scholarly journals Research on Risk Assessment of Science and Technology Data in Network Finance Based on Portfolio Empowerment

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Qi Zhao

At present, the proposed network finance technology data risk assessment time is too long, leading to low accuracy. In order to solve the above problems, this paper puts forward the research on the risk assessment of network financial S&T data based on portfolio weighting, determines the risk index of network financial S&T data, calculates the weight of risk data in network S&T data, searches the risk data characteristic quantity in networks according to network S&T risk index, and completes the extraction of risk data. According to the risk data characteristics of network finance, a decision tree is constructed, the data entropy involved in the decision tree is calculated, the types of risk data characteristics are induced, the nodes of the decision tree are created, and the status of risk data of network finance is obtained. The state of risk data is brought into the definition of Bayesian network probability, and the risk degree of risk data is analyzed to improve the precision of risk data analysis. The experimental results show that the risk assessment of network financial S&T data based on portfolio weighting can effectively shorten the assessment time and improve the accuracy.

2013 ◽  
Vol 341-342 ◽  
pp. 1418-1422
Author(s):  
Lian Hong Wang ◽  
Yang Zhao ◽  
Hua Qiang Li

According to the theory of complex network and risk assessment, a intelligent risk automatic warning system of catastrophic accident based on conditional risk function is presented. The warning system introduces electrical betweenness and conditional risk expectations to overcome the insignificance of traditional risk assessment which only considered the status of grid and N-1 accident. A risk index system of catastrophic accident is constructed which reflects the risk of grid when it is current and in the next level of fault and portrays the trend of spreading to the catastrophic. The simulation results prove that this method which the new system use can identify the risks effectively. Consequently it provide effective reference information for security assessment of power system.


2000 ◽  
Vol 09 (03) ◽  
pp. 361-368 ◽  
Author(s):  
PIA ASTONE ◽  
VALERIA FERRARI ◽  
MICHELE MAGGIORE ◽  
JOSEPH D. ROMANO

The search for a stochastic background of gravitational waves is very interesting, both from a cosmological and astrophysical point of view. We give here a brief summary of the status of theoretical predictions, experimental results and data analysis activities.


1998 ◽  
Vol 3 (1) ◽  
pp. 13-36 ◽  
Author(s):  
Ruth Guttman ◽  
Charles W. Greenbaum

This article gives an overview of Facet Theory, a systematic approach to facilitating theory construction, research design, and data analysis for complex studies, that is particularly appropriate to the behavioral and social sciences. Facet Theory is based on (1) a definitional framework for a universe of observations in the area of study; (2) empirical structures of observations within this framework; (3) a search for correspondence between the definitional system and aspects of the empirical structure for the observations. The development of Facet Theory and Facet Design is reviewed from early scale analysis and the Guttman Scale, leading to the concepts of “mapping sentence,” “universe of content,” “common range,” “content facets,” and nonmetric multidimensional methods of data analysis. In Facet Theory, the definition of the behavioral domain provides a rationale for hypothesizing structural relationships among variables employed in a study. Examples are presented from various areas of research (intelligence, infant development, animal behavior, etc.) to illustrate the methods and results of structural analysis with Smallest Space Analysis (SSA), Multidimensional Scalogram Analysis (MSA), and Partial Order Scalogram Analysis (POSA). The “radex” and “cylindrex” of intelligence tests are shown to be outstanding examples of predicted spatial configurations that have demonstrated the ubiquitous emergence of the same empirical structures in different studies. Further examples are given from studies of spatial abilities, infant development, animal behavior, and others. The use of Facet Theory, with careful construction of theory and design, is shown to provide new insights into existing data; it allows for the diagnosis and discrimination of behavioral traits and makes the generalizability and replication of findings possible, which in turn makes possible the discovery of lawfulness. Achievements, issues, and future challenges of Facet Theory are discussed.


2019 ◽  
Vol 20 (1) ◽  
pp. 30-35
Author(s):  
Agus Prasetya

This article is motivated by the fact that the existence of the Street Vendor (PKL) profession is a manifestation of the difficulty of work and the lack of jobs. The scarcity of employment due to the consideration of the number of jobs with unbalanced workforce, economically this has an impact on the number of street vendors (PKL) exploding ... The purpose of being a street vendor is, as a livelihood, making a living, looking for a bite of rice for family, because of the lack of employment, this caused the number of traders to increase. The scarcity of jobs, causes informal sector migration job seekers to create an independent spirit, entrepreneurship, entrepreneurship, with capital, managed by traders who are true populist economic actors. The problems in street vendors are: (1) how to organize, regulate, empower street vendors in the cities (2) how to foster, educate street vendors, and (3) how to help, find capital for street vendors (4) ) how to describe grief as a Five-Foot Trader. This paper aims to find a solution to the problem of street vendors, so that cases of conflict, cases of disputes, clashes of street vendors with Satpol PP can be avoided. For this reason, the following solutions must be sought: (1) understanding the causes of the explosions of street vendors (2) understanding the problems of street vendors. (3) what is the solution to solving street vendors in big cities. (4) describe Street Vendors as actors of the people's economy. This article is qualitative research, the social paradigm is the definition of social, the method of retrieving observational data, in-depth interviews, documentation. Data analysis uses Interactive Miles and Huberman theory, with stages, Collection Data, Display Data, Data Reduction and Vervying or conclusions.


2020 ◽  
pp. 036319902096739
Author(s):  
Josep Lluís Mateo Dieste

In the Arab world, the recognized children of elite men and slave women could adopt the status of their father, ignoring the slave origin of the mother, owing to a system of patrilineal transmission. This regime co-existed with negative stereotypes toward slaves and blackness, despite the very fact that—as this study of notable families in Tetouan between 1859 and 1956 demonstrates—skin color was not the determinant factor to form part of this group. Rather, it was based on the social definition of filiation, leading to legal disputes between family members to delineate the boundaries of kinship.


2021 ◽  
Author(s):  
José M. Pascual ◽  
Ruth Prieto

Classifying CPs within the overly vague, uninformative category “suprasellar” prevents gaining any true insight regarding the risks associated with the surgical procedure employed. Routine MRI obtained with conventional T1- and T2-weighted sequences along the midsagittal and coronal trans-infundibular planes allow an accurate and reliable preoperative definition of CP topography. CPs developing primarily within the infundibulum and/or tuberal region of the hypothalamus, as well as those wholly located within the 3V, should be distinguished preoperatively from those lesions originally expanding beneath the 3V floor (3VF), the true suprasellar tumors. Among adult patients, about 40% of CPs correspond to infundibulo-tuberal tumors expanding primarily within the 3VF, above an intact pituitary gland and stalk. This subgroup of CPs shows strong adherences to the surrounding hypothalamus, as they are embedded within a wide band of reactive gliotic tissue, usually infiltrated by microscopic finger-like solid cords of tumor tissue. In elderly patients, a significant proportion of CPs correspond to papillary tumors developing above an intact 3VF, usually showing small pedicle-like or sessile-like attachments to the infundibulum. With the current diagnostic MRI workup routinely employed for CPs, it is possible, for the majority of lesions, to preoperatively differentiate these topographical variants and predict the type of CP-hypothalamus relationship that will be found during surgery.


Geosciences ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 158
Author(s):  
Didier Hantz ◽  
Jordi Corominas ◽  
Giovanni B. Crosta ◽  
Michel Jaboyedoff

There is an increasing need for quantitative rockfall hazard and risk assessment that requires a precise definition of the terms and concepts used for this particular type of landslide. This paper suggests using terms that appear to be the most logic and explicit as possible and describes methods to derive some of the main hazards and risk descriptors. The terms and concepts presented concern the rockfall process (failure, propagation, fragmentation, modelling) and the hazard and risk descriptors, distinguishing the cases of localized and diffuse hazards. For a localized hazard, the failure probability of the considered rock compartment in a given period of time has to be assessed, and the probability for a given element at risk to be impacted with a given energy must be derived combining the failure probability, the reach probability, and the exposure of the element. For a diffuse hazard that is characterized by a failure frequency, the number of rockfalls reaching the element at risk per unit of time and with a given energy (passage frequency) can be derived. This frequency is relevant for risk assessment when the element at risk can be damaged several times. If it is not replaced, the probability that it is impacted by at least one rockfall is more relevant.


2021 ◽  
pp. 1-10
Author(s):  
Alan Granadino ◽  
Eirini Karamouzi ◽  
Rinna Kullaa

Writing and researching Southern Europe as a symbiotic area has always presented a challenging task. Historians and political scientists such as Stanley Payne, Edward Malefakis, Giulio Sapelli, and Roberto Aliboni have studied the concept of Southern Europe and its difficult paths to modernity. They have been joined by sociologists and anthropologists who have debated the existence of a Southern European paradigm in the nineteenth and twentieth centuries and the arduous transformation of the region's welfare systems, economic development, education and family structures. These scholarly attempts to understand the specificities of Southern Europe date back to the concerns of Western European Cold War strategists in the 1970s, many of whom were worried about the status quo of the region in the aftermath of the fall of the dictatorships. But this geographical and geopolitical definition of the area did not necessarily follow existing cultural, political and economic patterns. Once the Eurozone crisis hit in the 2000s these questions came back with renewed force but with even less conceptual clarity, as journalists and pundits frequently gestured towards vague notions of what they considered to be ‘Southern Europe’.


2020 ◽  
Vol 48 (3) ◽  
pp. 457-494
Author(s):  
Sonja Zeman

AbstractIs there a ‚narrative syntax‘, i. e. a special grammar restricted to narrative fiction? Starting from this question which has been investigated since early structuralism, the paper focusses on grammatical characteristics of narrative discourse mode and their implications for a linguistic theory of narration. Its goal is two-fold: In a first step, the traditional accounts by Benveniste, Hamburger, Kuroda and recent typological studies are brought together in order to support the claim that the distinction between narrative and non-narrative discourse mode is a fundamental one that has consequences for the use of grammar. In a second step, I discuss three central questions within the intersection between narrative micro- and macro-structures, namely (i) the definition of narrativity, (ii) the status of the narrator, and (iii) the relation between narration and fictionality. In sum, the article argues that investigations on the ‘grammar of narration’ do not just offer insights into a specific text configuration next to others, but are deeply linked to fundamental theoretical questions concerning the architecture of language – and that the comparison between linguistic and narratological categories offers a potential for addressing them.


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