Human influence on the coral reef system. Testing AI systems. A woman with perfect memory

Science Week: British fishermen report large-scale octopus blooming in waters off the southwestern England. Researchers discovered the largest fossil pearl in history in the Australian outback. Physicists have detailed a very efficient thermal engine that challenges the thermodynamic understanding of the second century. (It is reported in Physical Review LetterSo that's probably legal. )

Additionally, popular marine sanctuaries have recovered during the 2020 Covid-19 pandemic in the absence of humans. Researchers have developed metrics that characterize the ability of AI systems to reveal domain systems from sequence prediction. The neurologist reported on a young woman with an extraordinary memory recall:

Humans are destructive

Evidence from Hanuama Bay Nature Reserve in Hawaii shows human influence on the marine reef system. A highly popular tourist destination, the reserve was completely closed during the 2020 Covid-19 pandemic. Researchers at the University of Hawaii Manoa Institute of Marine Biology have used the closure to study changes in water quality, seal sightings, fish richness and marine life behavior. Without human visitors, the site's physical and biological health quickly returned to normal levels, including fish populations and coral reef health.

Lead author Elizabeth Maddin said, “Ecosystems responded in surprising ways. These types of changes occur quickly, suggesting that everyday human presence has a realistic and measurable effect on coral reef health.

Standardized Testing of AI

Artificial intelligence systems can make specific predictions similar to Johannes Kepler's Law of Movement. However, MIT researchers wanted to know whether current systems could provide a deeper understanding of these laws of motion, as expressed by Isaac Newton's law of gravity. In other words, can a basic model that makes appropriate sequence predictions actually reveal a deeper understanding of the domain? If so, they could generalize that understanding to a new kind of problem.

The goal of this study was not to determine the functionality of the AI ​​system. Rather, researchers sought to develop predictive power metrics that could be applied to any model. They developed a metric called measurement-guided bias, describing biases to trends or responses that reflect reality based on inferences developed from a large corpus of specific data. They used a lattice model: in a one-dimensional lattice, objects can only move along a line.

Predictive models have proven that they can reconstruct the world of one-dimensional lattices. Adding dimensions to the grid added more complexity. The model continued to work well with two states and three lattices, but as the number of states increased it began to diverge from the real world model.

Total recall

Autobiographical memory is remembering life experiences from the present to childhood. It includes sensory and emotional memories of people, places, and events. Most people have a combination of high reliability and poor memory depending on their importance and the associated event occurred.

However, a small number of people have a condition called the hyperpharynx, in which they remember everything indexed by date. High thyroidism is highly recallable, allowing time to travel in the mind, and can relate the exact events that occurred on a particular day even decades later.

Researchers at the Paris Brain Institute studied one such individual, a 17-year-old girl called TL. TL distinguishes her memory into two types. “Black Memory” corresponds to the knowledge of the encyclopedia accumulated through research. and a sophisticated palace of memory that she calls the “white room” where she can visualize autobiographical details of the past.

Some of her memories are preserved in the form of text messages and photographs. Using a temporary test of autobiographical memory and temporal extended autobiographical memory task (an episode test of autobiographical memory), she decided that she remembered her life with extraordinary strength.

“Autobiographical thalamus also appears to be closely linked to synesthesia, a neurological condition that involves at least two sensations in one sensory modality,” said neurologist Laurent Cohen.

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