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Explore NLP JobsWhy do we now need AI ethics? What is AI ethics?
The ever-expanding availability of big data and cloud computing, improved computing power, and recent developments in deep learning algorithms have paved the way for machine learning algorithms to transform nearly every industry.
This brave new world is allowing AI to improve society and quality of life in myriad ways. Essential services such as healthcare are beginning to be transformed, but as with all new technologies, we have much to learn about harmful impacts of AI. A need has arisen to study and define AI ethics.
Machine learning algorithms gain their insights from the societies that they analyse. This means that they are also able to learn implicit bias and perpetuate inequalities such as sexism and racism in their algorithms.
For example, a machine learning algorithm used to predict the likelihood of recidivism (a repeat criminal offence) may unwittingly become biased, if the past data used to train it contains a bias. If the justice system is more likely to convict a person of one race than another, then a machine learning algorithm trained on the decisions of that justice system will be subject to the same bias and prejudice. If such a biased AI is used, for example, on parole or sentencing decisions, this can result in a feedback loop where the biased AI further entrenches the disadvantages of marginalised groups in society.
An case of a biased AI was brought to the Wisconsin Supreme Court in 2017 in Loomis v. Wisconsin, illustrating how biased AI in justice systems is no longer the preserve of science fiction.
Fast Data Science - London
Fortunately, there are AI ethics methods to detect, prevent, and remedy algorithmic bias. One simple option is to play ‘devil’s advocate’ with an AI in development and subject it to a kind of bias penetration testing. This is one of the most important areas of AI ethics.
If you would like to ensure that an AI that you are developing is free of bias, please get in contact and we will be pleased to assist you with AI ethics consulting.
Many AI systems, such as deep neural networks, operate in a high dimensional space with millions of parameters, and generate decisions with minimal accountability. Imagine being denied a car loan, or being given a high insurance premium, without a comprehensible explanation.
In some cases, the lack of explainability may be acceptable. However there is often a business requirement, or regulatory requirement, or simply an ethical obligation, to provide an explanation of decisions, especially when they impact private individuals. In Europe, the GDPR guarantees a right to explanation which can be interpreted as an obligation for companies to explain AI decisions to customers on request.
The data subject should have the right not to be subject to a decision, which may include a measure, evaluating personal aspects relating to him or her which is based solely on automated processing and which produces legal effects concerning him or her or similarly significantly affects him or her, such as automatic refusal of an online credit application or e-recruiting practices without any human intervention.
EU GDPR, Recital 71
In the United States, the Health Insurance Portability and Accountability Act (HIPAA) has imposed some similar but less stringent regulations.
This has generated a need for algorithmic explanations. Companies may encounter a difficult balancing act between developing a complex model with optimal predictive power, and providing explainability, and sometimes model performance may need to be compromised in order to comply with explainability requirements.
Fortunately, improvements in computing power have allowed for nearly any machine learning decision to be ‘explained’. In cases where a model is too complex for its inner parameters to be interpreted directly, it is possible to apply a perturbation to the model input and measure any change in the model decision. A number of machine learning explainability packages and algorithms have appeared in recent years to meet this need.
If you are struggling with balancing model explainability against performance, would simply like to comply with your obligations regarding GDPR Recital 71 or similar, or would like to discuss AI ethics in more detail, please get in contact with Fast Data Science and we will arrange a consultation.
Many big data AI projects involve the storage and processing of large amounts of personal data. In many countries, tech giants have come under fire from the media and government for flagrant abuse of user consent, data misuse, unlicenced sharing with third parties, and other dubious practices. AI systems have been known to target or profile subjects in unethical ways, such as targeted advertising without consent.
It is an essential component of AI ethics to obtain user consent at the point that data is gathered to ensure legal compliance, especially as regulation is likely to change in this area in the future.
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In natural language processing, we have the concept of word vector embeddings and sentence embeddings. This is a vector, typically hundreds of numbers, which represents the meaning of a word or sentence.
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