2011 -2012 Research Projects@Hunter contributed by Prof Felisa Vázquez-Abad Department of Computer Science Hunter College Felisa Vázquez-Abad
Our Research • Mathematical Models: understanding relations and dynamics • Computer Simulation: virtual reality and experimentation • Optimization: decision making, management and “learning” • Statistics: Analysis and computer learning Felisa Vázquez-Abad
On Public Transport • A system for “collective taxis” • Is the public bike system suitable for Manhattan?
How many idle taxis? How long the wait? Felisa Vázquez-Abad
Collective Taxis ¡ Work done for the Paris metropolitan area (show results of Lioris, Cohen and la Fortellez). ¡ Control algorithms: sensors, data analytics, optimization ¡ Computer Simulations to assess impact: ¡ Idle times statistics, passenger delays, route statistics ¡ Pricing methods ¡ Environmental impact ¡ Feasibility as alternative transportation system for five boroughs of NYC? Felisa Vázquez-Abad
Five Boroughs of New York • Reduce trajectory length travelled per public transport vehicle • Provide adequate service at reasonable prices, at low cost • Environmental impact Felisa Vázquez-Abad
Extension: Central/Mixed control model ¡ Central operation: read current traffic conditions and schedule vehicles ¡ Reservations: handheld devices for communication (optimal allocation) ¡ Optimization: acceptance of clients and reservation rules based on threshold policies (sensitivity analysis) ¡ Economic modeling: study pricing models with priorities, relationship between cost and thresholds ¡ Intelligence: IT-driven self-awareness Felisa Vázquez-Abad
The Public Bikes Are they suitable for Manhattan? Felisa Vázquez-Abad
How it works • Short distance, shared bikes • Membership for residents, or daily/weekly passes for tourists • Any time, anywhere, for “free” • Targets healthy population, movements within city centers • Environmental impact, health impact, economic impact from shared resources Felisa Vázquez-Abad
Improving Public Bikes ¡ Routing and information. Software development for information panels and to keep track of data: users patterns, financial info, bike’s data, etc. ¡ Stations. Use optimization techniques to start with a simple plan with a view to grow: use current city developments. ¡ Availability. Use simulations to assess flow patterns for users: centrifugal, centripetal or balanced demand. Develop learning algorithms. ¡ Redistribution problem: Optimization algorithms for redistribution: intelligent incentives? ¡ Vandalism. Use sensors to target individual bikes and control misuse. Learning algorithm to adapt. ¡ Pricing. Use mathematical models to decide on a pricing system. Felisa Vázquez-Abad
On Public Health • Emergency Departments • Understanding the impact of generic drugs
Emergency Departments • Doctors/nurses allocated to areas (low and high acuity), patients are directed to areas by the triage nurses • Overcrowded, long waiting causes patient deterioration • Technical improvements, staff and space are expensive • Fast Track: a low cost alternative Felisa Vázquez-Abad
Standard Emergency Department Model p 3 Non-trauma p 1 Triage LA p 7 p 2 HA Trauma treatment p 4 p 5 Felisa Vázquez-Abad p 6 p 8 Discharge or admitted to another ward
Fast Track Emergency Department Model p 4 Non-trauma p 1 Triage p 7 FT p 8 p 2 p 9 LA p 3 Trauma p 10 Trauma treatment HA p 5 p 6 Felisa Vázquez-Abad p 11 Discharge or admitted to another ward
Research Questions Testing in real hospitals: expensive and may be misleading. • Does the FT decrease patient waiting times? • What is the impact on patient health? • Are the costs of operation significantly different? • Is it suitable to all hospitals? • What are the critical conditions of arriving patients that favor the use of a FT? • How should resources be diverted to FT? Active resource management (machine learning) • How would it integrate with the new health care system in our country? Felisa Vázquez-Abad
Generic Drugs Good or evil? Felisa Vázquez-Abad
Reasonable, isn’t it? ¡ Brand names: pharmaceuticals charge high cost for their product ¡ Generics are manufactured using same active ingredients, considerably cheaper ¡ “In the long run, you save money if you buy generics” Felisa Vázquez-Abad
Reasonable, isn’t it? ¡ Brand names: pharmaceuticals charge high cost for their product ¡ Development: extensive testing (dose, vehicle…) ¡ Generics are manufactured using same active ingredients, considerably cheaper ¡ “In the long run, you save money if you buy generics” Felisa Vázquez-Abad
Reasonable, isn’t it? ¡ Brand names: pharmaceuticals charge high cost for their product ¡ Development: extensive testing (dose, vehicle…) ¡ Generics are manufactured using same active ingredients, considerably cheaper ¡ Not tested, manufactured cheaply ¡ “In the long run, you save money if you buy generics” Felisa Vázquez-Abad
Reasonable, isn’t it? ¡ Brand names: pharmaceuticals charge high cost for their product ¡ Development: extensive testing (dose, vehicle…) ¡ Generics are manufactured using same active ingredients, considerably cheaper ¡ Not tested, manufactured cheaply ¡ “In the long run, you save money if you buy generics” ¡ Effectiveness, economic consequences, who pays? Felisa Vázquez-Abad
Scientific Approach • Mathematical model for the financial process involving generics and brand names • Scientific evidence of effectiveness • Scientific evidence of real costs • Statistical studies, interviews with medical professionals, real data • Incorporate the role of insurance companies • Incorporate the role of government and public health Felisa Vázquez-Abad
Suburban Microfarms A Sustainable Operating System for Sustenance Felisa Vázquez-Abad
The Problem § Food production technology, 20 th Century § Oil: efficient energy production, speeds process, large scale § Mathematical models and profit-driven business § The IOSS and Mac. Donald § 50% World population in cities § From > 45% to < 3% Americans in agriculture in 4 decades (5 million needed in 2020) § Serious health, financial and environmental problems We had all the answers, but the questions have changed Felisa Vázquez-Abad
§ Minimize use of non-renewable energy (harvesting energy) § Fertilizers and composting § Plot size and scalability (complexity) § Small farms (motivate young people) § Community resilience (from the soil to the table) GINGER Microfarm“El Chilhuacle” in the suburbs of Melbourne, Australia An initiative by Ari Fainchtein
Computer Science, Mathematics, Optimization • • • Don’t go back to ancient farming Ginger: a model for an Operating System (open data source) New data structure and communication language Current world connected via computers Sensor technologies, internet: new models for supply chain Going beyond into transformational discipline (academic degrees) A New Transformational Science “Because we have a Hammer, everything looks like a nail” Felisa Vázquez-Abad
• The Melbourne airport fleet: how many buses should they have? • Why is the price of copper cyclic? • Intelligent batteries for active energy management Other Problems
• Multidisciplinary projects for joint collaboration • CUNY ideally placed to get involved in community development • Research at all levels: never too soon, never too late to be creative Thank you! Felisa Vázquez-Abad
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