19 research outputs found

    A922 Sequential measurement of 1 hour creatinine clearance (1-CRCL) in critically ill patients at risk of acute kidney injury (AKI)

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    Introducing a vector space model to perform a proactive credit scoring

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    Many authoritative studies report how in these last years the consumer credit was up year on year, making it necessary to develop instruments able to assist the financial operators in some crucial tasks. The most important of them is to classify the loan applications as reliable or unreliable, on the basis of the customer information at their disposal. Such instruments of credit scoring allow the operators to reduce the financial losses, and for this reason they play a very important role. However, the design of effective credit scoring models is not an easy task, since it must face some problems, first among them the data imbalance in the model training. This problem arises because the number of default cases is usually much smaller than that of the non-default ones and this kind of distribution worsens the effectiveness of the state-of-the-art approaches used to define these models. This paper proposes a novel Linear Dependence Based (LDB) approach able to build a credit scoring model by using only the past non-default cases, overcoming both the imbalanced class distribution and the cold-start issues. It relies on the concept of linear dependence between the vector representations of the past and new loan applications, evaluating it in the context of a matrix. The experiments, performed by using two real-world datasets with a strong unbalanced distribution of data, show that the proposed approach achieves performance closer or better than that of one of the best state-of-the-art approaches of credit scoring such as random forests, even using only past non-default cases

    Background factors to innovation performance: results of an empirical study using fsQCA methodology

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    [EN] On the one hand, we have analyzed the relationships between four key constructs: entrepreneurial orientation, online social networks, organizational learning capability and innovation performance. On the other hand, we have observed the importance of correctly using and justifying the calibration in fsQCA given that the obtained results may differ. We developed an empirical study with 209 four-star and five-star Spanish hotels. Using the fsQCA methodology, the results show that in order to obtain innovative results, hotels should combine Entrepreneurial Orientation and online Social Networks along with organizational learning capability.Palacios Marqués, D.; Roig-Dobón, S.; Comeig-Ramírez, I. (2017). Background factors to innovation performance: results of an empirical study using fsQCA methodology. Quality & Quantity. 51:1939-1953. doi:10.1007/s11135-016-0414-2S1939195351Aljuwaiber, A.: Communities of practice as an initiative for knowledge sharing in business organizations. A literature review. J Knowl Manag 20(4), 722–736 (2016)Akehurst, G.: User generated content: the use of blogs for tourism organisations and tourism consumers. Serv Bus 3(1), 51–61 (2009)Anand, A., Walsh, I.: Should knowledge be shared generously? Tracing insights from past to present and describing a model. J Knowl Manag 20(4), 691–704 (2016)Bandura, A.: Social cognitive theory of self-regulation. Organ Behav Human Decis Process 50(2), 248–287 (1991)Beynon, M.J., Jones, P., Pickernell, D.: Country-based comparison analysis using fsQCA investigating entrepreneurial attitudes and activity. J Bus Res 69(4), 1271–1276 (2016)Bloom, J.D., Kerbel, M.: Campaign blogs in 2004 and beyond: The care, feeding and harvesting of online communities of supporters. Paper presentation at the 2006 Annual Meeting of the American Political Science Association (2006)Boyd, D., Ellison, N.: Social networking sites: definition, history, and scholarship. J Computer Com 13(1), 210–230 (2008)Brown, J., Broderick, A.J., Lee, N.: Word of mouth communication within online communities: conceptualizing the online social network. J Interact Mark 21(3), 2–20 (2007)Cadogan, J., Diamantopoulos, A.: Narver and Slater, Kohli and Jaworski and the market orientation construct: integration and internationalization. J Strateg Mark 3(1), 41–60 (1995)Covin, J.G., Slevin, D.P.: Strategic management of small firms in hostile and benign environments. Strat Manag J 10, 75–87 (1989)Crilly, D., Zollo, M., Hansen, M.T.: Faking it or muddling through? Understanding decoupling in response to stakeholder pressures. Acad Manag J 55(6), 1429–1448 (2012)Chiva, R., Alegre, J.: Organizational learning capability and job satisfaction: an empirical assessment in the ceramic tile industry. Br. J Manag 20(3), 323–340 (2009)Chu, K.-M.: A study of members’ helping behaviors in online community. Internet Res 19(3), 279–292 (2009)Churchill, G.A.: A paradigm for developing better measures of marketing constructs. J Mark Res 16(1), 64–73 (1979)Daft, R.L.: Organization theory and design. South-Western College Publishing, Cincinnati (1998)DeVellis, R.F.: Scale development: theory and applications. Sage Publications, Newbury Park (1991)Dul, J.: Identifying single necessary conditions with NCA and fsQCA. J Bus Res 69(4), 1516–1523 (2016)Dunne, A., Lawlor, M.A., Rowley, J.: Young people’s use of online social networking sites—a uses and gratifications perspective. J Res Interact Mark 4(1), 46–58 (2010)Escribá-Esteve, A., Sánchez-Peinado, E., Sánchez-Peinado, M.L.: Moderating influences of the firm’s strategic orientation-performance relationship. Int Small Bus J 26(4), 463–489 (2008)Feurer, S., Baumbach, E., Woodside, A.G.: Applying configurational theory to build a typology of ethnocentric consumers. Int Mark Rev 33(3), 351–375 (2016)Finholt, T., Sproull, L.: Electronic groups at work. Organ Sci 1(1), 41–64 (1990)Finin, T., Ding, L., Zhou, L., Joshi, A.: Social networking on the semantic web. Learn Organ 12(5), 418–430 (2005)Fiss, P.C.: Building better causal theories: a fuzzy set approach to typologies in organization research. Acad Manag J 54(2), 393–420 (2011)Hall, H., Graham, D.: Creation and recreation: motivating collaboration to generate knowledge capital in online communities. J Info Manage 24(4), 235–246 (2004)Hansen, M.T., Mors, M.L., Lovas, B.: Knowledge sharing in organizations: multiple networks, multiple phases. Acad Manage J 48(5), 776–793 (2005)Herring, S.C., Wright, E.: Bridging the gap: a genre analysis of weblogs, paper presented at 37th Hawaii International Conference on System Sciences (2004)Hutchins, E.: The technology of team navigation. In: Galegher, J.R., Kraut, R.E., Egido, L. (eds.) Intellectual teamwork: social and technological foundations of co-operative work. Psychology Press, Hove (1990)Jiménez-Zarco, A.I., Martínez-Ruíz, M.P., Izquierdo-Yusta, A.: Key service innovation drivers in the tourism sector: empirical evidence and managerial implication. Serv Bus 5(4), 339–360 (2011)Kohli, A.K., Jaworski, B.: Market orientation: the construct, research propositions, and managerial implications. J Mark 54(2), 1–18 (1990)Lee, S., Kim, T., Noh, Y., Lee, B.: Success factors of platform leadership in web 2.0 service business. Serv Bus 4(2), 89–103 (2011)Legewie, N.: An introduction to applied data analysis with qualitative comparative analysis. Forum Qual Sozialforschung/Forum 14, 3 (2013)Lin, H.F., Lee, G.G.: Determinants of success for online communities: an empirical study. Behav Info Tech 25(6), 479–488 (2006)Lomberg, C., Baldauf, A.: The Ambivalent role of risk-taking orientation in uncertain environments. In: Academy of Management Proceedings (Vol. 2014, No. 1, p. 14934)Nardi, B.A., Schiano, D.J., Gumbrecht, M., Swartz, L.: Why we blog. Com ACM 47(12), 41–46 (2004)Nelson, M.: The blog phenomenon and the book publishing industry. Publ Res Quart 22(2), 3–26 (2006)Nunnally, J.C.: Psychomtietric theory. McGraw-Hill, New York (1978)OECD-EUROSTAT: The measurement of scientific and technological activities. Proposed guidelines for collecting and interpreting technological data. Oslo Manual, OECD, Paris (1997)Pedersen, S., Mcafee, C.: Gender differences in British blogging. J Comput Commun 12(4), 12–26 (2007)Pickering, J.M., King, J.L.: Hardwiring weak ties: individual and institutional issues in computer mediated communication. Proceedings of CSCW 92, 356–361 (1992)Raban, D.R., Rafaeli, S.: Investigating ownership and the willingness to share information online. Computer Human Behav 23(5), 2367–2382 (2007)Ragin, C., Davey, S.: fs/QCA [Computer Programme], Version 2.5. University of California, Irvine (2014)Ragin, C.C.: Redesigning social inquiry: fuzzy sets and beyond, vol. 240. University of Chicago Press, Chicago (2008)Rheingold, H.: The Virtual community: homesteading on the electronic frontier. Addison-Wesley, Reading (1993)Ruiz-Molina, M.E., Gil-Saura, I., Moliner-Velázquez, B.: Does technology make a difference? Evidence from Spanish hotels. Serv Bus 5(1), 1–12 (2011)Schneider, C.Q., Wagemann, C.: Set-theoretic methods for the social sciences: a guide to qualitative comparative analysis. Cambridge University Press, Cambridge (2012)Schneider, M.R., Schulze-Bentrop, C., Paunescu, M.: Mapping the institutional capital of high-tech firms: a fuzzy-set analysis of capitalist variety and export performance. J Int Bus Stud 41(2), 246–266 (2010)Sparks, B., Browning, V.: The impact of online reviews on hotel booking intentions and perception of trust. Tour Manag 32(6), 1310–1323 (2011)Subramani, M.R., Peddibhotla, N.: Determinants of helping behaviors in online groups: a conceptual model. Paper presented at the Academy of Management Conference, New Orleans (2004)Taylor-Greene, S., Brown, D., Nelson, L., Longton, J., Gassman, T., Cohen, J., Swartz, J., Horner, R., Sugai, G., Hall, S.: School-wide behavioral support: starting the year off right. J Behav Educ 7(1), 99–112 (1997)Wellman, B., Salaff, J., Dimitrova, D., Garton, L.: Computer networks as social networks: collaborative work, telework, and virtual community. Ann Rev Sociol 22, 213–238 (1996)Woodside, A.G.: Proposing a new logic for data analysis in marketing and consumer behavior: case study research of large-N survey data for estimating algorithms that accurately profile X (extremely high-use) consumers. J Glob Sch Mark Sci 22(4), 277–289 (2012)Woodside, A.G., Prentice, C., Larsen, A.: Revisiting problem gamblers’ harsh gaze on casino services: applying complexity theory to identify exceptional customers. Psychol Mark 32(1), 65–77 (2015)Zhang, W., Storck, J.: Peripheral members in online communities. Proceedings of the American Conference on Information Systems, Boson (2001

    An insight into the experimental design for credit risk and corporate bankruptcy prediction systems

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