Modern Information Retrieval
Labeling images with a computer game
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Distinctive Image Features from Scale-Invariant Keypoints
International Journal of Computer Vision
WICON '06 Proceedings of the 2nd annual international workshop on Wireless internet
Scalable near identical image and shot detection
Proceedings of the 6th ACM international conference on Image and video retrieval
Crowdsourcing user studies with Mechanical Turk
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Get another label? improving data quality and data mining using multiple, noisy labelers
Proceedings of the 14th ACM SIGKDD international conference on Knowledge discovery and data mining
Distributed image search in camera sensor networks
Proceedings of the 6th ACM conference on Embedded network sensor systems
Automated Flower Classification over a Large Number of Classes
ICVGIP '08 Proceedings of the 2008 Sixth Indian Conference on Computer Vision, Graphics & Image Processing
SoundSense: scalable sound sensing for people-centric applications on mobile phones
Proceedings of the 7th international conference on Mobile systems, applications, and services
iScope: personalized multi-modality image search for mobile devices
Proceedings of the 7th international conference on Mobile systems, applications, and services
SurroundSense: mobile phone localization via ambience fingerprinting
Proceedings of the 15th annual international conference on Mobile computing and networking
MAUI: making smartphones last longer with code offload
Proceedings of the 8th international conference on Mobile systems, applications, and services
A survey of mobile phone sensing
IEEE Communications Magazine
Dynamic pricing incentive for participatory sensing
Pervasive and Mobile Computing
Crowdsourcing for search and data mining
ACM SIGIR Forum
CrowdDB: answering queries with crowdsourcing
Proceedings of the 2011 ACM SIGMOD International Conference on Management of data
TagSense: a smartphone-based approach to automatic image tagging
MobiSys '11 Proceedings of the 9th international conference on Mobile systems, applications, and services
Mobile computing: the next decade
ACM SIGMOBILE Mobile Computing and Communications Review
Expertise ranking using activity and contextual link measures
Data & Knowledge Engineering
Crowdsourcing for information retrieval
ACM SIGIR Forum
The case for context-aware compression
Proceedings of the 12th Workshop on Mobile Computing Systems and Applications
Answering search queries with CrowdSearcher
Proceedings of the 21st international conference on World Wide Web
CommunitySourcing: engaging local crowds to perform expert work via physical kiosks
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Satellites in our pockets: an object positioning system using smartphones
Proceedings of the 10th international conference on Mobile systems, applications, and services
Medusa: a programming framework for crowd-sensing applications
Proceedings of the 10th international conference on Mobile systems, applications, and services
CDAS: a crowdsourcing data analytics system
Proceedings of the VLDB Endowment
SNARF: a social networking-inspired accelerator remoting framework
Proceedings of the first edition of the MCC workshop on Mobile cloud computing
CrowdER: crowdsourcing entity resolution
Proceedings of the VLDB Endowment
Paying in kind for crowdsourced work in developing regions
Pervasive'12 Proceedings of the 10th international conference on Pervasive Computing
AutoMan: a platform for integrating human-based and digital computation
Proceedings of the ACM international conference on Object oriented programming systems languages and applications
GeoCrowd: enabling query answering with spatial crowdsourcing
Proceedings of the 20th International Conference on Advances in Geographic Information Systems
Acc: generic on-demand accelerations for neighbor discovery in mobile applications
Proceedings of the 10th ACM Conference on Embedded Network Sensor Systems
Extending search to crowds: a model-driven approach
Search Computing
Lowering the barriers to large-scale mobile crowdsensing
Proceedings of the 14th Workshop on Mobile Computing Systems and Applications
An introduction to crowdsourcing for language and multimedia technology research
PROMISE'12 Proceedings of the 2012 international conference on Information Retrieval Meets Information Visualization
Web Data Management through Crowdsourcing Upon Social Networks
ASONAM '12 Proceedings of the 2012 International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2012)
ECIR'13 Proceedings of the 35th European conference on Advances in Information Retrieval
Crowdsourcing for information retrieval: introduction to the special issue
Information Retrieval
MediaScope: selective on-demand media retrieval from mobile devices
Proceedings of the 12th international conference on Information processing in sensor networks
Demo abstract: mediascope: selective on-demand media retrieval from mobile devices
Proceedings of the 12th international conference on Information processing in sensor networks
An online cost sensitive decision-making method in crowdsourcing systems
Proceedings of the 2013 ACM SIGMOD International Conference on Management of Data
YaLi: a crowdsourcing plug-in for NERD
Proceedings of the 36th international ACM SIGIR conference on Research and development in information retrieval
Using stranger as sensors: temporal and geo-sensitive question answering via social media
Proceedings of the 22nd international conference on World Wide Web
If you see something, swipe towards it: crowdsourced event localization using smartphones
Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing
Understanding the coverage and scalability of place-centric crowdsensing
Proceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing
FOCUS: clustering crowdsourced videos by line-of-sight
Proceedings of the 11th ACM Conference on Embedded Networked Sensor Systems
Proceedings of the 11th ACM Conference on Embedded Networked Sensor Systems
GeoTruCrowd: trustworthy query answering with spatial crowdsourcing
Proceedings of the 21st ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Maximizing the number of worker's self-selected tasks in spatial crowdsourcing
Proceedings of the 21st ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
Crowdsourcing-assisted query structure interpretation
IJCAI'13 Proceedings of the Twenty-Third international joint conference on Artificial Intelligence
No "one-size fits all": towards a principled approach for incentives in mobile crowdsourcing
Proceedings of the 15th Workshop on Mobile Computing Systems and Applications
Personal and Ubiquitous Computing
MPaaS: Mobility prediction as a service in telecom cloud
Information Systems Frontiers
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Mobile phones are becoming increasingly sophisticated with a rich set of on-board sensors and ubiquitous wireless connectivity. However, the ability to fully exploit the sensing capabilities on mobile phones is stymied by limitations in multimedia processing techniques. For example, search using cellphone images often encounters high error rate due to low image quality. In this paper, we present CrowdSearch, an accurate image search system for mobile phones. CrowdSearch combines automated image search with real-time human validation of search results. Automated image search is performed using a combination of local processing on mobile phones and backend processing on remote servers. Human validation is performed using Amazon Mechanical Turk, where tens of thousands of people are actively working on simple tasks for monetary rewards. Image search with human validation presents a complex set of tradeoffs involving energy, delay, accuracy, and monetary cost. CrowdSearch addresses these challenges using a novel predictive algorithm that determines which results need to be validated, and when and how to validate them. CrowdSearch is implemented on Apple iPhones and Linux servers. We show that CrowdSearch achieves over 95% precision across multiple image categories, provides responses within minutes, and costs only a few cents.