Results 221 to 230 of about 13,032 (260)

Adaptive Scoring Method based on Freshness for Fresh Information Retrieval

International Workshop on Challenges in Web Information Retrieval and Integration, 2005
Fresh information is important for real business. In order to realize fresh information retrieval, we need not only to collect documents in a short time, but also to rank the results in the suitable order. However, conventional ranking methods are not suited for fresh information retrieval because they ignore temporal value of information.
Minoru Uehara, Nobuyoshi Sato, Yoshifumi Sakai   +2 more
openaire   +1 more source

Information freshness and popularity in mobile caching

2017 IEEE International Symposium on Information Theory (ISIT), 2017
We propose a model for mobile caching in which the rate of requests for content is dependent on the popularity and the freshness of the information. We model popularity based on the history of requests and freshness based on the age of the content. We consider a discrete time (slotted) system in which new packets arrive at a limited capacity cache at ...
Clement Kam, Sastry Kompella, Gam D. Nguyen, Jeffrey E. Wieselthier, Anthony Ephremides   +4 more
openaire   +1 more source

Maintaining Information Freshness under Jamming

IEEE INFOCOM 2019 - IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), 2019
In UAV communication with a ground control station, mission success requires maintaining the freshness of the received information, especially when the communication faces hostile interference. We model this problem as a game between a UAV transmitter and an adversarial interferer.
Andrey Garnaev, Wuyang Zhang, Jing Zhong, Roy D. Yates   +3 more
openaire   +1 more source

FTF_IDF scoring for fresh information retrieval

18th International Conference on Advanced Information Networking and Applications, 2004. AINA 2004., 2004
For most businesses, fresh information retrieval is very important. However, it is difficult for conventional search engines based on centralized architecture to retrieve really fresh information, because they take a long time to collect documents via Web robots.
Nobuyoshi Sato, Minoru Uehara, Yoshifumi Sakai   +2 more
openaire   +1 more source

A case study on freshness based scoring for fresh information retrieval

IEEE International Symposium on Communications and Information Technology, 2004. ISCIT 2004., 2005
For most businesses, fresh information retrieval is very important. However, it is difficult for conventional search engines based on centralized architecture to retrieve really fresh information, because they take a long time to collect documents via Web robots.
N. Sato, M. Uehara, Y. Sakai
openaire   +1 more source

The information flaneur

Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, 2011
We introduce the information flaneur as a new human-centred view on information seeking that is grounded in interdisciplinary research. We use the metaphor of the urban flaneur making sense of a city as an inspiring lens that brings together diverse perspectives.
Marian Dörk, Sheelagh Carpendale, Carey Williamson   +2 more
openaire   +1 more source

Adaptive Calculation of Scores for Fresh Information Retrieval

11th International Conference on Parallel and Distributed Systems (ICPADS'05), 2005
In business, we need fresh information. In order to realize fresh information retrieval, we need not only to collect documents in a short time, but also to rank the results in the suitable order. However, conventional ranking methods are not suited for fresh information retrieval because they ignore temporal value of information.
Minoru Uehara, Nobuyoshi Sato, Yoshifumi Sakai   +2 more
openaire   +1 more source

A distributed search engine for fresh information retrieval

12th International Workshop on Database and Expert Systems Applications, 2002
In information retrieval of web pages, we usually use search engines. A conventional search engine has the problem that the update interval is very long because it is based on centralized architecture, which collects documents by using robots. So, we have developed a distributed search engine, cooperative search engine (CSE) in order to reduce the ...
Nobuyoshi Sato, Minoru Uehara, Yoshifumi Sakai, Hideki Mori   +3 more
openaire   +1 more source

Gathering Information in Sensor Networks for Synchronized Freshness

2017 14th Annual IEEE International Conference on Sensing, Communication, and Networking (SECON), 2017
Sensor networks and the Internet of Things motivate novel classes of job scheduling problems where each "job" corresponds to downloading some data object from the sensor network, i.e., querying the network for some portion of its current state. The purpose of scheduling a set of jobs may be to support decision tasks, where the user will make a choice ...
Elahe Vahdani, Amotz Bar-Noy, Matthew P. Johnson 0001, Tarek F. Abdelzaher   +3 more
openaire   +1 more source

Optimizing Information Freshness in Wireless Networks.

2023
Age of Information (AoI) is a performance metric that can be used to measure the freshness of information. Since its inception, it has captured the attention of the research community and is now an area of active research. By its definition, AoI measures the elapsed time period between the present time and the generation time of the information. AoI is
openaire   +1 more source