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Acyclic graph
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Collider bias is a common threat to internal validity in clinical research but is rarely mentioned in informatics education or literature. Conditioning on a collider, which is a variable that is the shared causal descendant of an exposure and outcome, may result in spurious associations between the exposure and outcome.
7p
vighostrider
25-05-2023
6
2
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Lecture Distributed Systems - Lecture 4: Deadlock-free Packet Switching. In this chapter, students will be able to understand: Store and forward deadlock, model, requirements, solutions, buffer graph, suitable buffer and guaranteed path, the buffer-graph controller, the destination scheme, the hops-so-far scheme, acyclic orientation based scheme, forward and backward-count controllers, forward and backward-state controllers, forward-state versus forward-count.
14p
runordie1
10-05-2022
22
3
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Advanced Algorithms Analysis and Design - Lecture 34: Proof: Bellman-Ford algorithm and Shortest paths in Directed acyclic graphs. In this lecture we will cover the following: Bellman-Ford algorithm (analysis, proof); shortest path in directed acyclic graphs (assumptions, algorithm, analysis, proof of correctness);...
24p
andromedashun
26-05-2022
11
1
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Lecture Operating systems: Lesson 43 - Dr. Syed Mansoor Sarwar. The main topics covered in this lesson include: directory structures, links in UNIX/Linux, file system mounting, file sharing, file protection, acyclic-graph directories, soft (symbolic) links, mounting in UNIX,...
26p
youzhangjing_1909
28-04-2022
20
5
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The main contents of "Lecture Design and Analysis of Algorithms: Lecture 32" include all of the following: DFS-Tree Structures, Direct Acyclic Graph, Topological Sort, Precedence Constraint Graph, Topological Sort, Strong Components.
25p
youzhangjing_1909
28-04-2022
14
2
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Lecture Compiler construction: Lesson 45 - Sohail Aslam. The main topics covered in this chapter include: basic code generation, DAG representations, detect common sub-expression elimination, node with more than one parent is common sub-expression, reordering to reduce number of generated instructions,...
48p
youzhangjing_1909
28-04-2022
21
1
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To determine the relationship between clusters of back pain and joint pain and prescription opioid dispensing. Of 11,221 middle-aged participants from the Australian Longitudinal Study of Women’s Health, clusters of back pain and joint pain from 2001 to 2013 were identifed using group-based trajectory modelling. Prescription opioid dispensing from 2003 to 2015 was identifed by linking the cohort to Pharmaceutical Beneft Scheme dispensing data. Multinomial logistic regression was used to examine the association between back pain and joint pain clusters and dispensing of prescription opioids.
9p
vimackenziebezos
30-11-2021
14
1
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In this paper, we calculate the J radical and s J radical of the Leavitt path algebras with coefficients in a commutative semiring of some finite graphs. In particular, we calculate J radical and s J radical of the Leavitt path algebras with coefficients in a field of acyclic graphs, no-exit graphs and give applicable examples.
9p
nguaconbaynhay12
03-06-2021
8
1
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The issue of causation is one of the major challenges for epidemiologists who aim to understand the association between an exposure and an outcome to explain disease patterns and potentially provide a basis for intervention. Suitably designed experimental studies can offer robust evidence of the causal relationships. The experimental studies, however, are not popular, difficult or even unethical and impossible to conduct; it would be desirable if there is a methodology for reducing bias or strengthening the causal inferences drawn from observational studies.
5p
nguyenmyhuyen90
04-03-2021
15
2
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The following will be discussed in this chapter: SDT's for L-attributed definitions, intermediate-code generation, variants of syntax trees, directed acyclic graphs for expressions, the value-number method for constructing DAG's, three-address code, addresses and instructions, quadruples, triples.
41p
larachdumlanat126
31-12-2020
17
1
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The following will be discussed in this chapter: DT's for L-attributed definitions, intermediate-code generation, variants of syntax trees, directed acyclic graphs for expressions, the value-number method for constructing DAG's, three-address code, addresses and instructions, quadruples, triples.
45p
larachdumlanat126
31-12-2020
12
1
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The following will be discussed in this chapter: DT's for L-attributed definitions, intermediate-code generation, variants of syntax trees, directed acyclic graphs for expressions, the value-number method for constructing DAG's, three-address code, addresses and instructions, quadruples, triples.
51p
larachdumlanat126
31-12-2020
9
1
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Knockdown or overexpression of genes is widely used to identify genes that play important roles in many aspects of cellular functions and phenotypes. Because next-generation sequencing generates high-throughput data that allow us to detect genes, it is important to identify genes that drive functional and phenotypic changes of cells.
14p
vikentucky2711
26-11-2020
5
0
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Gene set testing has become an important analysis technique in high throughput microarray and next generation sequencing studies for uncovering patterns of differential expression of various biological processes. Often, the large number of gene sets that are tested simultaneously require some sort of multiplicity correction to account for the multiplicity effect.
16p
vikentucky2711
26-11-2020
13
1
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A standard procedure in many areas of bioinformatics is to use a single multiple sequence alignment (MSA) as the basis for various types of analysis. However, downstream results may be highly sensitive to the alignment used, and neglecting the uncertainty in the alignment can lead to significant bias in the resulting inference.
26p
vikentucky2711
24-11-2020
13
1
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Branching events in phylogenetic trees reflect bifurcating and/or multifurcating speciation and splitting events. In the presence of gene flow, a phylogeny cannot be described by a tree but is instead a directed acyclic graph known as a phylogenetic network.
12p
vioklahoma2711
19-11-2020
7
0
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The number of genomics and proteomics experiments is growing rapidly, producing an ever-increasing amount of data that are awaiting functional interpretation. A number of function prediction algorithms were developed and improved to enable fast and automatic function annotation.
13p
vioklahoma2711
19-11-2020
13
0
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Ontologies are representations of a conceptualization of a domain. Traditionally, ontologies in biology were represented as directed acyclic graphs (DAG) which represent the backbone taxonomy and additional relations between classes.
9p
viconnecticut2711
29-10-2020
11
1
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Testing predefined gene categories has become a common practice for scientists analyzing high throughput transcriptome data. A systematic way of testing gene categories leads to testing hundreds of null hypotheses that correspond to nodes in a directed acyclic graph.
11p
viconnecticut2711
28-10-2020
18
0
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High-throughput technologies have brought tremendous changes to biological domains, and the resulting high-dimensional data has also posed enormous challenges to computational science. A Bayesian network is a probabilistic graphical model represented by a directed acyclic graph, which provides concise semantics to describe the relationship between entities and has an independence assumption that is suitable for sparse omics data.
5p
vicolorado2711
23-10-2020
7
0
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