Created at 11pm, Mar 10
t2ruvaArtificial Intelligence
0
Artificial Intelligence, Machine Learning and Big Data in Finance
Bj8Bd7l7hh98zu7rMV_dGCBgiFYHeCnI8eu0Hp55AsU
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hnsw

Artificial Intelligence (AI) techniques are being increasingly deployed in finance, in areas such as assetmanagement, algorithmic trading, credit underwriting or blockchain-based finance, enabled by theabundance of available data and by affordable computing capacity. Machine learning (ML) models use bigdata to learn and improve predictability and performance automatically through experience and data,without being programmed to do so by humans.The deployment of AI in finance is expected to increasingly drive competitive advantages for financial firms,by improving their efficiency through cost reduction and productivity enhancement, as well as by enhancingthe quality of services and products offered to consumers. In turn, these competitive advantages canbenefit financial consumers by providing increased quality and personalised products, unlocking insightsfrom data to inform investment strategies and potentially enhancing financial inclusion by allowing for theanalysis of creditworthiness of clients with limited credit history (e.g. thin file SMEs).At the same time, AI applications in finance may create or intensify financial and non-financial risks, andgive rise to potential financial consumer and investor protection considerations (e.g. as risks of biased,unfair or discriminatory consumer results, or data management and usage concerns). The lack ofexplainability of AI model processes could give rise to potential pro-cyclicality and systemic risk in themarkets, and could create possible incompatibilities with existing financial supervision and internalgovernance frameworks, possibly challenging the technology-neutral approach to policymaking. Whilemany of the potential risks associated with AI in finance are not unique to this innovation, the use of suchtechniques could amplify these vulnerabilities given the extent of complexity of the techniques employed,their dynamic adaptability and their level of autonomy.The report can help policy makers to assess the implications of these new technologies and to identify thebenefits and risks related to their use. It suggests policy responses that that are intended to support AIinnovation in finance while ensuring that its use is consistent with promoting financial stability, marketintegrity and competition, while protecting financial consumers. Emerging risks from the deployment of AItechniques need to be identified and mitigated to support and promote the use of responsible AI. Existingregulatory and supervisory requirements may need to be clarified and sometimes adjusted, as appropriate,to address some of the perceived incompatibilities of existing arrangements with AI applications.

3.1.1. Representativeness and relevance of data One of the four Vs of big data, defined by the industry, is veracity, i.e. the uncertainty of the level of truthfulness of big data (IBM, 2020). Such uncertainty may be stemming from doubtful source reliability, insufficient quality, or inadequate nature of the data used. With big data, veracity of observations may be affected by specific behaviours (e.g. social networks), noisy or biased data collection systems (e.g. sensors, IoT), and may prove insufficient to prevent or to mitigate disparate impact dynamics.
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Data representativeness and relevance provide more precise attributes to data related to AI applications, as compared to data veracity. The former relates to whether data used provide an exhaustive representation of the population under study, with balanced representation of all relevant subpopulations. In financial markets, this could prevent over/under-representation of groups of operators, and enhance more accurate model training. In credit scoring, it could contribute to foster financial inclusion of minorities. Data relevance involves the contribution of data used to describe the phenomenon at hand without
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ARTIFICIAL INTELLIGENCE, MACHINE LEARNING AND BIG DATA IN FINANCE OECD 2021 37 38 including exogenous (misleading) information. For example, in credit scoring, relevance of information on natural persons behaviour and/or reputation (for legal persons) should be carefully assessed prior to inclusion and usage by the model. Assessment of the dataset used on a case by case basis to improve accuracy and appropriateness of data used may be cumbersome given the sheer volume of data involved, while it may reduce the efficiencies delivered by the deployment of AI.
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3.1.2. Data privacy and confidentiality The volume, ubiquity and continuous flowing nature of data used in AI systems can raise various data protection and privacy concerns. In addition to standard concerns around the collection and use of personal data, potential incompatibilities arise in the area of AI, including through the power of AI to make inferences in big datasets; questionable feasibility of applying practices of notification and consent that allow for privacy protection in ML models; as well as questions around data connectivity and the cross-border flow of data. The latter involves the importance of data connectivity in financial services and the critical importance of the ability to aggregate, store, process, and transmit data across borders for financial sector development, with the appropriate data governance safeguards and rules (Hardoon, 2020).
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