Mona Nourbakhsh   +8 more
wiley   +1 more source

EGFR‐STAT3 activation provides a therapeutic rationale for targeting aggressive ETV1‐positive prostate cancer

open access: yesMolecular Oncology, EarlyView.
Cotargeting EGFR and STAT3 with Erlotinib and TTI‐101 impairs both 2D and 3D growth of ETV1‐overexpressing prostate cancer cells by disrupting a self‐sustaining ETV1–EGFR positive feedback loop that promotes EGFR and STAT3 expression and phosphorylation (activation).
Elsa Gomes Paiva   +5 more
wiley   +1 more source

New algorithms for query modifications

open access: yesМоделирование и анализ информационных систем, 2009
New algorithms for query modifications are proposed. These algorithms involve the lexical optimization based on the mathematical transformations that have never been used for the query optimization before.
S. D. Kuznetsov, N. A. Mendkovich
doaj  

Exploring the role of cyclin D1 in the pathogenesis of multiple myeloma beyond cell cycle regulation

open access: yesMolecular Oncology, EarlyView.
Cyclin D1 overexpression altered the cell adhesion pathway, while cyclin D2 upregulation had less impact on pathway enrichment analysis. Multiple myeloma (MM) patients with cyclin D1 overexpression showed reduced CD56 expression and increased circulating tumor cells (CTC) levels, suggesting that cyclin D1 may contribute to MM cell dissemination ...
Ignacio J. Cardona‐Benavides   +13 more
wiley   +1 more source

SQL UŽKLAUSŲ OPTIMIZAVIMO TYRIMAS = SQL QUERY OPTIMIZATION RESEARCH

open access: yesTaikomieji tyrimai studijose ir praktikoje, 2017
Although scientific literature studies different aspects of SQL query optimization the major part of researches is limited to the theoretical analysis of problems.
Jurgita Lieponienė
doaj  

A Novel Urban Emergency Path Planning Method Based on Vector Grid Map

open access: yesIEEE Access, 2020
When an emergency occurs in the city, a large area of road congestion usually occurs. Therefore, it is particularly important to provide an effective emergency path planning strategy for vehicles.
Bowen Yang   +5 more
doaj   +1 more source

Query optimization for dynamic imputation [PDF]

open access: yesProceedings of the VLDB Endowment, 2017
Missing values are common in data analysis and present a usability challenge. Users are forced to pick between removing tuples with missing values or creating a cleaned version of their data by applying a relatively expensive imputation strategy. Our system, ImputeDB, incorporates imputation into a cost-based query optimizer, performing necessary ...
Cambronero, José   +3 more
openaire   +3 more sources

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