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PageRank

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Journal Article
Published: 23 July 2019
Bulletin of the Seismological Society of America (2019) 109 (5): 1605–1614.
.... In this regard, we have analyzed pattern informatic (PI) and the relative intensity methods in Iran as retrospective binary forecasting methods, and used the PageRank (PR) algorithm to rank different places. Then, we introduce a hybrid model of PR and PI methods (PR‐PI) for prediction in the earthquakes network...
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Journal Article
Published: 02 October 2018
Bulletin of the Seismological Society of America (2018) 108 (6): 3656–3667.
...Ana C. Aguiar; Stephen C. Myers Abstract We adapt the PageRank method to define signal‐correlation topology for microearthquakes at the Newberry Volcano enhanced geothermal systems (EGS) demonstration in central Oregon. The Newberry EGS was stimulated in 2012 and 2014, producing hundreds...
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Journal Article
Published: 01 March 2014
Seismological Research Letters (2014) 85 (2): 344–350.
... the windows with direct links to the window with highest PageRank. Level 2 shows stacks created with windows with direct links and one level of indirect windows (windows matched to the matches of the main window). Level 3 shows the stacks created with direct windows and two levels of indirect windows...
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Histograms of normalized PageRank values for tremor data (left) and noise data (right) for three different stations used in the analysis. Noise data shows large numbers of low PageRank values, whereas the tremor data have higher PageRank values.
Published: 01 March 2014
Figure 8. Histograms of normalized PageRank values for tremor data (left) and noise data (right) for three different stations used in the analysis. Noise data shows large numbers of low PageRank values, whereas the tremor data have higher PageRank values.
Image
One hour of tremor data (black) during the tremor event in Shikoku, Japan, on 16 April 2006 for stations KWBH, TBEH, and YNDH associated to its PageRank values (gray). The PageRank values are normalized by the total number of windows analyzed.
Published: 01 March 2014
Figure 4. One hour of tremor data (black) during the tremor event in Shikoku, Japan, on 16 April 2006 for stations KWBH, TBEH, and YNDH associated to its PageRank values (gray). The PageRank values are normalized by the total number of windows analyzed.
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The relative operating characteristic (ROC) diagrams of the PageRank–pattern informatic (PR‐PI) method for four different Mc while the initial time is t0=1/1/1996, the change time interval is from t1=1/1/2008 to t2=1/1/2011, and the forecast time interval is from t2=1/1/2011 to t3=1/1/2014. The time step is t=1  yr. The solid, two‐dashed, dashed, and dotted lines refer to Mc=3, Mc=4, Mc=2, and Mc=0, respectively. The random ROC diagram is also shown for comparison to results. The color version of this figure is available only in the electronic edition.
Published: 23 July 2019
Figure 2. The relative operating characteristic (ROC) diagrams of the PageRank–pattern informatic (PR‐PI) method for four different M c while the initial time is t 0 = 1 / 1 / 1996 , the change time interval is from t 1 = 1 / 1 / 2008 to t 2 = 1 / 1
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Selected high‐PageRank reference events (red stars) for the 2014 event families. Warmer colors and larger circles specify the number of stations that link to the reference event.
Published: 02 October 2018
Figure 10. Selected high‐PageRank reference events (red stars) for the 2014 event families. Warmer colors and larger circles specify the number of stations that link to the reference event.
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Selected high‐PageRank reference events (red stars) that anchor unique event families comprising the 2012 microseismic sequence. Warmer colors and larger circles represent a larger number of station links. Each panel has been plotted in order of decreasing number of child events.
Published: 02 October 2018
Figure 8. Selected high‐PageRank reference events (red stars) that anchor unique event families comprising the 2012 microseismic sequence. Warmer colors and larger circles represent a larger number of station links. Each panel has been plotted in order of decreasing number of child events.
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Three different LFEs from the JMA catalog (gray) compared with one template stack (black) created using the PageRank approach from an hour of Shikoku tremor data from 16 April 2006.
Published: 01 March 2014
Figure 7. Three different LFE s from the JMA catalog (gray) compared with one template stack (black) created using the PageRank approach from an hour of Shikoku tremor data from 16 April 2006.
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Stacked signal (top) formed by summing all the windows (a) using only windows with direct links (221 traces) and (b) using windows with direct and indirect links (345 traces) that were found as a match to the window with the highest PageRank. The grayscale plot (bottom) of each one of the windows forming the stack.
Published: 01 March 2014
Figure 5. Stacked signal (top) formed by summing all the windows (a) using only windows with direct links (221 traces) and (b) using windows with direct and indirect links (345 traces) that were found as a match to the window with the highest PageRank. The grayscale plot (bottom) of each one
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An example in which a direct link with a reference event was only observed at one station. Seismic traces for event 52 (black traces) are plotted on top of traces for reference event 43 (red traces). NN24 (gray background) is the only station with a direct link to the reference event. See the PageRank and Bayesloc Applied to the 2012 Newberry EGS Stimulation section for discussion.
Published: 02 October 2018
. See the PageRank and Bayesloc Applied to the 2012 Newberry EGS Stimulation section for discussion.
Image
Half day of data during 16 April 2006 of several stations in Shikoku showing the beginning of the tremor episode. (a) Detections (black) found individually for each station using the stack created with the PageRank approach for six of the stations in the analysis. (b) Detections found on at least three of the stations within a 2 s window (top), compared to Shelly et al. (2007b) detections (bottom) using template matching.
Published: 01 March 2014
Figure 9. Half day of data during 16 April 2006 of several stations in Shikoku showing the beginning of the tremor episode. (a) Detections (black) found individually for each station using the stack created with the PageRank approach for six of the stations in the analysis. (b) Detections found
Journal Article
Published: 20 August 2019
Bulletin of the Seismological Society of America (2019) 109 (5): 1653–1660.
... et al. , 2012 ). Aguiar and Myers (2018) analyzed the 2012 and 2014 sequences using a data mining technique called PageRank ( Page et al. , 1999 ; Aguiar and Beroza, 2014 ) to form event clusters (families) and identify the reference event for each family that is most connected by waveform cross...
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The effect of increasing correlation coefficient (CC) link threshold on PageRank processing. (a) Events linked to reference event 47 for a CC threshold ranging from 0.55 to 0.75. The red star is the location of the reference event. Larger circles and warmer colors indicate linkage to the reference event for a larger number of stations. Gray dots are events that are not linked to the reference event at any station. All events are plotted at the location of the Foulger and Julian (2013a) bulletin. (b) Same as (a) but for reference event 11.
Published: 02 October 2018
Figure 3. The effect of increasing correlation coefficient (CC) link threshold on PageRank processing. (a) Events linked to reference event 47 for a CC threshold ranging from 0.55 to 0.75. The red star is the location of the reference event. Larger circles and warmer colors indicate linkage
Image
Plot of stacked signals formed by windows of three different levels of links. Level 1 shows stacks created using only the windows with direct links to the window with highest PageRank. Level 2 shows stacks created with windows with direct links and one level of indirect windows (windows matched to the matches of the main window). Level 3 shows the stacks created with direct windows and two levels of indirect windows. The number on the left of each plot shows the number of traces that were used to create each stack.
Published: 01 March 2014
Figure 6. Plot of stacked signals formed by windows of three different levels of links. Level 1 shows stacks created using only the windows with direct links to the window with highest PageRank. Level 2 shows stacks created with windows with direct links and one level of indirect windows (windows
Journal Article
Journal: The Leading Edge
Published: 01 March 2017
The Leading Edge (2017) 36 (3): 262–266.
... of recursive centrality called PageRank, in which connections to nodes with lots of connections score high, to order pages in search results. There are several other ways to measure centrality, most of which are directly accessible in NetworkX; two of the most intuitive are: Degree centrality ranks...
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Journal Article
Published: 14 November 2018
Seismological Research Letters (2019) 90 (1): 3–14.
... detection problem, Wu et al. (2018) cascaded region‐based CNN to capture laboratory slip events of different durations. Finally, Aguiar and Beroza (2014) and Zhang et al. (2014) combined insights from Google’s PageRank and other image‐based search engine methods to obtain waveform templates...
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Journal Article
Journal: Geophysics
Published: 10 June 2016
Geophysics (2016) 81 (4): V341–V355.
...., 1988 ; Robert et al., 1989 ), empirical subspace detector ( Barrett and Beroza, 2014 ), the wavelet transform (WT; Anant and Dowla, 1997 ; Botella et al., 2003 ; Simons et al., 2006 ; Karamzadeh et al., 2013 ; Bogiatzis and Ishii, 2015 ), PageRank ( Aguiar and Beroza, 2014 ), higher order...
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Journal Article
Journal: Interpretation
Published: 18 August 2020
Interpretation (2020) 8 (3): 3A–12A.
... summarizes all current Scopus-based metrics. SCImago Journal Rank (SJR) is a prestige metric that assigns relative scores to all of the sources in Scopus. SJR is developed from Google’s PageRank algorithm, which ranks websites by their links from other influential websites. Similarly, a citation from...
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Journal Article
Published: 16 September 2020
Seismological Research Letters (2020) 91 (6): 3574–3584.
... of the Obspy and ObsPlus packages. The authors are also grateful to Eric Beaucé, an anonymous reviewer, and Editor Allison Bent for their constructive feedback on this article. References Aguiar A. C. , and Beroza G. C. 2014 . PageRank for earthquakes , Seismol. Res. Lett. 85 , no.  2...
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