17 research outputs found
Fundamentos de Programación: Catálogo de ejercicios y soluciones
©2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0
Explainable artificial intelligence prediction-based model in laparoscopic liver surgery for segments 7 and 8: an international multicenter study
Artificial intelligence; Liver resection; Minimally invasive surgeryInteligencia artificial; Resección hepática; Cirugía mínimamente invasivaIntel·ligència artificial; Resecció hepàtica; Cirurgia mínimament invasivaBackground
Artificial intelligence (AI) is becoming more useful as a decision-making and outcomes predictor tool. We have developed AI models to predict surgical complexity and the postoperative course in laparoscopic liver surgery for segments 7 and 8.
Methods
We included patients with lesions located in segments 7 and 8 operated by minimally invasive liver surgery from an international multi-institutional database. We have employed AI models to predict surgical complexity and postoperative outcomes. Furthermore, we have applied SHapley Additive exPlanations (SHAP) to make the AI models interpretable. Finally, we analyzed the surgeries not converted to open versus those converted to open.
Results
Overall, 585 patients and 22 variables were included. Multi-layer Perceptron (MLP) showed the highest performance for predicting surgery complexity and Random Forest (RF) for predicting postoperative outcomes. SHAP detected that MLP and RF gave the highest relevance to the variables “resection type” and “largest tumor size” for predicting surgery complexity and postoperative outcomes. In addition, we explored between surgeries converted to open and non-converted, finding statistically significant differences in the variables “tumor location,” “blood loss,” “complications,” and “operation time.”
Conclusion
We have observed how the application of SHAP allows us to understand the predictions of AI models in surgical complexity and the postoperative outcomes of laparoscopic liver surgery in segments 7 and 8
SCORPION Cyber Range: Fully Customizable Cyberexercises, Gamification and Learning Analytics to Train Cybersecurity Competencies
It is undeniable that we are witnessing an unprecedented digital revolution.
However, recent years have been characterized by the explosion of cyberattacks,
making cybercrime one of the most profitable businesses on the planet. That is
why training in cybersecurity is increasingly essential to protect the assets
of cyberspace. One of the most vital tools to train cybersecurity competencies
is the Cyber Range, a virtualized environment that simulates realistic
networks. The paper at hand introduces SCORPION, a fully functional and
virtualized Cyber Range, which manages the authoring and automated deployment
of scenarios. In addition, SCORPION includes several elements to improve
student motivation, such as a gamification system with medals, points, or
rankings, among other elements. Such a gamification system includes an adaptive
learning module that is able to adapt the cyberexercise based on the users'
performance. Moreover, SCORPION leverages learning analytics that collects and
processes telemetric and biometric user data, including heart rate through a
smartwatch, which is available through a dashboard for instructors. Finally, we
developed a case study where SCORPION obtained 82.10% in usability and 4.57 out
of 5 in usefulness from the viewpoint of a student and an instructor. The
positive evaluation results are promising, indicating that SCORPION can become
an effective, motivating, and advanced cybersecurity training tool to help fill
current gaps in this context.Comment: 31 page
Red “Universidad, género, docencia e igualdad”
La Red de investigación en docencia universitaria “Universidad, docencia, genero e igualdad” persigue avanzar en la calidad e innovación de las enseñanzas universitarias a partir de la inclusión de la perspectiva de género. Se busca dar cumplimiento a las directrices generales de los nuevos planes de estudio respecto del principio de igualdad de oportunidades entre hombres y mujeres en la formación universitaria (Real Decreto 1393/2007. BOE nº 260, 30 de octubre de 2007). En la quinta edición de la Red, y dada su composición multidisciplinar, se ha trabajado en tres líneas de investigación: 1) mantenimiento del “Portal web con recursos docentes con perspectiva de género”, proyecto financiado por el Instituto de la Mujer (PACUI, 2012) e iniciado en el curso 2012-2013; 2) desarrollo de la primera versión de “iLengUA”, una herramienta informática para un discurso inclusivo e igualitario; y 3) diseño de una Guía de recomendaciones para la inclusión de la perspectiva de género en la docencia universitaria
Estudios en Historia Moderna desde una visión Atlántica. Libro homenaje a la trayectoria de la profesora María Inés Carzolio
Fil: Tarragó, Griselda Beatriz. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Escuela de Historia; Argentina.Fil: Gentinetta, Martín. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Escuela de Historia; Argentina.Este libro homenaje se formula como un diálogo abierto entre grupos de investigación europeos y americanos sobre problemáticas referidas a una visión Atlántica de la proyección de los Imperios Ibéricos en la Edad Moderna. Los ejes convocantes son aquellos que a lo largo de su dilatada trayectoria en la investigación histórica ha desarrollado y publicado la Dra. María Inés Carzolio, tanto en Argentina como en el extranjero: Las raíces medievales de la Europa Moderna, las monarquías del Antiguo Régimen, la organización del espacio social y los agentes sociales en la modernidad, cuestiones sobre creencias y religiosidad, estudios urbanos y, finalmente, problemáticas en torno al campo discursivo y cultural.http://www.libros.fahce.unlp.edu.ar/index.php/libros/catalog/book/94Fil: Tarragó, Griselda Beatriz. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Escuela de Historia; Argentina.Fil: Gentinetta, Martín. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Escuela de Historia; Argentina.Otras Historia y Arqueologí
Relationship of Weather Types on the Seasonal and Spatial Variability of Rainfall, Runoff, and Sediment Yield in the Western Mediterranean Basin
Rainfall is the key factor to understand soil erosion processes, mechanisms, and rates. Most research was conducted to determine rainfall characteristics and their relationship with soil erosion (erosivity) but there is little information about how atmospheric patterns control soil losses, and this is important to enable sustainable environmental planning and risk prevention. We investigated the temporal and spatial variability of the relationships of rainfall, runoff, and sediment yield with atmospheric patterns (weather types, WTs) in the western Mediterranean basin. For this purpose, we analyzed a large database of rainfall events collected between 1985 and 2015 in 46 experimental plots and catchments with the aim to: (i) evaluate seasonal differences in the contribution of rainfall, runoff, and sediment yield produced by the WTs; and (ii) to analyze the seasonal efficiency of the different WTs (relation frequency and magnitude) related to rainfall, runoff, and sediment yield. The results indicate two different temporal patterns: the first weather type exhibits (during the cold period: autumn and winter) westerly flows that produce the highest rainfall, runoff, and sediment yield values throughout the territory; the second weather type exhibits easterly flows that predominate during the warm period (spring and summer) and it is located on the Mediterranean coast of the Iberian Peninsula. However, the cyclonic situations present high frequency throughout the whole year with a large influence extended around the western Mediterranean basin. Contrary, the anticyclonic situations, despite of its high frequency, do not contribute significantly to the total rainfall, runoff, and sediment (showing the lowest efficiency) because of atmospheric stability that currently characterize this atmospheric pattern. Our approach helps to better understand the relationship of WTs on the seasonal and spatial variability of rainfall, runoff and sediment yield with a regional scale based on the large dataset and number of soil erosion experimental stations
52 Exploring the Affordances of Multimodal Data to Improve Cybersecurity Training with Cyber Range Environments
During the last years, the constant cybersecurity breaches being reported are remarking the necessity of raising the number of cybersecurity experts that can tackle such threats. In this sense, educational technology environments can help to generate more immersive and realistic environments, and within this context, cyber range systems are one of the foremost solutions. However, these systems might not provide rich and detailed feedback to instructors and students regarding the performance in each cyberexercise. In this paper we discuss the potential of multimodal data, including clickstream, console commands, biometrics, and other sensor data, to improve the feedback and evaluation process in cyber range environments. We present the affordances that these techniques can bring to cybersecurity training as well as a preliminary architecture to implement them. We argue that these technologies can become a new generation of high-quality, realistic, and adaptive cybersecurity training that can have a dual (civil and military) impact on our society
Relationship of Weather Types on the Seasonal and Spatial Variability of Rainfall, Runoff, and Sediment Yield in the Western Mediterranean Basin
Rainfall is the key factor to understand soil erosion processes, mechanisms, and rates. Most research was conducted to determine rainfall characteristics and their relationship with soil erosion (erosivity) but there is little information about how atmospheric patterns control soil losses, and this is important to enable sustainable environmental planning and risk prevention. We investigated the temporal and spatial variability of the relationships of rainfall, runoff, and sediment yield with atmospheric patterns (weather types, WTs) in the western Mediterranean basin. For this purpose, we analyzed a large database of rainfall events collected between 1985 and 2015 in 46 experimental plots and catchments with the aim to: (i) evaluate seasonal differences in the contribution of rainfall, runoff, and sediment yield produced by the WTs; and (ii) to analyze the seasonal efficiency of the different WTs (relation frequency and magnitude) related to rainfall, runoff, and sediment yield. The results indicate two different temporal patterns: the first weather type exhibits (during the cold period: autumn and winter) westerly flows that produce the highest rainfall, runoff, and sediment yield values throughout the territory; the second weather type exhibits easterly flows that predominate during the warm period (spring and summer) and it is located on the Mediterranean coast of the Iberian Peninsula. However, the cyclonic situations present high frequency throughout the whole year with a large influence extended around the western Mediterranean basin. Contrary, the anticyclonic situations, despite of its high frequency, do not contribute significantly to the total rainfall, runoff, and sediment (showing the lowest efficiency) because of atmospheric stability that currently characterize this atmospheric pattern. Our approach helps to better understand the relationship of WTs on the seasonal and spatial variability of rainfall, runoff and sediment yield with a regional scale based on the large dataset and number of soil erosion experimental stations.Spanish Government (Ministry of Economy and Competitiveness, MINECO) and FEDER Projects: CGL2014 52135-C3-3-R, ESP2017-89463-C3-3-R, CGL2014-59946-R, CGL2015-65569-R, CGL2015-64284-C2-2-R, CGL2015-64284-C2-1-R, CGL2016-78075-P, GL2008-02879/BTE, LEDDRA 243857, RECARE-FP7, CGL2017-83866-C3-1-R, and PCIN-2017-061/AEI. Dhais Peña-Angulo received a “Juan de la Cierva” postdoctoral contract (FJCI-2017-33652 Spanish Ministry of Economy and Competitiveness, MEC). Ana Lucia acknowledge the "Brigitte-Schlieben-Lange-Programm". The “Geoenvironmental Processes and Global Change” (E02_17R) was financed by the Aragón Government and the European Social Fund. José Andrés López-Tarazón acknowledges the Secretariat for Universities and Research of the Department of the Economy and Knowledge of the Autonomous Government of Catalonia for supporting the Consolidated Research Group 2014 SGR 645 (RIUS- Fluvial Dynamics Research Group). Artemi Cerdà thank the funding of the OCDE TAD/CRP JA00088807. José Martínez-Fernandez acknowledges the project Unidad de Excelencia CLU-2018-04 co-funded by FEDER and Castilla y León Government. Ane Zabaleta is supported by the Hydro-Environmental Processes consolidated research group (IT1029-16, Basque Government). This paper has the benefit of the Lab and Field Data Pool created within the framework of the COST action CONNECTEUR (ES1306)