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AI predicts earthquakes with unprecedented accuracy

87 点作者 xrd9 个月前

12 条评论

dmix9 个月前
Woah that’s a big deal if true. I remember Nate Silver had a good chapter on this in his book on statistics. He went through the history of failed attempts in Italy and elsewhere. It’s a famously hard problem that has a long history of false promises and good efforts that simply didn’t work out, where experts just generally concluded it’s an unsolvable problem with current tech and the general random nature of it (in terms of usefully specific accuracy).
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WhyNotHugo9 个月前
Summary:<p>&gt; the AI algorithm correctly predicted 70% of earthquakes a week before they happened during a seven-month trial<p>&gt; The outcome was a weekly forecast in which the AI successfully predicted 14 earthquakes within about 200 miles of where it estimated they would happen<p>&gt; It missed one earthquake and gave eight false warnings.<p>So about 36% are false positives (which aren&#x27;t terrible in this particular field) and about 6% false negatives.<p>This doesn&#x27;t sound bad, but I&#x27;d love to know the precision of previous techniques &#x2F; prior art.
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andsoitis9 个月前
&gt; the AI algorithm correctly predicted 70% of earthquakes a week before they happened during a seven-month trial in China.<p>Very very impressive. The impact of this is enormous.
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ec1096859 个月前
&gt; The outcome was a weekly forecast in which the AI successfully predicted 14 earthquakes within about 200 miles of where it estimated they would happen and at almost exactly the calculated strength. It missed one earthquake and gave eight false warnings<p>There were 600 entries into the competition, I wonder how chance played into this solution winning the contest.
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jcranmer9 个月前
Given the map of the predictions versus the actual locations of the earthquakes, I&#x27;m not prepared to celebrate the accomplishment here. It looks as if in the essential details, the prediction is just flat out wrong--it&#x27;s consistently predicting earthquakes in the wrong basin.<p>Actually, digging in a little more, I&#x27;m even more suspicious. The article says<p>&gt; The outcome was a weekly forecast in which the AI successfully predicted 14 earthquakes within about 200 miles of where it estimated they would happen and at almost exactly the calculated strength. It missed one earthquake and gave eight false warnings.<p>A &quot;weekly forecast&quot; isn&#x27;t terribly descriptive, but it sounds to me like a prediction &quot;Will an earthquake occur this week? If so, where and at what strength?&quot; Given that it&#x27;s 14 earthquakes over a 7 month period (i.e., about 30 weeks), that means you&#x27;re looking mostly if not entirely at small, probably unnoticeable earthquakes. It also means that there&#x27;s basically a coin flip of whether or not an earthquake will occur--and if you score it on the accuracy of predicting such, it comes out to 30% wrong (so the p-value, if I&#x27;m doing it right is 0.02, which I guess is significant, although if another commenter is right and this is the best of 600 competitive entrants, it should be expected that one would look this good).<p>Given that both the timing and the location accuracy look less than impressive, the next question is how good a job it did at predicting the magnitude. There&#x27;s no details on the accuracy here, but given the location accuracy is hailed as impressive despite being clearly visually less than so, it wouldn&#x27;t surprise me that the magnitude predictions are similarly garbage.<p>In short, this feels like merely continued evolution in the history of earthquake prediction techniques rather than a revolution, which is to say something that is loudly hailed as being a good start yet turns out to go absolutely nowhere.
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spuz9 个月前
I wish the article would explain the criteria for winning the competition. If it&#x27;s simply percentage of actual earthquakes that were predicted I could easily write an algorithm that would score 100% by always returning the value `true`.
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janalsncm9 个月前
I can’t find a free copy of the paper. Here is the abstract for anyone who’s interested: <a href="https:&#x2F;&#x2F;pubs.geoscienceworld.org&#x2F;ssa&#x2F;bssa&#x2F;article-abstract&#x2F;113&#x2F;6&#x2F;2461&#x2F;627949&#x2F;Earthquake-Forecasting-Using-Big-Data-and" rel="nofollow">https:&#x2F;&#x2F;pubs.geoscienceworld.org&#x2F;ssa&#x2F;bssa&#x2F;article-abstract&#x2F;1...</a><p>Precision was 64% and recall was 93%. In this context recall is a lot more meaningful (how many real earthquakes were predicted) than precision (how many predictions were earthquakes) as long as there aren’t too many false alarms.
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n_ary9 个月前
This might go into hands of insurance companies who will decide to not insure areas where Earth Quake is likely to hit and could also do some more forecasting to avoid further regions.
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giantg29 个月前
If it&#x27;s able to predict them, then there must be some sort of pattern and it&#x27;s using a self-created algorithm to predict them. Has it spit out the algorithm so that analysis and enhancements can be done?
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mensetmanusman9 个月前
This is amazing. A scientifically literate society would budget 100s of millions on huge sensor networks to collect what remaining data is needed to increase predictive power above 90%.
sorokod9 个月前
&quot;The researchers said that their method had succeeded by following a relatively simple machine learning approach. The AI was given a set of statistical features based on the team’s knowledge of earthquake physics, then told to train itself on a five-year database of seismic recordings.&quot;<p>Link to the abstract:<p><a href="https:&#x2F;&#x2F;pubs.geoscienceworld.org&#x2F;ssa&#x2F;bssa&#x2F;article-abstract&#x2F;113&#x2F;6&#x2F;2461&#x2F;627949&#x2F;Earthquake-Forecasting-Using-Big-Data-and?redirectedFrom=fulltext" rel="nofollow">https:&#x2F;&#x2F;pubs.geoscienceworld.org&#x2F;ssa&#x2F;bssa&#x2F;article-abstract&#x2F;1...</a>
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dartos9 个月前
Was it AI or ML?
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