Massachusetts Institute of Technology

Displaying 241-280 of 450 results

  • White Papers // Jun 2010

    ATAC: Improving Performance and Programmability With On-Chip Optical Networks

    Given the current trends in multicore scaling, chips with 1000 cores may exist within the next 5 to 10 years. However, their promise of increased performance will only be reached if their inherent scaling and programming challenges are overcome. Meanwhile, recent advances in nanophotonic device manufacturing are making CMOS-integrated optics...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jun 2010

    Physical Layer-Aware Wireless Link Layer Protocols

    With wireless devices becoming ubiquitous, the problem of designing high performance and reliable wireless networks is of great importance today. Wireless links are characterized by a rapidly varying channel, requiring transmitters to dynamically adapt their transmit bit rate. The broadcast nature of radio also necessitates the use of medium access...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jun 2010

    Detecting Evolving Patterns of Self-Organizing Networks by Flow Hierarchy Measurement

    Hierarchies occur widely in evolving self-organizing ecological, biological, technological and social networks, but detecting and comparing hierarchies is difficult. Here the authors present a metric and technique to quantitatively assess the extent to which self-organizing directed networks exhibit a flow hierarchy. Flow hierarchy is a commonly observed but theoretically overlooked...

    Provided By Massachusetts Institute of Technology

  • White Papers // May 2010

    Report: NSF Workshop on Future Wireless Communication Research

    The wireless communication industry is a trillion-dollar, worldwide business that represents a substantial fraction of the global Gross Domestic Product. Over the past two decades, it has had a transformative impact on the society and has revolutionized almost all aspects of human interaction. These networks are inescapably intertwined with the...

    Provided By Massachusetts Institute of Technology

  • Webcasts // May 2010

    Disrupting Class: How Disruptive Innovation Will Change The Way The World Learns

    The author describes how the idea of disruptive innovation, developed by management researcher and author Clayton M. Christensen, can provide a fresh perspective on struggling education systems, and perhaps offer some solutions. Business history, the author tells his audience, is littered with cases of unlikely triumphs, when a smaller firm...

    Provided By Massachusetts Institute of Technology

  • Webcasts // May 2010

    Visual Overviews For Cultural Heritage: Interactive Exploration For Scholars In The Humanities, Arts, And Beyond

    A focus on designing technologies that allow the "Visualization of things not visible" has been at the center of the presenter's work over the past two decades. The presenter advocates the discovery of temporal patterns, relationships and clusters via an empowering user experience which enables discovery at a customizable pace...

    Provided By Massachusetts Institute of Technology

  • Webcasts // May 2010

    Humanistic Approaches To The Graphical Expression Of Interpretation

    It is in sharp contrast to a period of enlightenment and empirical science that a re-humanization of digital activities may now take place, says the author. Humanistic approaches are the motif against which she frames her assertion that "Interpretation" introduces an epistemological shift - which she identifies by the rubric...

    Provided By Massachusetts Institute of Technology

  • White Papers // May 2010

    From Relational Specifications to Logic Programs

    This paper presents a compiler from expressive, relational specifications to logic programs. Specifically, the compiler translates the Imperative Alloy specification language to Prolog. Imperative Alloy is a declarative, relational specification language based on first-order logic and extended with imperative constructs; Alloy specifications are traditionally not executable. In spite of this...

    Provided By Massachusetts Institute of Technology

  • White Papers // May 2010

    Transparent Detection of Computer Malware Using Virtualization

    In this paper, the author explores malware detection using a combination of virtualization- and storage-based intrusion detection techniques. By monitoring disk activity of a virtual machine and correlating that activity to knowledge of the filesystem structure on the virtual machine's disk, an intrusion detection system can react to file changes...

    Provided By Massachusetts Institute of Technology

  • Webcasts // May 2010

    TV Or Not TV: That?s Not The Question

    While the moderator cites evidence that traditional TV viewing is alive and well, her panelists line up to describe a TV industry under siege by digital competitors, and in the throes of major change. In the course of this session, this focuses on how television engages a young(er) audience, a...

    Provided By Massachusetts Institute of Technology

  • White Papers // May 2010

    Dynamic Knobs for Power-Aware Computing

    The authors present PowerDial, a system for dynamically adapting application behavior to execute successfully in the face of load and power fluctuations. PowerDial transforms static configuration parameters into dynamic knobs that the PowerDial control system can manipulate to dynamically trade off the accuracy of the computation in return for reductions...

    Provided By Massachusetts Institute of Technology

  • Webcasts // May 2010

    The Interaction Between Poverty, Growth And Democracy

    The presenter has remained a passionate advocate of reform since departing the presidency of Peru in 2006. In his home country, the presenter embodied the possibility of transformation, having risen from poverty in an Andean village to top political power, where he initiated a process of economic and social change...

    Provided By Massachusetts Institute of Technology

  • White Papers // May 2010

    Learning Gaussian Tree Models: Analysis of Error Exponents and Extremal Structures

    The problem of learning tree-structured Gaussian graphical models from independent and identically distributed (i.i.d.) samples is considered. The influence of the tree structure and the parameters of the Gaussian distribution on the learning rate as the number of samples increases is discussed. Specifically, the error exponent corresponding to the event...

    Provided By Massachusetts Institute of Technology

  • White Papers // May 2010

    Matching With Couples: Stability And Incentives In Large Markets

    Accommodating couples has been a longstanding issue in the design of centralized labor market clearinghouses for doctors and psychologists, because couples view pairs of jobs as complements. A stable matching may not exist when couples are present. The authors find conditions under which a stable matching exists with high probability...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Apr 2010

    Denialism: Media In The Age Of Disinformation

    A few hundred years after the Enlightenment, western civilization is rushing back to the Dark Ages. The causes are debatable, but, argue these science journalists, the public increasingly rejects the findings of science, from climate change to evolution, and is turning away from rationality and reason in general.

    Provided By Massachusetts Institute of Technology

  • White Papers // Apr 2010

    Robust Routing for Local Area Optical Access Networks

    One approach to providing the benefits of the high data rates afforded by optics is to attempt to implement traditional electronic and electro-optic approaches using optical technologies. In electronics, operations such as buffering, adding packets and dropping packets, or merging packet streams, are done with ease. In optics, however, buffering...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Apr 2010

    Lunch With A Laureate: Robert Merton

    Merton starts with the breakthrough work that earned him his laurels and which has recently stirred up controversy: derivative& there are "No mysteries" to these financial instruments, insists Merton they are neither complex nor threatening Derivatives are "Nothing more than insurance."

    Provided By Massachusetts Institute of Technology

  • Webcasts // Apr 2010

    International Media Flows: Global Media And Culture

    The moderator introduces five graduates of the Comparative Media Studies Program - in this final webcast, who share their views and experiences about the international/global dimension of the program. 'Comparative' can be interpreted across time - media through history, media in times of transition or across media - across platforms,...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Apr 2010

    Creativity And Collaboration In The Digital Age

    In a panel moderated by the presenter of this webcast, five former Comparative Media Studies (CMS) students discuss their personal experiences within the CMS program and the impact it has had on their understanding, interpretation, and implementation of creativity in the digital age.

    Provided By Massachusetts Institute of Technology

  • Webcasts // Apr 2010

    From Relief To Reconstruction ? Practical And Policy Challenge

    As the United Nations and worldwide NGOs face the challenges of providing basic services to the survivors of the January 2010 Haitian earthquake, the author scrutinizes what will ultimately be "Crucial to the outcome, in the Haitian context, of a successful recovery and rehabilitation by the Haitian people and for...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Apr 2010

    Giving Back: Finding The Best Way To Make A Difference

    The world's most intractable problems might be cracked if more of the "Brightest minds" could be tempted to work on them, asserts Bill Gates. Too many graduates of top universities like MIT find it infinitely more satisfying to deal in derivatives, he says, or lucrative areas of medical science like...

    Provided By Massachusetts Institute of Technology

  • White Papers // Apr 2010

    Minimizing Transmission Energy in Sensor Networks Via Trajectory Control

    Energy optimization is a significant component of Wireless Sensor Network (WSN) design. In this paper the authors consider transmission energy optimization in WSNs where messages are collected by a mobile receiver (collector). The collector is responsible for gathering data messages by choosing the optimal path that minimizes the total transmit...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Apr 2010

    Civics In Difficult Places

    Moderator wonders if these new digital forms are fundamentally liberating, providing users access to public spaces they might otherwise be denied. Moderator pursues this line of inquiry in a series of internet conversations with correspondents covering some of the world's most ravaged or oppressed regions.

    Provided By Massachusetts Institute of Technology

  • Webcasts // Apr 2010

    Transportation, The Built Environment And Greenhouse Gas Emissions In Developing Cities

    It seems that income and travel are inextricably linked. As communities gain wealth and prosperity, their travel footprint increases. Global population is projected to increase by nearly 2 billion people by 2030. If this newly added population drove just 3,000 kilometers a year, they would emit more tonnes of C02...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Apr 2010

    13 Bankers: The Wall Street Takeover And The Next Financial Meltdown

    In 13 Bankers Johnson, a former chief economist for the International Monetary Fund and co-author James Kwak cite historical precedents offers financial analysis to conclude that a second financial shock is inevitable unless the financial and political stranglehold held on Washington by the nation's biggest banks is broken.

    Provided By Massachusetts Institute of Technology

  • White Papers // Apr 2010

    Arguments for an Information-Centric Internetworking Architecture

    The current Internet architecture focuses on communicating entities, largely leaving aside the information to be exchanged among them. However, trends in communication scenarios show that WHAT is being exchanged becoming more important than WHO are exchanging information. Van Jacobson describes this as moving from interconnecting machines to interconnecting information. Any...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Apr 2010

    The Gutenberg Parenthesis: Oral Tradition And Digital Technologies

    In this webcast, the author makes the deliberately provocative case for a Gutenberg "Parenthesis" - a period marked by the reign of the printing press and isolated from the largely oral culture that came before, and the digitally shaped culture emerging today. The author, who finds an upside in society's...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Mar 2010

    A Policy On Leadership

    Ted Kelly walks a Sloan audience through the process of turning around a failing company. His formula? Develop two key things: a fact based analytical organization and great management teams that value people.

    Provided By Massachusetts Institute of Technology

  • White Papers // Mar 2010

    Institutional Foundations for Cyber Security: Current Responses and New Challenges

    This paper profiles institutions that are responsible for addressing threats to cyber security. Rather than focusing primarily on the private sector, the authors analyze key organizations at the national, international, and intergovernmental level. The purpose is to highlight emerging responses and challenges, while simultaneously evaluating the strengths and weaknesses of...

    Provided By Massachusetts Institute of Technology

  • White Papers // Mar 2010

    Physical Vs. Virtual Express Topologies with Low-Swing Links for Future Many-Core NoCs

    The number of cores present on-chip is increasing rapidly. The on-chip network that connects these cores needs to scale efficiently. The topology of on-chip networks is an important design choice that affects how these networks scale. Most current on-chip networks use 2-D mesh topologies which do not scale due to...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Mar 2010

    Modeling Human Mobility

    Researchers who wish to study mobility patterns might be reaching for your phone. Increasingly, cell phones are equipped with locational receivers (Global Positioning Systems or GPS) and their bread crumb trails are opening up entirely new ways to study and predict the dynamics of travel.

    Provided By Massachusetts Institute of Technology

  • White Papers // Mar 2010

    Characterizing Cyberspace: Past, Present and Future David Clark

    This paper is funded by the Office of Naval Research under award number N00014091059 and N000140810898. Any opinions, findings, and conclusions or recommendations expressed in this email are those of the author(s) and do not necessarily reflect the views of the Office of Naval Research. In general terms, most practitioners...

    Provided By Massachusetts Institute of Technology

  • White Papers // Mar 2010

    Whanau: A Sybil-Proof Distributed Hash Table

    Decentralized systems on the Internet are vulnerable to the "Sybil attack", in which an adversary creates numerous false identities to influence the system's behavior. This problem is particularly pernicious when the system is responsible for routing messages amongst nodes, as in the Distributed Hash Tables (DHT) which underlie many peer-to-peer...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Mar 2010

    Blended Learning Revisited

    Even when children are high achievers and facile with new technology, many seem gradually to lose their sense of wonder and curiosity, notes by one of the authors. Traditional educational methods may be smothering their innate drive to explore the world.

    Provided By Massachusetts Institute of Technology

  • White Papers // Mar 2010

    Secure Network Coding for Multi-Resolution Wireless Video Streaming

    Emerging practical schemes indicate that algebraic mixing of different packets by means of random linear network coding can increase the throughput and robustness of streaming services over wireless networks. However, concerns with the security of wireless video, in particular when only some of the users are entitled to the highest...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Mar 2010

    Transportation In Contemporary Society: A Complex Systems Approach

    In the nineteen fifties and sixties, students of transportation focused on building infrastructure and applied lessons from the physical sciences to designing mobility. Mobility was facilely linked to the engines of economic growth and expanding GDP. In time, that perspective was replaced by a focus on transportation systems and networks....

    Provided By Massachusetts Institute of Technology

  • White Papers // Mar 2010

    Throughput Optimization in Mobile Backbone Networks

    This paper describes new algorithms for throughput optimization in a mobile backbone network. This hierarchical communication framework combines mobile backbone nodes, which have superior mobility and communication capability, with regular nodes, which are constrained in mobility and communication capability. An important quantity of interest in mobile backbone networks is the...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Mar 2010

    Automotive Lightweighting As A Strategic Opportunity For India's Automotive Industry

    Suppose you could leapfrog 100 years of experience in the automotive industry and begin a new manufacturing epoch the strategic change you would make is to lightweight the vehicle, observes Charles Fine although steel has been the material of choice for many automotive components since the dawn of the automotive...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Mar 2010

    The Future Of Digital Public Media

    Public broadcasting executives and producers discuss their changing roles as digital technology transforms the news and entertainment industries, and provides individuals with powerful tools for shaping their communities. Moderator asks panelists to discuss ventures that illustrate new dimensions of public media.

    Provided By Massachusetts Institute of Technology

  • Webcasts // Mar 2010

    The Future Of Government-Citizen Engagement

    As the U.S. moves toward universal broadband access, look for increased government openness, new opportunities for civic engagement, and some dangers along the way, say these panelists. The author finds it exciting that "Government services are potentially a gateway to civic engagement."

    Provided By Massachusetts Institute of Technology

  • White Papers // Jun 2010

    Fully Homomorphic Encryption Over the Integers

    The authors describe a very simple "Somewhat homomorphic" encryption scheme using only elementary modular arithmetic, and use Gentry's techniques to convert it into a fully homomorphic scheme. Compared to Gentry's construction, the somewhat homomorphic scheme merely uses addition and multiplication over the integers rather than working with ideal lattices over...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Feb 2010

    Leading Through Adversity

    Few Companies have endured such hardship or risen to such heights in a brief span of time as Akamai Technologies. Paul Sagan tells how he became the CEO of this young firm and helped it survive and then flourish despite "Unimaginable adversity".

    Provided By Massachusetts Institute of Technology

  • Webcasts // Mar 2010

    Automotive Lightweighting As A Strategic Opportunity For India's Automotive Industry

    Suppose you could leapfrog 100 years of experience in the automotive industry and begin a new manufacturing epoch the strategic change you would make is to lightweight the vehicle, observes Charles Fine although steel has been the material of choice for many automotive components since the dawn of the automotive...

    Provided By Massachusetts Institute of Technology

  • Webcasts // Mar 2010

    A Policy On Leadership

    Ted Kelly walks a Sloan audience through the process of turning around a failing company. His formula? Develop two key things: a fact based analytical organization and great management teams that value people.

    Provided By Massachusetts Institute of Technology

  • Webcasts // Apr 2010

    13 Bankers: The Wall Street Takeover And The Next Financial Meltdown

    In 13 Bankers Johnson, a former chief economist for the International Monetary Fund and co-author James Kwak cite historical precedents offers financial analysis to conclude that a second financial shock is inevitable unless the financial and political stranglehold held on Washington by the nation's biggest banks is broken.

    Provided By Massachusetts Institute of Technology

  • Webcasts // Apr 2010

    Lunch With A Laureate: Robert Merton

    Merton starts with the breakthrough work that earned him his laurels and which has recently stirred up controversy: derivative& there are "No mysteries" to these financial instruments, insists Merton they are neither complex nor threatening Derivatives are "Nothing more than insurance."

    Provided By Massachusetts Institute of Technology

  • White Papers // May 2009

    Measuring And Understanding Hierarchy As An Architectural Element In Industry Sectors

    Hierarchy is a generic structure in which levels are asymmetrically ordered. In an industry setting, classic supply chains display strict hierarchy, whereas clusters of firms have linkages going in many different directions. The empirical measurement and model analysis together indicate that it is the low transaction specificity that drives down...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jul 2009

    Productivity Differences Between And Within Countries

    The authors document substantial within-country (cross-municipality) differences in incomes for a large number of countries in the Americas. A significant fraction of the within-country differences cannot be explained by observed human capital. They conjecture that the sources of within-country and between-country differences are related. As a first step towards a...

    Provided By Massachusetts Institute of Technology

  • White Papers // Nov 2010

    Whither Industrial Relations: Does It Have A Future In Post-Industrial Society

    Industrial relations are in trouble. It is in trouble both as a set of institutions and practices, linked to trade unions and collective bargaining and as a scholarly endeavor. The title of talk here, which the author was obliged to provide long in advance, is essentially a place holder for...

    Provided By Massachusetts Institute of Technology

  • White Papers // Oct 2010

    Post-2008 Crisis In Labor Standards: Prospects For Labor Regulation Around The World

    Over the course of the last thirty years, government policy has been increasingly dominated by neoclassical economic thought and neoliberal public policies. This has been especially true in the United States, but the trends are evident in one way or another in every part of the world. They reflect in...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jan 2011

    Frequency Estimation of Internet Packet Streams With Limited Space

    The authors consider a router on the Internet analyzing the statistical properties of a TCP/IP packet stream. A fundamental difficulty with measuring traffic behavior on the Internet is that there is simply too much data to be recorded for later analysis, on the order of gigabytes a second. As a...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jun 2009

    Income And Health Spending: Evidence From Oil Price Shocks

    Health expenditures as a share of GDP have more than tripled over the last half century. A common conjecture is that this is primarily a consequence of rising real per capita income, which more than doubled over the same period. The authors investigate this hypothesis empirically by instrumenting for local...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jul 2009

    Multiple Experiments For The Causal Link between The Quantity And Quality Of Children

    A longstanding question in the economics of the family is the relationship between family size and subsequent human capital formation and welfare. If there is a causal "Quantity-quality trade-off," then policies that discourage large families should lead to increased human capital and higher earnings. Ordinary least squares estimates and a...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jan 2011

    Targeting The Poor: Evidence From A Field Experiment In Indonesia

    This paper reports an experiment in 640 Indonesian villages that investigated three approaches to targeting the poor: Proxy-Means Tests (PMT), where a census of assets is used to predict consumption; community targeting, where villagers rank everyone from richest to poorest; and a hybrid. Defining poverty based on PPP$2 per-capita consumption,...

    Provided By Massachusetts Institute of Technology

  • White Papers // Dec 2009

    Temperature Shocks And Economic Growth: Evidence From The Last Half Century

    This paper uses use historical fluctuations in temperature within countries to identify its effects on aggregate economic outcomes. The authors find three primary results. First, higher temperatures substantially reduce economic growth in poor countries. Second, higher temperatures appear to reduce growth rates, not just the level of output. Third, higher...

    Provided By Massachusetts Institute of Technology

  • White Papers // May 2010

    Matching With Couples: Stability And Incentives In Large Markets

    Accommodating couples has been a longstanding issue in the design of centralized labor market clearinghouses for doctors and psychologists, because couples view pairs of jobs as complements. A stable matching may not exist when couples are present. The authors find conditions under which a stable matching exists with high probability...

    Provided By Massachusetts Institute of Technology

  • White Papers // Oct 2010

    Financial Integration, Entrepreneurial Risk And Global Dynamics

    This paper investigates within a two-country, general equilibrium, incomplete-markets model that focuses on the importance of idiosyncratic entrepreneurial risk - a risk that introduces, not only a precautionary motive for saving, but also a wedge between the interest rate and the marginal product of capital. The contribution is then to...

    Provided By Massachusetts Institute of Technology

  • White Papers // Feb 2011

    The China Syndrome: Local Labor Market Effects Of Import Competition In The United States

    Growing import exposure spurs a substantial increase in transfer payments to individuals and households in the form of unemployment insurance benefits, disability benefits, income support payments, and in-kind medical benefits. These transfer payments are two orders of magnitude larger than the corresponding rise in Trade Adjustment Assistance benefits. Nevertheless, transfers...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jun 2010

    Skills, Tasks And Technologies: Implications For Employment And Earnings

    A central organizing framework of the voluminous recent literature studying changes in the returns to skills and the evolution of earnings inequality is what the authors refer to as the canonical model, which elegantly and powerfully operationalizes the supply and demand for skills by assuming two distinct skill groups that...

    Provided By Massachusetts Institute of Technology

  • White Papers // Aug 2010

    The Growth Of Low Skill Service Jobs And The Polarization Of The U.S. Labor Market

    The authors offer a unified explanation and empirical analysis of the polarization of U.S. employment and wages between 1980 and 2005, and the concurrent growth of low skill service occupations. They attribute polarization to the interaction between consumer preferences, which favor variety over specialization, and the falling cost of automating...

    Provided By Massachusetts Institute of Technology

  • White Papers // Nov 2010

    "Whither Industrial Relations: Does It Have A Future In Post-Industrial Society"

    Industrial relations are in trouble. It is in trouble both as a set of institutions and practices, linked to trade unions and collective bargaining and as a scholarly endeavor. The title of talk here, which the author was obliged to provide long in advance, is essentially a place holder for...

    Provided By Massachusetts Institute of Technology

  • White Papers // Oct 2009

    Experiences and Challenges With Using CERT Data to Analyze International Cyber Security

    With the increasing interconnection of computer networks and sophistication of cyber attacks, it is important to understand the dynamics of such situations, especially in regards to cyber international relations. The Explorations in Cyber International Relations (ECIR) Data Dashboard Project is an initiative to gather worldwide cyber security data publicly provided...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jan 2011

    The Portuguese High Speed Rail Network; Relating Financing To Strategic And Operating Issues

    This paper describes the implementation of the Portuguese High Speed Rail (HSR) Network. The business model developed by RAVE for the PPP's related with the HSR infrastructure is described and discussed. Following a recently awarded research project (EXPRESS) aimed at studying the strategic aspects related with the implementation of HSR...

    Provided By Massachusetts Institute of Technology

  • White Papers // Dec 2010

    Price Of Airline Frequency Competition

    Frequency competition influences capacity allocation decisions in airline markets and has important implications to airline profitability and airport congestion. Market share of a competing airline is a function of its frequency share and the relationship between the two is pivotal for understanding the impacts of frequency competition on airline business....

    Provided By Massachusetts Institute of Technology

  • White Papers // Aug 2010

    Evolution Of The Lean Enterprise System: A Critical Synthesis And Agenda For The Future

    Many aerospace enterprises and other organizations have adopted a variety of management approaches to achieve continuous process improvement, enterprise change and transformation, such as the lean enterprise system, Total Quality Management (TQM), Theory Of Constraints (TOC), agile manufacturing, and Business Process Reengineering (BPR). Among them, the lean enterprise system, with...

    Provided By Massachusetts Institute of Technology

  • White Papers // Aug 2010

    Simulating The Impact Of Strategy Development Frameworks On Transportation Infrastructure System Performance

    This paper develops, through a simulation model, a deeper understanding of the relationship between transportation infrastructure strategy development frameworks and system performance. A strategy development framework for transportation can be characterized by the infrastructure ownership structures, cross-modal and cross-sectoral linkages, revenue sources, resource allocation decision-making processes, and geographic scales of...

    Provided By Massachusetts Institute of Technology

  • White Papers // Oct 2009

    Financial Development, Gender And Entrepreneurship

    Female entrepreneurs are much less frequent than male entrepreneurs. In this paper the authors investigate a possible culprit: access to financial services. They use a dataset with entrepreneurship rates by opportunity and by need from the Global Entrepreneurship Monitor and indicators of financial institutions from Beck, Demirguc-Kunt and Levine (2000)...

    Provided By Massachusetts Institute of Technology

  • White Papers // Feb 2010

    Efficient Cache Coherence on Manycore Optical Networks

    Ever since industry has turned to parallelism instead of frequency scaling to improve processor performance, multicore processors have continued to scale to larger and larger numbers of cores. Some believe that multicores will have 1000 cores or more by the middle of the next decade. However, their promise of increased...

    Provided By Massachusetts Institute of Technology

  • White Papers // Mar 2010

    Institutional Foundations for Cyber Security: Current Responses and New Challenges

    This paper profiles institutions that are responsible for addressing threats to cyber security. Rather than focusing primarily on the private sector, the authors analyze key organizations at the national, international, and intergovernmental level. The purpose is to highlight emerging responses and challenges, while simultaneously evaluating the strengths and weaknesses of...

    Provided By Massachusetts Institute of Technology

  • White Papers // Nov 2009

    Mobile Broadband and Implications for Broadband Competition and Adoption

    The growth of wireless mobile broadband has the potential to drive significant new growth in Internet applications, services, and equipment markets. It is likely to represent as important a change for the Internet as the transition from dial-up to broadband, fundamentally changing the landscape for broadband Internet access by adding...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jan 2010

    Secure Storage of Fingerprint Biometrics Using Slepian-Wolf Codes

    This paper describes a method to encode fingerprint biometrics securely for use, e.g., in encryption or access control. The system is secure because the stored data suffices to validate a probe fingerprint but not to recreate the original fingerprint biometric. Therefore, a breach in database security does not lead to...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jul 2009

    ATAC: On-Chip Optical Networks for Multicore Processors

    ˆe trend in modern microprocessor architectures is clear: multicore is here. As silicon resources become increasingly abundant, processor designers are able to place more and more cores on a chip: AMD and Intel have released 2-core chips with 4-core offerings coming soon. Forecasts show that by 2014, processors may contain...

    Provided By Massachusetts Institute of Technology

  • White Papers // Mar 2010

    Secure Network Coding for Multi-Resolution Wireless Video Streaming

    Emerging practical schemes indicate that algebraic mixing of different packets by means of random linear network coding can increase the throughput and robustness of streaming services over wireless networks. However, concerns with the security of wireless video, in particular when only some of the users are entitled to the highest...

    Provided By Massachusetts Institute of Technology

  • White Papers // Aug 2010

    Towards An Integration Of The Lean Enterprise System, Total Quality Management, Six Sigma And Related Enterprise Process Improvement Methods

    The lean enterprise system, total quality management, six sigma, theory of constraints, agile manufacturing, and business process reengineering have been introduced as universally applicable best methods to improve the performance of enterprise operations through continuous process improvement and systemic planned enterprise change. Generally speaking, they represent practice-based, rather than theory-grounded,...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jun 2009

    Disciplined Agility For Process Control & Automation

    Process Automation systems can impact the operating cost of manufacturing equipment, the safe control of large quantities of energy and the safety of dangerous substances used during manufacturing. The manufacturing segment expects greater automation of larger processes, increased capability of process automation systems, and higher quality of those systems. At...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jun 2009

    Lean Visual Management In An ERP/MES-Controlled Production Cell

    As a company grows, more and more effort is needed to control and coordinate operations. Typically, this is accomplished through an evolving collection of systems and processes, such as an Enterprise Resource Planning (ERP) system, but such systems also influence how a company does business, reviews performance, and communicate results....

    Provided By Massachusetts Institute of Technology

  • White Papers // Jun 2009

    Mitigating The Risk Of A New Workforce By Reducing Rework And Rightsizing On Hand Inventory

    Dramatically increasing the hourly workforce at a rapid pace to support accelerated product demand in an aircraft manufacturing facility in a short amount of time resulted in: increased rework, and increased part damage during assembly. The majority of rework results from simple workmanship mistakes from the new workforce. The approach...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jun 2009

    Understanding Enterprise Behavior Using Hybrid Simulation Of Enterprise Architecture

    Today, the design of business enterprises is much more art than science. The complex structure and behavior of enterprises makes it difficult to untangle cause and effect amidst its components and their relationships. In order for managers to understand how an enterprise's architecture affects its behavior, they need tools and...

    Provided By Massachusetts Institute of Technology

  • White Papers // Jun 2009

    Enabling Cultural Shifts: An Enterprise Approach Toward Lean Thinking

    The Supply Planning Operations team, in a large manufacturing firm, faced a future where their complexity of scope was increasing without an increase in resource levels. As an effort to improve both efficiency and effectively within the organization, they chose to adopt Lean Thinking as a method to streamline and...

    Provided By Massachusetts Institute of Technology

  • White Papers // May 2009

    A Screening Model To Explore Planning Decisions In Automotive Manufacturing Systems Under Demand Uncertainty

    Large-scale, complex engineering systems, as for automotive manufacturing, often require significant capital investment and resources for systems configuration. Furthermore, these systems operate in environments that are constantly changing due to shifts in macroeconomic, market demand and regulations, which can significantly influence systems' performance. It is often very difficult or prohibitively...

    Provided By Massachusetts Institute of Technology