creators_name: Arase, Yuki
creators_name: Xie, Xing
creators_name: Duan, Manni
creators_name: Hara, Takahiro
creators_name: Nishio, Shojiro
type: conference_item
datestamp: 2009-04-06 19:11:02
lastmod: 2009-04-07 14:02:36
metadata_visibility: show
title: A Game Based Approach to Assign Geographical Relevance to Web Images
ispublished: pub
full_text_status: public
pres_type: paper
abstract: Geographical context is very important for images. Millions of images on the Web have been already assigned latitude and longitude information. Due to the rapid proliferation of such images with geographical context, it is still difficult to effectively search and browse them, since we do not have ways to decide their relevance. In this paper, we focus on the geographical relevance of images, which is defined as to what extent the main objects in an image match landmarks at the location where the image was taken. Recently, researchers have proposed to use game based approaches to label large scale data such as Web images. However, previous works have not shown the quality of collected game logs in detail and how the logs can improve existing applications. To answer these questions, we design and implement a Web-based and multi-player game to collect human knowledge while people are enjoying the game. Then we thoroughly analyze the game logs obtained during a three week study with 147 participants and propose methods to determine the image geographical relevance. In addition, we conduct an experiment to compare our methods with a commercial search engine. Experimental results show that our methods dramatically improve image search relevance. Furthermore, we show that we can derive geographically relevant objects and their salient portion in images, which is valuable for a number of applications such as image location recognition.
date: 2009-04
pagerange: 811-811
event_title: 18th International World Wide Web Conference
event_location: Madrid, Spain
event_dates: April 20th-24th, 2009
event_type: conference
refereed: TRUE
citation: Arase, Yuki <http://www2009.eprints.org/view/author/Arase=3AYuki=3A=3A.html> and Xie, Xing <http://www2009.eprints.org/view/author/Xie=3AXing=3A=3A.html> and Duan, Manni <http://www2009.eprints.org/view/author/Duan=3AManni=3A=3A.html> and Hara, Takahiro <http://www2009.eprints.org/view/author/Hara=3ATakahiro=3A=3A.html> and Nishio, Shojiro <http://www2009.eprints.org/view/author/Nishio=3AShojiro=3A=3A.html> (2009) A Game Based Approach to Assign Geographical Relevance to Web Images. In: 18th International World Wide Web Conference, April 20th-24th, 2009, Madrid, Spain.
document_url: http://www2009.eprints.org/82/1/p811.pdf