Search results for "content-based filtering"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
3	Nguyen Duy Phuong, Le Quang Thang, Tu Minh Phuong	A Graph-Based Method for Combining Collaborative and Content-Based Filtering.	PRICAI	2008	DBLP DOI BibTeX RDF	Collaborative filtering, content-based filtering, graph-based model, hybrid recommender systems
3	Gabriella Pasi, Gloria Bordogna, Robert Villa	A multi-criteria content-based filtering system.	SIGIR	2007	DBLP DOI BibTeX RDF	models, frameworks, content-based filtering, requirements gathering
3	Jong-Hun Kim, Un-Gu Kang, Jung-Hyun Lee	Content-Based Filtering for Music Recommendation Based on Ubiquitous Computing.	Intelligent Information Processing	2006	DBLP DOI BibTeX RDF	Ubiquitous Computing, OSGi, Content-based Filtering
2	István Pilászy, Domonkos Tikk	Recommending new movies: even a few ratings are more valuable than metadata.	RecSys	2009	DBLP DOI BibTeX RDF	NSVD1, RMSE, collaborative filtering, content-based filtering, matrix factorization, Netflix prize
2	Veronica Maidel, Peretz Shoval, Bracha Shapira, Meirav Taieb-Maimon	Evaluation of an ontology-content based filtering method for a personalized newspaper.	RecSys	2008	DBLP DOI BibTeX RDF	electronic newspaper, ontology, personalization, content-based filtering
2	Gang Luo, Philip S. Yu	Content-based filtering for efficient online materialized view maintenance.	CIKM	2008	DBLP DOI BibTeX RDF	materialized view maintenance, content-based filtering
2	George Lekakos, Petros Caravelas	A hybrid approach for movie recommendation.	Multimedia Tools Appl.	2008	DBLP DOI BibTeX RDF	Recommender systems, Collaborative filtering, Content-based filtering, Hybrid methods
2	Marco Degemmis, Pasquale Lops, Giovanni Semeraro	A content-collaborative recommender that exploits WordNet-based user profiles for neighborhood formation.	User Model. User-Adapt. Interact.	2007	DBLP DOI BibTeX RDF	Hybrid recommenders, Neighborhood formation in recommender systems, Machine learning, Collaborative filtering, User modeling, WordNet, Content-based filtering
2	James Salter, Nick Antonopoulos	CinemaScreen Recommender Agent: Combining Collaborative and Content-Based Filtering.	IEEE Intelligent Systems	2006	DBLP DOI BibTeX RDF	recommender systems, intelligent agents, decision support, information filtering
2	Tong Wang, Da-xin Liu, Xuan-Zuo Lin	Query Optimization Method Based on Automaton for Content-based Filtering.	AINA	2006	DBLP DOI BibTeX RDF
2	Yoshinori Hijikata, Kazuhiro Iwahama, Shogo Nishida	Content-based music filtering system with editable user profile.	SAC	2006	DBLP DOI BibTeX RDF	decision tree, user profile, customization, content-based filtering, music recommendation
2	Chung-Yuan Huang, Ji-Lung Hsieh, Chuen-Tsai Sun, Chia-Ying Cheng	Evaluating Subjective Compositions by the Cooperation Between Human and Adaptive Agents.	MICAI	2006	DBLP DOI BibTeX RDF	critiquing subjective data, content-based filtering, adaptive agent, interactive evolutionary computing, Music recommender system
2	Jong-Hun Kim, Kyung-Yong Jung, Jung-Hyun Lee	Hybrid Music Filtering for Recommendation Based Ubiquitous Computing Environment.	RSCTC	2006	DBLP DOI BibTeX RDF	Ubiquitous Computing, Recommendation System, Collaborative Filtering, Content-based Filtering
2	Byeong Man Kim, Qing Li, Chang Seok Park, Si Gwan Kim, Ju Yeon Kim	A new approach for combining content-based and collaborative filters.	J. Intell. Inf. Syst.	2006	DBLP DOI BibTeX RDF	Recommendation system, Collaborative filtering, Information filtering, Content-based filtering
2	Marios C. Angelides, Harry W. Agius	An MPEG-7 scheme for semantic content modelling and filtering of digital video.	Multimedia Syst.	2006	DBLP DOI BibTeX RDF	Semantic content modelling, Multimedia, MPEG-7, Content-based filtering, Digital video
2	Frank McCarey, Mel Ó Cinnéide, Nicholas Kushmerick	Rascal: A Recommender Agent for Agile Reuse.	Artif. Intell. Rev.	2005	DBLP DOI BibTeX RDF	Agile reuse, collaborative filtering, software reuse, content-based filtering, recommender agent, Agile processes
2	Kyung-Yong Jung, Dong-Hyun Park, Jung-Hyun Lee	Hybrid Collaborative Filtering and Content-Based Filtering for Improved Recommender System.	International Conference on Computational Science	2004	DBLP DOI BibTeX RDF
2	Justin Basilico, Thomas Hofmann	Unifying collaborative and content-based filtering.	ICML	2004	DBLP DOI BibTeX RDF
2	Kazuhiro Iwahama, Yoshinori Hijikata, Shogo Nishida	Content-Based Filtering System for Music Data.	SAINT Workshops	2004	DBLP DOI BibTeX RDF
2	Luo Si, Rong Jin	Unified filtering by combining collaborative filtering and content-based filtering via mixture model and exponential model.	CIKM	2004	DBLP DOI BibTeX RDF	unified filtering
2	Roberto Torres, Sean M. McNee, Mara Abel, Joseph A. Konstan, John Riedl	Enhancing digital libraries with TechLens+.	JCDL	2004	DBLP DOI BibTeX RDF	digital libraries, collaborative filtering, content-based filtering, hybrid recommender systems
2	Kai Yu, Volker Tresp, Shipeng Yu	A nonparametric hierarchical bayesian framework for information filtering.	SIGIR	2004	DBLP DOI BibTeX RDF	nonparametric bayesian modelling, collaborative filtering, content-based filtering, dirichlet process
2	Heung-Nam Kim, Hyun-Jun Kim, GeunSik Jo	Content-Based Document Recommendation in Collaborative Peer-to-Peer Network.	GCC	2004	DBLP DOI BibTeX RDF	Peer-to-Peer, Personalization, Content-based filtering
2	Elisa Bertino, Elena Ferrari, Andrea Perego	Content-based filtering of Web documents: the MaX system and the EUFORBIA project.	Int. J. Inf. Sec.	2003	DBLP DOI BibTeX RDF	Internet filtering, User credentials, Rating systems, Access control
2	Kyung-Yong Jung, Young-Joo Na, Jung-Hyun Lee	Creating User-Adapted Design Recommender System through Collaborative Filtering and Content Based Filtering.	EPIA	2003	DBLP DOI BibTeX RDF
2	Patrick Paulson, Aimilia Tzanavari	Combining Collaborative and Content-Based Filtering Using Conceptual Graphs.	Modelling with Words	2003	DBLP DOI BibTeX RDF
2	Kyung-Yong Jung, Jason J. Jung, Jung-Hyun Lee	Discovery of User Preference in Personalized Design Recommender System through Combining Collaborative Filtering and Content Based Filtering.	Discovery Science	2003	DBLP DOI BibTeX RDF
2	Su-Jeong Ko, Jung-Hyun Lee	User Preference Mining through Collaborative Filtering and Content Based Filtering in Recommender System.	EC-Web	2002	DBLP DOI BibTeX RDF
2	Gabriela Polcicova, Pavol Návrat	Semantic Similarity in Content-Based Filtering.	ADBIS	2002	DBLP DOI BibTeX RDF
2	Arnd Kohrs, Bernard Mérialdo	Improving collaborative filtering with multimedia indexing techniques to create user-adapting Web sites.	ACM Multimedia	1999	DBLP DOI BibTeX RDF	Web museum, user-adapting Web sites, collaborative filtering, image indexing, content-based filtering
1	Yolanda Blanco-Fernández, Martín López Nores, Alberto Gil-Solla, Manuel Ramos Cabrer, José J. Pazos Arias	Exploring synergies between content-based filtering and Spreading Activation techniques in knowledge-based recommender systems.	Inf. Sci.	2011	DBLP DOI BibTeX RDF
1	Eduardo Valle, Sandra Eliza Fontes de Avila, Antonio da Luz Jr., Fillipe Dias Moreira de Souza, Marcelo de M. Coelho, Arnaldo de Albuquerque Araújo	Content-Based Filtering for Video Sharing Social Networks	CoRR	2011	DBLP BibTeX RDF
1	Chia-Lung Hsieh	Toward Better Recommender System by Collaborative Computation with Privacy Preserved.	SAINT	2011	DBLP DOI BibTeX RDF	Recommender System, Privacy Preserving, Content-based Filtering, Secure Multiparty Computation
1	Veronica Maidel, Peretz Shoval, Bracha Shapira, Meirav Taieb-Maimon	Ontological content-based filtering for personalised newspapers: A method and its evaluation.	Online Information Review	2010	DBLP DOI BibTeX RDF
1		Content-Based Filtering.	Encyclopedia of Machine Learning	2010	DBLP DOI BibTeX RDF
1	Marco Vanetti, Elisabetta Binaghi, Barbara Carminati, Moreno Carullo, Elena Ferrari	Content-Based Filtering in On-Line Social Networks.	PSDML	2010	DBLP DOI BibTeX RDF
1	Manuel J. Barranco, Luis Martínez	A Method for Weighting Multi-valued Features in Content-Based Filtering.	IEA/AIE	2010	DBLP DOI BibTeX RDF
1	Pedro T. Isaías, Cristiane Casaca, Sara Pífano	Recommender Systems for Human Resources Task Assignment.	AINA	2010	DBLP DOI BibTeX RDF	Portuguese public inspection organisations, casebased reasoning, Recommender systems, collaborative filtering, content-based filtering, competences management
1	Kam Fung Yeung, Yanyan Yang, David Ndzi	Context-Aware News Recommender in Mobile Hybrid P2P Network.	CICSyN	2010	DBLP DOI BibTeX RDF	Bayesian Network, Collaborative filtering, Analytic Hierarchy Process, Content-based filtering, Proactively, Personalized Recommendation
1	Mustansar Ali Ghazanfar, Adam Prügel-Bennett	A Scalable, Accurate Hybrid Recommender System.	WKDD	2010	DBLP DOI BibTeX RDF	demographic recommender system, Recommender systems, collaborative filtering, content-based filtering
1	Ana Belén Barragáns-Martínez, Marta Rey-López, Enrique Costa-Montenegro, Fernando A. Mikic-Fonte, Juan C. Burguillo-Rial, Ana Peleteiro-Ramallo	Exploiting Social Tagging in a Web 2.0 Recommender System.	IEEE Internet Computing	2010	DBLP DOI BibTeX RDF	tag-based recommenders, recommendation systems, collaborative filtering, Web 2.0, folksonomy, content-based filtering, Internet computing
1	Mohammed Nazim Uddin, Jenu Shrestha, GeunSik Jo	Enhanced Content-Based Filtering Using Diverse Collaborative Prediction for Movie Recommendation.	ACIIDS	2009	DBLP DOI BibTeX RDF
1	Pasquale Lops, Marco de Gemmis, Giovanni Semeraro, Paolo Gissi, Cataldo Musto, Fedelucio Narducci	Content-Based Filtering with Tags: The FIRSt System.	ISDA	2009	DBLP DOI BibTeX RDF
1	Asela Gunawardana, Christopher Meek	A unified approach to building hybrid recommender systems.	RecSys	2009	DBLP DOI BibTeX RDF	recommender systems, collaborative filtering, content-based filtering, boltzmann machines, cold start
1	Ronald Bhuleskar, Anoop Sherlekar, Anala Pandit	Hybrid Spam E-mail Filtering.	CICSyN	2009	DBLP DOI BibTeX RDF	HSF, spam coefficient, legitimate coefficient, whitelist, forging, spam mean, Self Improvisation, self learning technique, Filter, Filtering, Spam, Email, Hybrid, content based filtering, Parallel model, blacklist
1	Shlomo Berkovsky, Tsvi Kuflik, Francesco Ricci	Cross-representation mediation of user models.	User Model. User-Adapt. Interact.	2009	DBLP DOI BibTeX RDF	Mediation of user models, Recommender systems, Collaborative filtering, User modeling, Content-based filtering
1	Stephan Spiegel, Jérôme Kunegis, Fang Li	Hydra: a hybrid recommender system [cross-linked rating and content information].	CIKM-CNIKM	2009	DBLP DOI BibTeX RDF	cross-linked data, hybrid recommender, matrix factorization
1	André Bergholz	AntiPhish: lessons learnt.	KDD Workshop on CyberSecurity and Intelligence Informatics	2009	DBLP DOI BibTeX RDF
1	Matthias Böhmer, Gernot Bauer	Improving the recommendation of mobile services by interpreting the user's icon arrangement.	Mobile HCI	2009	DBLP DOI BibTeX RDF	touch-based interaction, context-awareness, personalization
1	Seongwook Youn, Dennis McLeod	Improved spam filtering by extraction of information from text embedded image e-mail.	SAC	2009	DBLP DOI BibTeX RDF	ontology, feature selection, OCR, spam filtering, e-mail classification
1	Gökhan Dalkiliç, Devrim Sipahi, Mehmet Hilal Ozcanhan	A simple yet effective spam blocking method.	SIN	2009	DBLP DOI BibTeX RDF	SPF, spam blocking, spam
1	Nikolaos Nanas, Anne N. De Roeck, Manolis Vavalis	What Happened to Content-Based Information Filtering?.	ICTIR	2009	DBLP DOI BibTeX RDF
1	Jiming Chen, Yan Zhuang, Shiguang Ju, Jingui Pan	A XML Tree Based Leveled Filtering Method and Its Application.	T. Edutainment	2009	DBLP DOI BibTeX RDF	active leveled interest management, LevelFilter, motion LOD, XML
1	Asela Gunawardana, Christopher Meek	Tied boltzmann machines for cold start recommendations.	RecSys	2008	DBLP DOI BibTeX RDF	recommender systems, collaborative filtering, content-based filtering, boltzmann machines, cold start
1	Andreas Jagersberger, Klemens Waldhör	Dynamic Packaging using a Cluster-based Demographic Filtering Approach.	ENTER	2008	DBLP DOI BibTeX RDF	travel recommendation, demographic filtering, collaborative filtering, user model, content based filtering
1	Choochart Haruechaiyasak, Chaianun Damrongrat	Article Recommendation Based on a Topic Model for Wikipedia Selection for Schools.	ICADL	2008	DBLP DOI BibTeX RDF	educational Web contents, recommender system, Wikipedia, Latent Dirichlet Allocation (LDA), content-based filtering
1	Lucas Drumond, Rosario Girardi	A multi-agent legal recommender system.	Artif. Intell. Law	2008	DBLP DOI BibTeX RDF	Legal information systems, Ontologies, Semantic Web, Multi-agent systems, Recommender systems, Content-based filtering
1	Xuan Nhat Lam, Thuc Vu, Trong Duc Le, Anh Duc Duong	Addressing cold-start problem in recommendation systems.	ICUIMC	2008	DBLP DOI BibTeX RDF	three-way aspect model, triadic aspect model, collaborative filtering, information filtering, cold-start, aspect model
1	Markus Weimer, Alexandros Karatzoglou, Alex J. Smola	Adaptive collaborative filtering.	RecSys	2008	DBLP DOI BibTeX RDF	collaborative filtering, structured estimation
1	Kazuyoshi Yoshii, Masataka Goto, Kazuhiro Komatani, Tetsuya Ogata, Hiroshi G. Okuno	An Efficient Hybrid Music Recommender System Using an Incrementally Trainable Probabilistic Generative Model.	IEEE Transactions on Audio, Speech & Language Processing	2008	DBLP DOI BibTeX RDF
1	Ming Zhang, Weichun Wang, Xiaoming Li	A Paper Recommender for Scientific Literatures Based on Semantic Concept Similarity.	ICADL	2008	DBLP DOI BibTeX RDF	Recommender, Collaborative tag, Web2.0, Semantic concept
1	Sunghoon Cho, Moo-hun Lee, Bong-hoi Kim, Eui-in Choi	A Recommendation Using Item Quality.	KES-AMSTA	2008	DBLP DOI BibTeX RDF
1	Alexander Felfernig, Bartosz Gula, Gerhard Leitner, Marco Maier, Rudolf Melcher, Erich Teppan	Persuasion in Knowledge-Based Recommendation.	PERSUASIVE	2008	DBLP DOI BibTeX RDF	Decision Phenomena, Recommender Systems, Persuasion
1	Ian Rose, Rohan Murty, Peter R. Pietzuch, Jonathan Ledlie, Mema Roussopoulos, Matt Welsh	Cobra: Content-based Filtering and Aggregation of Blogs and RSS Feeds.	NSDI	2007	DBLP BibTeX RDF
1	Michael P. O'Mahony, Barry Smyth	A recommender system for on-line course enrolment: an initial study.	RecSys	2007	DBLP DOI BibTeX RDF	academic advising, course recommender system, collaborative filtering, content-based filtering
1	Sandra Clara Gadanho, Nicolas Lhuillier	Addressing uncertainty in implicit preferences.	RecSys	2007	DBLP DOI BibTeX RDF	implicit preferences, reliability, recommender
1	D. Sculley, Gabriel Wachman	Relaxed online SVMs for spam filtering.	SIGIR	2007	DBLP DOI BibTeX RDF	splogs, support vector machines, blogs, spam filtering
1	Chee Yong Chan, Yuan Ni	Efficient xml data dissemination with piggybacking.	SIGMOD Conference	2007	DBLP DOI BibTeX RDF	pub/sub system, XML, annotation, XPath, data dissemination, piggybacking
1	Leo Iaquinta, Anna Lisa Gentile, Pasquale Lops, Marco Degemmis, Giovanni Semeraro	A Hybrid Content-Collaborative Recommender System Integrated into an Electronic Performance Support System.	HIS	2007	DBLP DOI BibTeX RDF
1	Xin Wan, Toshie Ninomiya, Toshio Okamoto	Development of an intellectual e-NOTEBOOK system for group learning support.	ICALT	2007	DBLP DOI BibTeX RDF
1	Silvia Bianchi, Ajoy Kumar Datta, Pascal Felber, Maria Gradinariu	Stabilizing Peer-to-Peer Spatial Filters.	ICDCS	2007	DBLP DOI BibTeX RDF	stabilizing dynamic R-trees, peer-to-peer, self-organization, publish/subscribe, Content-based routing
1	Heung-Nam Kim, Inay Ha, Jin-Guk Jung, GeunSik Jo	User Preference Modeling from Positive Contents for Personalized Recommendation.	Discovery Science	2007	DBLP DOI BibTeX RDF
1	Panagiotis Symeonidis	Content-based Dimensionality Reduction for Recommender Systems.	GfKl	2007	DBLP DOI BibTeX RDF
1	Liang Lu, Jeffrey Horton, Reihaneh Safavi-Naini, Willy Susilo	Transport Layer Identification of Skype Traffic.	ICOIN	2007	DBLP DOI BibTeX RDF
1	Panagiotis Symeonidis, Alexandros Nanopoulos, Yannis Manolopoulos	Feature-Weighted User Model for Recommender Systems.	User Modeling	2007	DBLP DOI BibTeX RDF
1	Matthew Garden, Gregory Dudek	Mixed Collaborative and Content-Based Filtering with User-Contributed Semantic Features.	AAAI	2006	DBLP BibTeX RDF
1	Sean M. McNee, Nishikant Kapoor, Joseph A. Konstan	Don't look stupid: avoiding pitfalls when recommending research papers.	CSCW	2006	DBLP DOI BibTeX RDF	human-recommender interaction, recommender systems, digital libraries, personalization, collaborative filtering, information seeking, content-based filtering
1	Chuen-Tsai Sun, Ji-Lung Hsieh, Chung-Yuan Huang	Using Evolving Agents to Critique Subjective Music Compositions.	CIS	2006	DBLP DOI BibTeX RDF	critiquing subjective data, content-based filtering, adaptive agent, interactive evolutionary computing, Music recommender system
1	Emmanuelle Anceaume, Maria Gradinariu, Ajoy Kumar Datta, Gwendal Simon, Antonino Virgillito	A Semantic Overlay for Self- Peer-to-Peer Publish/Subscribe.	ICDCS	2006	DBLP DOI BibTeX RDF
1	Shu-Feng Pan, Ji-Hyun Lee	eDAADe: An Adaptive Recommendation System for Comparison and Analysis of Architectural Precedents.	AH	2006	DBLP DOI BibTeX RDF
1	Syed Sibte Raza Abidi, Yan Zeng	Intelligent Information Personalization Leveraging Constraint Satisfaction and Association Rule Methods.	Canadian Conference on AI	2006	DBLP DOI BibTeX RDF
1	R. Goud, Kees M. van Hee, R. D. J. Post, Jan Martijn E. M. van der Werf	Petriweb: A Repository for Petri Nets.	ICATPN	2006	DBLP DOI BibTeX RDF
1	Jue Wang, Zhiwei Li, Jinyi Yao, Zengqi Sun, Mingjing Li, Wei-Ying Ma	Adaptive User Profile Model and Collaborative Filtering for Personalized News.	APWeb	2006	DBLP DOI BibTeX RDF
1	Gloria Bordogna, Marco Pagani, Gabriella Pasi, Robert Villa	A Flexible News Filtering Model Exploiting a Hierarchical Fuzzy Categorization.	FQAS	2006	DBLP DOI BibTeX RDF
1	Kyung-Yong Jung, Hee-Joung Hwang, Un-Gu Kang	Constructing Full Matrix Through Naïve Bayesian for Collaborative Filtering.	ICIC	2006	DBLP DOI BibTeX RDF
1	Xun Wang, Biwei Li	Intelligent Knowledge Recommendation System Based on Web Log and Cache Data.	ICWL	2006	DBLP DOI BibTeX RDF
1	José Ramon Méndez, Florentino Fdez-Riverola, Fernando Díaz, Eva Lorenzo Iglesias, Juan M. Corchado	A Comparative Performance Study of Feature Selection Methods for the Anti-spam Filtering Domain.	Industrial Conference on Data Mining	2006	DBLP DOI BibTeX RDF
1	Kyung-Yong Jung	Content-Based Image Filtering for Recommendation.	ISMIS	2006	DBLP DOI BibTeX RDF
1	Zhiyun Xin, Jizhong Zhao, Ming Gu, Jiaguang Sun	Integrating Collaborate and Content-Based Filtering for Personalized Information Recommendation.	CIS	2005	DBLP DOI BibTeX RDF
1	Hahn-Ming Lee, Chi-Chun Huang, Tzu-Ting Kao	Personalized Course Navigation Based on Grey Relational Analysis.	Appl. Intell.	2005	DBLP DOI BibTeX RDF	personalized course navigation, Coursebot, weighted grey relational analysis measure, content-based filtering, grey relational analysis
1	Naohiro Hayashibara, Xavier Défago, Makoto Takizawa, Takuya Katayama	Information Propagation on the phi Failure Detector.	DEXA Workshops	2005	DBLP DOI BibTeX RDF
1	Matthew Garden, Gregory Dudek	Semantic Feedback for Hybrid Recommendations in Recommendz.	EEE	2005	DBLP DOI BibTeX RDF
1	Giovanni Semeraro, Pasquale Lops, Marco Degemmis	WordNet-based User Profiles for Neighborhood Formation in Hybrid Recommender Systems.	HIS	2005	DBLP DOI BibTeX RDF
1	Olga Papaemmanouil, Ugur Çetintemel	SemCast: Semantic Multicast for Content-based Data Dissemination.	ICDE	2005	DBLP DOI BibTeX RDF
1	Alexandre Desmarais-Frantz, Esma Aïmeur	Community Cooperation in Recommender Systems.	ICEBE	2005	DBLP DOI BibTeX RDF
1	N. Churcharoenkrung, Yang Sok Kim, Byeong Ho Kang	Dynamic Web Content Filtering based on User's Knowledge.	ITCC	2005	DBLP DOI BibTeX RDF
1	Hyeonjae Cheon, Hongchul Lee	Opinion Leader Based Filtering.	ICADL	2005	DBLP DOI BibTeX RDF
1	Marco Avvenuti, Alessio Vecchio, Giovanni Turi	A Cross-Layer Approach for Publish/Subscribe in Mobile Ad Hoc Networks.	MATA	2005	DBLP DOI BibTeX RDF
1	Kyung-Yong Jung, Jung-Hyun Lee	User Preference Mining through Hybrid Collaborative Filtering and Content-Based Filtering in Recommendation System.	IEICE Transactions	2004	DBLP BibTeX RDF
1	Ricardo Carreira, Jaime M. Crato	Evaluating adaptive user profiles for news classification.	IUI	2004	DBLP DOI BibTeX RDF	user profiles, content-based filter, bayesian classifier, mobile and ubiquitous computing