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Displaying 1-46 out of 46 total
USense -- A Smartphone Middleware for Community Sensing
Found in: 2013 14th IEEE International Conference on Mobile Data Management (MDM)
By Vikas Agarwal,Nilanjan Banerjee,Dipanjan Chakraborty,Sumit Mittal
Issue Date:June 2013
pp. 56-65
There is tremendous interest in exploiting smartphones as a "community of sensors". It is envisioned that this community-driven smartphone sensor network has unprecedented potential to sense heterogeneous phenomena ranging from sound pollution to...
 
Context-Based Applications in Converged Networks: Beyond SIMPLE Presence
Found in: IEEE Pervasive Computing
By Arup Acharya,Nilanjan Banerjee,Dipanjan Chakraborty,Shachi Sharma
Issue Date:April 2013
pp. 59-67
The authors present a large-scale presence virtualization and federation platform that federates across heterogeneous presence domains, letting applications exploit cross-domain contextual data. The platform also provides a programmable interface for custo...
 
Building Activity Definitions to Recognize Complex Activities Using an Online Activity Toolkit
Found in: 2012 13th IEEE International Conference on Mobile Data Management (MDM)
By Saguna Saguna,Arkady Zaslavsky,Dipanjan Chakraborty
Issue Date:July 2012
pp. 344-347
One of the biggest challenges in the field of activity recognition is gathering training data for building activity inference models. To address this problem, we have developed an online activity toolkit for gathering activity data from online users. We us...
 
Energy-Efficient Continuous Activity Recognition on Mobile Phones: An Activity-Adaptive Approach
Found in: 2012 16th Annual International Symposium on Wearable Computers (ISWC)
By Zhixian Yan,Vigneshwaran Subbaraju,Dipanjan Chakraborty,Archan Misra,Karl Aberer
Issue Date:June 2012
pp. 17-24
Power consumption on mobile phones is a painful obstacle towards adoption of continuous sensing driven applications, e.g., continuously inferring individual's locomotive activities (such as 'sit', 'stand' or 'walk') using the embedded accelerometer sensor....
 
SAMMPLE: Detecting Semantic Indoor Activities in Practical Settings Using Locomotive Signatures
Found in: 2012 16th Annual International Symposium on Wearable Computers (ISWC)
By Zhixian Yan,Dipanjan Chakraborty,Archan Misra,Hoyoung Jeung,Karl Aberer
Issue Date:June 2012
pp. 37-40
We analyze the ability of mobile phone-generated accelerometer data to detect high-level (i.e., at the semantic level) indoor lifestyle activities, such as cooking at home and working at the workplace, in practical settings. We design a 2-Tier activity ext...
 
Occupancy detection in commercial buildings using opportunistic context sources
Found in: Pervasive Computing and Communications Workshops, IEEE International Conference on
By Sunil Kumar Ghai,Lakshmi V Thanayankizil,Deva P. Seetharam,Dipanjan Chakraborty
Issue Date:March 2012
pp. 463-466
Accurate occupancy information in commercial buildings can enable several useful applications such as energy management and dynamic seat allocation. Most prior efforts in this space depend on deploying an additional network of deeply coupled sensors to gat...
 
Towards a Robust Concurrent and Interleaved Activity Recognition of Mobile Users
Found in: Mobile Data Management, IEEE International Conference on
By Saguna,Arkady Zaslavsky,Dipanjan Chakraborty
Issue Date:June 2011
pp. 297-298
This paper proposes a situation and context-aware complex activity recognition system where we use on-body sensor information along with other context information to infer mobile user activities which are both concurrent and interleaved. We develop and val...
 
R-U-In? - Exploiting Rich Presence and Converged Communications for Next-Generation Activity-Oriented Social Networking
Found in: Mobile Data Management, IEEE International Conference on
By Nilanjan Banerjee, Dipanjan Chakraborty, Koustuv Dasgupta, Sumit Mittal, Seema Nagar, Saguna
Issue Date:May 2009
pp. 222-231
With the growing popularity of social networking,traditional Internet Service Providers (ISPs) and Telecom operators have both started exploring new opportunities to boost their revenue streams. The efforts have facilitated consumers to stay connected to t...
 
Programmable presence virtualization for next-generation context-based applications
Found in: Pervasive Computing and Communications, IEEE International Conference on
By Arup Acharya, Nilanjan Banerjee, Dipanjan Chakraborty, Koustuv Dasgupta, Archan Misra, Shachi Sharma, Xiping Wang, Charles P. Wright
Issue Date:March 2009
pp. 1-10
Presence, broadly defined as an event publish-notification infrastructure for converged applications, has emerged as a key mechanism for collecting and disseminating context attributes for next-generation services in both enterprise and provider domains. C...
 
Analyzing the Structure and Evolution of Massive Telecom Graphs
Found in: IEEE Transactions on Knowledge and Data Engineering
By Amit Anil Nanavati, Rahul Singh, Dipanjan Chakraborty, Koustuv Dasgupta, Sougata Mukherjea, Gautam Das, Siva Gurumurthy, Anupam Joshi
Issue Date:May 2008
pp. 703-718
With ever growing competition in telecommunications markets, operators have to increasingly rely on business intelligence to offer the right incentives to their customers. Existing approaches for telecom business intelligence have almost solely focused on ...
 
Enabling Runtime Adaptation ofWorkflows to External Events in Enterprise Environments
Found in: Web Services, IEEE International Conference on
By Dipanjan Chakraborty, Vinod V. Mankar, Amit A. Nanavati
Issue Date:July 2007
pp. 1112-1119
This paper presents the design and implementation of Heterogeneous Event Management Middleware (HEMM) that integrates events across multiple siloed workflow management systems (WFMS) in enterprises. Specifically, we address the issue where a high-level cha...
 
VOISERV: Creation and Delivery of Converged Services through Voice for Emerging Economies
Found in: A World of Wireless, Mobile and Multimedia Networks, International Symposium on
By Arun Kumar, Nitendra Rajput, Dipanjan Chakraborty, Sheetal K Agarwal, Amit Anil Nanavati
Issue Date:June 2007
pp. 1-8
WWW has made information accessible to computer users in various ways not imagined before. However; there is a huge pool ofpeople, especially in emerging economies, still untouched by this revolution and are either unaware of, or are unable or to join this...
 
Mapping Service Level Agreements in 3-tier settings
Found in: Web Services, IEEE International Conference on
By Siva Gurumurth, Parul A. Mittal, Amit A. Nanavati, Dipanjan Chakraborty
Issue Date:September 2006
pp. 701-708
<p>A telecom operator (
 
Efficient Querying and Resource Management Using Distributed Presence Information in Converged Networks
Found in: Mobile Data Management, IEEE International Conference on
By Dipanjan Chakraborty, Koustuv Dasgupta, Archan Misra
Issue Date:May 2006
pp. 28
Next-generation converged networks shall deliver many innovative services over the standardized SIPbased IMS signaling infrastructure. Several such services exploit the joint presence information of a consumer, i.e. SIP entity requesting a service, and a v...
 
Toward Distributed Service Discovery in Pervasive Computing Environments
Found in: IEEE Transactions on Mobile Computing
By Dipanjan Chakraborty, Anupam Joshi, Yelena Yesha, Tim Finin
Issue Date:February 2006
pp. 97-112
The paper proposes a novel distributed service discovery protocol for pervasive environments. The protocol is based on the concepts of peer-to-peer caching of service advertisements and group-based intelligent forwarding of service requests. It does not re...
 
Middleware Architecture for Evaluation and Selection of 3rd-Party Web Services for Service Providers
Found in: Web Services, IEEE International Conference on
By Dipanjan Chakraborty, Suraj Kumar Jaiswal, Archan Misray, Amit A. Nanavati
Issue Date:July 2005
pp. 647-654
This paper presents an architecture to facilitate efficient evaluation and selection of 3rd party web services for service providers. Most service provider architectures have primarily focused on providing web service front ends to legacy systems, aggregat...
 
Intelligent Agents Meet the Semantic Web in Smart Spaces
Found in: IEEE Internet Computing
By Harry Chen, Tim Finin, Anupam Joshi, Lalana Kagal, Filip Perich, Dipanjan Chakraborty
Issue Date:November 2004
pp. 69-79
A new smart meeting room system called EasyMeeting explores the use of multi-agent systems, Semantic Web ontologies, reasoning, and declarative policies for security and privacy. Building on an earlier pervasive computing system, EasyMeeting provides relev...
 
Contextual Collaboration: Platform and Applications
Found in: Services Computing, IEEE International Conference on
By Hui Lei, Dipanjan Chakraborty, Henry Chang, Michael J. Dikun, Terry Heath, Jenny S. Li, Nitin Nayak, Yasodhar Patnaik
Issue Date:September 2004
pp. 197-206
Contextual collaboration refers to people-to-people collaboration from within IT-enabled business operations. We have designed and implemented a middleware platform for enabling contextual collaboration, and built collaborative applications on top of the p...
 
Intelligent Agents Meet Semantic Web in a Smart Meeting Room
Found in: Autonomous Agents and Multiagent Systems, International Joint Conference on
By Harry Chen, Filip Perich, Dipanjan Chakraborty, Tim Finin, Anupam Joshi
Issue Date:July 2004
pp. 854-861
We describe a new smart meeting room system called EasyMeeting that explores the use of FIPA agent technologies, Semantic Web ontologies, logic reasoning, and security and privacy policies. Building on a pervasive computing system that we have developed pr...
 
Extending the Reach of Business Processes
Found in: Computer
By Dipanjan Chakraborty, Hui Lei
Issue Date:April 2004
pp. 78-80
PerCollab integrates communication devices with business processes and pushes tasks to users.
 
Pervasive Enablement of Business Processes
Found in: Pervasive Computing and Communications, IEEE International Conference on
By Dipanjan Chakraborty, Hui Lei
Issue Date:March 2004
pp. 87
People are an important part of many business processes. Current workflow-based implementations of business processes constrain users to the desktop environment; require them to periodically check for pending tasks; and do not support direct or synchronous...
 
A Component Based Architecture for Mobile Information Access
Found in: Database and Expert Systems Applications, International Workshop on
By Dipanjan Chakraborty, Filip Perich, Anupam Joshi, Timothy Finin, Yelena Yesha
Issue Date:September 2002
pp. 729
No summary available.
 
A Component Based Architecture for Mobile Information Access
Found in: Parallel Processing Workshops, International Conference on
By Chaitanya Pullela, Liang Xu, Dipanjan Chakraborty, Anupam Joshi
Issue Date:August 2000
pp. 65
Implicit in today's mobile information access scenarios is the assumption that the information required by the mobile host is readily available on the network and its location is “known” in a static fashion. There is a significant ongoing research on ways ...
 
Recognizing Concurrent and Interleaved Activities in Social Interactions
Found in: Dependable, Autonomic and Secure Computing, IEEE International Symposium on
By Saguna,Arkady Zaslavsky,Dipanjan Chakraborty
Issue Date:December 2011
pp. 230-237
Social networks constitute an important research area where users are involved in social interactions and inform each other of activities they perform. In this paper a complex activity recognition system (SEMACT) is proposed, built and validated. Different...
 
Complex activity recognition using context-driven activity theory and activity signatures
Found in: ACM Transactions on Computer-Human Interaction (TOCHI)
By Arkady Zaslavsky, Dipanjan Chakraborty, Saguna Saguna
Issue Date:December 2013
pp. 1-34
In pervasive and ubiquitous computing systems, human activity recognition has immense potential in a large number of application domains. Current activity recognition techniques (i) do not handle variations in sequence, concurrency and interleaving of comp...
     
Airavat: an automated system to increase transparency and accountability in social welfare schemes in India
Found in: Proceedings of the Sixth International Conference on Information and Communications Technologies and Development: Notes - Volume 2 (ICTD '13)
By Dipanjan Chakraborty, Pushpendra Singh, Vibhore Vardhan, Aaditeshwar Seth, Amarjeet Singh, Rajendran Narayanan, Siddhartha Asthana, Snigdha Kar, Vivek Srinivasan
Issue Date:December 2013
pp. 151-154
Activist groups have taken up information dissemination and feedback collection as a means of rights advocacy in India. However, it is not easy given the difficulty in procuring and disseminating information at a large scale. Beneficiaries are often not ab...
     
ConferenceSense: monitoring of public events using phone sensors
Found in: Proceedings of the 2013 ACM conference on Pervasive and ubiquitous computing adjunct publication (UbiComp '13 Adjunct)
By Amit Kumar, Archan Misra, Dipanjan Chakraborty, Pradipta De, Salil Kanhere, Sonali Batra, Vigneshwaran Subbaraju, Vikrant Nandakumar, Vinayak Naik
Issue Date:September 2013
pp. 1167-1174
We explore the use of a participatory sensing paradigm, where data generated from individual smartphones is used to extract and understand collective properties of temporary public gatherings and events (e.g., concerts & conferences). We focus on the u...
     
Combining smart phone and infrastructure sensors to improve security in enterprise settings
Found in: Proceedings of the 2013 ACM conference on Pervasive and ubiquitous computing adjunct publication (UbiComp '13 Adjunct)
By Anupam Joshi, Dipanjan Chakraborty, Palanivel Kodeswaran, Parikshit Sharma, Sougata Mukherjea
Issue Date:September 2013
pp. 1151-1158
There is an increasing trend among employees to bring in their own personal device to work, thereby making the enterprise more vulnerable to security attacks such as data leakage from phones. Additionally, users are increasingly running phone apps in a mix...
     
PUCAA: 1st international workshop on pervasive urban crowdsensing architecture and applications
Found in: Proceedings of the 2013 ACM conference on Pervasive and ubiquitous computing adjunct publication (UbiComp '13 Adjunct)
By Archan Misra, Dipanjan Chakraborty, Mani Srivastava, Nilanjan Banerjee, Sumit Mittal, Zhixian Yan
Issue Date:September 2013
pp. 1055-1062
Recently, as the community and businesses have begun to realize the power of jointly harnessing nomadic mobile sensing and selective infrastructure-based ambient sensing, we are beginning to see the emergence of a class of "urban crowdsensing" platforms th...
     
An exploration with online complex activity recognition using cellphone accelerometer
Found in: Proceedings of the 2013 ACM conference on Pervasive and ubiquitous computing adjunct publication (UbiComp '13 Adjunct)
By Archan Misra, Dipanjan Chakraborty, Karl Aberer, Sumit Mittal, Zhixian Yan
Issue Date:September 2013
pp. 199-202
We investigate the problem of online detection of complex activities (such as cooking, lunch, work at desk), i.e., recognizing them while the activities are being performed using parts of the sensor data. In contrast to prior work, where complex activity r...
     
Semantic trajectories: Mobility data computation and annotation
Found in: ACM Transactions on Intelligent Systems and Technology (TIST)
By Christine Parent, Dipanjan Chakraborty, Karl Aberer, Stefano Spaccapietra, Zhixian Yan
Issue Date:June 2013
pp. 1-38
With the large-scale adoption of GPS equipped mobile sensing devices, positional data generated by moving objects (e.g., vehicles, people, animals) are being easily collected. Such data are typically modeled as streams of spatio-temporal (x,y,t) points, ca...
     
Mining complex activities in the wild via a single smartphone accelerometer
Found in: Proceedings of the Sixth International Workshop on Knowledge Discovery from Sensor Data (SensorKDD '12)
By Angshu Rai, Dipanjan Chakraborty, Karl Aberer, Tri Kurniawan Wijaya, Zhixian Yan
Issue Date:August 2012
pp. 43-51
Complex activities are activities that are a combination of many simple ones. Typically, activities of daily living (ADLs) fall in this category. Complex activity recognition is an active area of interest amongst sensing and knowledge mining community toda...
     
Effectively modeling data from large-area community sensor networks
Found in: Proceedings of the 11th international conference on Information Processing in Sensor Networks (IPSN '12)
By Sebastian Cartier, Dipanjan Chakraborty, Karl Aberer, Saket Sathe
Issue Date:April 2012
pp. 95-96
Effectively managing the data generated by Large-area Community driven Sensor Networks (LCSNs) is a new and challenging problem. One important step for managing and querying such sensor network data is to create abstractions of the data in the form of mode...
     
SeMiTri: a framework for semantic annotation of heterogeneous trajectories
Found in: Proceedings of the 14th International Conference on Extending Database Technology (EDBT/ICDT '11)
By Christine Parent, Dipanjan Chakraborty, Karl Aberer, Stefano Spaccapietra, Zhixian Yan
Issue Date:March 2011
pp. 259-270
GPS devices allow recording the movement track of the moving object they are attached to. This data typically consists of a stream of spatio-temporal (x,y,t) points. For application purposes the stream is transformed into finite subsequences called traject...
     
OpenSense: open community driven sensing of environment
Found in: Proceedings of the ACM SIGSPATIAL International Workshop on GeoStreaming (GIS '10)
By Alcherio Martinoli, Boi Faltings, Dipanjan Chakraborty, Guillermo Barrenetxea, Karl Aberer, Lothar Thiele, Saket Sathe
Issue Date:November 2010
pp. 39-42
This paper outlines a vision for community-driven sensing of our environment. At its core, community sensing is a dynamic new form of mobile geosensor network. We believe that community sensing networks, in order to be widely deployable and sustainable, ne...
     
Automatic construction and multi-level visualization of semantic trajectories
Found in: Proceedings of the 18th SIGSPATIAL International Conference on Advances in Geographic Information Systems (GIS '10)
By Christine Parent, Dipanjan Chakraborty, Karl Aberer, Lazar Spremic, Stefano Spaccapietra, Zhixian Yan
Issue Date:November 2010
pp. 524-525
With the prevalence of GPS-embedded mobile devices, enormous amounts of mobility data are being collected in the form of trajectory - a stream of (x,y,t) points. Such trajectories are of heterogeneous entities - vehicles, people, animals, parcels etc. Most...
     
User interests in social media sites: an exploration with micro-blogs
Found in: Proceeding of the 18th ACM conference on Information and knowledge management (CIKM '09)
By Angshu Rai, Anupam Joshi, Dipanjan Chakraborty, Koustuv Dasgupta, Nilanjan Banerjee, Sameer Madan, Seema Nagar, Sumit Mittal
Issue Date:November 2009
pp. 1823-1826
Recent technological advances in mobile-based access to social networking platforms and facilities to update information in real{time (e.g. in Facebook) have allowed an individual's online presence to be as ephemeral and dynamic in nature, as her very thou...
     
Presence virtualization middleware for next-generation converged applications
Found in: Proceedings of the ACM/IFIP/USENIX international middleware conference companion on Middleware '08 Companion (Companion '08)
By Archan Misra, Arup Acharya, Charles Wright, Dipanjan Chakraborty, Koustuv Dasgupta, Nilanjan Banerjee, Shachi Sharma, Xiping Wang
Issue Date:December 2008
pp. 31-36
This paper describes the initial design of a scalable and client-programmable presence virtualization architecture.
     
R-U-in?: doing what you like, with people whom you like
Found in: Proceeding of the 17th international conference on World Wide Web (WWW '08)
By Dipanjan Chakraborty, Koustuv Dasgupta, Nilanjan Banerjee, Seema Nagar, Sumit Mittal
Issue Date:April 2008
pp. 1-7
This paper presents R-U-In? - a social networking application that leverages Web 2.0 and IMS-based Converged Networks technologies to create a rich next-generation service. R-U-In? allows a user to search (in real-time) and solicit participation of like-mi...
     
Organizing the unorganized - employing IT to empower the under-privileged
Found in: Proceeding of the 17th international conference on World Wide Web (WWW '08)
By Amit Anit Nanavati, Arun Kumar, Dipanjan Chakraborty, Nitendra Rajput, Sheetal Agarwal
Issue Date:April 2008
pp. 1-7
Various sectors in developing countries are typically dominated by the presence of a large number of small and micro-businesses that operate in an informal, unorganized manner. Many of these are single person run micro-businesses and cannot afford to buy a...
     
Sewnet -: a framework for creating services utilizing telecom functionality
Found in: Proceeding of the 17th international conference on World Wide Web (WWW '08)
By Dipanjan Chakraborty, Sougata Mukherjea, Sumit Mittal, Sunil Goyal
Issue Date:April 2008
pp. 1-7
With Telecom market reaching saturation in many geographies and revenues from voice calls decreasing, Telecom operators are trying to identify new sources of revenue. For this purpose, these operators can take advantage of their core functionalities like L...
     
Social ties and their relevance to churn in mobile telecom networks
Found in: Proceedings of the 11th international conference on Extending database technology: Advances in database technology (EDBT '08)
By Amit A. Nanavati, Anupam Joshi, Balaji Viswanathan, Dipanjan Chakraborty, Koustuv Dasgupta, Rahul Singh, Sougata Mukherjea
Issue Date:March 2008
pp. 1-3
Social Network Analysis has emerged as a key paradigm in modern sociology, technology, and information sciences. The paradigm stems from the view that the attributes of an individual in a network are less important than their ties (relationships) with othe...
     
On the changing face of service composition in telecom
Found in: Proceedings of the 2007 Workshop on Middleware for next-generation converged networks and applications (MNCNA '07)
By Dipanjan Chakraborty, Sougata Mukherjea, Sumit Mittal, Sunil Goyal
Issue Date:November 2007
pp. 1-6
With the emergence of converged networks, Telecom operators are looking at composing Telecom functionality with 3rd party offerings to provide rich, innovative value-added services to their customers. In parallel, Internet Content providers like Google and...
     
HSTP: hyperspeech transfer protocol
Found in: Proceedings of the 18th conference on Hypertext and hypermedia (HT '07)
By Amit Anil Nanavati, Arun Kumar, Dipanjan Chakraborty, Nitendra Rajput, Sheetal K. Agarwal
Issue Date:September 2007
pp. 67-76
HTTP provides a mechanism to connect web sites. Almost all sites have a large amount of hypertext content that provides connection to other sites in the World Wide Web. The success of the WWW can be partly attributed to the seamlessly browsable web that is...
     
Allia: alliance-based service discovery for ad-hoc environments
Found in: Proceedings of the second international workshop on Mobile commerce (WMC '02)
By Anupam Joshi, Dipanjan Chakraborty, Olga Ratsimor, Timothy Finin
Issue Date:September 2002
pp. 1-9
Static directory based service discovery is unsuitable for m-commerce in ad-hoc environments. In this paper, we present Allia: a peer-to-peer caching based and policy-driven agent-service discovery framework to facilitate cross-platform service discovery i...
     
Service discovery in the future for mobile commerce
Found in: Crossroads
By Dipanjan Chakraborty, Harry Chen
Issue Date:September 1994
pp. 18-24
Its potential sounds so appealing, but there are several challenges to overcome before true ubiquitous computing will garner global acceptance.
     
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