Introduction to lp_solve
Posted by Armando Brito Mendes | Filed under Investigação Operacional, software
Um bom solver open source para Excel Solver Foundation
manual completo, escolher a versão no menu acima
link para download do software
Tags: Excel, otimização, programação em folha de cálculo
Mathematics resources – mathcentre
Posted by Armando Brito Mendes | Filed under matemática, materiais ensino
Materiais para as aulas: Análise e álgebra
Quick Reference leaflets – key topics in a nutshell – brief and easily accessible resources
mathtutor Video tutorials – watch and listen to a tutor working through important topics
Teach Yourself booklets – written to accompany the videos, these provide in-depth treatment of important topics, with theory, worked examples and exercises
Practice & Revision booklets – hundreds of practice exercises with answers covering important topics in algebra and calculus
On-line Test Yourself diagnostics – on specific topics to enable you to gauge your competency and decide whether further work is required
On-line Test Yourself exercises – with answers provided, to enable you to practice key techniques
on-line exercises and fully worked solutions generated from the STACK computer-assisted assessment system and linked directly from selected Teach Yourself booklets
iPOD Video segments – short video clips that you can download to your video iPod for support on the move
3GP Mobile Phone downloads – short video clips that you can download to your mobile phone
Facts & Formulae Leaflets – electronic versions of the very popular leaflets distributed by the Higher Education Academy MSOR Subject Centre
Motivating Mathematics – videos showing practical applications of mathematics in everyday life
Staff Resources – a selection of case studies, resource packs, links to key reports and research on mathematics support, and other valuable resources for staff who offer mathematics support
Tags: b-learning, definição
Statistics: Your chance for happiness (or misery)
Posted by Armando Brito Mendes | Filed under estatística, materiais ensino
Bom artigo sobre a estatística como carreira com futuro
1. “I keep saying the sexy job in the next ten years will be statisticians.”
2. “AP Statistics was the most boring course I took in high school!”
3. “Honey, I know you are in excruciating pain, but which treatment do you want?”
4. “The best thing about being a statistician is that you get to play in everyone’s backyard.”
Tags: análise de dados
VideoLectures.Net
Posted by Armando Brito Mendes | Filed under estatística, Investigação Operacional, matemática, materiais ensino
montes de vídeos sobre imensos temas
VideoLectures.NET is a free and open access educational video lectures repository. The lectures are given by distinguished scholars and scientists at the most important and prominent events like conferences, summer schools, workshops and science promotional events from many fields of Science. All lectures, accompanying documents, information and links are systematically selected and classified through the editorial process taking into account also users’ comments.
Tags: data mining, grafos, inferência, inquéritos, intro IO, otimização, previsão, problemas
Data Preservation Alliance for the Social Sciences (Data-PASS)
Posted by Armando Brito Mendes | Filed under data sets
dados de inquéritos essencialmente
The Data Preservation Alliance for the Social Sciences (Data-PASS) is a voluntary partnership of organizations created to archive, catalog and preserve data used for social science research. Examples of social science data include: opinion polls; voting records; surveys on family growth and income; social network data; government statistics and indices; and GIS data measuring human activity.
Tags: inquéritos
The Zero Saga
Posted by Armando Brito Mendes | Filed under Investigação Operacional, matemática
debate um erro comum em IO x/zero=infinito
- Introduction
- A Common Fallacy
- Dividing by Zero Can Get You into Trouble!
- A Sample of the Grown-ups’ Arguments Insisting on Dividing by Zero
- What About Taking the Limit?
- Educating the Educators
- Act of Dividing by Zero Is a Meaningless Operation: Forget Its Result
- Origin of the Common Fallacy: Dividing by Zero
- The Need for Numbers
- The Two Notions of Zero
- Is Zero Either Positive or Negative?
- Is Zero an Even or Odd Number?
- Zero is “not there”
- Is 1 a Number or Just a “Unit” for Counting?
- Origin of Infinity and its Symbol
- Other Apparent Difficulties with Zero
- Descartes’ Representations of Numbers
- Mathematics Is for Unification and Extensions
- Genealogy of Rational and Irrational Numbers
- The Two Numbers Nature Cares Most: Inventions or Discoveries
- Equation: Its Structure, Roots, and Solutions
- SQRT(4) = +2, and – 2 right? Misplacement of the Sign
- 1 = 2 right? Confusions between Continuous and Discrete Variables
- 1 = 5 right? Confusions between Numbers and Operations
- Recurring Fractions Are Rational Numbers: Confusions between Series and Their Limits
- IEEE Special Floating Point
- 0 = 1 right?
- From Finger Numbers to Computer: The Most Fascinating Journey
- Errant Views and Calculator-assisted Experiment
- Notes, Further Readings, and References
- A Collection of JavaScript E-labs Learning Objects
Europe Mirror Site Collection
Tags: definição, otimização
ACM SIGKDD Webcasts
Posted by Armando Brito Mendes | Filed under materiais ensino
Ficheiros de som com explicações sobre data mining
A Tutorial on Learning Causal Influences
Exploring the Power of Links in Data Mining
Mining High-Throughput Biological Data
Towards Web-Scale Information Extraction
Tags: bioinformatica, captura de conhecimento, data mining
KDD Cup Center
Posted by Armando Brito Mendes | Filed under data sets
Annual Data Mining and Knowledge Discovery competition with Data
- KDD-Cup 2010 – Student performance evaluation
- KDD-Cup 2009 – Customer relationship prediction
- KDD-Cup 2008 – Breast cancer
- KDD-Cup 2007 – Consumer recommendations
- KDD-Cup 2006 – Pulmonary embolisms detection from image data
- KDD-Cup 2005 – Internet user search query categorization
- KDD-Cup 2004 – Particle physics; plus protein homology prediction
- KDD-Cup 2003 – Network mining and usage log analysis
- KDD-Cup 2002 – BioMed document; plus gene role classification
- KDD-Cup 2001 – Molecular bioactivity; plus protein locale prediction
- KDD-Cup 2000 – Online retailer website clickstream analysis
- KDD-Cup 1999 – Computer network intrusion detection
- KDD-Cup 1998 – Direct marketing for profit optimization
- KDD-Cup 1997 – Direct marketing for lift curve optimization
Tags: captura de conhecimento, data mining
Linear Optimization with Applications
Posted by Armando Brito Mendes | Filed under Investigação Operacional, matemática, materiais ensino
Uma boa página sobre programação linear
- Introduction & Summary
- Optimization-Modeling Process
- Ingredients of Optimization Problems and Their Classification
- Linear Programming (LP)
- Dual Problem: Its Construction and Economics Implications
- Learning From the Optimal Strategy
- Goal-Seeking Problem
- Exercise Your Knowledge to Enhance What You Have Learned (PDF)
- Linear Optimization Solvers to Download (free-of-charge),
Tags: otimização, problemas
Tools for Decision Analysis
Posted by Armando Brito Mendes | Filed under estatística, Investigação Operacional, materiais ensino
Teoria de Decisão
- Introduction & Summary
- Probabilistic Modeling: From Data to a Decisive Knowledge
- Decision Analysis: Making Justifiable, Defensible Decisions
- Elements of Decision Analysis Models
- Decision Making Under Pure Uncertainty: Materials are presented in the context of Financial Portfolio Selections.
- Limitations of Decision Making under Pure Uncertainty
- Coping with Uncertainties
- Decision Making Under Risk: Presentation is in the context of Financial Portfolio Selections under risk.
- Making a Better Decision by Buying Reliable Information: Applications are drawn from Marketing a New Product.
- Decision Tree and Influence Diagram
- Why Managers Seek the Advice From Consulting Firms
- Revising Your Expectation and its Risk
- Determination of the Decision-Maker’s Utility
- Utility Function Representations with Applications
- A Classification of Decision Maker’s Relative Attitudes Toward Risk and Its Impact
- The Discovery and Management of Losses
- Risk: The Four Letters Word
- Decision’s Factors-Prioritization & Stability Analysis
- Optimal Decision Making Process
- JavaScript E-labs Learning Objects
- A Critical Panoramic View of Classical Decision Analysis
- Exercise Your Knowledge to Enhance What You Have Learned (PDF)
- Appendex: A Collection of Keywords and Phrases
Tags: intro IO
