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DTSTART:20230101T000000
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DTSTART;TZID=UTC:20231113T080000
DTEND;TZID=UTC:20231123T170000
DTSTAMP:20260711T043113
CREATED:20231019T101825Z
LAST-MODIFIED:20231110T134923Z
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SUMMARY:Natural Language Processing\, Julien Boelaert (CERAPS\, Université de Lille)
DESCRIPTION:  \n\n\n\n  \n  \nSCHEDULE\n  \nMonday\n  \n13th November 2023 \n20th November 2023\n  \nFrom 13:00 to 16:15\n  \nRoom 2033\n\n\n  \nThursday\n  \n16th November 2023 \n23rd November 2023\n  \nFrom 13:00 to 16:15\n  \nRoom 2033\n\n\n\nAims and objectives\nThe aim of this course is to provide an introduction to the main contemporary methods for natural language processing\, and to illustrate them with recent uses of text as data in social sciences. \nNatural language processing has made giant steps during the last decade\, as illustrated in 2023 by the resounding popularity of chatGPT. In addition\, text corpora have become increasingly available for exploitation by social scientists\, be it through digitization of originally paper sources (eg. Parliamentary sessions transcripts\, printed newspapers\, books\, historical sources\, …) or audio sources (through automatic transcription)\, or through the advent of natively digital sources (from social media\, online newspapers\, …). \nThe course will start with the standard (aka pre-neural) methods of the late 20th century\, based on large document-feature matri-ces. We will then cover more recent developments: word embeddings (for improved NLP\, or studies about bias in text corpora)\, topic modeling with Latent Dirichlet Allocation (unsupervised detection of topics)\, and Transformer models (current state of the art\, BERT- and GPT-like models). Each session will comprise a theoretical lecture\, and applied examples on R or python. \n\n
URL:https://crest.science/event/natural-language-processing-julien-boelaert-ceraps-universite-de-lille/
LOCATION:2033
CATEGORIES:Doctoral Courses,Sociology
ORGANIZER;CN="Etienne%20Ollion":MAILTO:etienne.ollion@ensae.fr
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DTSTART;TZID=Europe/Helsinki:20231122T121500
DTEND;TZID=Europe/Helsinki:20231122T121500
DTSTAMP:20260711T043113
CREATED:20230726T100926Z
LAST-MODIFIED:20231117T073543Z
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SUMMARY:Margarita KIRNEVA (CREST)  -  “Informing to Divert Attention”
DESCRIPTION:Séminaire Microéconomie : Tous les mercredis\n Heure : 12h15 – 13h30 \nDate : 22/11/2023 \nSalle : 3001 \nMargarita KIRNEVA (CREST) – “Informing to Divert Attention” – \nAbstract : I study a multidimensional Sender-Receiver game in which Receiver can acquire limited information after observing the Sender’s signal. Depending on the parameters describing the conflict of interest between Sender and Receiver\, I characterise optimal information disclosure and the information acquired by Receiver as a response. I show that in the case of partial conflict of interests (aligned on some dimensions and misaligned on others) Sender uses the multidimensionality of the environment to divert Receiver’s attention away from the dimensions of misalignment of interests. Moreover\, there is negative value of information in the sense that Receiver would be better off if she could commit not to extract private information or to have access to information of lower quality. I present applications to informational lobbying and consumer’s choice. \n  \nOrganisateurs : \nJulien COMBE (Pôle d’Economie du CREST) \n​​Yves Le YAOUNQ (Pôle d’Economie du CREST) \n​​Matias NUNEZ (Pôle d’Economie du CREST) \nCommanditaires :\n CREST \n
URL:https://crest.science/event/margarita-kirneva-crest-tba/
CATEGORIES:Microeconomics,Seminars
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