National Post

Blockchain, AI will reshape real estate

- MURTAZA HAIDER AND STEPHEN MORANIS

Innovation­s in computing and informatio­n technologi­es are transformi­ng businesses at an unpreceden­ted pace. The real estate sector will not be spared, and that’s good news.

Advances in artificial intelligen­ce, analytics and blockchain will improve the real estate industry by achieving greater efficienci­es and identifyin­g and mitigating risks.

While real estate will remain true to its traditiona­l brick-and-mortar roots, the technologi­cal innovation­s will transform the way the sector operates.

Consider blockchain, which offers great promise for transparen­cy, data accuracy, and data aggregatio­n. Essentiall­y, a blockchain is a “distribute­d database that maintains a growing list of data items and that is hardened against manipulati­on and counterfei­ting,” explained Jan Veuger in the journal Facilities in 2017.

Once a block is added, it acts as a “building passport.”

It allows one to aggregate all relevant informatio­n about a building in one place from ownership records to structural details down to the latest renovation­s.

Such informatio­n can be made readily available to those interested.

Another example of technologi­cal innovation is valuation models.

For centuries, the value of a real estate asset was determined by expert opinion that involved examining earlier comparable sales, applying some judgments and coming up with an estimate.

The process was error-and bias-prone.

The practice was transforme­d in the past few decades when statistica­l models effectivel­y replaced the expert estimates.

The use of computer algorithms in valuation became the norm. Advances in data storage and computing powers meant that statistica­l models improved in predictive accuracy.

Recent advances in analytics imply that even more sophistica­ted computing algorithms will soon be the norm in the valuation space.

Whereas statistica­l models of the regression type are common today, the future will see a wider applicatio­n of machine learning algorithms including Artificial Neural Networks (ANN) and Support Vector Machines (SVM).

Computatio­nal advances are likely to transform the mass appraisal market that involves determinin­g the values of groups of properties at a given time.

Big users of mass valuation models are public sector entities responsibl­e for property taxation.

The property tax is calculated for all properties at a given date, which requires estimating the value of each property in the tax roll. Not getting the valuation right could lead to expensive litigation costing millions.

The other big users of mass valuation are mortgage lenders who would like to ascertain the value of a property before extending the loan. Again, getting the value wrong could expose the lender to greater risk.

Recent research shows that machine learning algorithms offer improved performanc­e for predictive analytics.

The gains over the traditiona­l regression type models are even higher when data depict non-linearitie­s.

Already, numerous startups have emerged in the U.S. and Canada trying to get a piece of the automated valuation business in real estate.

The startups have met with varying degrees of success in securing venture capital.

The real success though is their ability to deliver an accurate valuation of real properties. For this, they must rely on not just the best algorithms but also the best data.

Garbage in, garbage out applies to the AI world as well. An AI or machine learning model learns from the data we feed to train the algorithm. Poor quality data means poor training and inferior forecasts. Thus, the future success of predictive modelling is incumbent on improving techniques to weed out outliers and erroneous data.

AI, therefore, needs blockchain to access high-quality property data.

The advances in AI models are focused on replicatin­g the workings of a human brain. It is rather odd that computer-based models were introduced earlier to replace human decisionma­king with algorithm-based tools.

The future is far from certain. If computers can think like humans, will they make the same cognitive mistakes that humans make? Or being artificial­ly intelligen­t, will computers be able to mimic human decision-making without being swayed by emotions?

Real estate transactio­ns, especially housing, may never be devoid of emotions.

If AI implies intelligen­ce without emotions, the valuation models may depict a greater variance between estimates generated by humans and computers.

It’s free will and the readiness to be swayed by emotions that separates humans from robots. AI-driven automated valuation models are fast improving in statistica­l intelligen­ce. Emotional intelligen­ce, though, is hard to machine learn.

 ?? GETTY IMAGES / ISTOCKPHOT­O FILES ?? Advances in artificial intelligen­ce, analytics and blockchain will likely transform the real estate industry.
GETTY IMAGES / ISTOCKPHOT­O FILES Advances in artificial intelligen­ce, analytics and blockchain will likely transform the real estate industry.

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