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class="nodeLabel">+__init__(user_id: int, name: str, email: str) : -> None</span></div></foreignObject></g></g><g transform="translate(247.27734375, 335.5)" id="classId-UserProfile-1" class="node default"><rect height="147.5" width="478.5546875" y="-73.75" x="-239.27734375" class="outer title-state"/><line y2="-43.25" y1="-43.25" x2="239.27734375" x1="-239.27734375" class="divider"/><line y2="40.25" y1="40.25" x2="239.27734375" x1="-239.27734375" class="divider"/><g class="label"><foreignObject height="0" width="0"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel"></span></div></foreignObject><foreignObject transform="translate( -41.82421875, -66.25)" height="18.5" width="83.6484375" class="classTitle"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">UserProfile</span></div></foreignObject><foreignObject transform="translate( -231.77734375, -31.75)" height="18.5" width="84.890625"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+int user_id</span></div></foreignObject><foreignObject transform="translate( -231.77734375, -9.25)" height="18.5" width="126.265625"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+dict preferences</span></div></foreignObject><foreignObject transform="translate( -231.77734375, 13.25)" height="18.5" width="89.7734375"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+dict history</span></div></foreignObject><foreignObject transform="translate( -231.77734375, 47.75)" height="18.5" width="463.5546875"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+__init__(user_id: int, preferences: dict, history: dict) : -> None</span></div></foreignObject></g></g><g transform="translate(1479.5546875, 104.25)" id="classId-Content-2" class="node default"><rect height="192.5" width="740.359375" y="-96.25" x="-370.1796875" class="outer title-state"/><line y2="-65.75" y1="-65.75" x2="370.1796875" x1="-370.1796875" class="divider"/><line y2="62.75" y1="62.75" x2="370.1796875" x1="-370.1796875" class="divider"/><g class="label"><foreignObject height="0" width="0"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel"></span></div></foreignObject><foreignObject transform="translate( -29.80859375, -88.75)" height="18.5" width="59.6171875" class="classTitle"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">Content</span></div></foreignObject><foreignObject transform="translate( -362.6796875, -54.25)" height="18.5" width="110.1328125"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+int content_id</span></div></foreignObject><foreignObject transform="translate( -362.6796875, -31.75)" height="18.5" width="62.9453125"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+str title</span></div></foreignObject><foreignObject transform="translate( -362.6796875, -9.25)" height="18.5" width="112.21875"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+str description</span></div></foreignObject><foreignObject transform="translate( -362.6796875, 13.25)" height="18.5" width="94.375"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+str category</span></div></foreignObject><foreignObject transform="translate( -362.6796875, 35.75)" height="18.5" width="173.546875"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+DateTime published_at</span></div></foreignObject><foreignObject transform="translate( -362.6796875, 70.25)" height="18.5" width="725.359375"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+__init__(content_id: int, title: str, description: str, category: str, published_at: DateTime) : -> None</span></div></foreignObject></g></g><g transform="translate(759.69921875, 335.5)" id="classId-CollaborativeFilteringModel-3" class="node default"><rect height="170" width="446.2890625" y="-85" x="-223.14453125" class="outer title-state"/><line y2="-54.5" y1="-54.5" x2="223.14453125" x1="-223.14453125" class="divider"/><line y2="6.5" y1="6.5" x2="223.14453125" x1="-223.14453125" class="divider"/><g class="label"><foreignObject height="0" width="0"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel"></span></div></foreignObject><foreignObject transform="translate( -103.203125, -77.5)" height="18.5" width="206.40625" class="classTitle"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">CollaborativeFilteringModel</span></div></foreignObject><foreignObject transform="translate( -215.64453125, -43)" height="18.5" width="123.28125"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+DataFrame data</span></div></foreignObject><foreignObject transform="translate( -215.64453125, -20.5)" height="18.5" width="116.7421875"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+str model_type</span></div></foreignObject><foreignObject transform="translate( -215.64453125, 14)" height="18.5" width="394.46875"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+__init__(data: DataFrame, model_type: str) : -> None</span></div></foreignObject><foreignObject transform="translate( -215.64453125, 36.5)" height="18.5" width="107.828125"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+fit() : -> None</span></div></foreignObject><foreignObject transform="translate( -215.64453125, 59)" height="18.5" width="431.2890625"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+predict(user_id: int, n_recommendations: int) : -> List[int]</span></div></foreignObject></g></g><g transform="translate(2378.583984375, 335.5)" id="classId-ContentBasedFilteringModel-4" class="node default"><rect height="170" width="446.2890625" y="-85" x="-223.14453125" class="outer title-state"/><line y2="-54.5" y1="-54.5" x2="223.14453125" x1="-223.14453125" class="divider"/><line y2="6.5" y1="6.5" x2="223.14453125" x1="-223.14453125" class="divider"/><g class="label"><foreignObject height="0" width="0"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel"></span></div></foreignObject><foreignObject transform="translate( -105.3359375, -77.5)" height="18.5" width="210.671875" class="classTitle"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">ContentBasedFilteringModel</span></div></foreignObject><foreignObject transform="translate( -215.64453125, -43)" height="18.5" width="123.28125"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+DataFrame data</span></div></foreignObject><foreignObject transform="translate( -215.64453125, -20.5)" height="18.5" width="116.7421875"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+str model_type</span></div></foreignObject><foreignObject transform="translate( -215.64453125, 14)" height="18.5" width="394.46875"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+__init__(data: DataFrame, model_type: str) : -> None</span></div></foreignObject><foreignObject transform="translate( -215.64453125, 36.5)" height="18.5" width="107.828125"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+fit() : -> None</span></div></foreignObject><foreignObject transform="translate( -215.64453125, 59)" height="18.5" width="431.2890625"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+predict(user_id: int, n_recommendations: int) : -> List[int]</span></div></foreignObject></g></g><g transform="translate(711.607421875, 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user_id</span></div></foreignObject><foreignObject transform="translate( -500.734375, -31.75)" height="18.5" width="178.1015625"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+UserProfile user_profile</span></div></foreignObject><foreignObject transform="translate( -500.734375, -9.25)" height="18.5" width="277.859375"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+CollaborativeFilteringModel cf_model</span></div></foreignObject><foreignObject transform="translate( -500.734375, 13.25)" height="18.5" width="289.8125"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+ContentBasedFilteringModel cbf_model</span></div></foreignObject><foreignObject transform="translate( -500.734375, 47.75)" height="18.5" width="1001.46875"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+__init__(user_id: int, user_profile: UserProfile, cf_model: CollaborativeFilteringModel, cbf_model: ContentBasedFilteringModel) : -> None</span></div></foreignObject><foreignObject transform="translate( -500.734375, 70.25)" height="18.5" width="445.625"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+get_recommendations(n_recommendations: int) : -> List[int]</span></div></foreignObject></g></g><g transform="translate(448.484375, 775.5)" id="classId-ExperimentationPlatform-6" class="node default"><rect height="125" width="576.8828125" y="-62.5" x="-288.44140625" class="outer title-state"/><line y2="-32" y1="-32" x2="288.44140625" x1="-288.44140625" class="divider"/><line y2="6.5" y1="6.5" x2="288.44140625" x1="-288.44140625" class="divider"/><g class="label"><foreignObject height="0" width="0"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel"></span></div></foreignObject><foreignObject transform="translate( -94.734375, -55)" height="18.5" width="189.46875" class="classTitle"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">ExperimentationPlatform</span></div></foreignObject><foreignObject transform="translate( -280.94140625, -20.5)" height="18.5" width="258.0546875"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+List[Recommender] recommenders</span></div></foreignObject><foreignObject transform="translate( -280.94140625, 14)" height="18.5" width="404.3203125"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+__init__(recommenders: List[Recommender]) : -> None</span></div></foreignObject><foreignObject transform="translate( -280.94140625, 36.5)" height="18.5" width="561.8828125"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+run_experiment(user_id: int, n_recommendations: int) : -> Dict[str, List[int]]</span></div></foreignObject></g></g><g transform="translate(974.73046875, 775.5)" id="classId-Optimization-7" class="node default"><rect height="125" width="375.609375" y="-62.5" x="-187.8046875" class="outer title-state"/><line y2="-32" y1="-32" x2="187.8046875" x1="-187.8046875" class="divider"/><line y2="6.5" y1="6.5" x2="187.8046875" x1="-187.8046875" class="divider"/><g class="label"><foreignObject height="0" width="0"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel"></span></div></foreignObject><foreignObject transform="translate( -48.40234375, -55)" height="18.5" width="96.8046875" class="classTitle"><div style="display: inline-block; white-space: nowrap;" 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default"><rect height="147.5" width="447.8125" y="-73.75" x="-223.90625" class="outer title-state"/><line y2="-43.25" y1="-43.25" x2="223.90625" x1="-223.90625" class="divider"/><line y2="40.25" y1="40.25" x2="223.90625" x1="-223.90625" class="divider"/><g class="label"><foreignObject height="0" width="0"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel"></span></div></foreignObject><foreignObject transform="translate( -35.5234375, -66.25)" height="18.5" width="71.046875" class="classTitle"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">Feedback</span></div></foreignObject><foreignObject transform="translate( -216.40625, -31.75)" height="18.5" width="84.890625"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+int user_id</span></div></foreignObject><foreignObject transform="translate( -216.40625, -9.25)" height="18.5" width="110.1328125"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+int content_id</span></div></foreignObject><foreignObject transform="translate( -216.40625, 13.25)" height="18.5" width="75.1640625"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+int rating</span></div></foreignObject><foreignObject transform="translate( -216.40625, 47.75)" height="18.5" width="432.8125"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+__init__(user_id: int, content_id: int, rating: int) : -> None</span></div></foreignObject></g></g><g transform="translate(1400.33984375, 775.5)" id="classId-Monitoring-9" class="node default"><rect height="125" width="375.609375" y="-62.5" x="-187.8046875" class="outer title-state"/><line y2="-32" 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white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+__init__(recommender: Recommender) : -> None</span></div></foreignObject><foreignObject transform="translate( -180.3046875, 36.5)" height="18.5" width="208.328125"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">+generate_report() : -> None</span></div></foreignObject></g></g><g transform="translate(2122.76171875, 104.25)" id="classId-Advertising-10" class="node default"><rect height="125" width="446.0546875" y="-62.5" x="-223.02734375" class="outer title-state"/><line y2="-32" y1="-32" x2="223.02734375" x1="-223.02734375" class="divider"/><line y2="29" y1="29" x2="223.02734375" x1="-223.02734375" class="divider"/><g class="label"><foreignObject height="0" width="0"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel"></span></div></foreignObject><foreignObject 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int, target_audience: str) : -> None</span></div></foreignObject></g></g><g transform="translate(1987.220703125, 335.5)" id="classId-Privacy-11" class="node default"><rect height="125" width="236.4375" y="-62.5" x="-118.21875" class="outer title-state"/><line y2="-32" y1="-32" x2="118.21875" x1="-118.21875" class="divider"/><line y2="6.5" y1="6.5" x2="118.21875" x1="-118.21875" class="divider"/><g class="label"><foreignObject height="0" width="0"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel"></span></div></foreignObject><foreignObject transform="translate( -27.34375, -55)" height="18.5" width="54.6875" class="classTitle"><div style="display: inline-block; white-space: nowrap;" xmlns="http://www.w3.org/1999/xhtml"><span class="nodeLabel">Privacy</span></div></foreignObject><foreignObject transform="translate( -110.71875, -20.5)" height="18.5" width="75.171875"><div style="display: inline-block; white-space: nowrap;" 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