An investigation by OpenAQ has found that the average level of air pollution in the world’s largest cities is nearly four times higher than the maximum levels recommended by the WHO. According to estimates, 90 per cent of the world experiences harmful levels of air pollution; the problem is particularly acute in cities in the … Read more
The Singaporean Minister for Home Affairs has confirmed that the state’s police force has the authority to access Covid-19 contact-tracing app data for the purposes of criminal investigations, raising potential privacy concerns. Singapore’s TraceTogether app was developed in less than two months and was among the first Covid-19 contact tracing apps to be launched. The … Read more
Researchers from London School of Hygiene & Tropical Medicine have led a study using AI and remote-sensing satellite technologies to produce the most detailed nationwide map of air pollution. The novel method offers an impressive level of detail, with daily measurements provided in a 1x1km grid across Britain. This could transform understanding of the health … Read more
One of the spinoffs of the pandemic is the surge in digital services. The security landscape has transited to a new level, thanks to the speed at which digital transactions take place. Around 95-99 per cent of operations are automated. “Customers need not visit ‘on site.’ Physical documents are on the decline. Matters related to … Read more
Facebook is fighting demands from European data regulators to stop transferring user data from the EU to US servers. In a lawsuit filed in Dublin, the company warned that it would not be able to provide services to EU users if forced to comply with the order. Earlier this month, the Wall Street Journal reported that Ireland’s … Read more
Clever use of data to enhance the customer experience or invasion of privacy? It’s a fine line at the Magic Kingdom, but smiles usually win the day. Imagine living in a place where your every move is surveilled. A place created in the image of one almost mythological figure, where every step you take is … Read more
A data structure is a way to store and organize data in order to facilitate access and modifications. No single data structure works well for all purposes, and so it is important to know the strengths and limitations of several of them.
Australia’s competition regulator has accused Google of misleading consumers to get permission for use of their personal data for targeted advertising. The move, which is seeking a fine “in the millions” and aims to establish a precedent, comes as scrutiny grows worldwide over data privacy, with US and European lawmakers currently investigating how tech companies treat user … Read more
Apps such as Google Maps or Nokia’s Here platform routinely capture detailed information as motorists use the GPS technology to plan and navigate routes. And according to new research, this data could be invaluable for researchers and planners who need to better understand traffic flows on busy roads. Current emissions data from road transport is collated from … Read more
Once entities and relationships have been identified and defined, the first draft of the entity relationship diagram can be created. This post introduces the ER diagram by demonstrating how to diagram binary relationships. Recursive relationships are also shown. Binary Relationships Figure 1 shows examples of how to diagram one-to-one, one-to-many, and many-to- many relationships. Figure … Read more