</noscript> <div id="header" class="row"> <nav class="top-bar eyebrow show-for-medium-up" data-topbar data-options="is_hover: false"> <section class="top-bar-section"> <div id="skiptocontent"><a href="#SkipTarget">skip to main content</a></div> <ul class="right"> <li><a href="//dl.acm.org/" title="Digital Library">Digital Library</a></li> <li><a href="//cacm.acm.org/" title="CACM">CACM</a></li> <li><a href="//queue.acm.org/" title="Queue">Queue</a></li> <li><a href="//technews.acm.org/" title="TechNews">TechNews</a></li> <li><a href="//learning.acm.org/" title="Learning Center">Learning Center</a></li> <li><a href="https://jobs.acm.org/" title="Career Center">Career Center</a></li> </ul> </section> </nav> <div class="clearfix utilities-area"> <div class="logo-section"> <div class="navbar-header show-for-large-up"> <a class="navbar-brand" href="https://www.acm.org"> <img alt="ACM Logo" class="img-responsive" title="Home" src="/binaries/content/gallery/global/top-menu/acm_logo_tablet.svg"> </a> </div> <div class="navbar-header hide-for-large-up"> <a href="/"> <img alt="ACM Logo" class="img-responsive hide-for-large-up" title="Home" src="/binaries/content/gallery/global/top-menu/acm_logo_mobile.svg"> </a> </div> </div> <div id="acm-description" class="column large-5 show-for-large-up"> <div> ACM Europe Council Site </div> </div> <div id="ctas-and-search" class="column large-5 medium-6 no-pad-left ctas-and-search"> <ul class="block-grid right"> <li><a href="/">Home</a></li> <li><a href="https://www.acm.org/membership/join-acm">Join</a></li> <li><a href="https://www.acm.org/membership/myacm-at-a-glance">myACM</a></li> <li class="hide-for-small"> <form class="acm-search-form" id="form_1"> <label for="input_1"> <span class="visually-hidden">Search Input</span> </label> <input type="text" name="q" id="input_1" class="acm-searchbox-input st-default-search-input" /> <label for="search-site_1" class="toggle"> <span class="visually-hidden">Search Submit</span> <i class="fa fa-search left"></i> <input type="button" class="acm-searchbox-submit left" value="Search" name="search-site_1" id="search-site_1" /> </label> </form> </li> </ul> </div> </div> <script type="text/javascript"> (function(w,d,t,u,n,s,e){w['SwiftypeObject']=n;w[n]=w[n]||function(){ (w[n].q=w[n].q||[]).push(arguments);};s=d.createElement(t); e=d.getElementsByTagName(t)[0];s.async=1;s.src=u;e.parentNode.insertBefore(s,e); })(window,document,'script','//s.swiftypecdn.com/install/v2/st.js','_st'); _st('install','yuCYFBxneyZpx1QyWp8C','2.0.0'); </script> <nav class="top-bar main-nav" data-topbar data-options="is_hover: false"> <ul class="title-area"> <li class="toggle-topbar menu-icon"><a href="/#"><span></span> </a></li> </ul> <section id="mobile-nav-topbar" class="top-bar-section"> <div class="mobile-links"> <div class="btn-group"> <a class="btn btn-primary" role="button" href="/">Home</a> <a class="btn btn-primary" role="button" href="https://www.acm.org/membership/join-acm">Join</a> <a class="btn btn-primary" role="button" href="https://www.acm.org/membership/myacm-at-a-glance">myACM</a> </div> <div class="mobile-search"> <form class="acm-search-form" id="mobile_form_1"> <i class="fa fa-search left"></i> <label class for="search_mobile_1">Search</label> <input type="text" id="search_mobile_1" class="acm-searchbox-input st-default-search-input" name="q" /> </form> </div> </div> <ul> <li class="has-dropdown not-click"><a href="#">Data Science 2019</a> <div class="dropdown simple clearfix"> <ul class="infonav clearfix"> <li class="infonav__linkList clearfix"> <a href="/seasonal-schools/data-science/2019" class="first">2019</a> <ul class="infonav__linkList-list clearfix"> </ul> </li> </ul> </div> </li> <li class="has-dropdown not-click"><a href="#">About</a> <div class="dropdown simple clearfix"> <ul class="infonav clearfix"> <li class="infonav__linkList clearfix"> <a href="/seasonal-schools/data-science/2019/2019-acm-summer-school" class="first">2019 ACM Summer School</a> <ul class="infonav__linkList-list clearfix"> <li><a href="/seasonal-schools/data-science/2019/important-dates" title="Important Dates">Important Dates</a></li> <li><a href="/seasonal-schools/data-science/2019/organizers" title="Organizers">Organizers</a></li> <li><a href="/seasonal-schools/data-science/2019/committee" title="Committee">Committee</a></li> </ul> </li> </ul> </div> </li> <li class="has-dropdown not-click"><a href="#">Participate</a> <div class="dropdown simple clearfix"> <ul class="infonav clearfix"> <li class="infonav__linkList clearfix"> <a href="/seasonal-schools/data-science/2019/participate" class="first">Participate</a> <ul class="infonav__linkList-list clearfix"> <li><a href="https://services.acm.org/summer_school/summer_school.cfm" title="Apply">Apply</a></li> <li><a href="/seasonal-schools/data-science/2019/terms-requirements" title="Fees, Terms & Requirements">Fees, Terms & Requirements</a></li> </ul> </li> </ul> </div> </li> <li class="has-dropdown not-click"><a href="#">Speakers</a> <div class="dropdown simple clearfix"> <ul class="infonav clearfix"> <li class="infonav__linkList clearfix"> <a href="/seasonal-schools/data-science/2019/speakers" class="first">Speakers</a> <ul class="infonav__linkList-list clearfix"> </ul> </li> </ul> </div> </li> <li class="has-dropdown not-click"><a href="#">Courses</a> <div class="dropdown simple clearfix"> <ul class="infonav clearfix"> <li class="infonav__linkList clearfix"> <a href="/seasonal-schools/data-science/2019/courses" class="first">Courses</a> <ul class="infonav__linkList-list clearfix"> </ul> </li> </ul> </div> </li> <li class="has-dropdown not-click"><a href="#">Daily schedule</a> <div class="dropdown simple clearfix"> <ul class="infonav clearfix"> <li class="infonav__linkList clearfix"> <a href="/seasonal-schools/data-science/2019/daily-schedule" class="first">Daily Schedule</a> <ul class="infonav__linkList-list clearfix"> </ul> </li> </ul> </div> </li> <li class="has-dropdown not-click"><a href="#">Venue</a> <div class="dropdown simple clearfix"> <ul class="infonav clearfix"> <li class="infonav__linkList clearfix"> <a href="/seasonal-schools/data-science/2019/venue-information" class="first">Venue</a> <ul class="infonav__linkList-list clearfix"> </ul> </li> </ul> </div> </li> <li class="has-dropdown not-click"><a href="#">Sponsors</a> <div class="dropdown simple clearfix"> <ul class="infonav clearfix"> <li class="infonav__linkList clearfix"> <a href="/seasonal-schools/data-science/2019/sponsors" class="first">Sponsors</a> <ul class="infonav__linkList-list clearfix"> </ul> </li> </ul> </div> </li> <li class="has-dropdown not-click"><a href="#">Social activities</a> <div class="dropdown simple clearfix"> <ul class="infonav clearfix"> <li class="infonav__linkList clearfix"> <a href="/seasonal-schools/data-science/2019/social-activities" class="first">Social Activities</a> <ul class="infonav__linkList-list clearfix"> </ul> </li> </ul> </div> </li> <li class="has-dropdown not-click"><a href="#">Explore Athens</a> <div class="dropdown simple clearfix"> <ul class="infonav clearfix"> <li class="infonav__linkList clearfix"> <a href="/seasonal-schools/data-science/2019/explore-athens" class="first">Explore Athens</a> <ul class="infonav__linkList-list clearfix"> </ul> </li> </ul> </div> </li> <li class="has-dropdown not-click"><a href="#">All Years</a> <div class="dropdown simple clearfix"> <ul class="infonav clearfix"> <li class="infonav__linkList clearfix"> <a href="/seasonal-schools/data-science/2023" class="first">2023</a> <ul class="infonav__linkList-list clearfix"> </ul> </li> </ul> </div> </li> </ul> </section> </nav> <nav class="section-nav section-nav--simple-nav"> <div class="section-nav-wrapper"> <ul> <li> <a href="/seasonal-schools/data-science/2019" title="2019">2019</a><br/> </li> </ul> </div> <div class="section-nav-wrapper"> <ul> <li> <a href="/seasonal-schools/data-science/2019/2019-acm-summer-school" title="2019 ACM Summer School">2019 ACM Summer School</a><br/> </li> <li> <a href="/seasonal-schools/data-science/2019/important-dates" title="Important Dates">Important Dates</a><br/> </li> <li> <a href="/seasonal-schools/data-science/2019/organizers" title="Organizers">Organizers</a><br/> </li> <li> <a href="/seasonal-schools/data-science/2019/committee" title="Committee">Committee</a><br/> </li> </ul> </div> <div class="section-nav-wrapper"> <ul> <li> <a href="https://services.acm.org/summer_school/summer_school.cfm" title="Apply">Apply</a><br/> </li> <li> <a href="/seasonal-schools/data-science/2019/terms-requirements" title="Fees, Terms & Requirements">Fees, Terms & Requirements</a><br/> </li> <li> <a href="/seasonal-schools/data-science/2019/participate" title="Participate">Participate</a><br/> </li> </ul> </div> <div class="section-nav-wrapper"> <ul> <li> <a href="/seasonal-schools/data-science/2019/speakers" title="Speakers">Speakers</a><br/> </li> </ul> </div> <div class="section-nav-wrapper"> <ul> <li> <a href="/seasonal-schools/data-science/2019/courses" title="Courses">Courses</a><br/> </li> </ul> </div> <div class="section-nav-wrapper"> <ul> <li> <a href="/seasonal-schools/data-science/2019/daily-schedule" title="Daily Schedule">Daily Schedule</a><br/> </li> </ul> </div> <div class="section-nav-wrapper"> <ul> <li> <a href="/seasonal-schools/data-science/2019/venue-information" title="Venue">Venue</a><br/> </li> </ul> </div> <div class="section-nav-wrapper"> <ul> <li> <a href="/seasonal-schools/data-science/2019/sponsors" title="Sponsors">Sponsors</a><br/> </li> </ul> </div> <div class="section-nav-wrapper"> <ul> <li> <a href="/seasonal-schools/data-science/2019/social-activities" title="Social Activities">Social Activities</a><br/> </li> </ul> </div> <div class="section-nav-wrapper"> <ul> <li> <a href="/seasonal-schools/data-science/2019/explore-athens" title="Explore Athens">Explore Athens</a><br/> </li> </ul> </div> <div class="section-nav-wrapper"> <ul> <li> <a href="/seasonal-schools/data-science/2023" title="2023">2023</a><br/> </li> <li> <a href="/seasonal-schools/data-science/2019" title="2019">2019</a><br/> </li> <li> <a href="/seasonal-schools/data-science/2018" title="2018">2018</a><br/> </li> <li> <a href="/seasonal-schools/data-science/2017" title="2017">2017</a><br/> </li> </ul> </div> </nav> </div> <div id="main"> <div class="article" id="maincontent" tabindex="-1"> <div class="row"> <div class="columns small-12"> <ul class="breadcrumbs"> <li><a href="/">Home</a></li> <li><a href="/seasonal-schools">Seasonal Schools</a></li> <li><a href="/seasonal-schools/data-science">Data Science</a></li> <li><a href="/seasonal-schools/data-science/2019">2019</a></li> <li class="current"> <a href="/seasonal-schools/data-science/2019/data-and-algorithmic-bias-in-the-web">Data and Algorithmic Bias in the Web</a> </li> </ul> </div> </div> <article class="has-edit-button" id="SkipTarget" tabindex="-1"> <div class="row"> <div class="columns small-12"> <h1>Data and Algorithmic Bias in the Web</h1> </div> </div> <div class="row"> <div class="columns large-8 medium-8 small-12 blocks"> <div class="clearfix"> <h5 id="h-ricardo-baeza-yates-|-friday,-july-12"><strong>Ricardo Baeza-Yates | Friday, July 12</strong></h5> <h6 id="h-cto-of-ntent-and-director-of-graduate-data-science-programs-(part-time)-of-northeastern-university">CTO of NTENT and Director of Graduate Data Science Programs (part-time) of Northeastern University</h6> <p><img alt style="float:right; margin-left: 1rem;" src="/binaries/content/gallery/europe/seasonal-schools/ricardo-baeza-yates.png" />The Web is the most powerful communication medium and the largest public data repository that humankind has created. Its content ranges from great reference sources such as Wikipedia to ugly fake news. Indeed, social (digital) media is just an amplifying mirror of ourselves. Hence, the main challenge of search engines and other websites that rely on web data is to assess the quality of such data. However, as all people has their own biases, web content as well as our web interactions are tainted with many biases. Data bias includes redundancy and spam, while interaction bias includes activity and presentation bias. In addition, sometimes algorithms add bias, particularly in the context of search and recommendation systems. As bias generates bias, we stress the importance of debiasing data as well as using the context and other techniques such as explore & exploit, to break the filter bubble. The main goal of this talk is to make people aware of the different biases that affect all of us on the Web. Awareness is the first step to be able to fight and reduce the vicious cycle of web bias. For more details see the article of same title in Communications of ACM, June 2018.</p></div> </div> <div class="columns large-4 medium-4 small-12"> <div class="cta shadowed" data-equalizer-watch> <div class="row" style="margin: inherit;"> <div class="medium-12 columns d-table top-cta"> <div class="text-wrap"> <h2 class><a href="https://twitter.com/search?q=%23acmsummerschool&src=tyah" target="_blank">Follow the latest tweets</a></h2> <div class="dek"> </div> </div> <a href="https://twitter.com/search?q=%23acmsummerschool&src=tyah" target="_blank"><img src="/binaries/ctaimagelarge/content/gallery/acm/ctas/europe-site/summer-schools/twitter-acm.png" alt /></a></div> </div> </div><div class="cta shadowed" data-equalizer-watch> <div class="row" style="margin: inherit;"> <div class="medium-12 columns d-table top-cta"> <div class="text-wrap"> <h2 class>Meet the Speakers</h2> <div class="dek"> </div> </div> <img src="/binaries/ctaimagelarge/content/gallery/acm/ctas/europe-site/summer-schools/2019-speaker-headshots.jpg" alt /></div> </div> </div><div class="cta shadowed" data-equalizer-watch> <div class="row" style="margin: inherit;"> <div class="medium-12 columns d-table top-cta"> <div class="text-wrap"> <h2 class>Contact Us</h2> <div class="dek"> <p>Reach out to us and we will respond as soon as possible.</p> <p>You can send us an email to <a href="/cdn-cgi/l/email-protection#c9a0a7afa689babca4a4acbbbaaaa1a6a6a5e7a8aaa4e7a6bbae"><span class="__cf_email__" data-cfemail="026b6c646d4271776f6f677071616a6d6d6e2c63616f2c6d7065">[email protected]</span></a>.</p></div> </div> </div> </div> </div></div> </div> </article> </div> </div> <div class="row"> <footer> <nav> <div class="footer-nav"> <ul class="footer-nav-lists"> <li> About ACM</li> <li><a href="https://www.acm.org/about-acm" title="About ACM">About ACM</a></li> <li><a href="https://www.acm.org/about-acm/get-involved" title="About ACM">Volunteer</a></li> </ul> <ul class="footer-nav-lists"> <li> Membership</li> <li><a href="https://www.acm.org/membership/join-acm" title="Membership">Join ACM</a></li> <li><a href="https://www.acm.org/membership/acm-membership-renewal" title="Membership">Renew My Membership</a></li> <li><a href="https://www.acm.org/membership/membership-options" title="Membership">Membership Options</a></li> <li><a href="https://www.acm.org/membership/membership-benefits" title="Membership">Membership Benefits</a></li> <li><a href="https://www.acm.org/membership/myacm-at-a-glance" title="Membership">myACM Sign-In</a></li> </ul> <ul class="footer-nav-lists"> <li> Publications</li> <li><a href="https://www.acm.org/publications" title="Publications">About Publications</a></li> <li><a href="https://www.acm.org/publications/digital-library" title="Publications">Digital Library</a></li> <li><a href="https://authors.acm.org/" title="Publications">Submit A Paper</a></li> </ul> <ul class="footer-nav-lists"> <li> Chapters</li> <li><a href="https://www.acm.org/chapters/chapter-administrative-interface" title="Chapters">Chapter Administrative Interface</a></li> <li><a href="https://www.acm.org/chapters/local-activities" title="Chapters">Chapter Activities Calendar</a></li> <li><a href="https://www.acm.org/chapters/start-chapter" title="Chapters">Start A Chapter</a></li> </ul> <ul class="footer-nav-lists"> <li> Awards</li> <li><a href="https://awards.acm.org" title="Awards">About ACM's Awards</a></li> </ul> <ul class="footer-nav-lists"> <li> Conferences</li> <li><a href="https://www.acm.org/conferences" title="Conferences">ACM's Conferences</a></li> </ul> <ul class="footer-nav-lists"> <li> Code of Ethics</li> <li><a href="https://www.acm.org/code-of-ethics" title="Code of Ethics">ACM's Code of Ethics</a></li> <li><a href="https://www.acm.org/code-of-ethics/enforcement-procedures" title="Code of Ethics">Enforcement Procedures</a></li> </ul> <ul class="footer-nav-lists"> <li> Media Center</li> <li><a href="https://www.acm.org/media-center" title="Media Center">ACM Media Center</a></li> </ul> </div> </nav> <div> <div> <div class="logo_social_group"> <hr/> <img src="/binaries/content/gallery/acm/logos/logo_footer_acm.png" alt="ACM Logo" /> <ul class="footer__social"> <li> <a href="https://www.facebook.com/AssociationForComputingMachinery/" target="_blank"> <img src="/binaries/content/gallery/acm/social-media/icon_facebook.png" alt="Facebook logo" /> </a> </li> <li> <a href="https://twitter.com/theofficialacm" target="_blank"> <img src="/binaries/content/gallery/acm/social-media/icon_x_twitter.png" alt="Twitter logo" /> </a> </li> <li> <a href="https://www.linkedin.com/company/association-for-computing-machinery" target="_blank"> <img src="/binaries/content/gallery/acm/social-media/icon_linkedin.png" alt="LinkedIn logo" /> </a> </li> <li> <a href="https://www.reddit.com/user/TheOfficialACM" target="_blank"> <img src="/binaries/content/gallery/acm/social-media/icon_reddit.png" alt="Reddit logo" /> </a> </li> <li> <a href="https://www.youtube.com/user/TheOfficialACM" target="_blank"> <img src="/binaries/content/gallery/acm/social-media/icon_youtube.png" alt="YouTube logo" /> </a> </li> <li> <a href="https://www.instagram.com/theofficialacm/" target="_blank"> <img src="/binaries/content/gallery/acm/social-media/icon_instagram.png" alt="Instagram" /> </a> </li> <li> <a href="https://www.flickr.com/photos/theofficialacm" target="_blank"> <img src="/binaries/content/gallery/acm/social-media/icon_flickr.png" alt="Flickr" /> </a> </li> <li> <a href="https://mastodon.acm.org/@ACM" target="_blank"> <img src="/binaries/content/gallery/acm/social-media/icon_mastodon.png" alt="Mastodon" /> </a> </li> </ul> </div> </div> </div> <div> <div> <ul class="footer__legal clearfix"> <li><a href="/">Home</a></li> <li><a href="https://www.acm.org">ACM Home</a></li> <li><a href="/sitemap">Sitemap</a></li> <li><a href="https://www.acm.org/about-acm/contact-us">Contact Us</a></li> <li><a href="https://www.acm.org/membership/acm-hq-contact">Member Services</a></li> <li><a href="https://www.acm.org/about-acm/privacy-policy">Privacy Policy</a></li> <li><a href="https://www.acm.org/accessibility">Accessibility</a></li> <li class="footer__copyright">Copyright © 2024, ACM, Inc</li> </ul> </div> </div> </footer> </div> <script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script><script data-cookieconsent="ignore" type="text/javascript" src="/js/acm.js?antiCache=1716999351349"></script> <script src="/js/simple-navigation.js" type="text/javascript"></script> <script>$(document).foundation();</script> <script type="text/javascript" src="//s7.addthis.com/js/300/addthis_widget.js#pubid=ra-5654b74db1437702" async="async"></script> <script async src="https://www.googletagmanager.com/gtag/js?id=UA-42059082-1"></script> <script> window.dataLayer = window.dataLayer || []; function gtag(){ dataLayer.push(arguments); } gtag('js', new Date()); gtag('config', 'UA-42059082-1'); </script> </body> </html>