Search results for "Social context"

Hits ?▲	Authors	Title	Venue	Year	Link	Author keywords
3	Brett Adams, Dinh Q. Phung, Svetha Venkatesh	Sensing and using social context.	TOMCCAP	2008	DBLP DOI BibTeX RDF	social context, Multimedia browsing
3	Takuo Suganuma, Kazuhiro Yamanaka, Yoshikazu Tokairin, Hideyuki Takahashi, Norio Shiratori	A Ubiquitous Supervisory System Based on Social Context Awareness.	AINA	2008	DBLP DOI BibTeX RDF	Supervisory system, Ontology, Context awareness, Social context
3	Munmun De Choudhury, Hari Sundaram, Ajita John, Dorée D. Seligmann	Dynamic prediction of communication flow using social context.	Hypertext	2008	DBLP DOI BibTeX RDF	communication flow, information roles, social networks, feature selection, support vector regression, social context, information diffusion, myspace
3	Marc A. Smith, Vladimir Barash, Lise Getoor, Hady Wirawan Lauw	Leveraging social context for searching social media.	SSM	2008	DBLP DOI BibTeX RDF	social media, social search, social context
3	Kristijan Mihalic, Manfred Tscheligi	'Divert: mother-in-law': representing and evaluating social context on mobile devices.	Mobile HCI	2007	DBLP DOI BibTeX RDF	ontologies, evaluation, semantic web, mobile phones, social context, experience sampling
3	Brett Adams, Dinh Q. Phung, Svetha Venkatesh	Extraction of social context and application to personal multimedia exploration.	ACM Multimedia	2006	DBLP DOI BibTeX RDF	social context, multimedia browsing
2	Yue Lu, Panayiotis Tsaparas, Alexandros Ntoulas, Livia Polanyi	Exploiting social context for review quality prediction.	WWW	2010	DBLP DOI BibTeX RDF	review helpfulness, review quality, social network, graph regularization
2	Krishna Chandramouli, Ebroul Izquierdo	Semantic structuring and retrieval of event chapters in social photo collections.	Multimedia Information Retrieval	2010	DBLP DOI BibTeX RDF	exif metadata, metadata fusion, image retrieval, user generated content, social context, particle swarm optimisation
2	Douglas Turnbull, Luke Barrington, Gert R. G. Lanckriet, Mehrdad Yazdani	Combining audio content and social context for semantic music discovery.	SIGIR	2009	DBLP DOI BibTeX RDF	calibrated score averaging, combining data sources, kernel combination svm, music ir, rankboost
2	Yuan-Chu Hwang, Tsung-Lin Li	Conquer Web 2.0 Motivational Challenges from Social Context Evolution.	NCM	2009	DBLP DOI BibTeX RDF	Cooperative social scenairo, e-Society evolution, Web 2.0, Social context
2	Jeni Paay, Jesper Kjeldskov, Steve Howard, Bharat Dave	Out on the town: A socio-physical approach to the design of a context-aware urban guide.	ACM Trans. Comput.-Hum. Interact.	2009	DBLP DOI BibTeX RDF	field evaluation, physical context, prototype design, Pervasive computing, field study, social context, conceptual framework, urban environment
2	Kris Luyten, Ruben Thysv, Kristof Thys, Karin Coninx	Mobile Photography within a Social Context.	Advances in Semantic Media Adaptation and Personalization	2008	DBLP DOI BibTeX RDF
2	Marinka Vangenck, An Jacobs, Bram Lievens, Eva Vanhengel, Jo Pierson	Does Mobile Television Challenge the Dimension of Viewing Television? An Explorative Research on Time, Place and Social Context of the Use of Mobile Television Content.	EuroITV	2008	DBLP DOI BibTeX RDF	Mobile television, television experience, user practices, proxy technology assessment, Maduf, DVB-H, living lab
2	Itai Ashlagi, Piotr Krysta, Moshe Tennenholtz	Social Context Games.	WINE	2008	DBLP DOI BibTeX RDF
2	Donald Steiny	Network Awareness, Social Context and Persuasion.	PERSUASIVE	2008	DBLP DOI BibTeX RDF
2	Jiexun Li, G. Alan Wang, Hsinchun Chen	PRM-based identity matching using social context.	ISI	2008	DBLP DOI BibTeX RDF
2	Jonathan Sillito, Eleanor Wynn	The Social Context of Software Maintenance.	ICSM	2007	DBLP DOI BibTeX RDF
2	Rikard Harr, Victor Kaptelinin	Unpacking the social dimension of external interruptions.	GROUP	2007	DBLP DOI BibTeX RDF	interpersonal relation, interruptee, collaboration, communication, location, interrupter, interruptions, social context
2	Anxo Cereijo Roibás, Antonio Krüger	Designing intelligent user interface for ubiquitous computing environments.	IUI	2007	DBLP DOI BibTeX RDF	context and user modeling, context and user modelling, ethnomethods, intelligent environemnts, ubiquitous computing, intelligent environments, social context, technological assessment
2	Radoslaw Niewiadomski, Catherine Pelachaud	Model of Facial Expressions Management for an Embodied Conversational Agent.	ACII	2007	DBLP DOI BibTeX RDF	facial expressions, Embodied conversational agents, social context
2	Tom Nicolai, Eiko Yoneki, Nils Behrens, Holger Kenn	Exploring Social Context with the Wireless Rope.	OTM Workshops	2006	DBLP DOI BibTeX RDF
2	Fang Sheng, Zhang Min, Huang Ling, Wei Yongshan	The Social Context Model for Research Activities in a Cyberspace.	ICAT Workshops	2006	DBLP DOI BibTeX RDF
2	Bilge Mutlu	An empirical framework for designing social products.	Conference on Designing Interactive Systems	2006	DBLP DOI BibTeX RDF	social context of use, social products, user attributes, interaction design, design methodology, social interaction, personal robots
2	Nishan C. Karunatillake, Nicholas R. Jennings, Iyad Rahwan, Timothy J. Norman	Argument-Based Negotiation in a Social Context.	ArgMAS	2005	DBLP DOI BibTeX RDF	Conflict Resolution, Argumentation-based Negotiation
2	Nishan C. Karunatillake, Nicholas R. Jennings, Iyad Rahwan, Timothy J. Norman	Argument-based negotiation in a social context.	AAMAS	2005	DBLP DOI BibTeX RDF	conflict resolution, argumentation-based negotiation
2	Edward Chao-Chun Kao, Paul Hsueh-Min Chang, Yu-Hung Chien, Von-Wun Soo	Using Ontology to Establish Social Context and Support Social Reasoning.	IVA	2005	DBLP DOI BibTeX RDF
2	Joseph A. Goguen, Luqi	Formal Methods and Social Context in Software Development.	TAPSOFT	1995	DBLP DOI BibTeX RDF
2	Neil McBride	The role of executive information systems in organisations: an interpretive analysis.	HICSS	1995	DBLP DOI BibTeX RDF	interpretive analysis, political factors, interpretive perspective, EIS deployment, UK health authority, radical change, case study, medical information systems, procurement, management information systems, social aspects of automation, social context, structuration theory, government policies, executive information systems, cultural factors
1	Andrea Nedic, Damon Tomlin, Philip Holmes, Deborah A. Prentice, Jonathan D. Cohen	A Decision Task in a Social Context: Human Experiments, Models, and Analyses of Behavioral Data.	Proceedings of the IEEE	2012	DBLP DOI BibTeX RDF
1	Nguyen Hoang Viet, Ellen Munthe-Kaas, Thomas Plagemann	Energy-balanced sensor selection for social context detection.	PerCom Workshops	2012	DBLP DOI BibTeX RDF
1	Thilo Paul-Stueve, Sven Wachsmuth	Towards a social context model and architecture for large-scale pervasive environments.	PerCom Workshops	2012	DBLP DOI BibTeX RDF
1	Sebastian Draxler, Gunnar Stevens, Martin Stein, Alexander Boden, David Randall	Supporting the social context of technology appropriation: on a synthesis of sharing tools and tool knowledge.	CHI	2012	DBLP DOI BibTeX RDF
1	Daniel Fischer	A Mobility Model for the Realistic Simulation of Social Context.	Praxis der Informationsverarbeitung und Kommunikation	2011	DBLP DOI BibTeX RDF
1	Dong-Hee Shin, Chul-Woo Lee	Disruptive innovation for social change: how technology innovation can be best managed in social context.	Telematics and Informatics	2011	DBLP DOI BibTeX RDF
1	Fabio Nauras Akhras	Situating Learning for Digital Inclusion in the Social Context of Communities.	J. Community Informatics	2011	DBLP BibTeX RDF
1	Lynda Tamine, Lamjed Ben Jabeur, Wahiba Bahsoun	On Using Social Context to Model Information Retrieval and Collaboration in Scientific Research Community.	Community-Built Databases	2011	DBLP DOI BibTeX RDF
1	Ahsan Ikram, Nigel Baker, Michael Knappmeyer, Eike Steffen Reetz, Ralf Tönjes	An artificial chemistry based framework for personal and social context aware smart spaces.	IWCMC	2011	DBLP DOI BibTeX RDF
1	Haifeng Zhao, William Kallander, Tometi Gbedema, Henric Johnson, Shyhtsun Felix Wu	Read What You Trust: An Open Wiki Model Enhanced by Social Context.	SocialCom/PASSAT	2011	DBLP DOI BibTeX RDF
1	Markus Endler, Alexandre Skyrme, Daniel Schuster, Thomas Springer	Defining Situated Social Context for pervasive social computing.	PerCom Workshops	2011	DBLP DOI BibTeX RDF
1	Bo Xing, Kristoffer Gronowski, Nimish Radia, Martin Svensson, Andrew Ton	PocketSocial: Your distributed social context now in your pocket.	PerCom Workshops	2011	DBLP DOI BibTeX RDF
1	Najeeb Elahi, Randi Karlsen, Waqas Younas	Image annotation by leveraging the social context.	ICUIMC	2011	DBLP DOI BibTeX RDF
1	Vittorio Bilò, Alessandro Celi, Michele Flammini, Vasco Gallotti	Social Context Congestion Games.	SIROCCO	2011	DBLP DOI BibTeX RDF
1	Sharol Sibongile Mkhomazi, Tiko Iyamu	The social context of broadband infrastructure sharing.	iiWAS	2011	DBLP DOI BibTeX RDF
1	Zi Yang, Keke Cai, Jie Tang, Li Zhang, Zhong Su, Juanzi Li	Social context summarization.	SIGIR	2011	DBLP DOI BibTeX RDF
1	Daniel Fischer	A Mobility Model for the Realistic Simulation of Social Context.	KiVS	2011	DBLP DOI BibTeX RDF
1	Andreas Komninos, Athanasios Plessas, Vasilios Stefanis, John D. Garofalakis	Application of dimensionality reduction techniques for mobile social context.	Ubicomp	2011	DBLP DOI BibTeX RDF
1	Robert Law	Using student blogs for documentation in software development projects.	ITiCSE	2011	DBLP DOI BibTeX RDF
1	Haifeng Zhao, Shaozhi Ye, Prantik Bhattacharyya, Jeff Rowe, Ken Gribble, Shyhtsun Felix Wu	SocialWiki: Bring Order to Wiki Systems with Social Context.	SocInfo	2010	DBLP DOI BibTeX RDF
1	Athanasios Karapantelakis, Gerald Q. Maguire Jr.	Utilizing Social Context for Providing Personalized Services to Mobile Users.	EuroSSC	2010	DBLP DOI BibTeX RDF
1	Tomás Kramár, Michal Barla, Mária Bieliková	Disambiguating Search by Leveraging a Social Context Based on the Stream of User's Activity.	UMAP	2010	DBLP DOI BibTeX RDF
1	Bob De Schutter, Vero Vanden Abeele	Designing meaningful play within the psycho-social context of older adults.	Fun and Games	2010	DBLP DOI BibTeX RDF	meaningful play, game design, elderly, older adults, seniors
1	Gang Wang, Andrew C. Gallagher, Jiebo Luo, David A. Forsyth	Seeing People in Social Context: Recognizing People and Social Relationships.	ECCV	2010	DBLP DOI BibTeX RDF
1	Joseph Mertz, Scott McElfresh	Teaching communication, leadership, and the social context of computing via a consulting course.	SIGCSE	2010	DBLP DOI BibTeX RDF	professional skills, leadership, service-learning, consulting, capstone course, project course
1	Peng Wu, Feng Tang	Improving face clustering using social context.	ACM Multimedia	2010	DBLP DOI BibTeX RDF
1	Junjie Yao, Bin Cui, Yuxin Huang, Xin Jin	Temporal and Social Context Based Burst Detection from Folksonomies.	AAAI	2010	DBLP BibTeX RDF
1	Ben Kirman, Shaun Lawson, Conor Linehan, Francesco Martino, Luciano Gamberini, Andrea Gaggioli	Improving social game engagement on facebook through enhanced socio-contextual information.	CHI	2010	DBLP DOI BibTeX RDF	mediated interaction, social visualisations, social network analysis, social context, social gaming
1	Bastien Sasseville	The Future of Online Distance Education (ODE) in Public Universities in Quebec, Canada.	ICDS	2010	DBLP DOI BibTeX RDF	Economic context, E-Learning, Development, Distance Education, Change, Social context
1	Alan J. Dix, Aaron J. Quigley, Sriram Subramanian, Lucia Terrenghi	Workshop on coupled display visual interfaces.	AVI	2010	DBLP DOI BibTeX RDF	multi-display and CSCW, HCI, ubiquitous computing, gestures, multi-touch, interactive surfaces, mobile user interfaces, tablet
1	Anuj Kumar, Anuj Tewari, Geeta Shroff, Deepti Chittamuru, Matthew Kam, John Canny	An exploratory study of unsupervised mobile learning in rural India.	CHI	2010	DBLP DOI BibTeX RDF	out-of-school learning, mobile learning, informal learning, developing countries, india, cellphone
1	Jürgen Ziegler, Jörg M. Haake, Stephan Lukosch, Volkmar Pipek	Context-adaptive interaction for collaborative work.	CHI Extended Abstracts	2010	DBLP DOI BibTeX RDF	context-based adaptation, cooperation support, collaborative work, context modeling
1	Rahul Breh, Vivek Kumar	Making mathematical problem solving exploratory and social-synergizing computer algebra systems with semantic and web-2.0 technology.	Bangalore Compute Conf.	2010	DBLP DOI BibTeX RDF	web 2.0, semantic web technology, Sage, computer algebra systems
1	Helena M. Mentis, Madhu Reddy, Mary Beth Rosson	Invisible emotion: information and interaction in an emergency room.	CSCW	2010	DBLP DOI BibTeX RDF	er, documentation, healthcare, articulation work, emotion expressions
1	Eyal Dim, Tsvi Kuflik	Social signal processing: detecting small group interaction in leisure activity.	IUI	2010	DBLP DOI BibTeX RDF	interrupt management, social signal processing, ubiquitous computing, group modeling
1	Xuan Bao, Romit Roy Choudhury	MoVi: mobile phone based video highlights via collaborative sensing.	MobiSys	2010	DBLP DOI BibTeX RDF	collaborative sensing, video highlights, context, mobile phones, fingerprinting
1	Edmund Y. W. Seto, Eladio Martin, Allen Y. Yang, Posu Yan, Raffaele Gravina, Irving Lin, Curtis Wang, Michael Roy, Victor Shia, Ruzena Bajcsy	Opportunistic strategies for lightweight signal processing for body sensor networks.	PETRA	2010	DBLP DOI BibTeX RDF	energy expenditure, opportunistic sensing, wearable computing, physical activity, wireless sensors, health monitoring, body area networks
1	Irwin King, Michael R. Lyu, Hao Ma	Introduction to social recommendation.	WWW	2010	DBLP DOI BibTeX RDF	social network model and theories, recommender systems, collaborative filtering, collective intelligence, social recommendation
1	Mauro Cherubini, Rodrigo de Oliveira, Nuria Oliver	Shopping Uncertainties in a Mobile and Social Context	CoRR	2009	DBLP BibTeX RDF
1	Gustavo S. Mesch	Social context and communication channels choice among adolescents.	Computers in Human Behavior	2009	DBLP DOI BibTeX RDF
1	Yasmin Aghajan, Joyca Lacroix, Jingyu Cui, Aart van Halteren, Hamid K. Aghajan	Home Exercise in a Social Context: Real-Time Experience Sharing Using Avatars.	INTETAIN	2009	DBLP DOI BibTeX RDF	Exercise monitor, pose analysis, experience sharing, social networks, avatars, user acceptance
1	Greg P. Milette, Michael K. Schneider, Kathy Ryall, Robert Hyland	Exploiting social context for expertise propagation.	SIGIR	2009	DBLP DOI BibTeX RDF	recommendation, social network analysis, topic models, expertise finding
1	Nithya Sambasivan, Leena Ventä, Jani Mäntyjärvi, Minna Isomursu, Jonna Häkkilä	Designing for social context of mobility: mobile applications for always-on users.	OZCHI	2009	DBLP DOI BibTeX RDF	informational boundaries, social aspects of mobile phones, context-aware, mobile devices, urban computing
1	Yu Andy Wu, Sherry Ryan, John Windsor	Influence of Social Context and Affect on Individuals' Implementation of Information Security Safeguards.	ICIS	2009	DBLP BibTeX RDF
1	Jin Chen, Wenjie Ping, Yunjie Xu, Bernard C. Y. Tan	Am I Afraid of My Peers? Understanding the Antecedents of Information Privacy Concerns in the Online Social Context.	ICIS	2009	DBLP BibTeX RDF
1	Sergi del Moral, Diego E. Pardo, Cecilio Angulo	Social Robot Paradigms: An Overview.	IWANN	2009	DBLP DOI BibTeX RDF	socially interactive robot, communication, interaction, social robot, social context, sociable
1	Jason J. Jung	Adaptive Community Identification on Semantic Social Networks with Contextual Synchronization: An Empirical Study.	KES-AMSTA	2009	DBLP DOI BibTeX RDF	Synchronization, Empirical study, Social context
1	Stephen Cranefield, Guannan Li	Monitoring social expectations in Second Life.	AAMAS	2009	DBLP DOI BibTeX RDF	social expectations, virtual worlds, Second Life
1	George Danezis	Inferring privacy policies for social networking services.	AISec	2009	DBLP DOI BibTeX RDF	cohesive groups, privacy, social networks
1	John Downs, Beryl Plimmer	Evaluating non-interactive domestic situated SMS messaging.	CHI Extended Abstracts	2009	DBLP DOI BibTeX RDF	digital photo frame, domestic messaging, ethnographic evaluation study, ubiquitous computing, communication, mobile phone, situated display
1	A. Taylor Newton, Adam D. I. Kramer, Daniel N. McIntosh	Autism online: a comparison of word usage in bloggers with and without autism spectrum disorders.	CHI	2009	DBLP DOI BibTeX RDF	comparative text analysis, liwc, unobtrusive methodology, word usage, blogs, autism spectrum disorders
1	Timothy Sohn, Leila Takayama, Dean Eckles, Rafael Ballagas	Auditory priming for upcoming events.	CHI Extended Abstracts	2009	DBLP DOI BibTeX RDF	auditory priming, event priming, preparation, mobile, context-aware, auditory user interfaces
1	Rakesh Radhakrishnan	"Identity & context for a changing world".	Digital Identity Management	2009	DBLP DOI BibTeX RDF	context, policy, identity
1	Jennifer Thom-Santelli	Expressing territoriality in collaborative activity.	GROUP	2009	DBLP DOI BibTeX RDF	social tagging, ownership, collaborative authoring, territoriality
1	Ching-man Au Yeung, Nicholas Gibbins, Nigel Shadbolt	Contextualising tags in collaborative tagging systems.	Hypertext	2009	DBLP DOI BibTeX RDF	semantics, context, folksonomy, collaborative tagging
1	Justine Cassell, Kathleen Geraghty, Berto Gonzalez, John Borland	Modeling culturally authentic style shifting with virtual peers.	ICMI	2009	DBLP DOI BibTeX RDF	analysis and modeling of verbal and nonverbal interaction, culture, embodied conversational agents
1	Luke Barrington, Damien O'Malley, Douglas Turnbull, Gert R. G. Lanckriet	User-centered design of a social game to tag music.	KDD Workshop on Human Computation	2009	DBLP DOI BibTeX RDF	web-based games with a purpose, distributed knowledge acquisition, auditory I/O and sound in the UI, computer audition
1	Yu-Ru Lin, Jimeng Sun, Paul Castro, Ravi B. Konuru, Hari Sundaram, Aisling Kelliher	MetaFac: community discovery via relational hypergraph factorization.	KDD	2009	DBLP DOI BibTeX RDF	MetaFac, dynamic social network analysis, metagraph factorization, non-negative tensor factorization, relational hypergraph, community discovery
1	Bruno Lepri, Nadia Mana, Alessandro Cappelletti, Fabio Pianesi	Automatic prediction of individual performance from "thin slices" of social behavior.	ACM Multimedia	2009	DBLP DOI BibTeX RDF	small group interaction, support vector machines, performance prediction, intelligent environments
1	Eleni Kaldoudi, Antonia Chatzopoulou, Vassilis Vargemezis	An interpetive approach in the evaluation of homecare telematics interventions.	PETRA	2009	DBLP DOI BibTeX RDF	home care telematics, interpretivism, peritoneal dialysis, web services, evaluation, telehealth
1	Yu-Ru Lin, Jimeng Sun, Paul Castro, Ravi B. Konuru, Hari Sundaram, Aisling Kelliher	Extracting community structure through relational hypergraphs.	WWW	2009	DBLP DOI BibTeX RDF	community evolution, dynamic social network analysis, non-negative tensor factorization, relational hypergraph
1	Joshua R. Davis, Zachary Goldman, Jacob Hilty, Elizabeth N. Koch, David Liben-Nowell, Alexa Sharp, Tom Wexler, Emma Zhou	Equilibria and Efficiency Loss in Games on Networks.	CSE	2009	DBLP DOI BibTeX RDF
1	Mark Hoogendoorn, S. Waqar Jaffry	The Influence of Personalities Upon the Dynamics of Trust and Reputation.	CSE	2009	DBLP DOI BibTeX RDF
1	Sonia Lajmi, Johann Stan, Hakim Hacid, Elöd Egyed-Zsigmond, Pierre Maret	Extended Social Tags: Identity Tags Meet Social Networks.	CSE	2009	DBLP DOI BibTeX RDF
1	Andry Rakotonirainy, Seng Wai Loke, Patricia Obst	Social Awareness Concepts to Support Social Computing.	CSE	2009	DBLP DOI BibTeX RDF
1	Alisa Devlic, Roland Reichle, Michael Wagner 0001, Manuele Kirsch-Pinheiro, Yves Vanrompay, Yolande Berbers, Massimo Valla	Context Inference of Users' Social Relationships and Distributed Policy Management.	PerCom Workshops	2009	DBLP DOI BibTeX RDF
1	Jorge M. Alonso, Oscar M. Sola	Enabling opportunistic communications in a Social Communications Broker Architecture.	WOWMOM	2009	DBLP DOI BibTeX RDF
1	Jaelson Castro, Manuel Kolp, Lin Liu, Anna Perini	Dealing with Complexity Using Conceptual Models Based on Tropos.	Conceptual Modeling: Foundations and Applications	2009	DBLP DOI BibTeX RDF	complexity, testing, requirements engineering, process modelling, aspect, goal modelling
1	Olga De Troyer, Frederic Kleinermann, Bram Pellens, Ahmed Ewais	Supporting Virtual Reality in an Adaptive Web-Based Learning Environment.	EC-TEL	2009	DBLP DOI BibTeX RDF	Adaptive Learning Environment, Virtual Reality, E-Learning
1	Joey Sik Chun Lam, Wamberto Weber Vasconcelos, Frank Guerin, David Corsar, Alison Chorley, Timothy J. Norman, Javier Vázquez-Salceda, Sofia Panagiotidi, Roberto Confalonieri, I. Gomez, S. Hidalgo, Sergio Álvarez-Napagao, Juan Carlos Nieves, M. Palau Roig, Luigi Ceccaroni, Huib Aldewereld, Virginia Dignum, Frank Dignum, Loris Penserini, Julian A. Padget, Marina De Vos, D. Andreou, Owen Cliffe, Athanasios Staikopoulos, Razvan Popescu, Siobhán Clarke, Paul Sergeant, Chris Reed, Thomas B. Quillinan, Kees Nieuwenhuis	ALIVE: A Framework for Flexible and Adaptive Service Coordination.	ESAW	2009	DBLP DOI BibTeX RDF
1	Juan Romero, Penousal Machado, Antonino Santos	On the Socialization of Evolutionary Art.	EvoWorkshops	2009	DBLP DOI BibTeX RDF
1	Abrar Haider	Evaluation of Information Systems Supporting Asset Lifecycle Management.	ICEIS	2009	DBLP DOI BibTeX RDF	Performance evaluation, Information systems, Asset management