A5028309559- Multi-Agent Systems and Negotiation
- Semantic Web and Ontologies
- Logic, Reasoning, and Knowledge
- Service-Oriented Architecture and Web Services
- Privacy, Security, and Data Protection
- Privacy-Preserving Technologies in Data
- Business Process Modeling and Analysis
- Access Control and Trust
- Peer-to-Peer Network Technologies
- Auction Theory and Applications
- Mobile Agent-Based Network Management
- Spam and Phishing Detection
- Mobile Crowdsensing and Crowdsourcing
- Constraint Satisfaction and Optimization
- Advanced Software Engineering Methodologies
- Distributed systems and fault tolerance
- Recommender Systems and Techniques
- Caching and Content Delivery
- Opinion Dynamics and Social Influence
- Complex Network Analysis Techniques
- Biomedical Text Mining and Ontologies
- Software System Performance and Reliability
- Transportation and Mobility Innovations
- Speech and dialogue systems
- Data Quality and Management
Utrecht University
2018-2024
Boğaziçi University
2009-2018
Institute of Electrical and Electronics Engineers
2017
Regional Municipality of Niagara
2017
IEEE Computer Society
2017
North Carolina State University
2001-2007
Vrije Universiteit Amsterdam
2004-2005
Protocols represent the allowed interactions among communicating agents. are essential in applications such as electronic commerce where it is necessary to constrain behaviors of autonomous Traditional approaches, which model protocols terms action sequences, limit flexibility agents executing protocols. By contrast, we develop an approach for specifying capture content actions through agents' commitments one another. We formalize a variant event calculus. provide operations and reasoning...
Developing, maintaining, and disseminating trust in open, dynamic environments is crucial. We propose self-organizing referral networks as a means for establishing such environments. A network consists of autonomous agents that model others terms their trustworthiness disseminate information on others' trustworthiness. An agent may request service from another; requested provide the or give to someone else. Possibly with its user's help, each can judge quality obtained. Importantly,...
Preserving users’ privacy is important for Web systems. In systems where transactions are managed by a single user, such as e-commerce systems, preserving of the merely capability access control. However, in online social networks, each transaction and has effect on others, difficult. many cases, constraints distributed, expressed high-level manner, would depend information that only becomes available over interactions with others. Hence, when content being shared others who might be...
Social network users expect the social networks that they use to preserve their privacy. Traditionally, privacy breaches have been understood as malfunctioning of a given system. However, in online networks, are not necessarily system but byproduct its workings. The allowed create and share content about themselves others. When multiple entities start distributing without control, information can reach unintended individuals inference reveal more user. Accordingly, this paper first...
Theory of mind refers to the human ability reason about mental content other people, such as their beliefs, desires, and goals. People use theory understand, about, explain behaviour others. Having a is especially useful when people collaborate, since individuals can then on what individual knows well reasoning they might do. Similarly, hybrid intelligence systems, where AI agents collaborate with humans, necessitate that humans using computational mind. However, try keep track all attitudes...
Online shared content, such as group pictures, often contains information about multiple users. Developing technical solutions to manage the privacy of "co-owned" content is challenging because each co-owner may have different preferences. Recent approaches advocate group-decision mechanisms, including auctions, decide how best resolve these differences. However, it not clear if users would participate in mechanisms and they do, whether act altruistically. Understanding dynamics crucial...
The increasing number of service providers on the Web makes it challenging to select a provider for specific demand. Each consumer has different expectations given in contexts, so selection process should be consumer‐oriented and context‐dependent. Current approaches typically have consumers receive ratings from other consumers, where reflect consumers' overall subjective opinions. This may misleading if contexts satisfaction criteria. In this paper, we propose that objectively record their...
Increasingly, software engineering involves open systems consisting of autonomous and heterogeneous participants or agents who carry out loosely coupled interactions. Accordingly, understanding specifying communications among is a key concern. A focus on ways to formalize meaning distinguishes agent communication from traditional distributed computing: provides basis for flexible interactions compliance checking. Over the years, number approaches have emerged with some essential irrelevant...
Online social networks provide an environment for their users to share content with others, where the user who shares a item is put in charge, generally ignoring others that might be affected by it. However, shared one can very well violate privacy of other users. To remedy this, ideally, all are related should get say how shared. Recent approaches advocate use agreement technologies enable stakeholders post discuss configurations post. This allows individuals express concerns so various...
Agents must decide with whom to interact, which is nontrivial when no central directories are available. A classical decentralized approach referral systems, where agents adaptively give referrals one another. We study the emergent properties of especially those dealing their quality, efficiency, and structure. Our key findings (1) pathological graph structures can emerge due some neighbor selection policies (2) if these avoided, quality efficiency depend on policies. Further, authorities...
Selecting the right parties to interact with is a fundamental problem in open and dynamic environments. The amplified when number of interacting high, parties' reasons for selecting others vary. We examine service selection an e-commerce setting where consumer agents cooperate identify providers that would satisfy their needs most. Previous approaches are usually based on capturing exchanging ratings consumers providers. Rating-based have two major weaknesses. 1) given particular context....