4 results on '"Xiu D"'
Search Results
2. Landslide monitoring techniques in the Geological Surveys of Europe.
- Author
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Auflič, Mateja Jemec, Herrera, Gerardo, Mateos, Rosa María, Poyiadji, Eleftheria, Quental, Lídia, Severine, Bernardie, Peternel, Tina, Podolszki, Laszlo, Calcaterra, Stefano, Kociu, Arben, Warmuz, Bartłomiej, Jelének, Jan, Hadjicharalambous, Kleopas, Becher, Gustaf Peterson, Dashwood, Claire, Ondrus, Peter, Minkevičius, Vytautas, Todorović, Saša, Møller, Jens Jørgen, and Marturia, Jordi
- Subjects
LANDSLIDES ,GEOLOGICAL surveys ,LANDSLIDE hazard analysis ,GEOLOGICAL mapping ,SURFACE topography ,NATURAL disaster warning systems ,GEOLOGICAL maps - Abstract
Landslide monitoring is a mandatory step in landslide risk assessment. It requires collecting data on landslide conditions (e.g., areal extent, landslide kinematics, surface topography, hydrogeometeorological parameters, and failure surfaces) from different time periods and at different scales, from site-specific to local, regional, and national, to assess landslide activity. In this analysis, we collected information on landslide monitoring techniques from 17 members of the Earth Observation and Geohazards Expert Group (from EuroGeoSurveys) deployed between 2005 and 2021. We examined the types of the 75 recorded landslides, the landslide techniques, spatial resolution, temporal resolution, status of the technique (operational, non-operational), time of using (before the event, during the event, after the event), and the applicability of the technique in early warning systems. The research does not indicate the accuracy of each technique but, rather, the extent to which Geological Surveys conduct landslide monitoring and the predominant techniques used. Among the types of landslides, earth slides predominate and are mostly monitored by geological and engineering geological mapping. The results showed that Geological Surveys mostly utilized more traditional monitoring techniques since they have a broad mandate to collect geological data. In addition, this paper provides new insights into the role of the Geological Surveys on landslide monitoring in Europe and contributes to landslide risk reduction initiatives and commitments (e.g., the Kyoto Landslide Commitment 2020). [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
3. Forecasting Loan Default in Europe with Machine Learning*.
- Author
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Barbaglia, Luca, Manzan, Sebastiano, and Tosetti, Elisa
- Subjects
DEFAULT (Finance) ,INTEREST rates ,MACHINE learning ,RESIDENTIAL mortgages ,CHARACTERISTIC functions ,MORTGAGE loan default - Abstract
We use a dataset of 12 million residential mortgages to investigate the loan default behavior in several European countries. We model the default occurrence as a function of borrower characteristics, loan-specific variables, and local economic conditions. We compare the performance of a set of machine learning algorithms relative to the logistic regression, finding that they perform significantly better in providing predictions. The most important variables in explaining loan default are the interest rate and the local economic characteristics. The existence of relevant geographical heterogeneity in the variable importance points at the need for regionally tailored risk-assessment policies in Europe. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
4. Laparoscopic surgery for pancreatic neoplasms: the European association for endoscopic surgery clinical consensus conference.
- Author
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Edwin, Bjørn, Sahakyan, Mushegh, Abu Hilal, Mohammad, Besselink, Marc, Braga, Marco, Fabre, Jean-Michel, Fernández-Cruz, Laureano, Gayet, Brice, Kim, Song, Khatkov, Igor, Sahakyan, Mushegh A, Besselink, Marc G, Kim, Song Cheol, Khatkov, Igor E, and EAES Consensus Conference Study Group
- Subjects
LAPAROSCOPY ,LAPAROSCOPIC surgery ,PANCREATICODUODENECTOMY ,PANCREATECTOMY ,CELL enucleation ,DELPHI method ,MEDICAL societies ,PANCREATIC tumors - Abstract
Background: Introduced more than 20 years ago, laparoscopic pancreatic surgery (LAPS) has not reached a uniform acceptance among HPB surgeons. As a result, there is no consensus regarding its use in patients with pancreatic neoplasms. This study, organized by the European Association for Endoscopic Surgery (EAES), aimed to develop consensus statements and clinical recommendations on the application of LAPS in these patients.Methods: An international panel of experts was selected based on their clinical and scientific expertise in laparoscopic and open pancreatic surgery. Each panelist performed a critical appraisal of the literature and prepared evidence-based statements assessed by other panelists during Delphi process. The statements were further discussed during a one-day face-to-face meeting followed by the second round of Delphi. Modified statements were presented at the plenary session of the 24th International Congress of the EAES in Amsterdam and in a web-based survey.Results: LAPS included laparoscopic distal pancreatectomy (LDP), pancreatoduodenectomy (LPD), enucleation, central pancreatectomy, and ultrasound. In general, LAPS was found to be safe, especially in experienced hands, and also advantageous over an open approach in terms of intraoperative blood loss, postoperative recovery, and quality of life. Eighty-five percent or higher proportion of responders agreed with the majority (69.5%) of statements. However, the evidence is predominantly based on retrospective case-control studies and systematic reviews of these studies, clearly affected by selection bias. Furthermore, no randomized controlled trials (RCTs) have been published to date, although four RCTs are currently underway in Europe.Conclusions: LAPS is currently in its development and exploration stages, as defined by the international IDEAL framework for surgical innovation. LDP is feasible and safe, performed in many centers, while LPD is limited to few centers. RCTs and registry studies are essential to proceed with the assessment of LAPS. [ABSTRACT FROM AUTHOR]- Published
- 2017
- Full Text
- View/download PDF
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