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DTSTART:20240424T090000Z
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TRANSP:OPAQUE
LOCATION:Auditorium and Online (Teams)
SUMMARY:ICFO | BORJA REQUENA POZO
CLASS:PUBLIC
DESCRIPTION:The integration of artificial intelligence into research is pro
 pelling progress and discoveries across the entire scientific landscape. A
 rtificial intelligence tools boost the development of novel scientific ins
 ights and theories by processing extensive data sets\, guiding exploration
  and hypothesis formation\, enhancing experimental setups\, and even enabl
 ing autonomous discovery. In this thesis\, we harness the power of machine
  learning\, a sub-field of artificial intelligence\, to study non-determin
 istic systems\, which are amongst the hardest to characterize.\nOn one han
 d\, we address problems inherent to the study of quantum systems and the d
 evelopment of quantum technologies. Quantum physics presents formidable ch
 allenges due to the associated exponential complexity with the size of the
  system at hand\, as well as its intrinsic stochastic nature and the prese
 nce of intricate correlations between its components. We employ reinforcem
 ent learning\, a machine learning technique that excels at dealing with va
 st hypothesis spaces\, to address some of these challenges. Notably\, rein
 forcement learning has demonstrated super-human performance in multiple co
 mplex games like Go\, which present similar characteristics to the problem
 s encountered in the study of quantum physics. We use it to systematically
  simplify complex common problems in condensed matter and quantum informat
 ion processing tasks\, as well as to implement robust calibration schemes 
 for quantum computers.\nOn the other hand\, we focus on the characterizati
 on of complex stochastic processes\, such as diffusion. Understanding diff
 usion processes is crucial to unravel the complex underlying physical and 
 biological mechanisms governing them. This involves extracting meaningful 
 parameters from the analysis of stochastic trajectories described by track
 ed particles. However\, accurately capturing and analyzing the trajectorie
 s presents multiple challenges\, stemming from the combination of their ra
 ndom nature\, complex dynamics\, and experimental drawbacks\, such as nois
 e. We develop machine learning algorithms to accurately extract such param
 eters\, even when they vary with time\, and demonstrate their applicabilit
 y in experimental scenarios. Furthermore\, we apply similar techniques to 
 study the diffusion of internet users browsing an e-commerce website\, pre
 dicting their likelihood to make a purchase before closing the session.\n&
 nbsp\;\nWednesday April 24\, 11:00 h. ICFO Auditorium &nbsp\;\nThesis Dire
 ctor: Prof Dr. Maciej Lewenstein and Dr. Gorka Mu&ntilde\;oz Gill
DTSTAMP:20260407T072832Z
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