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The document discusses using the EM algorithm to estimate parameters in a generalized linear finite mixture model. It introduces the model and describes how the likelihood equation can be split into two terms, allowing the estimators to be separated into an iterative M-step that fits two standard non-mixture problems using weights and multinomial or Poisson data. An example application fits Weibull distributions to mutant and control mouse data.
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Efficient approximate analytical methods for nonlinear fuzzy boundary value ...
A Computationally Efficient Algorithm to Solve Generalized Method of Moments ...
A Computationally Efficient Algorithm to Solve Generalized Method of Moments ...
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[網二] 打擊家暴的資料英雄--- NPO如何憑藉數據來解決社會問題？
這次的分享將更進一步地剝開 D4SG資料英雄計畫的面紗，主要分成以下幾個部分：
- 公私協力防家暴案例分享
- NPO 如何提一個資料專案
- 如何在招募會上找到強大的資料英雄
- 三個月的專案是怎樣進行的、需要怎樣的準備
- 產出成果之後
[網二] 『資料力，做公益』- 開創公共服務的新契機
有人用勞力做公益，也有人用財力做公益，如果用資料力來做公益，不知道會擦出怎樣的火花？D4SG 資料英雄計畫 (D4SG Fellowship) 結合公益與實務，採用長期專案方式，將實驗性的概念測試鍛鍊為完整的資料公益解決方案，甚至能夠被複製使用。本次活動將跟大家分享公益組織是如何與專業資料人以及各大專院校的合作，攜手解決因資料而生、也能因資料而解的問題。
>> https://net2.hackpad.com/--nkJvwIhq7GM
D4SG : 資料科學開創公共服務的新契機
有人用勞力做公益，也有人用財力做公益，如果用「資料力」來做公益，會擦出怎樣的火花？D4SG 資料公益計畫（Data for Social Good）結合公益與實務，透過專業的資料人與公益組織合作，攜手解決因資料而生、也能因資料而解的問題。
在這場演講你將可以知道資料科學是什麼、它有什麼迷人的特質、在地的真實案例、資料的極限以及執行資料專案所面對的挑戰。
Self improvement in the big data era
大數據的出現成為許多企業的營運趨勢，然而重要的是如何面對、思考大數據背後的解讀與意義。在這樣的浪潮下資料科學應運而生，其發展目的即是針對資料進行理解與分析，進而找出洞見與應用的入世學問。本次演講從大數據時代的資料思考談起，透過各種實務案例點出資料科學的迷人之處。接著，對有志跨入資料科學領域的朋友提出的養成建議。
資料原力，改變社會
第二屆全國教育創新工作營 - 專題8「從學術研究到社會貢獻」，討論到老師應以人為中心的「服務-教學-研究」價值整合，強調人文的初衷，才是從事教師的目的。DSP智庫驅動的 Johnson 在這場工作坊中分享他在 D4SG 計畫的經驗。
資料視覺化的力量
This document contains a collection of links to examples of data visualization on various topics such as popular baby names, American whaling, user demographics by city and gender, dengue fever maps of Tainan, human vs bot classification, and funny data visualizations. It also includes examples comparing line charts to area charts and discussions around correlation vs causation. Recommended visualization tools mentioned include ggplot2, Plotly, and CartoDB. The document calls for data science talks and shares information about an upcoming data value competition platform in Taiwan.
iNEXT: An R package for interpolation and extrapolation in measuring species ...
This document discusses species diversity and the iNEXT R package for interpolating and extrapolating species diversity measures. It begins with definitions of species diversity and effective number of species. It explains why interpolation and extrapolation of diversity curves is needed when sample sizes are limited. The document demonstrates use of the iNEXT package functions on sample data and introduces the shiny package for building interactive web apps in R.
Data science101
資料科學是綜合、跨界的科學，需仰賴不同學科的人才，在一連串的活動中，分工互補，接力完成使命，以交付資料產品。本次的演講內容分成兩個部分：首先，以資料分析者的觀點探討資料科學的整體流程，並分享講者以資料科學精神來探討生活周遭大小事物的案例 (ex: 首長選舉、豪宅房價、學運新聞)；其次，分享講者參與資料科學相關社群活動 (TW.R group, DSP) 的收穫與啟發，進一步提出資料科學家養成的建議。
Statistics with R
Data Science with R Workshop, Session 2.
時間：2014 / 1 / 18 (六) 09:00 - 17:00
地點：中央研究院 資訊所 106、107 會議室
對象：任何對於 R 語言及 R 社群有興趣的各界人士，均歡迎報名參與
人數：100 人（上限）
費用：免費
Workshop website: http://www.openfoundry.org/tw/activities/details/428-Data-Science-with-R-Workshop
HTML5 slide : http://johnsonhsieh.github.io/DSR_workshop/
iNEXT: an r package for interpolation and extrapolation species diversity
R taiwan 2013 研討會, Session A4
Date: 2013/12/06 (Fir)
http://event.twdatascience.org/
Intro shiny coscup2013
R 是目前最紅的 Open Source 統計語言，而 Shiny 是 R 裡面一隻整合了 R 程式計算與網頁應用程式的套件，使得 R 程式開發者可以很輕易地透過瀏覽器網頁點選的方式將其程式分享給使用者。針對 R 的使用者本講題將做一個快速入門 Shiny 的介紹。
More from Johnson Hsieh (17)
iNEXT: An R package for interpolation and extrapolation in measuring species ...
iNEXT: An R package for interpolation and extrapolation in measuring species ...
iNEXT: an r package for interpolation and extrapolation species diversity
iNEXT: an r package for interpolation and extrapolation species diversity
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Your goto partner for Oracle Cloud, PeopleSoft, E-Business Suite, and Ellucian Banner. We are a firm specialized in managed services and consulting.
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Artificial Intelligence and Electronic WarfarePapadakis K.-Cyber-Information Warfare Analyst & Cyber Defense/Security Consultant-Hellenic MoD
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5th LF Energy Power Grid Model Meet-up Slides
5th Power Grid Model Meet-up
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Power Grid Model
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We’ll discuss and demo the benefits of UiPath Apps and connectors including:
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Enjoying high-performance CRUD (create, read, update, delete) operations, for
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Charlie Greenberg, host
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In the realm of cybersecurity, offensive security practices act as a critical shield. By simulating real-world attacks in a controlled environment, these techniques expose vulnerabilities before malicious actors can exploit them. This proactive approach allows manufacturers to identify and fix weaknesses, significantly enhancing system security.
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The presentation culminates in a live demonstration. We'll showcase the manipulation of Galileo's Open Service pilot signal, simulating an attack on various software and hardware systems. This practical demonstration serves to highlight the potential consequences of unaddressed vulnerabilities, emphasizing the importance of offensive security practices in safeguarding critical infrastructure.
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Topics covered:
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zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
Folding is a recent technique for building efficient recursive SNARKs. Several elegant folding protocols have been proposed, such as Nova, Supernova, Hypernova, Protostar, and others. However, all of them rely on an additively homomorphic commitment scheme based on discrete log, and are therefore not post-quantum secure. In this work we present LatticeFold, the first lattice-based folding protocol based on the Module SIS problem. This folding protocol naturally leads to an efficient recursive lattice-based SNARK and an efficient PCD scheme. LatticeFold supports folding low-degree relations, such as R1CS, as well as high-degree relations, such as CCS. The key challenge is to construct a secure folding protocol that works with the Ajtai commitment scheme. The difficulty, is ensuring that extracted witnesses are low norm through many rounds of folding. We present a novel technique using the sumcheck protocol to ensure that extracted witnesses are always low norm no matter how many rounds of folding are used. Our evaluation of the final proof system suggests that it is as performant as Hypernova, while providing post-quantum security.
Paper Link: https://eprint.iacr.org/2024/257
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zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
zkStudyClub - LatticeFold: A Lattice-based Folding Scheme and its Application...
Paper Summary
- 1. Paper Summary Maximum Likelihood in a Generalized linear Finite Mixture Model by Using the EM Algorithm Jansen, R.C.; Reinink, K.; Heijden, G.W.A.M. van der (1993) 06/02/09 g9624515 謝宗震
- 10. 06/02/09 g9624515 謝宗震
- 11. 06/02/09 g9624515 謝宗震
- 12. Application 06/02/09 g9624515 謝宗震
- 13. Application 06/02/09 g9624515 謝宗震 Results of fitting a generalized linear finite mixture model of ten and two Weibull distributions to a mutant and a control mouse, respectively.
- 14. Application 06/02/09 g9624515 謝宗震
- 17. Thank you for your listening. 06/02/09 g9624515 謝宗震