Game-Changing Event Definition and Detection in an eSports Corpus

2015 ◽  
Author(s):  
Emily Olshefski
Keyword(s):  
Event Definition

scholarly journals Estimating Rain Rates from Tipping-Bucket Rain Gauge Measurements

2008 ◽  
Vol 25 (1) ◽  
pp. 43-56 ◽  
Author(s):  
Jianxin Wang ◽  
Brad L. Fisher ◽  
David B. Wolff
Keyword(s):  
Rain Rate ◽  
Tropical Rainfall Measuring Mission ◽  
Rain Gauge ◽  
Radar Reflectivity ◽  
Time Shift ◽  
Estimation Errors ◽  
Rate Estimation ◽  
Reflectivity Data ◽  
Rain Rates ◽  
Event Definition

Abstract This paper describes the cubic spline–based operational system for the generation of the Tropical Rainfall Measuring Mission (TRMM) 1-min rain-rate product 2A-56 from tipping-bucket (TB) gauge measurements. A simulated TB gauge from a Joss–Waldvogel disdrometer is employed to evaluate the errors of the TB rain-rate estimation. These errors are very sensitive to the time scale of rain rates. One-minute rain rates suffer substantial errors, especially at low rain rates. When 1-min rain rates are averaged over 4–7-min intervals or longer, the errors dramatically reduce. Estimated lower rain rates are sensitive to the event definition whereas the higher rates are not. The median relative absolute errors are about 22% and 32% for 1-min rain rates higher and lower than 3 mm h−1, respectively. These errors decrease to 5% and 14% when rain rates are used at the 7-min scale. The radar reflectivity–rain-rate distributions drawn from the large amount of 7-min rain rates and radar reflectivity data are mostly insensitive to the event definition. The time shift due to inaccurate clocks can also cause rain-rate estimation errors, which increase with the shifted time length. Finally, some recommendations are proposed for possible improvements of rainfall measurements and rain-rate estimations.

ER designer toolkit: a graphical event definition authoring tool

2013 ◽  
Vol 13 (1) ◽  
pp. 115-123 ◽  
Author(s):  
Pythagoras Karampiperis ◽  
Giannis Mouchakis ◽  
Georgios Paliouras ◽  
Vangelis Karkaletsis
Keyword(s):  
Authoring Tool ◽  
Event Definition

The Modern Swedish National Seismic Network: Two Decades of Intraplate Microseismic Observation

2021 ◽  
Author(s):  
Björn Lund ◽  
Peter Schmidt ◽  
Zaher Hossein Shomali ◽  
Michael Roth
Keyword(s):  
Crisis Management ◽  
Automatic Detection ◽  
Seismic Network ◽  
Assessment System ◽  
Continuous Data ◽  
Seismic Events ◽  
Primary System ◽  
Individual Choice ◽  
Active Structures ◽  
Event Definition

Abstract The Swedish National Seismic Network (SNSN) was modernized and rapidly expanded during the period 1998–2012. The network currently operates 68 permanent seismic stations, all with broadband instruments supplying real-time continuous data at 100 samples per second. Continuous data from 10 stations are shared with the international community via Orfeus, and approximately 10 stations of their individual choice are shared with institutes in neighboring countries (Denmark, Finland, Norway, and Germany). The SNSN uses the South Iceland Lowland (SIL) system as the primary system for automatic detection and event definition. In addition, an in-house system based on migration and stacking is used for automatic detection of small events, and implementations of SeisComP (SC) and Earthworm are used primarily for rapid detection of larger regional events. Global monitoring is performed with SC, using approximately 250 global stations, and we operate a continuous rapid risk assessment system serving Swedish crisis management authorities. Since the start of automatic processing in August 2000, the SNSN has recorded and interactively analyzed more than 171,000 seismic events, of which 10,700 were earthquakes with local magnitudes ranging from around −1 to 4.3. The microearthquake activity detected in the last 20 yr has significantly improved the identification and understanding of seismically active structures in Sweden.

scholarly journals A new knock event definition for knock detection and control optimization

2018 ◽  
Vol 131 ◽  
pp. 80-88 ◽  
Author(s):  
P. Bares ◽  
D. Selmanaj ◽  
C. Guardiola ◽  
C. Onder
Keyword(s):  
Control Optimization ◽  
Knock Detection ◽  
And Control ◽  
Event Definition

scholarly journals Event Reconstruction in the Tracking System of the CBM Experiment

2020 ◽  
Vol 226 ◽  
pp. 01004
Author(s):  
Volker Friese
Keyword(s):  
Tracking System ◽  
Heavy Ion ◽  
Streaming Data ◽  
Research Centre ◽  
Heavy Ion Physics ◽  
Event Reconstruction ◽  
High Interaction ◽  
Tracking Device ◽  
Radiation Hard ◽  
Event Definition

The Compressed Baryonic Matter experiment (CBM) will investigate strongly interacting matter at high net-baryon densities by measuring nucleus-nucleus collisions at the FAIR research centre in Darmstadt, Germany. Its ambitious aim is to measure at very high interaction rates, unprecedented in the field of experimental heavy-ion physics so far. This goal will be reached with fast and radiation-hard detectors, self-triggered read-out electronics and streaming data acquisition without any hardware trigger. Collision events will be reconstructed and selected in real-time exclusively in software. This puts severe requirements to the algorithms for event reconstruction and their implementation. We will discuss some facets of our approaches to event reconstruction in the main tracking device of CBM, the Silicon Tracking System, covering local reconstruction (cluster and hit finding) as well as track finding and event definition.

scholarly journals An overview of a regional meteorology warning system

2012 ◽  
Vol 8 (1) ◽  
pp. 157-166 ◽  
Author(s):  
S. Gaztelumendi ◽  
J. Egaña ◽  
K. Otxoa-de-Alda ◽  
R. Hernandez ◽  
J. Aranda ◽  
...  
Keyword(s):  
Basque Country ◽  
Warning System ◽  
Weather Event ◽  
Event Definition

Abstract. In this work we present a regional meteorology warning system, particularly the operational weather warning system used by the Basque Meteorology Agency (Euskalmet) for Basque Country. System considers different meteorological phenomena capable of generate warnings, and is based on combined thresholds criteria depending on particular weather event and area of territory where is applied. In this work we describe the most significant aspects related with the warning event definition and the warning bulletin. Conclusions from comparison with the former system (prior to 2009) and feedback from different users are presented.

scholarly journals Defining and analyzing the frequency and severity of flood events to improve risk management from a reinsurance standpoint

2018 ◽  
Vol 22 (7) ◽  
pp. 3761-3775 ◽  
Author(s):  
Elliott P. Morrill ◽  
Joseph F. Becker
Keyword(s):  
Flood Insurance ◽  
Coding System ◽  
Independent Events ◽  
Duration Magnitude ◽  
Temporal Aspects ◽  
Unit Code ◽  
Flood Peaks ◽  
The Individual ◽  
Event Definition ◽  
Reinsurance Market

Abstract. The National Flood Insurance Program (NFIP) debt has accelerated research into private flood insurance options. Offering this coverage begins with the ability to transfer the risk to the reinsurance market. Within the industry, perils such as hurricanes and earthquakes have standard definitions, but no such definition exists for floods. An event definition must examine the spatial and temporal aspects of the flood as well as the complexities of individual events. In this paper we were able to apply a data-driven methodology to capture and aggregate flood peaks into independent events. To aggregate flood peaks into independent events we needed to define what constituted a basin as our area of aggregation. The USGS utilizes the hydrological unit code (HUC) a 2- to 12-digit code that follows the Pfafsetter Coding System. The HUC code is used to identify varying levels of basin sizes ranging from region (2 digits) to subwatershed (12 digits). We chose to analyze both the HUC8 and HUC6, and a total of 7932 HUC8 events and 8444 HUC6 events were recorded during the 15 water years used in our study. Each event was characterized by duration, magnitude and severity. Focusing on the HUC8, events were unevenly distributed nationally while severity was relatively evenly distributed. The goal for our study was to take a method and be able to apply it to basins of varying characteristics. This framework relied on the ability to analyze the individual processes related to each individual basin.

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