{"id":1288,"date":"2024-08-11T10:34:16","date_gmt":"2024-08-11T05:04:16","guid":{"rendered":"https:\/\/www.techandtrain.com\/blog\/?p=1288"},"modified":"2025-10-22T14:51:31","modified_gmt":"2025-10-22T09:21:31","slug":"learnings-from-emasters-data-science-for-decision-making-iit-gandhinagar-part-1","status":"publish","type":"post","link":"https:\/\/www.techandtrain.com\/blog\/2024\/08\/learnings-from-emasters-data-science-for-decision-making-iit-gandhinagar-part-1\/","title":{"rendered":"Learnings from eMasters Data Science for Decision Making &#8211; IIT Gandhinagar &#8211; Part 1"},"content":{"rendered":"\n<p id=\"ember5634\">Below are the learnings from eMasters Data Science for Decision Making &#8211; IIT Gandhinagar &#8211; Part 1. This needs to be an article in itself. You can find more details here about eDSDM here: <a href=\"https:\/\/sites.iitgn.ac.in\/iitgnx\/e-masters\/\">e-Masters | IITGNX<\/a><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>There is Mathematics for your AIML problem in feature engineering, preprocessing, evaluation metrics, models, errors, etc. and so on or you can build some relationship between Mathematics and your problem either by breaking the problem into pieces or transforming data and so on.<\/li>\n\n\n\n<li>Human intuition is still invaluable like in situations of imbalanced datasets, regression and more.<\/li>\n\n\n\n<li>Visualization and EDA almost always help for your problems. For higher dimension problems you can do PCA, T-SNE, shadowing on lower dimensions, etc. more approaches to bring it to lower dimensions with or without transformation like basis transformation. In this situation, you should also feed data after this transformation for testing \/ using the model.<\/li>\n\n\n\n<li>There are problems beyond model selection and preprocessing, feature engineering like data quality, overfitting, evaluation, errors, hyper parameter tuning and generalization which we need to think about.<\/li>\n\n\n\n<li>Situations like classification of medical diagnosis issues have very high value repercussions for wrong classification whereas some models with overfitting won&#8217;t generalize and cause problems like in normal situations with regression.<\/li>\n\n\n\n<li>Probability concepts like equally likely for randomness, distributions, fairness, probability tree, joint probability, permutations and combinations, etc. have lot of value and are worth learning.<\/li>\n\n\n\n<li>There is no learning like learning by experience, concepts and application.<\/li>\n\n\n\n<li>Your assumptions maybe wrong as well so it&#8217;s good to verify.<\/li>\n\n\n\n<li>Accuracy alone may not be a good measure, please add recall &amp; precision as well in your analysis especially in imbalanced datasets.<\/li>\n\n\n\n<li>Domain knowledge matters. Don&#8217;t ignore this.<\/li>\n\n\n\n<li>Email me: <a href=\"mailto:Neil@HarwaniSytems.in\">Neil@HarwaniSytems.in<\/a><\/li>\n\n\n\n<li>Website: <a href=\"http:\/\/www.harwanisystems.in\/\">www.HarwaniSystems.in<\/a><\/li>\n\n\n\n<li>Blog: <a href=\"http:\/\/www.techandtrain.com\/blog\">www.TechAndTrain.com\/blog<\/a><\/li>\n\n\n\n<li>LinkedIn: <a href=\"https:\/\/www.linkedin.com\/in\/neil27\/\">Neil Harwani | LinkedIn<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Below are the learnings from eMasters Data Science for Decision Making &#8211; IIT Gandhinagar &#8211; Part 1. This needs to [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":1289,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"nf_dc_page":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[72,82],"tags":[73,74,385,204],"class_list":["post-1288","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-analytics","category-data-science","tag-analytics","tag-data-science","tag-edsdm","tag-learnings"],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2024\/08\/DataScience.jpg?fit=1280%2C853&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p7do02-kM","jetpack-related-posts":[{"id":1532,"url":"https:\/\/www.techandtrain.com\/blog\/2026\/04\/keywords-notes-from-executive-masters-in-data-science-for-decision-making-at-iit-gandhinagar-part-1-assisted-by-chatgpt\/","url_meta":{"origin":1288,"position":0},"title":"Keywords &amp; Notes from Executive Masters in Data Science for Decision Making at IIT Gandhinagar &#8211; Part 1 &#8211; Assisted by ChatGPT","author":"Neil Harwani","date":"April 11, 2026","format":false,"excerpt":"Here are 20 high-quality keywords for each category, structured for learning, research, and practical application: 1. Advanced Probability & Statistics Bayesian Inference Markov Chains Stochastic Processes Central Limit Theorem Hypothesis Testing Maximum Likelihood Estimation (MLE) Bayesian Networks Copulas Multivariate Distributions Monte Carlo Simulation Gibbs Sampling Hidden Markov Models (HMM) Variational\u2026","rel":"","context":"In &quot;Academics&quot;","block_context":{"text":"Academics","link":"https:\/\/www.techandtrain.com\/blog\/category\/academics\/"},"img":{"alt_text":"Image credit: www.Pixabay.com","src":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2026\/04\/DS-scaled.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2026\/04\/DS-scaled.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2026\/04\/DS-scaled.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2026\/04\/DS-scaled.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2026\/04\/DS-scaled.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1426,"url":"https:\/\/www.techandtrain.com\/blog\/2025\/02\/top-100-mathematics-keywords-for-data-science-part-1\/","url_meta":{"origin":1288,"position":1},"title":"Top 100 mathematics keywords for Data Science &#8211; Part 1","author":"Neil Harwani","date":"February 22, 2025","format":false,"excerpt":"Whoever is teaching you data science without teaching you Mathematics especially optimization is not teaching it right to you. That's my biggest learning from Master of Data Science at IIT Gandhinagar - it will take you good 2 years to learn the related mathematics in all four major areas below.\u2026","rel":"","context":"In &quot;Data Science&quot;","block_context":{"text":"Data Science","link":"https:\/\/www.techandtrain.com\/blog\/category\/data-science\/"},"img":{"alt_text":"Image credit: www.Pixabay.com","src":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2025\/02\/Data.jpg?fit=1200%2C801&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2025\/02\/Data.jpg?fit=1200%2C801&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2025\/02\/Data.jpg?fit=1200%2C801&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2025\/02\/Data.jpg?fit=1200%2C801&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2025\/02\/Data.jpg?fit=1200%2C801&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":417,"url":"https:\/\/www.techandtrain.com\/blog\/2019\/02\/what-should-be-the-subjects-course-structure-for-teaching-data-analytics-data-science-in-mba\/","url_meta":{"origin":1288,"position":2},"title":"What should be the subjects &#038; course structure for teaching Data Analytics \/ Data Science in MBA?","author":"Neil Harwani","date":"February 12, 2019","format":false,"excerpt":"Data Science & Analytics including Operations \/ Decision Science are evolving fields which are in demand currently for various reasons. Most companies are experimenting and creating projects \/ products around analytics \/ data science. I am listing the subjects & courses that an MBA student should take to cover Data\u2026","rel":"","context":"In &quot;Analytics&quot;","block_context":{"text":"Analytics","link":"https:\/\/www.techandtrain.com\/blog\/category\/analytics\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2019\/02\/Analytics2.jpg?fit=960%2C635&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2019\/02\/Analytics2.jpg?fit=960%2C635&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2019\/02\/Analytics2.jpg?fit=960%2C635&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2019\/02\/Analytics2.jpg?fit=960%2C635&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":336,"url":"https:\/\/www.techandtrain.com\/blog\/2018\/08\/universities-colleges-offering-courses-degrees-in-analytics-data-science-in-india-part-1\/","url_meta":{"origin":1288,"position":3},"title":"Universities &#038; Colleges offering courses &#038; degrees in Analytics \/ Data Science in India &#8211; Part 1","author":"Neil Harwani","date":"August 14, 2018","format":false,"excerpt":"BITS Pilani - Offering MSc in Analytics, MTech in Computer Science with specialization in Analytics IIM Calcutta, ISI Kolkata & IIT Kharagpur - PG Diploma in Business Analytics Great Lakes, Chennai - PGP in Analytics IIIT Bangalore - PGP in Analytics via UpGrad XLRI - Executive Program in Data Science\u2026","rel":"","context":"In &quot;Analytics&quot;","block_context":{"text":"Analytics","link":"https:\/\/www.techandtrain.com\/blog\/category\/analytics\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2018\/08\/Analytics-3.png?fit=1200%2C1047&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2018\/08\/Analytics-3.png?fit=1200%2C1047&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2018\/08\/Analytics-3.png?fit=1200%2C1047&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2018\/08\/Analytics-3.png?fit=1200%2C1047&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2018\/08\/Analytics-3.png?fit=1200%2C1047&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":1061,"url":"https:\/\/www.techandtrain.com\/blog\/2023\/05\/some-unique-courses-for-working-professionals-in-india-post-liberalization-reforms-in-education-part-1\/","url_meta":{"origin":1288,"position":4},"title":"Some unique courses for working professionals in India post liberalization \/ reforms in education &#8211; Part 1","author":"Neil Harwani","date":"May 7, 2023","format":false,"excerpt":"Here with I am providing a list of unique courses that I have observed in India post liberalization \/ reforms in education. Most are online \/ work integrated or distance learning - this is Part 1 of the list for working professionals: PGC IISc from TalentSprint -\u00a0Deep Tech Expertise for\u2026","rel":"","context":"In &quot;Education&quot;","block_context":{"text":"Education","link":"https:\/\/www.techandtrain.com\/blog\/category\/education\/"},"img":{"alt_text":"Credits: www.Pixabay.com","src":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2023\/05\/books.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2023\/05\/books.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2023\/05\/books.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2023\/05\/books.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2023\/05\/books.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":367,"url":"https:\/\/www.techandtrain.com\/blog\/2018\/10\/how-to-explore-and-learn-analytics-data-science\/","url_meta":{"origin":1288,"position":5},"title":"How to explore and learn &#8220;Analytics &#038; Data Science&#8221; ?","author":"Neil Harwani","date":"October 10, 2018","format":false,"excerpt":"One of my students asked me as to how\u00a0can someone\u00a0explore and learn Analytics \/ Data Science domain with an intention to build their career in it ? There are three types of roles available in Data Science \/ Analytics: Functional consultant like a Business \/ Data Analyst Technical Consultant like\u2026","rel":"","context":"In &quot;Analytics&quot;","block_context":{"text":"Analytics","link":"https:\/\/www.techandtrain.com\/blog\/category\/analytics\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2018\/10\/Analysis-2.jpg?fit=1200%2C800&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2018\/10\/Analysis-2.jpg?fit=1200%2C800&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2018\/10\/Analysis-2.jpg?fit=1200%2C800&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2018\/10\/Analysis-2.jpg?fit=1200%2C800&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.techandtrain.com\/blog\/wp-content\/uploads\/2018\/10\/Analysis-2.jpg?fit=1200%2C800&ssl=1&resize=1050%2C600 3x"},"classes":[]}],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.techandtrain.com\/blog\/wp-json\/wp\/v2\/posts\/1288","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.techandtrain.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techandtrain.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techandtrain.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techandtrain.com\/blog\/wp-json\/wp\/v2\/comments?post=1288"}],"version-history":[{"count":2,"href":"https:\/\/www.techandtrain.com\/blog\/wp-json\/wp\/v2\/posts\/1288\/revisions"}],"predecessor-version":[{"id":1291,"href":"https:\/\/www.techandtrain.com\/blog\/wp-json\/wp\/v2\/posts\/1288\/revisions\/1291"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.techandtrain.com\/blog\/wp-json\/wp\/v2\/media\/1289"}],"wp:attachment":[{"href":"https:\/\/www.techandtrain.com\/blog\/wp-json\/wp\/v2\/media?parent=1288"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techandtrain.com\/blog\/wp-json\/wp\/v2\/categories?post=1288"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techandtrain.com\/blog\/wp-json\/wp\/v2\/tags?post=1288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}