This work describes a multilingual ontology editor where the concepts and semantic relations are constructed inside a three-dimensional *** the prototype is being programmed to compare three types of ontology *** edit...
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This work describes a multilingual ontology editor where the concepts and semantic relations are constructed inside a three-dimensional *** the prototype is being programmed to compare three types of ontology *** editor will serve to construct ontologies viewed as relationship networks,and its concepts can be written in multiple languages, and can be related to normalized concepts(universal words) of the UNL *** concepts also can be associated to 3D objects,or associated among themselves,through relations from UML Class *** kind of relations are used for better representation,communication and understanding of concepts among worldwide users,and also are used to model semantic relations to improve results of searching tools.
In chemistry,the periodic table of elements was a huge leap of *** allowed elements to be placed in a table allowing their *** importantly,it allowed predictions to be made about their properties,and in some cases pre...
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In chemistry,the periodic table of elements was a huge leap of *** allowed elements to be placed in a table allowing their *** importantly,it allowed predictions to be made about their properties,and in some cases predictions about elements which had not even been discovered at the time the periodic table was *** argue that the current state of search methodologies is analogous to the state of chemistry before the arrival of the periodic table,and such a classification system is well overdue. Many machine learning research papers are currently published on the premise that the proposed algorithm does better on a particular data set than another *** approach, while it does produce better results on the given data set,does not produce an understanding of why a particular algorithm performs well on a particular *** No Free Lunch Theorem,while stating this is impossible over all data sets,also provides a possible *** state why the performance table associated with No Free Lunch(which has rows and columns similar to the periodic table),which is exactly what we are looking for,is unworkable,as problems cannot be indexed or enumerated in *** believe the classification of algorithms and problems is the biggest issue facing machine learning today. progress in science is often brought about by asking the right questions,before finding the answers,and it is this question we address in this ***,the contribution of this paper is raising the profile of the challenge of classifying algorithms and *** underlying aim is to reduce the number of papers with titles of the form "Algorithm X Applied to Problem Y",or simply "A New Algorithm",as new algorithms should only be introduced with an intended class of problem instances in mind.
Methods for refined learning of hidden Markov models (HMMs) have been studied for decades, taking either structural or parametric perspectives. This paper discusses using informative components of state parameters to ...
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Methods for refined learning of hidden Markov models (HMMs) have been studied for decades, taking either structural or parametric perspectives. This paper discusses using informative components of state parameters to refine the training of HMMs. While the purpose of HMM learning is to decompose a high-dimensional observation space into latent states, we may still end up with high dimensional state models. A problem with such high dimensional state models is that if they are learned with limited amounts of training data, this will bias the likelihood during training, particularly when there are outliers in the observation sequence. We propose a modified Baum-Welch algorithm to estimate the HMM parameters over informative components selected with nearly sufficient statistics, using relative entropy tolerance. Our method produces a modified likelihood estimation in reduced dimensions, which decreases the computation complexity and preserves near-optimality of the HMM that is constructed. Two variations on the algorithm are discussed, one that deals with general state model and another that considers a special Gaussian case. The approach is evaluated with a problem of using pen tip trajectory for handwriting character verification and recognition. Two data sets are studied, one with low dimensionality and the other with high dimensionality. A comparison is performed of the results of using HMMs trained without and with informative state components. For both data sets, we found that our approach yields improvements in performance. The error rate varies with relative entropy change is also evaluated.
In this paper,we unified two new algorithms,i.e.,to selectively Bordercast the control packets in order to reduce the network load by limiting the number of control packets when ZRP searches for a new *** second algor...
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In this paper,we unified two new algorithms,i.e.,to selectively Bordercast the control packets in order to reduce the network load by limiting the number of control packets when ZRP searches for a new *** second algorithm is proposed to optimize the performance of Query control mechanisms for the Zone Routing Protocol(ZRP) for mobile ad hoc networks for communication on an urban *** proactively maintains routing information for a local neighbourhood(routing zone),while reactively acquiring routes to destinations beyond the routing *** hybrid routing approach can be more efficient than traditional Zone Routing Protocol(ZRP) ***,without proper query control techniques,the ZRP cannot provide the expected reduction in the control *** proposed algorithm enhances the structure of the routing zone to provide enhanced detection and prevention of overlapping *** techniques can be applied to single or multiple channel mobile adhoc networks to improve both the delay and control traffic performance of *** new algorithm allows ZRP to provide routes to all accessible network nodes,with less control traffic than purely proactive link state or purely reactive route discovery,and with less delay than conventional flood searching. The performance evaluation via simulations using a well known simulator QualNet version 5.0 shows that the new approach has better performance than the traditional ZRP.
One of the basic features of life is *** one of the three components of evolution is inheritance,which implies some similarity(both phenotypic and genotypic) between parents and *** is a process and not a substance (*...
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One of the basic features of life is *** one of the three components of evolution is inheritance,which implies some similarity(both phenotypic and genotypic) between parents and *** is a process and not a substance (*** carbon-based does not capture what life is),and this therefore justifies an algorithmic *** life is concerned with the study of synthetic life,and is implemented on a digital *** is a particularly prominent instance, where rudimentary life forms compete for space and *** this system interesting eco-systems emerge,for example demonstrating parasitic behavior. The second law of thermodynamics states that the entropy of an isolated system is *** second law is a consequence of statistics,and that there are many more states with high entropy than low *** has connections with coding theory,data compression and Kolmogorov Complexity, as well as thermodynamics and statistical *** transmitting a coded message,the length of the message is proportional to the *** shortest computer description is a universal code which is good for all probability distributions. The second law could therefore be restated as the Kolmogorov Complexity of a system is *** Complexity is incomputable,however we can use compression tools to give an approximate upper bound. We implement a simple digital world consisting of a bit string of Os and *** implement a system like Tierra,firstly with just thermal noise and no life and observe that the compression size of the world increases according to the second *** we introduce Tierra-like creatures which replicate,and observe that the size of the compressed world *** question we address in this paper is,does the basic replication mechanism underpinning life cause a decrease in *** contribution of this paper is a demonstration,that in an artificial life scenario, entropy,as measured b
This work presents a case of an innovative Brazilian experience of use of free software in public administration as an emergent ecosystem,and the attempt to establish a quality framework for *** the beginning of the c...
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This work presents a case of an innovative Brazilian experience of use of free software in public administration as an emergent ecosystem,and the attempt to establish a quality framework for *** the beginning of the century,Brazilian policy makers were concerned with the limitations of the Free Software Model of Production (FSMP) to provide software to public *** such as installation and operational support,quality of software(users interfaces,manuals) and bugs were not effectively solved by the FSPM *** then shaped the Brazilian Public Software,which is based on code opening (FSPM),but includes some additional duties to the entity that makes the software *** support and to make the concept operational and institutional,an environment was formed and so a virtual ambience named Brazilian Public Software Portal(BPSP) began to *** their beginning in the end of 2006,the BPSP1 has increased its number of associates to 84,000 users,and today it has 40 software solutions available,in many technological areas: geo-processing,health,public town management(sanitation, hospitals management,data management,etc).Even software solutions originated from private entities that had public interest as textual database and web application server *** solutions are used not only by governmental agencies but also by small and medium-sized companies and other kinds of *** related interest groups emerged inside the BPS:4CMBr,driven to municipalities;Virtual Market focused on services;5CQualiBr devoted to the quality of the software in a large sense and to the ecosystem *** and quality assurance are a challenge in this kind of ecosystem.
Geometric problems are usually solved by algebraic methods,which narrows the capacity of *** represent a preliminary framework for geometric basis computing pattern. The pattern is based on He's theory and solves ...
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Geometric problems are usually solved by algebraic methods,which narrows the capacity of *** represent a preliminary framework for geometric basis computing pattern. The pattern is based on He's theory and solves the problems in the synthetic *** define the geometric basis and use an axiomatic prover to generate a sequence of geometric bases. computing is made according to the *** also give an example to demonstration the feasibility of our approach.
Security plays a large role in e-commerce application system,the physical layer structure,anti-SQL injection,RBAC, password policy are important aspects of E-commerce application system security policy which will be a...
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Security plays a large role in e-commerce application system,the physical layer structure,anti-SQL injection,RBAC, password policy are important aspects of E-commerce application system security policy which will be analyzed in this paper.
Recently,most the state of the art heuristics utilize landmarks to estimate the path from current state to the *** this paper,we summarize many types of landmarks,the techniques for finding ordered landmarks,the appro...
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Recently,most the state of the art heuristics utilize landmarks to estimate the path from current state to the *** this paper,we summarize many types of landmarks,the techniques for finding ordered landmarks,the approaches to exploit landmarks,analysis their differences,advantages and disadvantages,and discuss the future research with landmarks, and the trends of planning with landmarks.
<正>Dissipative structure of subject librarian system is described based on the dissipative *** function of subject librarian is analyzed mathematically on subject librarian’s information service and compared with ...
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<正>Dissipative structure of subject librarian system is described based on the dissipative *** function of subject librarian is analyzed mathematically on subject librarian’s information service and compared with traditional reference service,as well as analyzed schematically on knowledge flow and transfer and knowledge *** subject librarian’s role in reduction of positive entropy in library management system is also presented.
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