{"id":3262,"date":"2019-01-09T08:25:56","date_gmt":"2019-01-09T14:25:56","guid":{"rendered":"https:\/\/bluerockdesigns.info\/?post_type=portfolio&#038;p=3262"},"modified":"2020-07-07T11:12:17","modified_gmt":"2020-07-07T16:12:17","slug":"covering-the-basic-concepts-surrounding-the-weight-and-strength-of-evidence","status":"publish","type":"portfolio","link":"https:\/\/forensicstats.org\/blog\/portfolio\/covering-the-basic-concepts-surrounding-the-weight-and-strength-of-evidence\/","title":{"rendered":"Covering the Basic Concepts Surrounding the Weight and Strength of Evidence"},"content":{"rendered":"<p>This CSAFE Center Wide webinar was presented on January 7, 2019 by Dr. Danica Ommen, CSAFE researcher and Assistant Professor at Iowa State University. Dr. Ommen has provided presentation slides for <a href=\"https:\/\/forensicstats.org\/wp-content\/uploads\/2019\/01\/csafewebinar_jan2019_part1.pdf\">Part 1<\/a> and <a href=\"https:\/\/forensicstats.org\/wp-content\/uploads\/2019\/02\/csafewebinar_jan2019_part2-1.pdf\">Part 2<\/a> and <a href=\"https:\/\/forensicstats.org\/wp-content\/uploads\/2019\/01\/csafewebinar_references.pdf\">references<\/a>.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Presentation Description:\u00a0<\/strong><\/p>\n<p>In this two-part presentation, we will focus on aspects of the forensic identification of source problems where the main question of interest is determining the origin of evidence with unknown source.\u00a0 In order to solve this problem, we need to determine the value of the evidence with respect to two competing propositions for its origin by computing some type of \u201clikelihood ratio.\u201d\u00a0 After we get this value of evidence, the idea is that it can be used to help someone make a decision.\u00a0 In the case of a criminal trial, the decision would be regarding the guilt or innocence of the defendant.\u00a0 However, there are many different ideas about what the \u201clikelihood ratio\u201d should look like and how to compute its value, especially in the face of uncertainty.\u00a0 Often, we are uncertain about the statistical models we\u2019ve chosen to describe the evidence.\u00a0\u00a0In this presentation, we will discuss the basic definitions,\u00a0as well as various computational strategies,\u00a0for both the weight and the value of evidence.\u00a0 In addition, we will review and discuss recent controversies surrounding the value of evidence.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Part 1<\/strong><\/p>\n<p><iframe title=\"Covering the Basic Concepts Surrounding the Weight and Strength of Evidence- Part 1\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/tHux_MurzIM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Part 2<\/strong><\/p>\n<p><iframe title=\"Covering the Basic Concepts Surrounding the Weight and Strength of Evidence- Part 2\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/Gpy9mGXyYmc?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This CSAFE Center Wide webinar was presented on January 7, 2019 by Dr. Danica Ommen, CSAFE researcher and Assistant Professor at Iowa State University. Dr. Ommen has provided presentation slides [&hellip;]<\/p>\n","protected":false},"author":10,"featured_media":3268,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","portfolio_category":[64],"portfolio_tag":[58],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Covering the Basic Concepts Surrounding the Weight and Strength of Evidence - Center for Statistics and Applications in Forensic Evidence<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/forensicstats.org\/blog\/portfolio\/covering-the-basic-concepts-surrounding-the-weight-and-strength-of-evidence\/\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" 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