SlideShare a Scribd company logo
1 of 5
Download to read offline
Progress Report Presentation



                                    www.srcf.ucam.org/~ahh29


                  Recommender Systems
                     for Social Networks
                               Amir H. Hajizamani




                                          twitter.com/amirhhz
A Recommender System?
• Input: social graph
  – Users = nodes
  – Follows = directed edges
• Output: Predictions
  – Edges expected to appear in future
• Challenge: Big, Dynamic Dataset
• Framework ...
  Obtain    Scrub    Explore            Model               Interpret


                        http://www.dataists.com/2010/09/a-taxonomy-of-data-science/
Data: Obtaining and Scrubbing
•                     API
    – JSON response, paging, rate limits
• Python wrapper
    – Proxies
• Crawler
    – Depth-first search
    – Maintain state with
• Storage
    – JSON 
• Scrub until consistent
Recommending
          (Exploring, Modelling & Predicting)

• Basic stats
  – Power law relationships
• Model
  – Social network  homophily
• Recommendations
  – Ranked social similarity
  – Simple metric: Jaccard index
Any good?
• Recommendations on test data
  – Original data with hidden edges
• (later to use temporal snapshots)
• Recall and Precision rates
  – High recall, low precision
• Still work to do!
  – e.g. Use interaction graph

More Related Content

What's hot

Recommender systems
Recommender systemsRecommender systems
Recommender systemsTamer Rezk
 
Interactive Recommender Systems with Netflix and Spotify
Interactive Recommender Systems with Netflix and SpotifyInteractive Recommender Systems with Netflix and Spotify
Interactive Recommender Systems with Netflix and SpotifyChris Johnson
 
Recommendation and Information Retrieval: Two Sides of the Same Coin?
Recommendation and Information Retrieval: Two Sides of the Same Coin?Recommendation and Information Retrieval: Two Sides of the Same Coin?
Recommendation and Information Retrieval: Two Sides of the Same Coin?Arjen de Vries
 
Recommender systems using collaborative filtering
Recommender systems using collaborative filteringRecommender systems using collaborative filtering
Recommender systems using collaborative filteringD Yogendra Rao
 
Buidling large scale recommendation engine
Buidling large scale recommendation engineBuidling large scale recommendation engine
Buidling large scale recommendation engineKeeyong Han
 
Recommender systems: Content-based and collaborative filtering
Recommender systems: Content-based and collaborative filteringRecommender systems: Content-based and collaborative filtering
Recommender systems: Content-based and collaborative filteringViet-Trung TRAN
 
An introduction to Recommender Systems
An introduction to Recommender SystemsAn introduction to Recommender Systems
An introduction to Recommender SystemsDavid Zibriczky
 
Collaborative Filtering
Collaborative FilteringCollaborative Filtering
Collaborative FilteringTayfun Sen
 
From Idea to Execution: Spotify's Discover Weekly
From Idea to Execution: Spotify's Discover WeeklyFrom Idea to Execution: Spotify's Discover Weekly
From Idea to Execution: Spotify's Discover WeeklyChris Johnson
 
Collaborative Filtering using KNN
Collaborative Filtering using KNNCollaborative Filtering using KNN
Collaborative Filtering using KNNŞeyda Hatipoğlu
 
Recommender system introduction
Recommender system   introductionRecommender system   introduction
Recommender system introductionLiang Xiang
 
[Final]collaborative filtering and recommender systems
[Final]collaborative filtering and recommender systems[Final]collaborative filtering and recommender systems
[Final]collaborative filtering and recommender systemsFalitokiniaina Rabearison
 
Similarity & Recommendation - CWI Scientific Meeting - Sep 27th, 2013
Similarity & Recommendation - CWI Scientific Meeting - Sep 27th, 2013Similarity & Recommendation - CWI Scientific Meeting - Sep 27th, 2013
Similarity & Recommendation - CWI Scientific Meeting - Sep 27th, 2013Arjen de Vries
 
Models for Information Retrieval and Recommendation
Models for Information Retrieval and RecommendationModels for Information Retrieval and Recommendation
Models for Information Retrieval and RecommendationArjen de Vries
 
[RIIT 2017] Identifying Grey Sheep Users By The Distribution of User Similari...
[RIIT 2017] Identifying Grey Sheep Users By The Distribution of User Similari...[RIIT 2017] Identifying Grey Sheep Users By The Distribution of User Similari...
[RIIT 2017] Identifying Grey Sheep Users By The Distribution of User Similari...YONG ZHENG
 
Recommendation engines
Recommendation enginesRecommendation engines
Recommendation enginesGeorgian Micsa
 
Recommender Systems! @ASAI 2011
Recommender Systems! @ASAI 2011Recommender Systems! @ASAI 2011
Recommender Systems! @ASAI 2011Ernesto Mislej
 
Introduction to recommendation system
Introduction to recommendation systemIntroduction to recommendation system
Introduction to recommendation systemAravindharamanan S
 

What's hot (20)

Recommender systems
Recommender systemsRecommender systems
Recommender systems
 
Interactive Recommender Systems with Netflix and Spotify
Interactive Recommender Systems with Netflix and SpotifyInteractive Recommender Systems with Netflix and Spotify
Interactive Recommender Systems with Netflix and Spotify
 
Recommendation and Information Retrieval: Two Sides of the Same Coin?
Recommendation and Information Retrieval: Two Sides of the Same Coin?Recommendation and Information Retrieval: Two Sides of the Same Coin?
Recommendation and Information Retrieval: Two Sides of the Same Coin?
 
Recommender systems using collaborative filtering
Recommender systems using collaborative filteringRecommender systems using collaborative filtering
Recommender systems using collaborative filtering
 
Buidling large scale recommendation engine
Buidling large scale recommendation engineBuidling large scale recommendation engine
Buidling large scale recommendation engine
 
Collaborative filtering
Collaborative filteringCollaborative filtering
Collaborative filtering
 
Recommender systems: Content-based and collaborative filtering
Recommender systems: Content-based and collaborative filteringRecommender systems: Content-based and collaborative filtering
Recommender systems: Content-based and collaborative filtering
 
An introduction to Recommender Systems
An introduction to Recommender SystemsAn introduction to Recommender Systems
An introduction to Recommender Systems
 
Collaborative Filtering
Collaborative FilteringCollaborative Filtering
Collaborative Filtering
 
From Idea to Execution: Spotify's Discover Weekly
From Idea to Execution: Spotify's Discover WeeklyFrom Idea to Execution: Spotify's Discover Weekly
From Idea to Execution: Spotify's Discover Weekly
 
Collaborative Filtering using KNN
Collaborative Filtering using KNNCollaborative Filtering using KNN
Collaborative Filtering using KNN
 
Recommender system introduction
Recommender system   introductionRecommender system   introduction
Recommender system introduction
 
[Final]collaborative filtering and recommender systems
[Final]collaborative filtering and recommender systems[Final]collaborative filtering and recommender systems
[Final]collaborative filtering and recommender systems
 
Similarity & Recommendation - CWI Scientific Meeting - Sep 27th, 2013
Similarity & Recommendation - CWI Scientific Meeting - Sep 27th, 2013Similarity & Recommendation - CWI Scientific Meeting - Sep 27th, 2013
Similarity & Recommendation - CWI Scientific Meeting - Sep 27th, 2013
 
Models for Information Retrieval and Recommendation
Models for Information Retrieval and RecommendationModels for Information Retrieval and Recommendation
Models for Information Retrieval and Recommendation
 
[RIIT 2017] Identifying Grey Sheep Users By The Distribution of User Similari...
[RIIT 2017] Identifying Grey Sheep Users By The Distribution of User Similari...[RIIT 2017] Identifying Grey Sheep Users By The Distribution of User Similari...
[RIIT 2017] Identifying Grey Sheep Users By The Distribution of User Similari...
 
Recommendation engines
Recommendation enginesRecommendation engines
Recommendation engines
 
Recommender Systems
Recommender SystemsRecommender Systems
Recommender Systems
 
Recommender Systems! @ASAI 2011
Recommender Systems! @ASAI 2011Recommender Systems! @ASAI 2011
Recommender Systems! @ASAI 2011
 
Introduction to recommendation system
Introduction to recommendation systemIntroduction to recommendation system
Introduction to recommendation system
 

Similar to Project Progress Report - Recommender Systems for Social Networks

A scalable architecture for extracting, aligning, linking, and visualizing mu...
A scalable architecture for extracting, aligning, linking, and visualizing mu...A scalable architecture for extracting, aligning, linking, and visualizing mu...
A scalable architecture for extracting, aligning, linking, and visualizing mu...Craig Knoblock
 
EgoSystem: Presentation to LITA, American Library Association, Nov 8 2014
EgoSystem: Presentation to LITA, American Library Association, Nov 8 2014EgoSystem: Presentation to LITA, American Library Association, Nov 8 2014
EgoSystem: Presentation to LITA, American Library Association, Nov 8 2014James Powell
 
The Analytics Frontier of the Hadoop Eco-System
The Analytics Frontier of the Hadoop Eco-SystemThe Analytics Frontier of the Hadoop Eco-System
The Analytics Frontier of the Hadoop Eco-Systeminside-BigData.com
 
Scalable Similarity-Based Neighborhood Methods with MapReduce
Scalable Similarity-Based Neighborhood Methods with MapReduceScalable Similarity-Based Neighborhood Methods with MapReduce
Scalable Similarity-Based Neighborhood Methods with MapReducesscdotopen
 
Computing Just What You Need: Online Data Analysis and Reduction at Extreme ...
Computing Just What You Need: Online Data Analysis and Reduction  at Extreme ...Computing Just What You Need: Online Data Analysis and Reduction  at Extreme ...
Computing Just What You Need: Online Data Analysis and Reduction at Extreme ...Ian Foster
 
From Python Scikit-learn to Scala Apache Spark—The Road to Uncovering Botnets...
From Python Scikit-learn to Scala Apache Spark—The Road to Uncovering Botnets...From Python Scikit-learn to Scala Apache Spark—The Road to Uncovering Botnets...
From Python Scikit-learn to Scala Apache Spark—The Road to Uncovering Botnets...Databricks
 
Facets and Pivoting for Flexible and Usable Linked Data Exploration
Facets and Pivoting for Flexible and Usable Linked Data ExplorationFacets and Pivoting for Flexible and Usable Linked Data Exploration
Facets and Pivoting for Flexible and Usable Linked Data ExplorationRoberto García
 
Data council sf amundsen presentation
Data council sf    amundsen presentationData council sf    amundsen presentation
Data council sf amundsen presentationTao Feng
 
Apache con big data 2015 magellan
Apache con big data 2015 magellanApache con big data 2015 magellan
Apache con big data 2015 magellanRam Sriharsha
 
Big Data Analysis : Deciphering the haystack
Big Data Analysis : Deciphering the haystack Big Data Analysis : Deciphering the haystack
Big Data Analysis : Deciphering the haystack Srinath Perera
 
Hide the Stack: Toward Usable Linked Data
Hide the Stack:Toward Usable Linked DataHide the Stack:Toward Usable Linked Data
Hide the Stack: Toward Usable Linked Dataaba-sah
 
Wimmics Research Team 2015 Activity Report
Wimmics Research Team 2015 Activity ReportWimmics Research Team 2015 Activity Report
Wimmics Research Team 2015 Activity ReportFabien Gandon
 
Lec 1 integrating data science and data analytics in various research thrust
Lec 1 integrating data science and data analytics in various research thrustLec 1 integrating data science and data analytics in various research thrust
Lec 1 integrating data science and data analytics in various research thrustMenchita Falcutila Dumlao
 
Strata sf - Amundsen presentation
Strata sf - Amundsen presentationStrata sf - Amundsen presentation
Strata sf - Amundsen presentationTao Feng
 
Spark summit europe 2015 magellan
Spark summit europe 2015 magellanSpark summit europe 2015 magellan
Spark summit europe 2015 magellanRam Sriharsha
 
Using SparkML to Power a DSaaS (Data Science as a Service) with Kiran Muglurm...
Using SparkML to Power a DSaaS (Data Science as a Service) with Kiran Muglurm...Using SparkML to Power a DSaaS (Data Science as a Service) with Kiran Muglurm...
Using SparkML to Power a DSaaS (Data Science as a Service) with Kiran Muglurm...Databricks
 
Magellen: Geospatial Analytics on Spark by Ram Sriharsha
Magellen: Geospatial Analytics on Spark by Ram SriharshaMagellen: Geospatial Analytics on Spark by Ram Sriharsha
Magellen: Geospatial Analytics on Spark by Ram SriharshaSpark Summit
 

Similar to Project Progress Report - Recommender Systems for Social Networks (20)

A scalable architecture for extracting, aligning, linking, and visualizing mu...
A scalable architecture for extracting, aligning, linking, and visualizing mu...A scalable architecture for extracting, aligning, linking, and visualizing mu...
A scalable architecture for extracting, aligning, linking, and visualizing mu...
 
EgoSystem: Presentation to LITA, American Library Association, Nov 8 2014
EgoSystem: Presentation to LITA, American Library Association, Nov 8 2014EgoSystem: Presentation to LITA, American Library Association, Nov 8 2014
EgoSystem: Presentation to LITA, American Library Association, Nov 8 2014
 
The Analytics Frontier of the Hadoop Eco-System
The Analytics Frontier of the Hadoop Eco-SystemThe Analytics Frontier of the Hadoop Eco-System
The Analytics Frontier of the Hadoop Eco-System
 
Scalable Similarity-Based Neighborhood Methods with MapReduce
Scalable Similarity-Based Neighborhood Methods with MapReduceScalable Similarity-Based Neighborhood Methods with MapReduce
Scalable Similarity-Based Neighborhood Methods with MapReduce
 
Computing Just What You Need: Online Data Analysis and Reduction at Extreme ...
Computing Just What You Need: Online Data Analysis and Reduction  at Extreme ...Computing Just What You Need: Online Data Analysis and Reduction  at Extreme ...
Computing Just What You Need: Online Data Analysis and Reduction at Extreme ...
 
From Python Scikit-learn to Scala Apache Spark—The Road to Uncovering Botnets...
From Python Scikit-learn to Scala Apache Spark—The Road to Uncovering Botnets...From Python Scikit-learn to Scala Apache Spark—The Road to Uncovering Botnets...
From Python Scikit-learn to Scala Apache Spark—The Road to Uncovering Botnets...
 
Bertenthal
BertenthalBertenthal
Bertenthal
 
Facets and Pivoting for Flexible and Usable Linked Data Exploration
Facets and Pivoting for Flexible and Usable Linked Data ExplorationFacets and Pivoting for Flexible and Usable Linked Data Exploration
Facets and Pivoting for Flexible and Usable Linked Data Exploration
 
Data council sf amundsen presentation
Data council sf    amundsen presentationData council sf    amundsen presentation
Data council sf amundsen presentation
 
Apache con big data 2015 magellan
Apache con big data 2015 magellanApache con big data 2015 magellan
Apache con big data 2015 magellan
 
Big Data Analysis : Deciphering the haystack
Big Data Analysis : Deciphering the haystack Big Data Analysis : Deciphering the haystack
Big Data Analysis : Deciphering the haystack
 
Hide the Stack: Toward Usable Linked Data
Hide the Stack:Toward Usable Linked DataHide the Stack:Toward Usable Linked Data
Hide the Stack: Toward Usable Linked Data
 
CINET: A CyberInfrastructure for Network Science
CINET: A CyberInfrastructure for Network ScienceCINET: A CyberInfrastructure for Network Science
CINET: A CyberInfrastructure for Network Science
 
Wimmics Research Team 2015 Activity Report
Wimmics Research Team 2015 Activity ReportWimmics Research Team 2015 Activity Report
Wimmics Research Team 2015 Activity Report
 
Lec 1 integrating data science and data analytics in various research thrust
Lec 1 integrating data science and data analytics in various research thrustLec 1 integrating data science and data analytics in various research thrust
Lec 1 integrating data science and data analytics in various research thrust
 
Strata sf - Amundsen presentation
Strata sf - Amundsen presentationStrata sf - Amundsen presentation
Strata sf - Amundsen presentation
 
2019 GDRR: Blockchain Data Analytics - QuTrack: Model Life Cycle Management f...
2019 GDRR: Blockchain Data Analytics - QuTrack: Model Life Cycle Management f...2019 GDRR: Blockchain Data Analytics - QuTrack: Model Life Cycle Management f...
2019 GDRR: Blockchain Data Analytics - QuTrack: Model Life Cycle Management f...
 
Spark summit europe 2015 magellan
Spark summit europe 2015 magellanSpark summit europe 2015 magellan
Spark summit europe 2015 magellan
 
Using SparkML to Power a DSaaS (Data Science as a Service) with Kiran Muglurm...
Using SparkML to Power a DSaaS (Data Science as a Service) with Kiran Muglurm...Using SparkML to Power a DSaaS (Data Science as a Service) with Kiran Muglurm...
Using SparkML to Power a DSaaS (Data Science as a Service) with Kiran Muglurm...
 
Magellen: Geospatial Analytics on Spark by Ram Sriharsha
Magellen: Geospatial Analytics on Spark by Ram SriharshaMagellen: Geospatial Analytics on Spark by Ram Sriharsha
Magellen: Geospatial Analytics on Spark by Ram Sriharsha
 

Recently uploaded

Unleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding ClubUnleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding ClubKalema Edgar
 
TrustArc Webinar - How to Build Consumer Trust Through Data Privacy
TrustArc Webinar - How to Build Consumer Trust Through Data PrivacyTrustArc Webinar - How to Build Consumer Trust Through Data Privacy
TrustArc Webinar - How to Build Consumer Trust Through Data PrivacyTrustArc
 
Artificial intelligence in cctv survelliance.pptx
Artificial intelligence in cctv survelliance.pptxArtificial intelligence in cctv survelliance.pptx
Artificial intelligence in cctv survelliance.pptxhariprasad279825
 
Dev Dives: Streamline document processing with UiPath Studio Web
Dev Dives: Streamline document processing with UiPath Studio WebDev Dives: Streamline document processing with UiPath Studio Web
Dev Dives: Streamline document processing with UiPath Studio WebUiPathCommunity
 
Search Engine Optimization SEO PDF for 2024.pdf
Search Engine Optimization SEO PDF for 2024.pdfSearch Engine Optimization SEO PDF for 2024.pdf
Search Engine Optimization SEO PDF for 2024.pdfRankYa
 
DSPy a system for AI to Write Prompts and Do Fine Tuning
DSPy a system for AI to Write Prompts and Do Fine TuningDSPy a system for AI to Write Prompts and Do Fine Tuning
DSPy a system for AI to Write Prompts and Do Fine TuningLars Bell
 
Advanced Computer Architecture – An Introduction
Advanced Computer Architecture – An IntroductionAdvanced Computer Architecture – An Introduction
Advanced Computer Architecture – An IntroductionDilum Bandara
 
From Family Reminiscence to Scholarly Archive .
From Family Reminiscence to Scholarly Archive .From Family Reminiscence to Scholarly Archive .
From Family Reminiscence to Scholarly Archive .Alan Dix
 
Streamlining Python Development: A Guide to a Modern Project Setup
Streamlining Python Development: A Guide to a Modern Project SetupStreamlining Python Development: A Guide to a Modern Project Setup
Streamlining Python Development: A Guide to a Modern Project SetupFlorian Wilhelm
 
Hyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdf
Hyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdfHyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdf
Hyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdfPrecisely
 
"ML in Production",Oleksandr Bagan
"ML in Production",Oleksandr Bagan"ML in Production",Oleksandr Bagan
"ML in Production",Oleksandr BaganFwdays
 
TeamStation AI System Report LATAM IT Salaries 2024
TeamStation AI System Report LATAM IT Salaries 2024TeamStation AI System Report LATAM IT Salaries 2024
TeamStation AI System Report LATAM IT Salaries 2024Lonnie McRorey
 
Scanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL CertsScanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL CertsRizwan Syed
 
Advanced Test Driven-Development @ php[tek] 2024
Advanced Test Driven-Development @ php[tek] 2024Advanced Test Driven-Development @ php[tek] 2024
Advanced Test Driven-Development @ php[tek] 2024Scott Keck-Warren
 
DevoxxFR 2024 Reproducible Builds with Apache Maven
DevoxxFR 2024 Reproducible Builds with Apache MavenDevoxxFR 2024 Reproducible Builds with Apache Maven
DevoxxFR 2024 Reproducible Builds with Apache MavenHervé Boutemy
 
Leverage Zilliz Serverless - Up to 50X Saving for Your Vector Storage Cost
Leverage Zilliz Serverless - Up to 50X Saving for Your Vector Storage CostLeverage Zilliz Serverless - Up to 50X Saving for Your Vector Storage Cost
Leverage Zilliz Serverless - Up to 50X Saving for Your Vector Storage CostZilliz
 
Story boards and shot lists for my a level piece
Story boards and shot lists for my a level pieceStory boards and shot lists for my a level piece
Story boards and shot lists for my a level piececharlottematthew16
 
Merck Moving Beyond Passwords: FIDO Paris Seminar.pptx
Merck Moving Beyond Passwords: FIDO Paris Seminar.pptxMerck Moving Beyond Passwords: FIDO Paris Seminar.pptx
Merck Moving Beyond Passwords: FIDO Paris Seminar.pptxLoriGlavin3
 
CloudStudio User manual (basic edition):
CloudStudio User manual (basic edition):CloudStudio User manual (basic edition):
CloudStudio User manual (basic edition):comworks
 

Recently uploaded (20)

Unleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding ClubUnleash Your Potential - Namagunga Girls Coding Club
Unleash Your Potential - Namagunga Girls Coding Club
 
TrustArc Webinar - How to Build Consumer Trust Through Data Privacy
TrustArc Webinar - How to Build Consumer Trust Through Data PrivacyTrustArc Webinar - How to Build Consumer Trust Through Data Privacy
TrustArc Webinar - How to Build Consumer Trust Through Data Privacy
 
Artificial intelligence in cctv survelliance.pptx
Artificial intelligence in cctv survelliance.pptxArtificial intelligence in cctv survelliance.pptx
Artificial intelligence in cctv survelliance.pptx
 
Dev Dives: Streamline document processing with UiPath Studio Web
Dev Dives: Streamline document processing with UiPath Studio WebDev Dives: Streamline document processing with UiPath Studio Web
Dev Dives: Streamline document processing with UiPath Studio Web
 
Search Engine Optimization SEO PDF for 2024.pdf
Search Engine Optimization SEO PDF for 2024.pdfSearch Engine Optimization SEO PDF for 2024.pdf
Search Engine Optimization SEO PDF for 2024.pdf
 
DSPy a system for AI to Write Prompts and Do Fine Tuning
DSPy a system for AI to Write Prompts and Do Fine TuningDSPy a system for AI to Write Prompts and Do Fine Tuning
DSPy a system for AI to Write Prompts and Do Fine Tuning
 
Advanced Computer Architecture – An Introduction
Advanced Computer Architecture – An IntroductionAdvanced Computer Architecture – An Introduction
Advanced Computer Architecture – An Introduction
 
From Family Reminiscence to Scholarly Archive .
From Family Reminiscence to Scholarly Archive .From Family Reminiscence to Scholarly Archive .
From Family Reminiscence to Scholarly Archive .
 
Streamlining Python Development: A Guide to a Modern Project Setup
Streamlining Python Development: A Guide to a Modern Project SetupStreamlining Python Development: A Guide to a Modern Project Setup
Streamlining Python Development: A Guide to a Modern Project Setup
 
Hyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdf
Hyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdfHyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdf
Hyperautomation and AI/ML: A Strategy for Digital Transformation Success.pdf
 
"ML in Production",Oleksandr Bagan
"ML in Production",Oleksandr Bagan"ML in Production",Oleksandr Bagan
"ML in Production",Oleksandr Bagan
 
TeamStation AI System Report LATAM IT Salaries 2024
TeamStation AI System Report LATAM IT Salaries 2024TeamStation AI System Report LATAM IT Salaries 2024
TeamStation AI System Report LATAM IT Salaries 2024
 
Scanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL CertsScanning the Internet for External Cloud Exposures via SSL Certs
Scanning the Internet for External Cloud Exposures via SSL Certs
 
Advanced Test Driven-Development @ php[tek] 2024
Advanced Test Driven-Development @ php[tek] 2024Advanced Test Driven-Development @ php[tek] 2024
Advanced Test Driven-Development @ php[tek] 2024
 
DevoxxFR 2024 Reproducible Builds with Apache Maven
DevoxxFR 2024 Reproducible Builds with Apache MavenDevoxxFR 2024 Reproducible Builds with Apache Maven
DevoxxFR 2024 Reproducible Builds with Apache Maven
 
Leverage Zilliz Serverless - Up to 50X Saving for Your Vector Storage Cost
Leverage Zilliz Serverless - Up to 50X Saving for Your Vector Storage CostLeverage Zilliz Serverless - Up to 50X Saving for Your Vector Storage Cost
Leverage Zilliz Serverless - Up to 50X Saving for Your Vector Storage Cost
 
DMCC Future of Trade Web3 - Special Edition
DMCC Future of Trade Web3 - Special EditionDMCC Future of Trade Web3 - Special Edition
DMCC Future of Trade Web3 - Special Edition
 
Story boards and shot lists for my a level piece
Story boards and shot lists for my a level pieceStory boards and shot lists for my a level piece
Story boards and shot lists for my a level piece
 
Merck Moving Beyond Passwords: FIDO Paris Seminar.pptx
Merck Moving Beyond Passwords: FIDO Paris Seminar.pptxMerck Moving Beyond Passwords: FIDO Paris Seminar.pptx
Merck Moving Beyond Passwords: FIDO Paris Seminar.pptx
 
CloudStudio User manual (basic edition):
CloudStudio User manual (basic edition):CloudStudio User manual (basic edition):
CloudStudio User manual (basic edition):
 

Project Progress Report - Recommender Systems for Social Networks

  • 1. Progress Report Presentation www.srcf.ucam.org/~ahh29 Recommender Systems for Social Networks Amir H. Hajizamani twitter.com/amirhhz
  • 2. A Recommender System? • Input: social graph – Users = nodes – Follows = directed edges • Output: Predictions – Edges expected to appear in future • Challenge: Big, Dynamic Dataset • Framework ... Obtain Scrub Explore Model Interpret http://www.dataists.com/2010/09/a-taxonomy-of-data-science/
  • 3. Data: Obtaining and Scrubbing • API – JSON response, paging, rate limits • Python wrapper – Proxies • Crawler – Depth-first search – Maintain state with • Storage – JSON  • Scrub until consistent
  • 4. Recommending (Exploring, Modelling & Predicting) • Basic stats – Power law relationships • Model – Social network  homophily • Recommendations – Ranked social similarity – Simple metric: Jaccard index
  • 5. Any good? • Recommendations on test data – Original data with hidden edges • (later to use temporal snapshots) • Recall and Precision rates – High recall, low precision • Still work to do! – e.g. Use interaction graph