Outputs (40)

Analysing the predictivity of features to characterise the search space (2022)
Presentation / Conference Contribution

Exploring search spaces is one of the most unpredictable challenges that has attracted the interest of researchers for decades. One way to handle unpredictability is to characterise the search spaces and take actions accordingly. A well-characterised... Read More about Analysing the predictivity of features to characterise the search space.

Transfer learning for operator selection: A reinforcement learning approach (2022)
Journal Article

In the past two decades, metaheuristic optimisation algorithms (MOAs) have been increasingly popular, particularly in logistic, science, and engineering problems. The fundamental characteristics of such algorithms are that they are dependent on a par... Read More about Transfer learning for operator selection: A reinforcement learning approach.

Memory-constrained context-aware reasoning (2022)
Presentation / Conference Contribution

The context-aware computing paradigm introduces environments, known as smart spaces, which can unobtrusively and proactively assist their users. These systems are currently mostly implemented on mobile platforms considering various techniques, includ... Read More about Memory-constrained context-aware reasoning.

A probabilistic logic for resource-bounded multi-agent systems (2019)
Presentation / Conference Contribution

Resource-bounded alternating-time temporal logic (RB-ATL), an extension of Coalition Logic (CL) and Alternating-time Temporal Logic (ATL), allows reasoning about resource requirements of coalitions in concurrent systems. However, many real-world syst... Read More about A probabilistic logic for resource-bounded multi-agent systems.

Probabilistic resource-bounded alternating-time temporal logic (2019)
Presentation / Conference Contribution

This paper extends resource-bounded ATL (RB-ATL)
with probabilistic reasoning and provides the syntax and semantics of the resulting logic, probabilistic resource-bounded ATL (pRB-ATL).

Model checking ontology-driven reasoning agents using strategy and abstraction (2019)
Journal Article

We present a framework for the modelling, specification and verification of ontology-driven multi-agent rule-based systems (MASs). We assume that each agent executes in a separate process and that they communicate via message passing. The proposed ap... Read More about Model checking ontology-driven reasoning agents using strategy and abstraction.

Smart space system interoperability (2019)
Presentation / Conference Contribution

This paper presents our research approach which uses and integrates the terminologies and inference mechanism towards the development of functionally correct systems for smart spaces, considering the recent advances in the area of ontology-based mode... Read More about Smart space system interoperability.

An Efficient Rule-Based Distributed Reasoning Framework for Resource-bounded Systems (2018)
Journal Article

© 2018, The Author(s). Over the last few years, context-aware computing has received a growing amount of attention among the researchers in the IoT and ubiquitous computing community. In principle, context-aware computing transforms a physical enviro... Read More about An Efficient Rule-Based Distributed Reasoning Framework for Resource-bounded Systems.

A resource-aware preference model for context-aware systems (2018)
Presentation / Conference Contribution

© 2018, ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. In mobile computing, context-awareness has recently emerged as an effective approach for building adaptive pervasive computing applications. Many of... Read More about A resource-aware preference model for context-aware systems.

Modeling and Reasoning about Preference-Based Context-Aware Agents over Heterogeneous Knowledge Sources (2017)
Journal Article

© 2017, The Author(s). This paper presents a conceptual framework and multi-agent model for context-aware decision support in dynamic smart environments based on heterogeneous knowledge sources. A Protégé plug-in for rules extraction from distributed... Read More about Modeling and Reasoning about Preference-Based Context-Aware Agents over Heterogeneous Knowledge Sources.

A preference-based application framework for resource-bounded context-aware agents (2017)
Book Chapter

Context-awareness is an essential component of mobile and pervasive computing. It refers to the concept that an application understands its context, reason about its current situation, and provide relevant information and/or services to the users. On... Read More about A preference-based application framework for resource-bounded context-aware agents.

A framework for implementing formally verified resource-bounded smart space systems (2017)
Journal Article

© 2017, Springer Science+Business Media New York. Context-aware computing is a mobile computing paradigm that helps designing and implementing next generation smart applications, where personalized devices interact with users in smart environments. D... Read More about A framework for implementing formally verified resource-bounded smart space systems.

Modelling and reasoning about context-aware agents over heterogeneous knowledge sources (2017)
Presentation / Conference Contribution

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2017. This paper presents a conceptual framework and multi-agent model for context-aware decision support in dynamic smart environments based on heterogeneo... Read More about Modelling and reasoning about context-aware agents over heterogeneous knowledge sources.

The Onto-CropBase – A semantic web application for querying crops linked-data (2016)
Journal Article

© Springer International Publishing Switzerland 2016. The lack of formal technical knowledge has been identified as one of the constraints to research and development on a group of crops collectively referred to as underutilized crops. Some informati... Read More about The Onto-CropBase – A semantic web application for querying crops linked-data.

Resource-bounded context-aware applications: A survey and early experiment (2016)
Presentation / Conference Contribution

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2016. The recent advancement of mobile computing technology and smartphones have changed the way we live, communicate, interact, and understand the world. S... Read More about Resource-bounded context-aware applications: A survey and early experiment.

Modeling and verifying context-aware non-monotonic reasoning agents (2015)
Presentation / Conference Contribution

© 2015 IEEE. This paper complements our previous work on formal modeling of resource-bounded context-aware systems, which handle inconsistent context information using defeasible reasoning, by focusing on automated analysis and verification. A case s... Read More about Modeling and verifying context-aware non-monotonic reasoning agents.

MyGeo-Explorer: A semantic search tool for querying geospatial information (2015)
Journal Article

We propose a semantic search approach for geospatial information systems to resolve the issue of semantic heterogeneity in metadata catalogues. Using the Malaysian geospatial data infrastructure service portal, MyGDI Explorer, as a comparative case s... Read More about MyGeo-Explorer: A semantic search tool for querying geospatial information.

Alternating-time temporal logic with resource bounds (2015)
Journal Article

© 2015 The Author. Many problems in AI and multi-agent systems research are most naturally formulated in terms of the abilities of a coalition of agents. There exist several excellent logical tools for reasoning about coalitional ability. However, co... Read More about Alternating-time temporal logic with resource bounds.

An ontological approach for knowledge modeling and reasoning over heterogeneous crop data sources (2015)
Presentation / Conference Contribution

© Springer International Publishing Switzerland 2015. The past two decades have seen a remarkable shift in the knowledge-and information-sharing paradigm. In the crops domain, for example, the amount of information currently known about underutilized... Read More about An ontological approach for knowledge modeling and reasoning over heterogeneous crop data sources.

A logic for context-aware non-monotonic reasoning agents (2014)
Presentation / Conference Contribution

© Springer International Publishing Switzerland 2014. We develop a logical model for resource-bounded contextaware multi-agent systems which handles inconsistent context information using non-monotonic reasoning. We extend the temporal logic CTL* wit... Read More about A logic for context-aware non-monotonic reasoning agents.

Advancing underutilized crops knowledge using SWRL-enabled ontologies - A survey and early experiment (2014)
Presentation / Conference Contribution

Due to their powerful knowledge representation formalism and associated inference mechanisms, ontology-based approaches have been increasingly adopted to formally represent domain knowledge. We propose the use of ontologies to advance knowledge-shari... Read More about Advancing underutilized crops knowledge using SWRL-enabled ontologies - A survey and early experiment.

A Logical Framework for the Representation and Verification of Context-aware Agents (2014)
Journal Article

© 2014, Springer Science+Business Media New York. We propose a logical framework for modelling and verifying context-aware multi-agent systems. We extend CTL∗ with belief and communication modalities, and the resulting logic 𝓛OCRS allows us t... Read More about A Logical Framework for the Representation and Verification of Context-aware Agents.

A temporal description logic for resource-bounded rule-based context-aware agents (2014)
Presentation / Conference Contribution

© Springer International Publishing Switzerland 2014. We propose a logical framework for modelling and verifying context-aware multi-agent systems. We extend CTL* with belief and communication modalities, and the resulting logic LOCRS allows us to de... Read More about A temporal description logic for resource-bounded rule-based context-aware agents.

Improving the efficiency of Market Information Analysis Systems using GIS, Polygon and Spatial Databases (2013)
Presentation / Conference Contribution

An organization's future developments are influenced by its managements' decisions. This can only happen by strengthening research and development strategies. Market monitoring and analyzing systems are designed to provide an organized flow of inform... Read More about Improving the efficiency of Market Information Analysis Systems using GIS, Polygon and Spatial Databases.

A formal approach to modelling and verifying resource-bounded context-aware agents (2013)
Presentation / Conference Contribution

There has been a move of context-aware systems into safety-critical domains including healthcare, emergency scenarios, and disaster recovery. These systems are often distributed and deployed on resource-bounded devices. Therefore, developing formal t... Read More about A formal approach to modelling and verifying resource-bounded context-aware agents.

Formal approaches to modelling and verifying resource-bounded agents-state of the art and future prospects (2012)
Journal Article

This paper reviews formal approaches to modelling and verifying resource-bounded agents focusing on state of the Art and future prospects.

Verifying resource requirements for ontology-driven rule-based agents (2012)
Presentation / Conference Contribution

Recent efforts towards the Semantic Web have resulted in powerful languages such as Semantic Web Rule Language (SWRL) based on OWL-DL and RuleML. Rule languages and inference engines incorporate reasoning capabilities to Semantic Web application syst... Read More about Verifying resource requirements for ontology-driven rule-based agents.

Logic for coalitions with bounded resources (2011)
Journal Article

Recent work on Alternating-Time Temporal Logic and Coalition Logic has allowed the expression of many interesting properties of coalitions and strategies. However, there is no natural way of expressing resource requirements in these logics. In this a... Read More about Logic for coalitions with bounded resources.

Verifying requirements for resource-bounded agents (2011)
Thesis

This thesis presents frameworks for the modelling and verification of resource-bounded reasoning agents. The resources considered include the time, memory, and communication bandwidth required by agents to achieve a goal. The scalability and expressi... Read More about Verifying requirements for resource-bounded agents.

Automated verification of resource requirements in multi-agent systems using abstraction (2011)
Presentation / Conference Contribution

We describe a framework for the automated verification of multi-agent systems which do distributed problem solving, e.g. query answering. Each reasoner uses facts, messages and Horn clause rules to derive new information. We show how to verify correc... Read More about Automated verification of resource requirements in multi-agent systems using abstraction.

Resource-bounded alternating-time temporal logic (2010)
Presentation / Conference Contribution

Many problems in AI and multi-agent systems research are most naturally formulated in terms of the abilities of a coalition of agents. There exist several excellent logical tools for reasoning about coalitional ability. However, coalitional ability c... Read More about Resource-bounded alternating-time temporal logic.

Reasoning about other agents' beliefs under bounded resources (2009)
Presentation / Conference Contribution

There exists a considerable body of work on epistemic logics for bounded reasoners where the bound can be time, memory, or the amount of information the reasoners can exchange. In much of this work the epistemic logic is used as a meta-logic to reaso... Read More about Reasoning about other agents' beliefs under bounded resources.

Expressing properties of coalitional ability under resource bounds (2009)
Presentation / Conference Contribution

We introduce Coalition Logic for Resource Games (CLRG) which extends Coalition Logic by allowing explicit reasoning about resource endowments of coalitions of agents and resource bounds on strategies. We show how to express interesting properties of... Read More about Expressing properties of coalitional ability under resource bounds.

A logic for coalitions with bounded resources (2009)
Presentation / Conference Contribution

Recent work on Alternating-Time Temporal Logic and Coalition Logic has allowed the expression of many interesting properties of coalitions and strategies. However there is no natural way of expressing resource requirements in these logics. This paper... Read More about A logic for coalitions with bounded resources.

Verifying time, memory and communication bounds in systems of reasoning agents (2009)
Presentation / Conference Contribution

We present a framework for verifying systems composed of heterogeneous reasoning agents, in which each agent may have differing knowledge and inferential capabilities, and where the resources each agent is prepared to commit to a goal (time, memory a... Read More about Verifying time, memory and communication bounds in systems of reasoning agents.

Verifying time and communication costs of rule-based reasoners (2009)
Presentation / Conference Contribution

We present a framework for the automated verification of time and communication requirements in systems of distributed rule-based reasoning agents which allows us to determine how many rule-firing cycles are required to solve the problem, how many me... Read More about Verifying time and communication costs of rule-based reasoners.

Verifying resource requirements for distributed rule-based systems (2008)
Presentation / Conference Contribution

Rule-based systems are rapidly becoming an important component of ‘mainstream’ computing technologies, for example in business process modelling, the semantic web, sensor networks etc. However, while rules provide a flexible way of implementing such... Read More about Verifying resource requirements for distributed rule-based systems.

Verifying time, memory and communication bounds in systems of reasoning agents (2008)
Presentation / Conference Contribution

We present a framework for verifying systems composed of heterogeneous reasoning agents, in which each agent may have differing knowledge and inferential capabilities, and where the resources each agent is prepared to commit to a goal (time, memory a... Read More about Verifying time, memory and communication bounds in systems of reasoning agents.

Verification of resource requirements of distributed reasoning agents (2008)
Presentation / Conference Contribution

We present a framework for verifying systems composed of heterogeneous reasoning agents, in which each agent may have differing knowledge and inferential capabilities, and where the resources each agent is prepared to commit to a goal (time, memory a... Read More about Verification of resource requirements of distributed reasoning agents.

Component-wise instruction-cache behavior prediction (2004)
Presentation / Conference Contribution

The precise determination of worst-case execution times (WCETs) for programs is mostly being performed on fully linked executables, since all needed information is available and all machine parameters influencing cache performance are available to th... Read More about Component-wise instruction-cache behavior prediction.