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A Fuzzy Model for Representing Uncertain, Subjective, and Vague Temporal Knowledge in Ontologies
[chapter]
2003
Lecture Notes in Computer Science
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Hence, existing approaches for temporal modeling based on crisp representation of time cannot be applied to these advanced modeling tasks. ...
To overcome these difficulties, in this paper we present fuzzy interval-based temporal model capable of representing imprecise temporal knowledge. ...
We are also examining the different properties of our new fuzzy temporal relations (like transitivity) which work will allow us to make basic inferences even in case of fuzzy intervals (e.g. ...
doi:10.1007/978-3-540-39964-3_57
fatcat:a6252m65vrf4lesdl7rhgml2iu
Publishing Uncertainty on the Semantic Web: Blurring the LOD Bubbles
[chapter]
2019
Lecture Notes in Computer Science
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We present a new vocabulary and a framework to capture and handle uncertainty in the Semantic Web. ...
Current standards of the Semantic Web and Linked Data do not support such a representation in a formal way and independently of any theory. ...
This vocabulary offers to handle fuzzy or inconsistent data and is useful in time-based reasoning. Yet this vocabulary does not provide a formal definition of uncertainty. ...
doi:10.1007/978-3-030-23182-8_4
fatcat:hadqqz243zg5zlftlji6kmglsq
Approaches to Uncertain or Imprecise Rules - A Survey
[chapter]
2009
Lecture Notes in Computer Science
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With this paper we present a brief overview of selected promi nent approaches to rule frameworks and formal rule languages for the representation of and reasoning with uncertain or imprecise knowledge. ...
This work covers selected probabilistic and possibilistic logics, as well as implementations of uncertainty and possibilistic reasoning in rule engine software. ...
Probabilistic Approaches Probability Theory Probability theory is the mathematical theory of random events. ...
doi:10.1007/978-3-642-04985-9_30
fatcat:i2djoph27fgvvfczv2xapaqxki
Using the Dempster-Shafer Theory of Evidence to Resolve ABox Inconsistencies
[chapter]
2008
Lecture Notes in Computer Science
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The Dempster-Shafer theory of evidence is a formalism, which allows appropriate interpretation of extractors' confidence values. ...
Automated ontology population using information extraction algorithms can produce inconsistent knowledge bases. ...
In the Semantic Web domain the studies on uncertain reasoning are mostly focused on two formalisms: probability theory and fuzzy logic. ...
doi:10.1007/978-3-540-89765-1_9
fatcat:5arz3g5yina37lyezqj6zie4iy
Integrating Graded Knowledge And Temporal Change In A Modal Fragment Of Owl
2016
Zenodo
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the uncertainty and interpreted through confidence intervals in the model theory. ...
We complement the model theory by a set of RDFS-/OWL 2 RL-like entailment (if-then) rules, acting on the syntactic representation of modalized statements. ...
Acknowledgements The research described in this paper has been co-funded by the Horizon 2020 Framework Programme of the European Union within the project PAL ...
doi:10.5281/zenodo.269625
fatcat:sreznu6cd5aq5aqeq2qnpkpvs4
Dr 4.2: Multimodal Interaction With Basic Adaptivity And Personalization
2017
Zenodo
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new formalism to prove the feasibility of the approach. ...
The formalism to implement dialogue strategies that was dened in the rst year has been implemented to a great extend, and the functionality contained in the year 1 prototype has been implemented in the ...
Collaboration in Cyber-Physical Environments, grant no. 01IW14001). ...
doi:10.5281/zenodo.344181
fatcat:akohq4it55gqldsxtgy2u6qehe
Description and reasoning for vague ontologies using logic programming
2018
IET Software
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These vagueness descriptions are inputs to vagueness reasoning procedure implemented at meta-level, which is based on extended tableau algorithm. ...
The Semantic Web ontologies can contain vague axioms, which means the knowledge about them is imprecise and then query answering will not possible due to the open world assumption if the necessary information ...
The rough sets theory as generalisation of the fuzzy sets theory [8, 9] is another approach to vagueness. ...
doi:10.1049/iet-sen.2017.0226
fatcat:jvfmcoeborc6bb5iogldnutoza
D4.1: Natural Multimodal Interaction Baseline
2016
Zenodo
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We implemented a prototype for the experiments in year 1, which provide us with interaction data that can be used later to develop and evaluate the components in this work package. ...
We defined a new formalism for the specification of dialogue policies that combines dialogue rules, knowledge representation and dialogue history in a unique way. ...
Acknowledgments The research presented in this paper has been funded by the Aliz-E project (alize.org), grant n° ICT-248116 in FP7/2007-2013, and the PAL project (pal4u.eu), grant n° 643783-RIA in Horizon ...
doi:10.5281/zenodo.1314339
fatcat:22wqr5bwdvgrjgpwydxc5fzhem
Towards the Representation of Claims in Ontologies for the Digital Humanities
2021
International Joint Workshop on Semantic Web and Ontology Design for Cultural Heritage
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Knowledge and data in the human sciences are sometimes expressed in hypothetical or even incompatible terms. One wonders therefore how to make sense of them in ontological modeling frameworks. ...
Our proposal builds on existing works in the state of the art. ...
time points within the interval. ...
dblp:conf/swodch/CristofaroSSS21
fatcat:g5xjzkvfabhulnaxuiaqtpdgvq
Managing home care with loose goals and policies
2014
Journal of Ambient Intelligence and Smart Environments
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However, it is not always possible to rely on exact information for such an approach. Policies should therefore not have to be formulated in terms of precise inputs and outputs. ...
The paper uses automated home care management as a concrete illustration of how the approach works. ...
Uncertain Values Probability theory is widely known and needs no introduction. Fuzzy logic (e.g. ...
doi:10.3233/ais-140277
fatcat:wab2ma5yezb2pidn6hvp7ayawu
Flexible provisioning of web service workflows
2009
ACM Transactions on Internet Technology
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Using simulation, we then benchmark our algorithm and show that it leads to a 700% improvement in average utility, while successfully completing up to eight times as many workflows as approaches that do ...
unreliable and uncertain. ...
Here, a similar pattern as shown in Figure 12 emerges and our flexible approach clearly dominates the other approaches when service success is uncertain (i.e., when the failure probability is greater ...
doi:10.1145/1462159.1462161
fatcat:ixqkzk5yrnhsbdivjj2h7gxs6y
Evaluating Data Reliability: An Evidential Answer with Application to a Web-Enabled Data Warehouse
2013
IEEE Transactions on Knowledge and Data Engineering
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In this paper, we propose a generic method to assess data reliability from a set of criteria using the theory of belief functions. Customizable criteria and insightful decisions are provided. ...
There are many available methods to integrate information source reliability in an uncertainty representation, but there are only a few works focusing on the problem of evaluating this reliability. ...
Indeed it encompasses fuzzy sets and probability distributions as particular representations. 1) Evidence theory: We recall the basics of the theory and its links with fuzzy sets. ...
doi:10.1109/tkde.2011.179
fatcat:aq7rnj2cl5h5vbrzamnmpoqfja
Grounding the Interaction: Knowledge Management for Interactive Robots
2013
Künstliche Intelligenz
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This representation matches situation calculus (or variants like event/fluent calculus) theories and takes explicitly into account the time (either time points or time intervals) and is especially suited ...
is discussed in the context of situation calculus; open world vs. closed world approaches are mentioned. ...
started at any time, 2. the ability to check that if we do some task, it won't bring the world in an inconsistent state, 3 . more generally, the ability to predict the state of the world after some task ...
doi:10.1007/s13218-013-0246-3
fatcat:lzwey4kmoffqlobfwgzcggev5a
North American owls: biology and natural history
1989
ChoiceReviews
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Thus, tawny owls and domestic cats evidently have comparable nocturnal visual sensitivity, both of which probably approach the absolute limit possible in the vertebrate eye. ...
At this time the female would usually approach the male, sometimes landing immediately behind him, and possibly begin begging for food. ...
Surnia: Uncertain, but possibly based on the modern Greek surnion, a vernacular name for Strix aluco. ulula: Latin, "crying out as if in pain." ...
doi:10.5860/choice.26-4491
fatcat:5i5faqty2zdf3fm2e6o3vl4wha
North American owls: biology and natural history
2003
ChoiceReviews
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The file type is application/pdf.
Thus, tawny owls and domestic cats evidently have comparable nocturnal visual sensitivity, both of which probably approach the absolute limit possible in the vertebrate eye. ...
At this time the female would usually approach the male, sometimes landing immediately behind him, and possibly begin begging for food. ...
Surnia: Uncertain, but possibly based on the modern Greek surnion, a vernacular name for Strix aluco. ulula: Latin, "crying out as if in pain." ...
doi:10.5860/choice.40-4017
fatcat:jrs2vh4dxvepheelev3rrimgxq
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