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Displaying 1-18 out of 18 total
Cost-Aware Mobile Web Browsing
Found in: IEEE Pervasive Computing
By Sindhura Chava,Rachid Ennaji,Jay Chen,Lakshminarayanan Subramanian
Issue Date:July 2012
pp. 34-42
A cost-aware mobile browsing framework automatically adapts Web content as a function of a user's data pricing plan and usage levels, reducing costs. This also enhances browsing experiences by forwarding the best possible version of a page for a given data...
 
Measuring Similarity between Interval-Valued Fuzzy Numbers Using Quadratic-mean operator
Found in: Education Technology and Training & Geoscience and Remote Sensing
By Shi-Jay Chen
Issue Date:December 2008
pp. 833-837
Interval-valued fuzzy numbers are very useful for representing a decision maker’s evaluations of parameters or variables associated with real-world problems. This study presents a new similarity measure that is based on the quadratic-mean operator to solve...
 
Similarity Measure between Generalized Fuzzy Numbers Using Quadratic-Mean Operator
Found in: Intelligent Information Technology Applications, 2007 Workshop on
By Shi-Jay Chen
Issue Date:December 2008
pp. 440-444
This presents a novel similarity measure that is based on the quadratic-mean operator to solve similarity measurement problems that involve generalized fuzzy numbers. Some properties of the proposed similarity measure are demonstrated, and 36 sets of gener...
 
Routing in an Internet-Scale Network Emulator
Found in: Modeling, Analysis, and Simulation of Computer Systems, International Symposium on
By Jay Chen, Diwaker Gupta, Kashi V. Vishwanath, Alex C. Snoeren, Amin Vahdat
Issue Date:October 2004
pp. 275-283
One of the primary challenges facing scalable network emulation and simulation is the overhead of storing network-wide routing tables or computing appropriate routes on a per-packet basis. We present an approach to routing table calculation and storage bas...
 
CommonTies: a context-aware nudge towards social interaction
Found in: Proceedings of the companion publication of the 17th ACM conference on Computer supported cooperative work & social computing (CSCW Companion '14)
By Azza Abouzied, Jay Chen
Issue Date:February 2014
pp. 1-4
Urbanization has created transient, ethnically-varied, and densely-populated communities where meaningful human contact is difficult. Urban social norms such as "civil inattention" --- a deliberate display of unwillingness to become more familiar with stra...
     
TroTro: web browsing and user interfaces in rural Ghana
Found in: Proceedings of the Sixth International Conference on Information and Communication Technologies and Development: Full Papers - Volume 1 (ICTD '13)
By Laura Dan Li, Jay Chen
Issue Date:December 2013
pp. 185-194
The quality of Internet connections around the world is extremely varied and very poor in rural areas despite high enthusiasm and investment of resources in computers. This study focuses on Internet users at schools and Internet cafés in rural Ghana. ...
     
Computing security in the developing world: a case for multidisciplinary research
Found in: Proceedings of the 5th ACM workshop on Networked systems for developing regions (NSDR '11)
By Eric A. Brewer, Jay Chen, Joyojeet Pal, Matthias Vallentin, Philipp Gutheim, Saurabh Panjwani, Shaddi Hasan, Yahel Ben-David
Issue Date:June 2011
pp. 39-44
Technology users in the developing world face a varied and complex set of computer security concerns. These challenges are deeply tied to a range of contextual factors including poor infrastructure, non-traditional usage patterns, and different attitudes t...
     
TCP behavior in sub packet regimes
Found in: Proceedings of the ACM SIGMETRICS joint international conference on Measurement and modeling of computer systems (SIGMETRICS '11)
By Bryan Ford, Janardhan Iyengar, Jay Chen, Lakshminarayanan Subramanian
Issue Date:June 2011
pp. 157-158
Many network links in developing regions operate in the sub-packet regime, an environment where the typical per-flow throughput is less than 1 packet per round-trip time. TCP and other common congestion control protocols break down in the sub-packet regime...
     
Design and implementation of contextual information portals
Found in: Proceedings of the 20th international conference companion on World wide web (WWW '11)
By Jay Chen, Jonathan Ledlie, Lakshminarayanan Subramanian, Russell Power
Issue Date:March 2011
pp. 453-462
This paper presents a system for enabling offline web use to satisfy the information needs of disconnected communities. We describe the design, implementation, evaluation, and pilot deployment of an automated mechanism to construct Contextual Information P...
     
Analyzing and accelerating web access in a school in peri-urban India
Found in: Proceedings of the 20th international conference companion on World wide web (WWW '11)
By David Hutchful, Jay Chen, Lakshminarayanan Subramanian, William Thies
Issue Date:March 2011
pp. 443-452
While computers and Internet access have growing penetration amongst schools in the developing world, intermittent connectivity and limited bandwidth often prevent them from being fully utilized by students and teachers. In this paper, we make two contribu...
     
SMS-based web search for low-end mobile devices
Found in: Proceedings of the sixteenth annual international conference on Mobile computing and networking (MobiCom '10)
By Eric Brewer, Jay Chen, Lakshmi Subramanian
Issue Date:September 2010
pp. 125-136
Short Messaging Service (SMS) based mobile information services have become increasingly common around the world, especially in emerging regions among users with low-end mobile devices. This paper presents the design and implementation of SMSFind, an SMS-b...
     
Hermes: data transmission over unknown voice channels
Found in: Proceedings of the sixteenth annual international conference on Mobile computing and networking (MobiCom '10)
By Aditya Dhananjay, Ashlesh Sharma, Jay Chen, Jinyang Li, Lakshminarayanan Subramanian, Michael Paik, Trishank Karthik Kuppusamy
Issue Date:September 2010
pp. 113-124
While the cellular revolution has made voice connectivity ubiquitous in the developing world, data services are largely absent or are prohibitively expensive. In this paper, we present Hermes1, a point-to-point data connectivity solution that works by modu...
     
ELMR: efficient lightweight mobile records
Found in: Proceedings of the 1st ACM workshop on Networking, systems, and applications for mobile handhelds (MobiHeld '09)
By Arvind Kumar, Jay Chen, Lakshminarayanan Subramanian, Michael Paik
Issue Date:August 2009
pp. 101-104
In this paper we describe Efficient Lightweight Mobile Records (ELMR), a system that provides a practical protocol for accessing and updating database records remotely from low-end mobile devices using the 140-byte SMS channel.
     
SMS-based contextual web search
Found in: Proceedings of the 1st ACM workshop on Networking, systems, and applications for mobile handhelds (MobiHeld '09)
By Brendan Linn, Jay Chen, Lakshminarayanan Subramanian
Issue Date:August 2009
pp. 101-104
SMS-based web search is different from traditional web search in that the final response to a search query is limited to a very small number of bytes (typically 1-2 SMS messages, 140 bytes each). SMS-based web search is also a non-interactive search proble...
     
Epothecary: cost-effective drug pedigree tracking and authentication using mobile phones
Found in: Proceedings of the 1st ACM workshop on Networking, systems, and applications for mobile handhelds (MobiHeld '09)
By Jay Chen, Lakshminarayanan Subramanian, Michael Paik
Issue Date:August 2009
pp. 101-104
Counterfeit and expired pharmaceuticals are a significant problem in the developing world, constituting up to 80% of stock on pharmacy shelves. This is due both to poor existing controls and to lack of supporting infrastructure on which to build such contr...
     
ELMR: lightweight mobile health records
Found in: Proceedings of the 35th SIGMOD international conference on Management of data (SIGMOD '09)
By Amey Purandare, Arthur Meacham, Arvind Kumar, Jay Chen, Lakshminarayanan Subramanian
Issue Date:June 2009
pp. 3-4
Cell phones are increasingly being used as common clients for a wide suite of distributed, database-centric healthcare applications in developing regions. This is particularly true for rural developing regions where the bulk of the healthcare is handled by...
     
RuralCafe: web search in the rural developing world
Found in: Proceedings of the 18th international conference on World wide web (WWW '09)
By Jay Chen, Jinyang Li, Lakshminarayanan Subramanian
Issue Date:April 2009
pp. 66-66
The majority of people in rural developing regions do not have access to the World Wide Web. Traditional network connectivity technologies have proven to be prohibitively expensive in these areas. The emergence of new long-range wireless technologies provi...
     
Web search and browsing behavior under poor connectivity
Found in: Proceedings of the 27th international conference extended abstracts on Human factors in computing systems (CHI EA '09)
By Jay Chen, Kentaro Toyama, Lakshminarayanan Subramanian
Issue Date:April 2009
pp. 1-4
Web search and browsing have been streamlined for a comfortable experience when the network connection is fast. Existing tools, however, are not optimized for scenarios where connectivity is poor, as is the case for many users in developing regions where f...
     
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