Discovering shared interests using graph analysis
Communications of the ACM - Special issue on internetworking
Referral Web: combining social networks and collaborative filtering
Communications of the ACM
On the Optimality of the Simple Bayesian Classifier under Zero-One Loss
Machine Learning - Special issue on learning with probabilistic representations
The anatomy of a large-scale hypertextual Web search engine
WWW7 Proceedings of the seventh international conference on World Wide Web 7
Statistics and data mining techniques for lifetime value modeling
KDD '99 Proceedings of the fifth ACM SIGKDD international conference on Knowledge discovery and data mining
Estimating campaign benefits and modeling lift
KDD '99 Proceedings of the fifth ACM SIGKDD international conference on Knowledge discovery and data mining
Authoritative sources in a hyperlinked environment
Proceedings of the ninth annual ACM-SIAM symposium on Discrete algorithms
Mining the network value of customers
Proceedings of the seventh ACM SIGKDD international conference on Knowledge discovery and data mining
Extracting Large-Scale Knowledge Bases from the Web
VLDB '99 Proceedings of the 25th International Conference on Very Large Data Bases
A Decision Theoretic Approach to Targeted Advertising
UAI '00 Proceedings of the 16th Conference on Uncertainty in Artificial Intelligence
Cobot in LambdaMOO: A Social Statistics Agent
Proceedings of the Seventeenth National Conference on Artificial Intelligence and Twelfth Conference on Innovative Applications of Artificial Intelligence
Maximizing the spread of influence through a social network
Proceedings of the ninth ACM SIGKDD international conference on Knowledge discovery and data mining
Learning User Similarity and Rating Style for Collaborative Recommendation
Information Retrieval
SNACK: incorporating social network information in automated collaborative filtering
EC '04 Proceedings of the 5th ACM conference on Electronic commerce
Identifying early buyers from purchase data
Proceedings of the tenth ACM SIGKDD international conference on Knowledge discovery and data mining
Mining scale-free networks using geodesic clustering
Proceedings of the tenth ACM SIGKDD international conference on Knowledge discovery and data mining
Technology supporting business solutions
IEEE Intelligent Systems
Social Network Discovery by Mining Spatio-Temporal Events
Computational & Mathematical Organization Theory
Graph mining: Laws, generators, and algorithms
ACM Computing Surveys (CSUR)
The dynamics of viral marketing
EC '06 Proceedings of the 7th ACM conference on Electronic commerce
Probabilistic models for discovering e-communities
Proceedings of the 15th international conference on World Wide Web
Proceedings of the twenty-fifth annual ACM symposium on Principles of distributed computing
Personalized recommendation driven by information flow
SIGIR '06 Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval
Group formation in large social networks: membership, growth, and evolution
Proceedings of the 12th ACM SIGKDD international conference on Knowledge discovery and data mining
Network data mining: methods and techniques for discovering deep linkage between attributes
APCCM '06 Proceedings of the 3rd Asia-Pacific conference on Conceptual modelling - Volume 53
Learning Contextual Dependency Network Models for Link-Based Classification
IEEE Transactions on Knowledge and Data Engineering
Computational aspects of mining maximal frequent patterns
Theoretical Computer Science
Visualization of large networks with min-cut plots, A-plots and R-MAT
International Journal of Human-Computer Studies
The dynamics of viral marketing
ACM Transactions on the Web (TWEB)
Information flow modeling based on diffusion rate for prediction and ranking
Proceedings of the 16th international conference on World Wide Web
On the submodularity of influence in social networks
Proceedings of the thirty-ninth annual ACM symposium on Theory of computing
On threshold behavior in query incentive networks
Proceedings of the 8th ACM conference on Electronic commerce
Challenges in mining social network data: processes, privacy, and paradoxes
Proceedings of the 13th ACM SIGKDD international conference on Knowledge discovery and data mining
Cost-effective outbreak detection in networks
Proceedings of the 13th ACM SIGKDD international conference on Knowledge discovery and data mining
Maximizing influence in a competitive social network: a follower's perspective
Proceedings of the ninth international conference on Electronic commerce
Discovering cohesive subgroups from social networks for targeted advertising
Expert Systems with Applications: An International Journal
Identifying the influential bloggers in a community
WSDM '08 Proceedings of the 2008 International Conference on Web Search and Data Mining
On the approximability of influence in social networks
Proceedings of the nineteenth annual ACM-SIAM symposium on Discrete algorithms
Spectral clustering in telephone call graphs
Proceedings of the 9th WebKDD and 1st SNA-KDD 2007 workshop on Web mining and social network analysis
Social ties and their relevance to churn in mobile telecom networks
EDBT '08 Proceedings of the 11th international conference on Extending database technology: Advances in database technology
Yes, there is a correlation: - from social networks to personal behavior on the web
Proceedings of the 17th international conference on World Wide Web
Do social networks improve e-commerce?: a study on social marketplaces
Proceedings of the first workshop on Online social networks
Analysis of social voting patterns on digg
Proceedings of the first workshop on Online social networks
Effective label acquisition for collective classification
Proceedings of the 14th ACM SIGKDD international conference on Knowledge discovery and data mining
Blogosphere: research issues, tools, and applications
ACM SIGKDD Explorations Newsletter
Visual Discovery of Network Patterns of Interaction between Attributes
Visual Data Mining
Prediction of Information Diffusion Probabilities for Independent Cascade Model
KES '08 Proceedings of the 12th international conference on Knowledge-Based Intelligent Information and Engineering Systems, Part III
Mining social network for extracting topic of textual conversations
CSTST '08 Proceedings of the 5th international conference on Soft computing as transdisciplinary science and technology
Mining social networks using heat diffusion processes for marketing candidates selection
Proceedings of the 17th ACM conference on Information and knowledge management
Discovering leaders from community actions
Proceedings of the 17th ACM conference on Information and knowledge management
Solving the Contamination Minimization Problem on Networks for the Linear Threshold Model
PRICAI '08 Proceedings of the 10th Pacific Rim International Conference on Artificial Intelligence: Trends in Artificial Intelligence
Camera brand congruence in the Flickr social graph
Proceedings of the Second ACM International Conference on Web Search and Data Mining
A Trust-Based Incentive Mechanism for E-Marketplaces
Trust in Agent Societies
Blocking links to minimize contamination spread in a social network
ACM Transactions on Knowledge Discovery from Data (TKDD)
A measurement-driven analysis of information propagation in the flickr social network
Proceedings of the 18th international conference on World wide web
Community gravity: measuring bidirectional effects by trust and rating on online social networks
Proceedings of the 18th international conference on World wide web
Spectral Clustering in Social Networks
Advances in Web Mining and Web Usage Analysis
Efficient influence maximization in social networks
Proceedings of the 15th ACM SIGKDD international conference on Knowledge discovery and data mining
Analyzing patterns of user content generation in online social networks
Proceedings of the 15th ACM SIGKDD international conference on Knowledge discovery and data mining
TrustWalker: a random walk model for combining trust-based and item-based recommendation
Proceedings of the 15th ACM SIGKDD international conference on Knowledge discovery and data mining
Identifying bloggers with marketing influence in the blogosphere
Proceedings of the 11th International Conference on Electronic Commerce
Latency-Bounded Minimum Influential Node Selection in Social Networks
WASA '09 Proceedings of the 4th International Conference on Wireless Algorithms, Systems, and Applications
A Potential-Based Node Selection Strategy for Influence Maximization in a Social Network
ADMA '09 Proceedings of the 5th International Conference on Advanced Data Mining and Applications
Extracting influential nodes for information diffusion on a social network
AAAI'07 Proceedings of the 22nd national conference on Artificial intelligence - Volume 2
Minimizing the spread of contamination by blocking links in a network
AAAI'08 Proceedings of the 23rd national conference on Artificial intelligence - Volume 2
Reflect and correct: A misclassification prediction approach to active inference
ACM Transactions on Knowledge Discovery from Data (TKDD)
Using a trust network to improve top-N recommendation
Proceedings of the third ACM conference on Recommender systems
A history sensitive cascade model in diffusion networks
SpringSim '09 Proceedings of the 2009 Spring Simulation Multiconference
Privacy-enhanced public view for social graphs
Proceedings of the 2nd ACM workshop on Social web search and mining
Efficient estimation of influence functions for SIS model on social networks
IJCAI'09 Proceedings of the 21st international jont conference on Artifical intelligence
Building trust in electronic communities by mining web content
International Journal of Computational Science and Engineering
Discovering Influential Nodes for SIS Models in Social Networks
DS '09 Proceedings of the 12th International Conference on Discovery Science
News Posting by Strategic Users in a Social Network
WINE '09 Proceedings of the 5th International Workshop on Internet and Network Economics
Extracting influential nodes on a social network for information diffusion
Data Mining and Knowledge Discovery
Learning influence probabilities in social networks
Proceedings of the third ACM international conference on Web search and data mining
Determining content power users in a blog network
Proceedings of the 3rd Workshop on Social Network Mining and Analysis
A deterministic model for history sensitive cascade in diffusion networks
SMC'09 Proceedings of the 2009 IEEE international conference on Systems, Man and Cybernetics
RCCtrust: A combined trust model for electronic community
Journal of Computer Science and Technology - Special section on trust and reputation management in future computing systmes and applications
Minimizing the expected complete influence time of a social network
Information Sciences: an International Journal
OASNET: an optimal allocation approach to influence maximization in modular social networks
Proceedings of the 2010 ACM Symposium on Applied Computing
STEvent: Spatio-temporal event model for social network discovery
ACM Transactions on Information Systems (TOIS)
A note on maximizing the spread of influence in social networks
WINE'07 Proceedings of the 3rd international conference on Internet and network economics
Capturing implicit user influence in online social sharing
Proceedings of the 21st ACM conference on Hypertext and hypermedia
Identifying influential reviewers for word-of-mouth marketing
Electronic Commerce Research and Applications
Scalable influence maximization for prevalent viral marketing in large-scale social networks
Proceedings of the 16th ACM SIGKDD international conference on Knowledge discovery and data mining
Social action tracking via noise tolerant time-varying factor graphs
Proceedings of the 16th ACM SIGKDD international conference on Knowledge discovery and data mining
Cellular traffic offloading through opportunistic communications: a case study
Proceedings of the 5th ACM workshop on Challenged networks
Social Recommendation with Interpersonal Influence
Proceedings of the 2010 conference on ECAI 2010: 19th European Conference on Artificial Intelligence
A matrix factorization technique with trust propagation for recommendation in social networks
Proceedings of the fourth ACM conference on Recommender systems
Mining topic-level influence in heterogeneous networks
CIKM '10 Proceedings of the 19th ACM international conference on Information and knowledge management
Predicting product adoption in large-scale social networks
CIKM '10 Proceedings of the 19th ACM international conference on Information and knowledge management
Finding relation between PageRank and voter model
PKAW'10 Proceedings of the 11th international conference on Knowledge management and acquisition for smart systems and services
Finding critical nodes for inhibiting diffusion of complex contagions in social networks
ECML PKDD'10 Proceedings of the 2010 European conference on Machine learning and knowledge discovery in databases: Part II
Virus propagation on time-varying networks: theory and immunization algorithms
ECML PKDD'10 Proceedings of the 2010 European conference on Machine learning and knowledge discovery in databases: Part III
The design of a reliable reputation system
Electronic Commerce Research
A note on maximizing the spread of influence in social networks
Information Processing Letters
Crowdsourcing systems on the World-Wide Web
Communications of the ACM
Correcting for missing data in information cascades
Proceedings of the fourth ACM international conference on Web search and data mining
Strength of social influence in trust networks in product review sites
Proceedings of the fourth ACM international conference on Web search and data mining
An analysis of user influence ranking algorithms on Dark Web forums
ACM SIGKDD Workshop on Intelligence and Security Informatics
Frequent pattern trend analysis in social networks
ADMA'10 Proceedings of the 6th international conference on Advanced data mining and applications: Part I
Submodularity of Influence in Social Networks: From Local to Global
SIAM Journal on Computing
Social Network Analysis and Mining for Business Applications
ACM Transactions on Intelligent Systems and Technology (TIST)
Proceedings of the 20th international conference on World wide web
Limiting the spread of misinformation in social networks
Proceedings of the 20th international conference on World wide web
Where the blogs tip: connectors, mavens, salesmen and translators of the blogosphere
Proceedings of the First Workshop on Social Media Analytics
CIM: categorical influence maximization
Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication
Maximizing influence spread in modular social networks by optimal resource allocation
Expert Systems with Applications: An International Journal
Individual behavior and social influence in online social systems
Proceedings of the 22nd ACM conference on Hypertext and hypermedia
Visual analysis of implicit social networks for suspicious behavior detection
DASFAA'11 Proceedings of the 16th international conference on Database systems for advanced applications: Part II
Are friends overrated?: a study for the social aggregator digg.com
NETWORKING'11 Proceedings of the 10th international IFIP TC 6 conference on Networking - Volume Part II
Camera Brand Congruence and Camera Model Propagation in the Flickr Social Graph
ACM Transactions on the Web (TWEB)
Sparsification of influence networks
Proceedings of the 17th ACM SIGKDD international conference on Knowledge discovery and data mining
A new centrality measure for influence maximization in social networks
PReMI'11 Proceedings of the 4th international conference on Pattern recognition and machine intelligence
FRINGE: a new approach to the detection of overlapping communities in graphs
ICCSA'11 Proceedings of the 2011 international conference on Computational science and its applications - Volume Part III
Active learning of model parameters for influence maximization
ECML PKDD'11 Proceedings of the 2011 European conference on Machine learning and knowledge discovery in databases - Volume Part I
Data-driven modeling and analysis of online social networks
WAIM'11 Proceedings of the 12th international conference on Web-age information management
Wisdom of the better few: cold start recommendation via representative based rating elicitation
Proceedings of the fifth ACM conference on Recommender systems
A generalized stochastic block model for recommendation in social rating networks
Proceedings of the fifth ACM conference on Recommender systems
Social link recommendation by learning hidden topics
Proceedings of the fifth ACM conference on Recommender systems
Competing for customers in a social network: the quasi-linear case
WINE'06 Proceedings of the Second international conference on Internet and Network Economics
Tractable models for information diffusion in social networks
PKDD'06 Proceedings of the 10th European conference on Principle and Practice of Knowledge Discovery in Databases
Patterns of influence in a recommendation network
PAKDD'06 Proceedings of the 10th Pacific-Asia conference on Advances in Knowledge Discovery and Data Mining
Influential nodes in a diffusion model for social networks
ICALP'05 Proceedings of the 32nd international conference on Automata, Languages and Programming
Influence maximization through identifying seed nodes from implicit social networks
Proceedings of the 4th International Conference on Uniquitous Information Management and Communication
mTrust: discerning multi-faceted trust in a connected world
Proceedings of the fifth ACM international conference on Web search and data mining
Exploring social influence via posterior effect of word-of-mouth recommendations
Proceedings of the fifth ACM international conference on Web search and data mining
Proceedings of the fifth ACM international conference on Web search and data mining
Predicting customer churn through interpersonal influence
Knowledge-Based Systems
Approximate solutions for the influence maximization problem in a social network
KES'06 Proceedings of the 10th international conference on Knowledge-Based Intelligent Information and Engineering Systems - Volume Part II
The filter-placement problem and its application to minimizing information multiplicity
Proceedings of the VLDB Endowment
User modeling for telecommunication applications: experiences and practical implications
UMAP'10 Proceedings of the 18th international conference on User Modeling, Adaptation, and Personalization
Digging in the details: a case study in network data mining
ISI'05 Proceedings of the 2005 IEEE international conference on Intelligence and Security Informatics
Are friends overrated? A study for the social news aggregator Digg.com
Computer Communications
Estimate on expectation for influence maximization in social networks
PAKDD'10 Proceedings of the 14th Pacific-Asia conference on Advances in Knowledge Discovery and Data Mining - Volume Part I
Maximizing influence in competitive environments: a game-theoretic approach
GameSec'11 Proceedings of the Second international conference on Decision and Game Theory for Security
Identification of influential social networkers
International Journal of Web Based Communities
Randomized Algorithms for Matrices and Data
Foundations and Trends® in Machine Learning
Winner takes all: competing viruses or ideas on fair-play networks
Proceedings of the 21st international conference on World Wide Web
More than modelling and hiding: towards a comprehensive view of Web mining and privacy
Data Mining and Knowledge Discovery
Community detection via heterogeneous interaction analysis
Data Mining and Knowledge Discovery
How to schedule a cascade in an arbitrary graph
Proceedings of the 13th ACM Conference on Electronic Commerce
Simpler sybil-proof mechanisms for multi-level marketing
Proceedings of the 13th ACM Conference on Electronic Commerce
On the non-progressive spread of influence through social networks
LATIN'12 Proceedings of the 10th Latin American international conference on Theoretical Informatics
Proceedings of the thirteenth ACM international symposium on Mobile Ad Hoc Networking and Computing
SBP'12 Proceedings of the 5th international conference on Social Computing, Behavioral-Cultural Modeling and Prediction
A transitivity aware matrix factorization model for recommendation in social networks
IJCAI'11 Proceedings of the Twenty-Second international joint conference on Artificial Intelligence - Volume Volume Three
Triggering cascades on undirected connected graphs
Information Processing Letters
Discovering influencers for marketing in the blogosphere
Information Sciences: an International Journal
An overview of social network analysis
Wiley Interdisciplinary Reviews: Data Mining and Knowledge Discovery
Ranking User Influence in Healthcare Social Media
ACM Transactions on Intelligent Systems and Technology (TIST)
eTrust: understanding trust evolution in an online world
Proceedings of the 18th ACM SIGKDD international conference on Knowledge discovery and data mining
Interacting viruses in networks: can both survive?
Proceedings of the 18th ACM SIGKDD international conference on Knowledge discovery and data mining
Circle-based recommendation in online social networks
Proceedings of the 18th ACM SIGKDD international conference on Knowledge discovery and data mining
Spread of information in a social network using influential nodes
PAKDD'12 Proceedings of the 16th Pacific-Asia conference on Advances in Knowledge Discovery and Data Mining - Volume Part II
Multi-Layer network for influence propagation over microblog
PAISI'12 Proceedings of the 2012 Pacific Asia conference on Intelligence and Security Informatics
Exploring social influence for recommendation: a generative model approach
SIGIR '12 Proceedings of the 35th international ACM SIGIR conference on Research and development in information retrieval
Identifying valuable customers on social networking sites for profit maximization
Expert Systems with Applications: An International Journal
Electronic Commerce Research and Applications
Temporal semantic centrality for the analysis of communication networks
ICWE'12 Proceedings of the 12th international conference on Web Engineering
Trust-based local and social recommendation
Proceedings of the 4th ACM RecSys workshop on Recommender systems and the social web
On top-k recommendation using social networks
Proceedings of the sixth ACM conference on Recommender systems
Application of the ant colony optimization algorithm to competitive viral marketing
SETN'12 Proceedings of the 7th Hellenic conference on Artificial Intelligence: theories and applications
Maximizing influence spread in a new propagation model
RSKT'12 Proceedings of the 7th international conference on Rough Sets and Knowledge Technology
Controlling opinion bias in online social networks
Proceedings of the 3rd Annual ACM Web Science Conference
The complexity of influence maximization problem in the deterministic linear threshold model
Journal of Combinatorial Optimization
From credit and risk to trust: towards a credit flow based trust model for social networks
Proceedings of the 17th ACM international conference on Supporting group work
Gelling, and melting, large graphs by edge manipulation
Proceedings of the 21st ACM international conference on Information and knowledge management
Combining Trust Modeling And Mechanism Design For Promoting Honesty In E-Marketplaces
Computational Intelligence
Feature-Enhanced probabilistic models for diffusion network inference
ECML PKDD'12 Proceedings of the 2012 European conference on Machine Learning and Knowledge Discovery in Databases - Volume Part II
Influence spread in large-scale social networks --- a belief propagation approach
ECML PKDD'12 Proceedings of the 2012 European conference on Machine Learning and Knowledge Discovery in Databases - Volume Part II
Viral marketing for product cross-sell through social networks
ECML PKDD'12 Proceedings of the 2012 European conference on Machine Learning and Knowledge Discovery in Databases - Volume Part II
On modeling product advertisement in large-scale online social networks
IEEE/ACM Transactions on Networking (TON)
Cascade-based community detection
Proceedings of the sixth ACM international conference on Web search and data mining
Exploiting homophily effect for trust prediction
Proceedings of the sixth ACM international conference on Web search and data mining
How influential are you: detecting influential bloggers in a blogging community
SocInfo'12 Proceedings of the 4th international conference on Social Informatics
The Dynamics of Content Popularity in Social Media
International Journal of Data Warehousing and Mining
Online Social Advertising via Influential Endorsers
International Journal of Electronic Commerce
CINEMA: conformity-aware greedy algorithm for influence maximization in online social networks
Proceedings of the 16th International Conference on Extending Database Technology
Which targets to contact first to maximize influence over social network
SBP'13 Proceedings of the 6th international conference on Social Computing, Behavioral-Cultural Modeling and Prediction
Identifying Influential Taggers in Trust-Aware Recommender Systems
ASONAM '12 Proceedings of the 2012 International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2012)
Learning the Strength of the Factors Influencing User Behavior in Online Social Networks
ASONAM '12 Proceedings of the 2012 International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2012)
Meme ranking to maximize posts virality in microblogging platforms
Journal of Intelligent Information Systems
Predicting information diffusion in social networks using content and user's profiles
ECIR'13 Proceedings of the 35th European conference on Advances in Information Retrieval
Discovering influential nodes from trust network
Proceedings of the 28th Annual ACM Symposium on Applied Computing
Repetition-aware content placement in navigational networks
Proceedings of the 19th ACM SIGKDD international conference on Knowledge discovery and data mining
Discovering latent influence in online social activities via shared cascade poisson processes
Proceedings of the 19th ACM SIGKDD international conference on Knowledge discovery and data mining
Trial and error in influential social networks
Proceedings of the 19th ACM SIGKDD international conference on Knowledge discovery and data mining
Information cascade at group scale
Proceedings of the 19th ACM SIGKDD international conference on Knowledge discovery and data mining
Confluence: conformity influence in large social networks
Proceedings of the 19th ACM SIGKDD international conference on Knowledge discovery and data mining
HeteroMF: recommendation in heterogeneous information networks using context dependent factor models
Proceedings of the 22nd international conference on World Wide Web
Modeling information diffusion and community membership using stochastic optimization
Proceedings of the 2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining
Controlling opinion propagation in online networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Proceedings of the 2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining
Finding contexts of social influence in online social networks
Proceedings of the 7th Workshop on Social Network Mining and Analysis
Fast approximation of matrix coherence and statistical leverage
The Journal of Machine Learning Research
StaticGreedy: solving the scalability-accuracy dilemma in influence maximization
Proceedings of the 22nd ACM international conference on Conference on information & knowledge management
Personalized influence maximization on social networks
Proceedings of the 22nd ACM international conference on Conference on information & knowledge management
Content coverage maximization on word networks for hierarchical topic summarization
Proceedings of the 22nd ACM international conference on Conference on information & knowledge management
Probabilistic solutions of influence propagation on social networks
Proceedings of the 22nd ACM international conference on Conference on information & knowledge management
Exploiting two-faceted web of trust for enhanced-quality recommendations
Expert Systems with Applications: An International Journal
Nearest neighbour based social recommendation using heat diffusion
Proceedings of the 6th ACM India Computing Convention
A probability based algorithm for influence maximization in social networks
Proceedings of the 5th Asia-Pacific Symposium on Internetware
Active learning for networked data based on non-progressive diffusion model
Proceedings of the 7th ACM international conference on Web search and data mining
Preference-based mining of top-K influential nodes in social networks
Future Generation Computer Systems
Proceedings of the 23rd international conference on World wide web
How to influence people with partial incentives
Proceedings of the 23rd international conference on World wide web
Mining social networks using wave propagation
Computational & Mathematical Organization Theory
Simulating the spread of opinions in online social networks when targeting opinion leaders
Information Systems and e-Business Management
Roles in social networks: Methodologies and research issues
Web Intelligence and Agent Systems
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Viral marketing takes advantage of networks of influence among customers to inexpensively achieve large changes in behavior. Our research seeks to put it on a firmer footing by mining these networks from data, building probabilistic models of them, and using these models to choose the best viral marketing plan. Knowledge-sharing sites, where customers review products and advise each other, are a fertile source for this type of data mining. In this paper we extend our previous techniques, achieving a large reduction in computational cost, and apply them to data from a knowledge-sharing site. We optimize the amount of marketing funds spent on each customer, rather than just making a binary decision on whether to market to him. We take into account the fact that knowledge of the network is partial, and that gathering that knowledge can itself have a cost. Our results show the robustness and utility of our approach.