Recent research suggests the usefulness of conducting information merging on the level of epistemic states as an alternative to the usual approach of knowledge base merging [1,2]. We take an epistemic state to be an a...
ISBN:
(纸本)3540440380
Recent research suggests the usefulness of conducting information merging on the level of epistemic states as an alternative to the usual approach of knowledge base merging [1,2]. We take an epistemic state to be an assignment of natural numbers to the classical valuations of the finite propositional logic under consideration. In this paper we investigate various syntactic representations of epistemic states and show how these can be employed to represent merging operations syntactically. These include ranked knowledge bases and their normals forms, as well as different versions of structures referred to as partitions. We show that there are efficient methods for transformaing any ranked knowledge base into an equivalent partition, and vice versa. We provide a uniform method for obtaining syntactic representations, in terms of partitions, of a large class of semantic merging operations. This method is linear in n times the product of the sizes of the n partitions used to represent the epistemic states to be merged. For the class of lexicographic merging operations, it can be proved that this method represents the best we can do in terms of computational complexity. We also show that the structure of some semantic merging operations can be exploited to obtain syntactic representations for them which can be determined much more efficiently than the uniform method provided. To be able to use these efficient methods, it is necessary to use ranked knowledge bases as the syntactic representational form.
We describe our work on the development of Language and Evaluation Resources for the evaluation of summaries in English and Chinese. The language resources include a parallel corpus of English and Chinese texts which ...
We describe our work on the development of Language and Evaluation Resources for the evaluation of summaries in English and Chinese. The language resources include a parallel corpus of English and Chinese texts which are translations of each other, a set of queries in both languages, clusters of documents relevants to each query, sentence relevance measures for each sentence in the document clusters, and manual multi-document summaries at different compression rates. The evaluation resources consist of metrics for measuring the content of automatic summaries against reference summaries. The framework can be used in the evaluation of extractive, non-extractive, single and multi-document summarization. We focus on the resources developed that are made available for the research community.
Intelligent agents have to be able to merge inputs received from different sources in a coherent and rational way. Recently, several proposals have been made for the merging of structures in which it is possible to en...
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This paper presents a novel, robust and flexible method for extracting four mouth features (top of the upper lip, bottom of the lower lip, left and right mouth corners) from facial image sequences. While robustness is...
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This paper presents a novel, robust and flexible method for extracting four mouth features (top of the upper lip, bottom of the lower lip, left and right mouth corners) from facial image sequences. While robustness is referred to subject variability, pose, and image quality, flexibility is begotten by efficient fusion of several information sources and expounding the certainty of the generated results.
Individual service systems will be combined and collaborated over the network into one-stop service systems within a very short time. According to this vision, Japanese and European parties are developing service inte...
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ISBN:
(纸本)0769512240
Individual service systems will be combined and collaborated over the network into one-stop service systems within a very short time. According to this vision, Japanese and European parties are developing service integration platform prototypes collaboratively based on autonomous decentralized service system (ADSS) technologies. The platform can be applied to various types of service systems. We introduce an example system for e-government applications developed on the platform.
Over the past decade, several inductive logic programming (ILP) systems have been developed. However, the normal ILP system does not have enough power to induce logic programs in some domains. Therefore, various new I...
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Case acquisition and labelling are important bottlenecks for predictive data mining. In the web context, a cascade of supporting tech- niques can be used, from general ones such as user interfaces, through filtering b...
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We present ViMPIOS, a novel MPI-IO implementation based on ViPIOS, the Vienna Parallel Input Output System. ViMPIOS inherits the defining characteristics of ViPIOS, which makes it a client-server based system focusing...
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The advent of the so-called cDNA microarrays has offered the first possibility to obtain a global understanding of biological processes in living organisms by simultaneous readouts of tens of thousands of genes. Initi...
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