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Integrated Planning and Execution on Read-Write Linked Data

Nico Aßfalg, Helen Schneider, Tobias Käfer
2021 International Semantic Web Conference  
Video: https://nico-assfalg.de/semantic-web/HTN-WiLD_Demo.mp4 Code: https://github.com/nico1509/htn-wild All the Agents Challenge (ATAC 2021)  ...  We present (1) a virtual flamethrower factory as an abstraction of a real-world industrial setting that provides Read-Write Linked Data interfaces to devices, and (2) an agent that operates in this environment  ...  Lastly, our agent makes use of an ontology to express planning problems according to the Hierarchical Task Network (HTN) method [3] , for which we formulated operational semantics in ASM4LD.  ... 
dblp:conf/semweb/AssfalgSK21 fatcat:vzo75bdjsfggxgnyhlhnu2z72y

An Ontological Context-Aware Approach for a Dynamic Business Process Formulation [chapter]

Hanh Huu Hoang
2013 Lecture Notes in Computer Science  
the HTN planning algorithm traverses through the HTN recursively decomposing tasks according to the matching methods, a result (or plan) is generated for "traveling from University of Maryland (UMD) to  ...  Each method has a prescription for how to decompose some task into a set of subtasks, with different restrictions that must be satisfied so that a method would be applicable and also with respect to various  ... 
doi:10.1007/978-3-642-36543-0_52 fatcat:bgxtl3h3hfasdnffmctetrfkoy

Semantic Attachments for HTN Planning

Maurício Cecílio Magnaguagno, Felipe Meneguzzi
2020 PROCEEDINGS OF THE THIRTIETH AAAI CONFERENCE ON ARTIFICIAL INTELLIGENCE AND THE TWENTY-EIGHTH INNOVATIVE APPLICATIONS OF ARTIFICIAL INTELLIGENCE CONFERENCE  
We formalize Semantic Attachments for HTN planning using semi coroutines, allowing such procedurally defined predicates to link the planning process to custom unifications outside of the planner, such  ...  Hierarchical Task Networks (HTN) planning uses a decomposition process guided by domain knowledge to guide search towards a planning task.  ...  Conclusion We developed a notion of semantic attachments for HTN planners that not only allows a domain expert to easily define external numerical functions for real-world domains, but also provides substantial  ... 
doi:10.1609/aaai.v34i06.6548 fatcat:2yu67gnkzraktecbaaurmwf6ym

A Case Study of Question Answering in Automatic Tourism Service Packaging

Liu Wang, Lejian Liao, Kai Yang, Hai Tan
2013 Cybernetics and Information Technologies  
To plan the services, SHOP2 planner is introduced in our architecture, which adopts a semantic Web for content modeling, logic grammar for question parsing, and Hierarchical Task Network (HTN) for user  ...  A case study in e-Tourism domain is investigated, which implements dynamic packaging for tourism products.  ...  For this sequence of actions, we will get a HTN problem domain and a planning domain for Web service dynamic composition.  ... 
doi:10.2478/cait-2013-0045 fatcat:na7vume2off7xdhy4yz2uryz44

Learning task hierarchies using statistical semantics and goal reasoning

Sriram Gopalakrishnan, Héctor Muñoz-Avila, Ugur Kuter, Mark Roberts, Daniel Borrajo, Michael Cox, Neil Yorke-Smith
2018 AI Communications  
WORD2HTN combines semantic text analysis techniques and subgoal learning in order to generate Hierarchical Task Networks (HTNs).  ...  Unlike existing HTN learning algorithms, WORD2HTN learns distributed vector representations that represent the similarities and semantics of the components of plan traces.  ...  Approved for public release, distribution unlimited. The views expressed are those of the authors and do not reflect the official policy of the U.S. Government.  ... 
doi:10.3233/aic-180756 fatcat:gfbu5eh3ojahdhi5lrcbbofzdu

On Planning with Preferences in HTN [article]

Shirin Sohrabi, Sheila A. McIlraith
2009 arXiv   pre-print
The outcome of our work is a language for specifyin user preferences, tailored to HTN planning, together with a provably optimal preference-based planner, HTNPLAN, that is implemented as an extension of  ...  We prove our approach sound and optimal with respect to the plans it generates by appealing to a situation calculus semantics of our preference language and of HTN planning.  ...  Method m is relevant for a task t if there is a substitution σ such that σ(t) =task(m).  ... 
arXiv:0909.0682v1 fatcat:nkmy5zlu2bespfsronur3h5inq

A Planner for Implementing Semantic Service Agents based on Semantic Web Services Initiative Architecture

Önder Gürcan, Geylani Kardas, Özgür Gümüs, Erdem Eser Ekinci, Oguz Dikenelli
2006 European Workshop on Multi-Agent Systems  
The developed planner has the capability of executing plans consisting of special tasks for semantic service agents in a way that described in SWSA.  ...  The Semantic Web Services Initiative Architecture (SWSA) describes the overall process of discovering and interacting with Semantic Web services in three phases and denes a conceptual model to accomplish  ...  Consider the HTN plan for reserving a hotel room shown in Fig. 7 .  ... 
dblp:conf/eumas/GurcanKGED06 fatcat:apqc7ixc5nhazgkry5hngnnxw4

A Framework for Intelligent Web Services: Combined HTN and CSP Approach

Incheon Paik, Daisuke Maruyama, Michael Huhns
2006 2006 IEEE International Conference on Web Services (ICWS'06)  
In this paper, we describe a new framework for intelligent semantic Web services that supports the planning and scheduling aspects by a combined HTN planner and CSP.  ...  The framework covers all of the procedures needed to deal with a user's request, including domain analysis of the request, task flow decisions and CSP creation by the planner, and solving the CSP by a  ...  method for the problem, planning from a KB or from available Semantic Web rules.  ... 
doi:10.1109/icws.2006.6 dblp:conf/icws/PaikMH06 fatcat:3m3oyk3s3rbzloy4rmyrmtils4

"Semantics Inside!" But Let's Not Tell the Data Miners: Intelligent Support for Data Mining [chapter]

Jörg-Uwe Kietz, Floarea Serban, Simon Fischer, Abraham Bernstein
2014 Lecture Notes in Computer Science  
workflows and quick-fixes, reinforcing the finding that even a little semantic modeling can go a long way in improving the understanding of a domain even for domain experts.  ...  that allows to describe operators and build a task/method decomposition grammar to specify the desired workflows embedded in an ontology.  ...  The DMWF-HTN ontology (see Figure 1b ) is used to define the tasks and methods for planning. HTN planning is like a top-down grammar that specifies the skeleton or template of workflows.  ... 
doi:10.1007/978-3-319-07443-6_47 fatcat:v4c3admeirguxgx2o7rhrnyofe

Stigmergic Modeling of Hierarchical Task Networks [chapter]

H. Van Dyke Parunak, Theodore Belding, Robert Bisson, Sven Brueckner, Elizabeth Downs, Rainer Hilscher, Keith S. Decker
2010 Lecture Notes in Computer Science  
We show how stigmergic agents can plan over a hierarchical task network, a resource-oriented dialect of the TAEMS language. Our results reveal an important distinction among HTN's.  ...  Graphs are a convenient formalism for stigmergic environments. Can we can use an HTN directly as a stigmergic environment.  ...  Commonly, a single agent is responsible for each event in an HTN. A task may have subtasks executed by different agents, but the atomic events (the methods) are the responsibility of single agents.  ... 
doi:10.1007/978-3-642-13553-8_9 fatcat:zay4ravou5girmrol4qcwf4pci

HAUTO: Automated composition of convergent services based in HTN planning

Armando Ordoñez, Juan Carlos Corrales, Paolo Falcarin
2014 Ingeniería e Investigación  
instance, the automated composition module based on HTN planning and the execution environment for convergent (Web and telecom) services.  ...  HAUTO is based in HTN (hierarchical task networks) Automated Planning and is composed of three modules: a request processing module that transforms natural language and context information into a planning  ...  Acknowledgements The authors thank the University of East London and University of Cauca for supporting this project.  ... 
doi:10.15446/ing.investig.v34n1.42782 fatcat:2ksmhk4wkzbxfiuijhz3wu4h3e

Optimizing Web Service Composition While Enforcing Regulations [chapter]

Shirin Sohrabi, Sheila A. McIlraith
2009 Lecture Notes in Computer Science  
In this paper we present an approach to Web service composition that builds on work using AI planning, and more specifically Hierarchical Task Networks (HTNs), for Web service composition.  ...  A significant advantage of our approach is that it provides much of the how-to knowledge of a choreography while enabling customization and optimization of integrated Web service selection and composition  ...  We thank our colleague Jorge Baier for helpful discussion.  ... 
doi:10.1007/978-3-642-04930-9_38 fatcat:ga6eapdfgvbfrd5rfi57mlkwni

Towards Automated Service Matchmaking and Planning for Multi-Agent Systems with OWL-S – Approach and Challenges [chapter]

Johannes Fähndrich, Nils Masuch, Hilmi Yildirim, Sahin Albayrak
2014 Lecture Notes in Computer Science  
In this paper we discuss the shortcomings of the semantic service selection component SeMa 2 , propose improvements and describe an integration concept into a multiagent framework.  ...  Further, we illustrate how this system can be extended by an automated service composition component using methods from the AI planning community.  ...  For service composition it uses a combination of a Fast-Forward-planner and an HTN planner.  ... 
doi:10.1007/978-3-319-06859-6_21 fatcat:3pzpj4efpfherirusq7m2kga2e

Addendum to "HTN Acting: A Formalism and an Algorithm" [article]

Lavindra de Silva
2021 arXiv   pre-print
Hierarchical Task Network (HTN) planning is a practical and efficient approach to planning when the 'standard operating procedures' for a domain are available.  ...  There has been renewed interest in making HTN planners behave more like BDI agent systems, e.g. to have a unified representation for acting and planning.  ...  This paper presents a formal semantics that builds on the core HTN semantics in order to enable such response and recovery.  ... 
arXiv:1806.02127v2 fatcat:a2nfskf35vetbgnp3n73bt6cne

HDDL: An Extension to PDDL for Expressing Hierarchical Planning Problems

Daniel Höller, Gregor Behnke, Pascal Bercher, Susanne Biundo, Humbert Fiorino, Damien Pellier, Ron Alford
2020 PROCEEDINGS OF THE THIRTIETH AAAI CONFERENCE ON ARTIFICIAL INTELLIGENCE AND THE TWENTY-EIGHTH INNOVATIVE APPLICATIONS OF ARTIFICIAL INTELLIGENCE CONFERENCE  
systems, because the modeling process is less tedious (due to the lack of advice) and there is no (or less) commitment to a certain planning system the model is created for.  ...  However, these advantages are destroyed by the lack of a common input language and feature set supported by the different systems.  ...  Acknowledgements This work was partly funded by the technology transfer project "Do it yourself, but not alone: Companion-Technology for DIY support" of the SFB/TRR 62 funded by the German Research Foundation  ... 
doi:10.1609/aaai.v34i06.6542 fatcat:qlsvozotdva2vhde6fer3a4yn4
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