
{"id":10986,"date":"2023-11-17T11:37:56","date_gmt":"2023-11-17T11:37:56","guid":{"rendered":"https:\/\/whiteriversmediasolutions.com\/Sony\/hierarchical-diffusion-models-for-singing-voice-neural-vocoder-copy\/"},"modified":"2023-11-30T13:09:37","modified_gmt":"2023-11-30T13:09:37","slug":"llm-based-generation-of-item-description-for-recommendation-system","status":"publish","type":"post","link":"https:\/\/whiteriversmediasolutions.com\/Sony\/llm-based-generation-of-item-description-for-recommendation-system\/","title":{"rendered":"LLM Based Generation of Item-Description for Recommendation System"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"10986\" class=\"elementor elementor-10986\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cd44eb5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cd44eb5\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9f11b70\" data-id=\"9f11b70\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-215a70e elementor-widget elementor-widget-heading\" data-id=\"215a70e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">BLOGS<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-28dc161 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"28dc161\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-63cf269\" data-id=\"63cf269\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6837436 elementor-widget elementor-widget-heading\" data-id=\"6837436\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">LLM Based Generation of Item-Description for Recommendation System<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9bd1630 elementor-widget elementor-widget-text-editor\" data-id=\"9bd1630\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tBy Brijraj Singh, Research Scientist At Sony Research India\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a034cb elementor-widget elementor-widget-text-editor\" data-id=\"7a034cb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t17<sup>th<\/sup> November 2023\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-acbeaeb elementor-widget elementor-widget-text-editor\" data-id=\"acbeaeb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In this blog, Brijraj Singh summarises the paper titled <a href=\"https:\/\/recsys.acm.org\/recsys23\/\" target=\"_blank\" rel=\"noopener\">\u2018LLM Based Generation of Item-Description for Recommendation System\u2019<\/a> co-authored by Akardeep Acharya and Onoe Naoyuki which was accepted at the <a href=\"https:\/\/recsys.acm.org\/recsys23\/\" target=\"_blank\" rel=\"noopener\">Recommender Systems 2023 (RecSys) Conference<\/a> in Singapore from 18th-22nd September 2023.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9644692 elementor-widget elementor-widget-text-editor\" data-id=\"9644692\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><strong>Introduction<\/strong><\/h4>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3cfed37 elementor-widget elementor-widget-text-editor\" data-id=\"3cfed37\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tRecommendation systems play a significant role in keeping users engaged with platforms. The availability of services like media streaming, online gaming, e-commerce and more has raised the need for and importance of recommendation systems and is being applied on multiple domains involved in customer services. Multiple algorithms have been developed in the race to provide more relevant recommendations to users. Recall, Hit ratio, NDCG, CTR are popular metrics to judge the performance of the recommendation model, where the efficacy of the algorithm is validated with the user&#8217;s response. Many algorithms predict the rating of the items by a particular user, and RMSE is considered as their criteria. However, predicting the rating alone does not complete the task of recommendation, which also requires a further decision of selecting a few items out of good-rated items. \n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c0518a1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c0518a1\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-b15be70\" data-id=\"b15be70\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-7c22261\" data-id=\"7c22261\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5946472 elementor-widget elementor-widget-image\" data-id=\"5946472\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"850\" height=\"436\" src=\"https:\/\/whiteriversmediasolutions.com\/Sony\/uvaftoap\/2023\/11\/1-2.png\" class=\"attachment-full size-full wp-image-10995\" alt=\"\" srcset=\"https:\/\/whiteriversmediasolutions.com\/Sony\/uvaftoap\/2023\/11\/1-2.png 850w, https:\/\/whiteriversmediasolutions.com\/Sony\/uvaftoap\/2023\/11\/1-2-300x154.png 300w, https:\/\/whiteriversmediasolutions.com\/Sony\/uvaftoap\/2023\/11\/1-2-768x394.png 768w\" sizes=\"(max-width: 850px) 100vw, 850px\" style=\"width:100%;height:51.29%;max-width:850px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dceb50b elementor-widget elementor-widget-text-editor\" data-id=\"dceb50b\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\tFig: Process diagram of LLM based Recommendation System \t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-cd801eb\" data-id=\"cd801eb\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9b69060 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9b69060\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-cfbe302\" data-id=\"cfbe302\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7132bf0 elementor-widget elementor-widget-text-editor\" data-id=\"7132bf0\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><strong>Findings<\/strong><\/h4>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4344f1e elementor-widget elementor-widget-text-editor\" data-id=\"4344f1e\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In this paper we explore movie recommendation and have established the concept (CDHRNN: Content Driven Hierarchical Recurrent Neural Network) of considering the description of the movie along with <em>movie_Id<\/em> which provides better recommendation performance because of the better representation of the items. The <em>movie_Id<\/em> or <em>user_Id<\/em> does not contain any information (as they are unique numbers) that can help in understanding whether two movies are similar or dissimilar by looking at their Id. Therefore, when they are considered with the description, the previous query can easily be answered, which helps in improving the recommendation performance. In the case of the video recommendation, where the item is a movie, finding the description\/plot of the movie is not so challenging as it can easily be web-scrapped through a repository like IMDb. However, there could be a scenario when the description of the items cannot be crawled (considering other recommendation domains as well), in such cases we have proposed the use of LLM (Large Language Models), which receives exhaustive training of existing popular content. To be specific, we used Alpaca-Lora, and with the help of prompting which sets the context to provide the desirable description or plot of the movie. Since, the performance of LLM depends on its encounter with the online content at the time of training, it sets up a condition where only contemporary plots should be requested of the movies. If we query the plot of an old and unpopular movie, there is a chance that the model would not have received the training of that content and then it will try to provide the description based on its learning corresponding to similar items, which might not be relevant. This problem of LLM is known as hallucination when it provides the response based on irrelevant understanding. Hence, LLM helps in generating the content under certain assumptions.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-85bbfff elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"85bbfff\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8881599\" data-id=\"8881599\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6d045fb elementor-widget elementor-widget-text-editor\" data-id=\"6d045fb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>To know more about Sony Research India\u2019s Research Publications, visit the \u2018Publications\u2019 section on our \u2018Open Innovation\u2019s page:<\/p><p><a href=\"https:\/\/www.sonyresearchindia.com\/open-innovation\/\">Open Innovation with Sony R&amp;D \u2013 Sony Research India<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>In this blog, Brijraj Singh summarises the paper titled&#8230;<\/p>\n","protected":false},"author":1,"featured_media":11246,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[22,17],"tags":[],"class_list":["post-10986","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-blogs","category-technology","entry"],"yoast_head":"\n<title>LLM Based Generation of Item-Description for Recommendation System - 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