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HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <search>
      <p ns="0" title="Aspen 2010 : les promesses et les danger des Big-Data" snippet="...ig Data.  We’re trying to get to a system where you can begin to extract &lt;span class=&#039;searchmatch&#039;&gt;meaning&lt;/span&gt; from automated systems…. Less is more only if we are able  to  reduce  la&#10;...nd bars—was a “five Sigma event,” according to Sense Networks, Inc., &lt;span class=&#039;searchmatch&#039;&gt;meaning&lt;/span&gt; a significant deviation from the statistical mean.  “A lot of people were&#10;" size="121307" wordcount="18041" timestamp="2016-07-12T01:08:59Z" />
      <p ns="0" title="Hello! Roman" snippet="...d yourself by texting it. The more you chat, the more it learns to be you. &lt;span class=&#039;searchmatch&#039;&gt;Meaning&lt;/span&gt; that when you die, you’ll have a Black Mirror-style bot avatar ready to g&#10;" size="18330" wordcount="3149" timestamp="2019-06-10T13:18:07Z" />
      <p ns="0" title="Artificial intelligence and society" snippet="...can be used effectively. For example, an effort will be needed to make the &lt;span class=&#039;searchmatch&#039;&gt;meaning&lt;/span&gt; of data explicit, together with a representation of the context in which th&#10;" size="17045" wordcount="2547" timestamp="2020-01-21T19:06:38Z" />
    </search>
  </query>
</api>