university of pennsylvania

ZDNet Resources

• sort by:
• Relevance
• Date
• Popularity

Maximum Damage Malware Attack in Mobile Wireless Networks

Malware attacks constitute a serious security risk that threatens to slow down the large scale proliferation of wireless applications. As a first step towards thwarting this security threat, one seeks to quantify the maximum damage inflicted on the system owing to such outbreaks and identify the most vicious attacks. This...

Tags: University Of Pennsylvania, Mobile, Network, Malware, Wireless Network, Attack, Cyberthreats, Spyware, Adware & Malware, Security, Viruses And Worms, Wi-Fi, Wireless And Mobility

White papers 2009-08-01

XML Vectorization: A Column-Based XML Storage Model

The usual method for storing tables in a relational database is to store each tuple contiguously in secondary storage. A simple alternative is to store the columns contiguously, so that a table is represented as a set of vectors all of the same length. It has been shown that such...

Tags: University Of Pennsylvania, Storage, Column, XML, Software/Web Development, Web Development

White papers 2008-10-20

Validating Constraints in XML

The role of XML in data exchange is evolving from one of merely conveying the structure of data to one that also conveys its semantics. In particular, several proposals for key and foreign key constraints have recently appeared, and aspects of these proposals have been adopted within XMLSchema. Although several...

Tags: University Of Pennsylvania, Foreign Key, XML, Software/Web Development, Web Development

White papers 2008-10-20

Querying XML With Mixed and Redundant Storage

This paper examines some of the issues that arise in the process of XML publishing of mixed-storage proprietary data. It is argued that such data will reside typically in RDBMS's and/or LDAP, etc, augmented with a set of native XML documents. An additional challenge is to take advantage of redundancy...

Tags: University Of Pennsylvania, Schema, Storage, XML, Software/Web Development, Web Development

White papers 2008-10-18

Nanospheres moving faster than light?

In recent years, I don't think I've spent a month without a report about a new way to exceed the speed of light. Yesterday, University of Pennsylvania researchers announced a theoretical way to increase the speed of pulses of light which could bring optical computing closer to reality. The scientists...

Tags: Team, Bandwidth, Researcher, University Of Pennsylvania, Theory, Nanoparticle, Particle, Penn, Roland Piquepaille

Blog posts 2008-08-20

Trace-Driven Analysis of an Internet-Scale Cloud Computing Platform

In recent years, cloud computing have become a popular computing paradigm, where computation is moved away from personal computers or an individual application server to a "Cloud" of computers in the network. Users of the cloud only need to be concerned with the computing service being asked for, as the...

Tags: University Of Pennsylvania, Cluster Computing, Computer, Productivity, Cloud Computing, Virtualization, Hardware

White papers 2008-05-06

AntiECN Marking: A Marking Scheme for High Bandwidth Delay Connections

This paper describes a simple scheme that uses feedback from underutilized high capacity links to allow a TCP connection to aggressively increase its sending rate. The feedback is in the form of a single bit in the packet header and is given per packet. The scheme uses aggregate information to...

Tags: Bandwidth, University Of Pennsylvania, TCP, Scheme, Tcp/Ip, Routers & Switches, Networking, Network Technology

White papers 2008-01-01

Sub-Operating Systems: A New Approach to Application Security

Users regularly exchange apparently innocuous data files using email and ftp. While the users view these data as passive, there are situations when they are interpreted as code by some system application. In that case the data become "Active". Some examples of such data are Java, JavaScript and Microsoft Word...

Tags: University Of Pennsylvania, Application Security, Microsoft Word, E-mail, Security, Microsoft Office, Office Suites, Software, Online Communications

White papers 2008-01-01

Learning Fast Classifiers for Image Spam

Recently, spammers have proliferated "Image spam", emails which contain the text of the spam message in a human readable image instead of the message body, making detection by conventional content filters difficult. New techniques are needed to filter these messages. Their goal is to automatically classify an image directly as...

Tags: University Of Pennsylvania, Image, Cyberthreats, Spam, Security, Spam And Phishing

White papers 2007-06-12

Actin Network Architecture and Elasticity in Lamellipodia of Melanoma Cells

Cell migration is an essential element in the immune response on the one hand and in cancer metastasis on the other hand. The architecture of the actin network in lamellipodia determines the elasticity of the leading edge and contributes to the regulation of migration. The paper has implemented a new...

Tags: University Of Pennsylvania, Network, Elasticity, Migration, Cell Migration, Networking

White papers 2007-05-19

Out of Stock?: It Might Be Your Employee Payroll - Not Your Supply Chain - That's to Blame

Customers get lower satisfaction from their shopping experience when stores have too few employees and, more importantly, when stores lack employees who are knowledgeable about what's in the store. After analyzing the results of the study, the researchers suggest that a "Modest reallocation of the payroll budget among stores" in...

Tags: Supply Chain, Researcher, University Of Pennsylvania, Payroll, Payroll Solutions, Operational Accounting, Finance

White papers 2007-04-04

Distributed Uplink Scheduling in CDMA Networks

As mobile devices grow more powerful and diverse in the applications they run, it becomes increasingly desirable to give them some independence in scheduling their transmissions. The latest release of the CDMA2000 1xEV-DO system incorporates a number of mechanisms that afford mobile devices some flexibility in making uplink transmission decisions....

Tags: University Of Pennsylvania, CDMA, Mobile Device, Advertising & Promotion, Marketing

White papers 2006-12-13

Retail Store Execution: An Empirical Study

This paper describes a methodology by which a retailer can identify action steps that are likely to increase sales and customer satisfaction and demonstrate the methodology using proprietary data from a large retailer with over 500 stores. The paper uses monthly store-level data on a number of operational variables including...

Tags: University Of Pennsylvania, Retail Company, Customer Satisfaction, Retail, Sales Strategy, Product Marketing, Sales, Marketing

White papers 2006-12-01

Watching the brain under stress

According to this news release from the University of Pennsylvania School of Medicine, researchers have for the first time "visualized the effects of everyday psychological stress in a healthy human brain." They used the fMRI functional magnetic resonance imaging technique and found that there is a strong link between psychological...

Tags: University of Pennsylvania School of Medicine, University of Pennsylvania

Blog posts 2005-11-22

Nowhere to Run, Nowhere to Hide: The Online Privacy Issue

Debating online privacy isn't merely a philosophical exercise. Companies collect reams of information about visitors to their websites and about their customers' web-surfing ways. A person may be able to hide his or her visits to offbeat, or off-color, websites from his or her spouse, but can't hide them from...

Tags: University Of Pennsylvania, Online Privacy, Web Site Development, Government, Web Technology, Internet

White papers

University of Pennsylvania Streamlines Procurement, Saving $7.8 Million

The University of Pennsylvania Penn is a highly-regarded institution of higher learning - from its undergraduate, graduate, and professional schools to its interdisciplinary research and scholarship programs. The university wanted to enable mass supplier content by extending the breadth of the existing Web-based supplier exchange and enhance the value of...

Tags: University Of Pennsylvania, Oracle Corp., Supplier, Procurement, Channel Management, Purchasing & Procurement, Marketing, Business Operations

Case studies

Additional Resources

Biodegradable silk electronics to improve implants

Building on advancements in foldable ultra-thin flexible circuits, researchers at the University of Pennsylvania have developed electronics that almost completely dissolve inside the body by incorporating silk. by Chris Jablonski

Tags: Electronics, Chris Jablonski

Blog posts 2009-11-03

Will online education kill the university?

More to Harvard than the ClassesWhile I'm a big proponent of online and hybrid courses, I don't think that the residential college will go away entirely. People go to places like Harvard and Yale not just because they might learn more (and they might, depending on a lot of...

Tags: Harvard, education

Discussion threads 2009-09-16

Gallery: What's in the R&D pipeline?

R&D Magazine recently named its R&D 100 Awards, a compilation of the most innovative products in the pipeline. We've compiled a gallery of the lineup. Here's a look at a few of my favorites. You can find the entire list of winners here. ...

Tags: R&D, Research & Development, Business Operations, Larry Dignan

Blog posts 2009-08-20

PR firms battle over Google's inside track to White House

The Washington Post takes a look at Google's complex relationship with Washington. For starters, CEO Eric Schmidt was closely tied to the Obama campaign, and is part of Obama's Council of Advisors on Science and Technology. But with three Google executives having left the...

Tags: Google Inc., White House, Public Relations, Corporate Law, Marketing, Corporate Communications, Business Operations, Richard Koman

Blog posts 2009-06-05