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This document describes a recommender system project done by Lakshya Karwa and Tarun Kumar I.S. guided by Dr. J. Shana. It used user interaction data from an internal communications platform from 2016-2017 to build and compare three recommender models: Alternating Least Squares (ALS), Bayesian Personalized Ranking (BPR), and Logistic Matrix Factorization (LMF). ALS had the highest accuracy at 98.1% while BPR and LMF also performed well at 82.6% and 97.89% respectively. ALS was the fastest to train while BPR was the slowest. The models provided personalized article recommendations to users based on their interactions.
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7:个人信誉贷款加10分
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1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：客户在留信官方认证查询网站查询到认证通过结果后付款，不成功不收费！
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一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信41543339】文凭即可
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我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
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3:国家专业人才认证中心颁发入库证书
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5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
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8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Build applications with generative AI on Google Cloud
We will explore Vertex AI - Model Garden powered experiences, we are going to learn more about the integration of these generative AI APIs. We are going to see in action what the Gemini family of generative models are for developers to build and deploy AI-driven applications. Vertex AI includes a suite of foundation models, these are referred to as the PaLM and Gemini family of generative ai models, and they come in different versions. We are going to cover how to use via API to: - execute prompts in text and chat - cover multimodal use cases with image prompts. - finetune and distill to improve knowledge domains - run function calls with foundation models to optimize them for specific tasks. At the end of the session, developers will understand how to innovate with generative AI and develop apps using the generative ai industry trends.
原版一比一利兹贝克特大学毕业证(LeedsBeckett毕业证书)如何办理
原版制作【微信:41543339】【利兹贝克特大学毕业证(LeedsBeckett毕业证书)】【微信:41543339】《成绩单、外壳、雅思、offer、真实留信官方学历认证（永久存档/真实可查）》采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路）我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信41543339】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信41543339】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：客户在留信官方认证查询网站查询到认证通过结果后付款，不成功不收费！
Learn SQL from basic queries to Advance queries
Dive into the world of data analysis with our comprehensive guide on mastering SQL! This presentation offers a practical approach to learning SQL, focusing on real-world applications and hands-on practice. Whether you're a beginner or looking to sharpen your skills, this guide provides the tools you need to extract, analyze, and interpret data effectively.
Key Highlights:
Foundations of SQL: Understand the basics of SQL, including data retrieval, filtering, and aggregation.
Advanced Queries: Learn to craft complex queries to uncover deep insights from your data.
Data Trends and Patterns: Discover how to identify and interpret trends and patterns in your datasets.
Practical Examples: Follow step-by-step examples to apply SQL techniques in real-world scenarios.
Actionable Insights: Gain the skills to derive actionable insights that drive informed decision-making.
Join us on this journey to enhance your data analysis capabilities and unlock the full potential of SQL. Perfect for data enthusiasts, analysts, and anyone eager to harness the power of data!
#DataAnalysis #SQL #LearningSQL #DataInsights #DataScience #Analytics
ViewShift: Hassle-free Dynamic Policy Enforcement for Every Data Lake
Dynamic policy enforcement is becoming an increasingly important topic in today’s world where data privacy and compliance is a top priority for companies, individuals, and regulators alike. In these slides, we discuss how LinkedIn implements a powerful dynamic policy enforcement engine, called ViewShift, and integrates it within its data lake. We show the query engine architecture and how catalog implementations can automatically route table resolutions to compliance-enforcing SQL views. Such views have a set of very interesting properties: (1) They are auto-generated from declarative data annotations. (2) They respect user-level consent and preferences (3) They are context-aware, encoding a different set of transformations for different use cases (4) They are portable; while the SQL logic is only implemented in one SQL dialect, it is accessible in all engines.
#SQL #Views #Privacy #Compliance #DataLake
Predictably Improve Your B2B Tech Company's Performance by Leveraging Data
Harness the power of AI-backed reports, benchmarking and data analysis to predict trends and detect anomalies in your marketing efforts.
Peter Caputa, CEO at Databox, reveals how you can discover the strategies and tools to increase your growth rate (and margins!).
From metrics to track to data habits to pick up, enhance your reporting for powerful insights to improve your B2B tech company's marketing.
- - -
This is the webinar recording from the June 2024 HubSpot User Group (HUG) for B2B Technology USA.
Watch the video recording at https://youtu.be/5vjwGfPN9lw
Sign up for future HUG events at https://events.hubspot.com/b2b-technology-usa/
原版一比一多伦多大学毕业证(UofT毕业证书)如何办理
原版制作【微信:41543339】【多伦多大学毕业证(UofT毕业证书)】【微信:41543339】《成绩单、外壳、雅思、offer、真实留信官方学历认证（永久存档/真实可查）》采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【我们承诺采用的是学校原版纸张（纸质、底色、纹路）我们拥有全套进口原装设备，特殊工艺都是采用不同机器制作，仿真度基本可以达到100%，所有工艺效果都可提前给客户展示，不满意可以根据客户要求进行调整，直到满意为止！】
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信41543339】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信41543339】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
留信网服务项目：
1、留学生专业人才库服务（留信分析）
2、国（境）学习人员提供就业推荐信服务
3、留学人员区块链存储服务
【关于价格问题（保证一手价格）】
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：客户在留信官方认证查询网站查询到认证通过结果后付款，不成功不收费！
原版制作(unimelb毕业证书)墨尔本大学毕业证Offer一模一样
学校原件一模一样【微信：741003700 】《(unimelb毕业证书)墨尔本大学毕业证》【微信：741003700 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
【主营项目】
一.毕业证【q微741003700】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微741003700】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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artrec.pptx
- 1. Article Recommender System Done by- Lakshya Karwa Tarun Kumar I. S. Guided by- Dr. J. Shana
- 2. On the Internet, where the number of options is overwhelming, there is a need to filter prioritize and efficiently deliver relevant information in order to alleviate the problem of information overload, which has created a potential problem to many internet users. Problem Description
- 3. User_Interactions The dataset which we are using was available on DeskDrop which is an Internal Communications Platform developed by CI & T. It has data from 2016 to 2017 There are 2 different Datasets namely : Shared_Articles DataSet Description
- 4. Shared_Articles ● timestamp ● eventType ● contentId ● authorPersonId ● authorSessionId ● authorUserAgent ● authorRegion ● authorCountry ● contentType ● url ● title ● Text ● Lang
- 5. Shared_Articles • Contains information about the articles shared in the platform. Each article has a sharing date (timestamp), the original URL, title, content, the article lang and information about the user who shared the article (author). • Two possible event types at a given timestamp: CONTENT SHARED: The article was shared in the platform and is available for users. CONTENT REMOVED: The article was removed from the platform and not available for further recommendation. • For the sake of simplicity, we only consider here the "CONTENT SHARED" event type, assuming (naively) that all articles were available during the whole one year period. For a more precise evaluation (and higher accuracy), only articles that were available at a given time should be recommended.
- 6. User_Interactions ● timestamp ● eventType ● contentId ● personId ● sessionId ● userAgent ● userRegion ● userCountry
- 7. User_Interactions • Contains logs of user interactions on shared articles. It can be joined to articles_shared.csv by contentId column. • The eventType values are: VIEW: The user has opened the article. LIKE: The user has liked the article. COMMENT CREATED: The user created a comment in the article. FOLLOW: The user chose to be notified on any new comment in the article. BOOKMARK: The user has bookmarked the article for easy return in the future.
- 8. Data Pre-Processing and Preparation • No filling up of data was required as there were no missing info in the dataset • A new rating column was created based on the user’s actions on a particular article. 1 - VIEW: The user has opened the article. 2 - LIKE: The user has liked the article. 3 - COMMENT CREATED: The user created a comment in the article. 4 - FOLLOW: The user chose to be notified on any new comment in the article. 5 - BOOKMARK: The user has bookmarked the article for easy return in the future. • The two datasets were merged using “INNER Join” using the “contentID” attribute present in both the datasets
- 10. IMPLICITLY ADDING VALUES TO PREVIOUS VIEWS
- 12. COUNT OF ITEMS IN EVENT TYPE
- 13. NO OF ARTICLES IN DIFFFENT LANGUAGES
- 17. MODEL SELECTION • Alternating Least Squares (ALS) - Performed by Lakshya Karwa • Bayesian Personalized Ranking (BPR) - Performed by Tarun Kumar I.S. • Logistic Matrix Factorization (LMF) - Performed by both
- 18. MODEL BUILDING PHASES • Model Selection : • Was selected on the basis of collaborative filtering. • ALS minimizes two loss functions alternatively. • Scalability • BPR works on Concept of Bayes concept, where it tries to find probability of item to occur when certain thing occur. • LMF works on same concept using ALS but using log function in confidence matrix to improve accuracy. • Model Fitting : Done using the implicit library available in python • Model Validation: Checked using train-test split
- 19. Performance Analysis • Accuracy for Bayesian Personalized Ranking (BPR): 82.6 % • Accuracy for Alternating Least Squares (ALS): 98.1% • Accuracy for Logistic Matrix Factorization (LMF): 97.89 %
- 21. Inference For ALS • Collaborative Filtering can be improved using Matrix Factorization • The method is pretty robust. • The time complexity is O(n).
- 22. Inference for BPR • The method is does depend more on previous interactions than latent factors. • The time complexity is O(n).
- 23. Inference For LMF • THIS method is almost similar as ALS, here we use log function in confidence matrix which improves accuracy than ALS • The time complexity is O(n).
- 24. Time Taken by each of the models to train - Total Time taken in building the BPR model: 0.25283193588256836 - Total Time taken in building the ALS model: 0.4497077465057373 - Total Time taken in building the LMF model: 0.3670186996459961
- 25. RECOMENDATION
- 29. Challenges • The implicit library available for implementation of the algorithms wasn’t readily available for the Windows 10 Operating System. It had to be run on Linux (ubuntu) and to run on Windows 10 it needed a C/C++ compiler. • On Ubuntu, the system took a lot of time computing the results for ALS, i.e., 17.xx seconds, every time the model was built.
- 30. Learning • The usage of the implicit Library available in python. • How different-different ‘Recommender Systems’ work. • Implementation of ALS, BPR and LMF models using the implicit library and how collaborative filtering can be improved. • Matrix Factorization for sparse data problem.
- 31. References • DataSet - https://www.kaggle.com/gspmoreira/articles-sharing- reading-from-cit-deskdrop • https://implicit.readthedocs.io/en/latest/quickstart.html • https://implicit.readthedocs.io/en/latest/ • https://readthedocs.org/projects/implicit/downloads/pdf/latest/
- 32. THANK YOU