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Abstract: Dendrograms used in data analysis are ultrametric spaces, hence objects of nonarchimedean geometry. It is known that there exist $p$-adic representation of dendrograms. Completed by a point at infinity, they can be viewed as subtrees of the Bruhat-Tits tree associated to the $p$-adic projective line. The impl... |
Title: A Six Degree-Of-Freedom Haptic Device Based On The Orthoglide And A Hybrid Agile Eye |
Abstract: This paper is devoted to the kinematic design of a new six degree-of-freedom haptic device using two parallel mechanisms. The first one, called orthoglide, provides the translation motions and the second one, called agile eye, produces the rotational motions. These two motions are decoupled to simplify the di... |
Title: Analyse Comparative des Manipulateurs 3R \`a Axes Orthogonaux |
Abstract: A family of 3R orthogonal manipulators without offset on the third body can be divided into exactly nine workspace topologies. The workspace is characterized in a half-cross section by the singular curves. The workspace topology is defined by the number of cusps and nodes that appear on these singular curves.... |
Title: An Exhaustive Study of the Workspace Topologies of all 3R Orthogonal Manipulators with Geometric Simplifications |
Abstract: This paper analyses the workspace of the three-revolute orthogonal manipulators that have at least one of their DH parameters equal to zero. These manipulators are classified into different groups with similar kinematic properties. The classification criteria are based on the topology of the workspace. Each g... |
Title: Practical Approach to Knowledge-based Question Answering with Natural Language Understanding and Advanced Reasoning |
Abstract: This research hypothesized that a practical approach in the form of a solution framework known as Natural Language Understanding and Reasoning for Intelligence (NaLURI), which combines full-discourse natural language understanding, powerful representation formalism capable of exploiting ontological informatio... |
Title: Integration of a Balanced Virtual Manikin in a Virtual Reality Platform aimed at Virtual Prototyping |
Abstract: The work presented here is aimed at introducing a virtual human controller in a virtual prototyping framework. After a brief introduction describing the problem solved in the paper, we describe the interest as for digital humans in the context of concurrent engineering. This leads us to draw a control archite... |
Title: Balanced Virtual Humans Interacting with their Environment |
Abstract: The animation of human avatars seems very successful; the computer graphics industry shows outstanding results in films everyday, the game industry achieves exploits... Nevertheless, the animation and control processes of such manikins are very painful. It takes days to a specialist to build such animated seq... |
Title: Virtual reality: A human centered tool for improving Manufacturing |
Abstract: Manufacturing is using Virtual Reality tools to enhance the product life cycle. Their definitions are still in flux and it is necessary to define their connections. Thus, firstly, we will introduce more closely some definitions where we will find that, if the Virtual manufacturing concepts originate from mach... |
Title: A New Six Degree-of-Freedom Haptic Device based on the Orthoglide and the Agile Eye |
Abstract: The aim of this paper is to present a new six degree-of-freedom (dof) haptic device using two parallel mechanisms. The first one, called orthoglide, provides the translation motions and the second one produces the rotational motions. These two motions are decoupled to simplify the direct and inverse kinematic... |
Title: L'orthoglide : une machine-outil rapide d'architecture parall\`ele isotrope |
Abstract: This article presents the Orthoglide project. The purpose of this project is the realization of a prototype of machine tool to three degrees of translation. The characteristic of this machine is a parallel kinematic architecture optimized to obtain a compact workspace with homogeneous performance. For that, t... |
Title: A Comparative Study of Parallel Kinematic Architectures for Machining Applications |
Abstract: Parallel kinematic mechanisms are interesting alternative designs for machining applications. Three 2-DOF parallel mechanism architectures dedicated to machining applications are studied in this paper. The three mechanisms have two constant length struts gliding along fixed linear actuated joints with differe... |
Title: Kinematic Analysis of a New Parallel Machine Tool: the Orthoglide |
Abstract: This paper describes a new parallel kinematic architecture for machining applications: the orthoglide. This machine features three fixed parallel linear joints which are mounted orthogonally and a mobile platform which moves in the Cartesian x-y-z space with fixed orientation. The main interest of the orthogl... |
Title: The Computation of All 4R Serial Spherical Wrists With an Isotropic Architecture |
Abstract: A spherical wrist of the serial type is said to be isotropic if it can attain a posture whereby the singular values of its Jacobian matrix are all identical and nonzero. What isotropy brings about is robustness to manufacturing, assembly, and measurement errors, thereby guaranteeing a maximum orientation accu... |
Title: Bijective Faithful Translations among Default Logics |
Abstract: In this article, we study translations between variants of defaults logics such that the extensions of the theories that are the input and the output of the translation are in a bijective correspondence. We assume that a translation can introduce new variables and that the result of translating a theory can e... |
Title: Learning Probabilistic Models of Word Sense Disambiguation |
Abstract: This dissertation presents several new methods of supervised and unsupervised learning of word sense disambiguation models. The supervised methods focus on performing model searches through a space of probabilistic models, and the unsupervised methods rely on the use of Gibbs Sampling and the Expectation Maxi... |
Title: Families of dendrograms |
Abstract: A conceptual framework for cluster analysis from the viewpoint of p-adic geometry is introduced by describing the space of all dendrograms for n datapoints and relating it to the moduli space of p-adic Riemannian spheres with punctures using a method recently applied by Murtagh (2004b). This method embeds a d... |
Title: Importance Tempering |
Abstract: Simulated tempering (ST) is an established Markov chain Monte Carlo (MCMC) method for sampling from a multimodal density $\pi(\theta)$. Typically, ST involves introducing an auxiliary variable $k$ taking values in a finite subset of $[0,1]$ and indexing a set of tempered distributions, say $\pi_k(\theta) \pro... |
Title: A Leaf Recognition Algorithm for Plant Classification Using Probabilistic Neural Network |
Abstract: In this paper, we employ Probabilistic Neural Network (PNN) with image and data processing techniques to implement a general purpose automated leaf recognition algorithm. 12 leaf features are extracted and orthogonalized into 5 principal variables which consist the input vector of the PNN. The PNN is trained ... |
Title: Open Problems in Algebraic Statistics |
Abstract: Algebraic statistics is concerned with the study of probabilistic models and techniques for statistical inference using methods from algebra and geometry. This article presents a list of open mathematical problems in this emerging field, with main emphasis on graphical models with hidden variables, maximum li... |
Title: Active Set and EM Algorithms for Log-Concave Densities Based on Complete and Censored Data |
Abstract: We develop an active set algorithm for the maximum likelihood estimation of a log-concave density based on complete data. Building on this fast algorithm, we indidate an EM algorithm to treat arbitrarily censored or binned data. |
Title: Robust estimates in generalized partially linear models |
Abstract: In this paper, we introduce a family of robust estimates for the parametric and nonparametric components under a generalized partially linear model, where the data are modeled by $y_i|(_i,t_i)\sim F(\cdot,\mu_i)$ with $\mu_i=H(\eta(t_i)+_i^$$\beta)$, for some known distribution function F and link function H.... |
Title: Data-driven goodness-of-fit tests |
Abstract: We propose and study a general method for construction of consistent statistical tests on the basis of possibly indirect, corrupted, or partially available observations. The class of tests devised in the paper contains Neyman's smooth tests, data-driven score tests, and some types of multi-sample tests as bas... |
Title: Virtual screening with support vector machines and structure kernels |
Abstract: Support vector machines and kernel methods have recently gained considerable attention in chemoinformatics. They offer generally good performance for problems of supervised classification or regression, and provide a flexible and computationally efficient framework to include relevant information and prior kn... |
Title: Expert Elicitation for Reliable System Design |
Abstract: This paper reviews the role of expert judgement to support reliability assessments within the systems engineering design process. Generic design processes are described to give the context and a discussion is given about the nature of the reliability assessments required in the different systems engineering p... |
Title: Comment: Expert Elicitation for Reliable System Design |
Abstract: Comment: Expert Elicitation for Reliable System Design [arXiv:0708.0279] |
Title: Comment: Expert Elicitation for Reliable System Design |
Abstract: Comment: Expert Elicitation for Reliable System Design [arXiv:0708.0279] |
Title: Comment: Expert Elicitation for Reliable System Design |
Abstract: Comment: Expert Elicitation for Reliable System Design [arXiv:0708.0279] |
Title: Rejoinder: Expert Elicitation for Reliable System Design |
Abstract: Rejoinder: Expert Elicitation for Reliable System Design [arXiv:0708.0279] |
Title: Reliability |
Abstract: This special volume of Statistical Sciences presents some innovative, if not provocative, ideas in the area of reliability, or perhaps more appropriately named, integrated system assessment. In this age of exponential growth in science, engineering and technology, the capability to evaluate the performance, r... |
Title: Monitoring Networked Applications With Incremental Quantile Estimation |
Abstract: Networked applications have software components that reside on different computers. Email, for example, has database, processing, and user interface components that can be distributed across a network and shared by users in different locations or work groups. End-to-end performance and reliability metrics des... |
Title: Comment: Monitoring Networked Applications With Incremental Quantile Estimation |
Abstract: Comment: Monitoring Networked Applications With Incremental Quantile Estimation [arXiv:0708.0302] |
Title: Comment: Monitoring Networked Applications With Incremental Quantile Estimation |
Abstract: Our comments are in two parts. First, we make some observations regarding the methodology in Chambers et al. [arXiv:0708.0302]. Second, we briefly describe another interesting network monitoring problem that arises in the context of assessing quality of service, such as loss rates and delay distributions, in ... |
Title: Comment: Monitoring Networked Applications With Incremental Quantile Estimation |
Abstract: Comment: Monitoring Networked Applications With Incremental Quantile Estimation [arXiv:0708.0302] |
Title: Rejoinder: Monitoring Networked Applications With Incremental Quantile Estimation |
Abstract: Rejoinder: Monitoring Networked Applications With Incremental Quantile Estimation [arXiv:0708.0302] |
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