In the last paragraph, the writer again refers to the fire as a living creature by saying
A.can be blown around by the wind
B.dwarfs man's best efforts
C.heats the air above it
D.may still win the struggle
A.can be blown around by the wind
B.dwarfs man's best efforts
C.heats the air above it
D.may still win the struggle
A growing group of AI researchers think they know where the field went wrong. The problem, the scientists say, is that AI has been trying to separate the highest, most abstract levels of thought, like language and mathematics, and to duplicate them with logical, step-by-step programs. A new movement in AI, on the other hand, takes a closer look at the more roundabout way in which nature came up with intelligence. Many of these researchers study evolution and natural adaptation instead of formal logic and conventional computer programs. Rather than digital computers and transistors, some want to work with brain cells and proteins. The results of these early efforts are as promising as they are peculiar, and the new nature-based AI movement is slowly but surely moving to the forefront of the field.
Imitating the brain's neural network is a huge step in the right direction, says computer scientist and biophysicist Michael Conrad, but it still misses an important aspect of natural intelligence. "People tend to treat the brain as if it were made up of color-coded transistors", he explains, "but it's not simply a clever network of switches. There are lots of important things going on inside the brain cells themselves. " Specifically, Conrad believes that many of the brain's capabilities stem from the pattern recognition proficiency of the individual molecules that make up each brain cell. The best way to build an artificially intelligent device, he claims, would be to build it around the same sort of molecular skills.
Right now, the option that conventional computers and software are fundamentally incapable of matching the processes that take place in the brain remains controversial. But if it proves true, then the efforts of Conrad and his fellow AI rebels could turn out to be the only game in town.
The author says that the powerful computers of today ______.
A.are capable of reliably recognizing the shape of an object
B.are close to exhibiting humanlike behavior
C.are not very different in their performance from those of the 50's
D.still cannot communicate with people in a human language
A、environmental scanning
B、quality management
C、benchmarking
D、continuous improvement
A、that
B、what
C、that which
D、when there
A、The fact that the different alleles for a given gene will be located at the same position in a chromosome.
B、The discovery that multiple genes are responsible for some traits (such as eye color in files).
C、The observation that some genes will be inherited together if they are located on the same chromosome.
D、The observation that darkly staining regions of chromosome do not contain genes.
A、expand
B、enlarge
C、renew
D、double
A、enquiry
B、offer
C、complaint
D、claim
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