text stringlengths 0 4.09k |
|---|
Title: Stiffness Analysis of Parallel Manipulators with Preloaded Passive Joints |
Abstract: The paper presents a methodology for the enhanced stiffness analysis of parallel manipulators with internal preloading in passive joints. It also takes into account influence of the external loading and allows computing both the non-linear "load-deflection" relation and the stiffness matrices for any given lo... |
Title: Performance evaluation of parallel manipulators for milling application |
Abstract: This paper focuses on the performance evaluation of the parallel manipulators for milling of composite materials. For this application the most significant performance measurements, which denote the ability of the manipulator for the machining are defined. In this case, optimal synthesis task is solved as a m... |
Title: MUDOS-NG: Multi-document Summaries Using N-gram Graphs (Tech Report) |
Abstract: This report describes the MUDOS-NG summarization system, which applies a set of language-independent and generic methods for generating extractive summaries. The proposed methods are mostly combinations of simple operators on a generic character n-gram graph representation of texts. This work defines the set ... |
Title: Multinomial Inverse Regression for Text Analysis |
Abstract: Text data, including speeches, stories, and other document forms, are often connected to sentiment variables that are of interest for research in marketing, economics, and elsewhere. It is also very high dimensional and difficult to incorporate into statistical analyses. This article introduces a straightforw... |
Title: Mixture Modeling for Marked Poisson Processes |
Abstract: We propose a general modeling framework for marked Poisson processes observed over time or space. The modeling approach exploits the connection of the nonhomogeneous Poisson process intensity with a density function. Nonparametric Dirichlet process mixtures for this density, combined with nonparametric or sem... |
Title: Sparse motion segmentation using multiple six-point consistencies |
Abstract: We present a method for segmenting an arbitrary number of moving objects in image sequences using the geometry of 6 points in 2D to infer motion consistency. The method has been evaluated on the Hopkins 155 database and surpasses current state-of-the-art methods such as SSC, both in terms of overall performan... |
Title: Bisimulations for fuzzy transition systems |
Abstract: There has been a long history of using fuzzy language equivalence to compare the behavior of fuzzy systems, but the comparison at this level is too coarse. Recently, a finer behavioral measure, bisimulation, has been introduced to fuzzy finite automata. However, the results obtained are applicable only to fin... |
Title: Nondeterministic fuzzy automata |
Abstract: Fuzzy automata have long been accepted as a generalization of nondeterministic finite automata. A closer examination, however, shows that the fundamental property---nondeterminism---in nondeterministic finite automata has not been well embodied in the generalization. In this paper, we introduce nondeterminist... |
Title: Inherent Difficulties of Non-Bayesian Likelihood-based Inference, as Revealed by an Examination of a Recent Book by Aitkin |
Abstract: For many decades, statisticians have made attempts to prepare the Bayesian omelette without breaking the Bayesian eggs; that is, to obtain probabilistic likelihood-based inferences without relying on informative prior distributions. A recent example is Murray Aitkin's recent book, \em Statistical Inference, w... |
Title: Integrating digital human modeling into virtual environment for ergonomic oriented design |
Abstract: Virtual human simulation integrated into virtual reality applications is mainly used for virtual representation of the user in virtual environment or for interactions between the user and the virtual avatar for cognitive tasks. In this paper, in order to prevent musculoskeletal disorders, the integration of v... |
Title: Stiffness modelling of parallelogram-based parallel manipulators |
Abstract: The paper presents a methodology to enhance the stiffness analysis of parallel manipulators with parallelogram-based linkage. It directly takes into account the influence of the external loading and allows computing both the non-linear ``load-deflection" relation and relevant rank-deficient stiffness matrix. ... |
Title: Deep determinism and the assessment of mechanistic interaction between categorical and continuous variables |
Abstract: Our aim is to detect mechanistic interaction between the effects of two causal factors on a binary response, as an aid to identifying situations where the effects are mediated by a common mechanism. We propose a formalization of mechanistic interaction which acknowledges asymmetries of the kind "factor A inte... |
Title: Affine Invariant, Model-Based Object Recognition Using Robust Metrics and Bayesian Statistics |
Abstract: We revisit the problem of model-based object recognition for intensity images and attempt to address some of the shortcomings of existing Bayesian methods, such as unsuitable priors and the treatment of residuals with a non-robust error norm. We do so by using a refor- mulation of the Huber metric and careful... |
Title: On the Implementation of GNU Prolog |
Abstract: GNU Prolog is a general-purpose implementation of the Prolog language, which distinguishes itself from most other systems by being, above all else, a native-code compiler which produces standalone executables which don't rely on any byte-code emulator or meta-interpreter. Other aspects which stand out include... |
Title: Context Aware End-to-End Connectivity Management |
Abstract: In a dynamic heterogeneous environment, such as pervasive and ubiquitous computing, context-aware adaptation is a key concept to meet the varying requirements of different users. Connectivity is an important context source that can be utilized for optimal management of diverse networking resources. Applicatio... |
Title: A Tutorial on Bayesian Optimization of Expensive Cost Functions, with Application to Active User Modeling and Hierarchical Reinforcement Learning |
Abstract: We present a tutorial on Bayesian optimization, a method of finding the maximum of expensive cost functions. Bayesian optimization employs the Bayesian technique of setting a prior over the objective function and combining it with evidence to get a posterior function. This permits a utility-based selection of... |
Title: Real-time Visual Tracking Using Sparse Representation |
Abstract: The $\ell_1$ tracker obtains robustness by seeking a sparse representation of the tracking object via $\ell_1$ norm minimization . However, the high computational complexity involved in the $ \ell_1 $ tracker restricts its further applications in real time processing scenario. Hence we propose a Real Time Com... |
Title: Inverse-Category-Frequency based supervised term weighting scheme for text categorization |
Abstract: Term weighting schemes often dominate the performance of many classifiers, such as kNN, centroid-based classifier and SVMs. The widely used term weighting scheme in text categorization, i.e., tf.idf, is originated from information retrieval (IR) field. The intuition behind idf for text categorization seems le... |
Title: Categorial Minimalist Grammar |
Abstract: We first recall some basic notions on minimalist grammars and on categorial grammars. Next we shortly introduce partially commutative linear logic, and our representation of minimalist grammars within this categorial system, the so-called categorial minimalist grammars. Thereafter we briefly present \lambda\m... |
Title: Cusp points in the parameter space of RPR-2PRR parallel manipulator |
Abstract: This paper investigates the existence conditions of cusp points in the design parameter space of the RR-2PR parallel manipulators. Cusp points make possible non-singular assembly-mode changing motion, which can possibly increase the size of the aspect, i.e. the maximum singularity free workspace. The method u... |
Title: Joint space and workspace analysis of a two-DOF closed-chain manipulator |
Abstract: The aim of this paper is to compute of the generalized aspects, i.e. the maximal singularity-free domains in the Cartesian product of the joint space and workspace, for a planar parallel mechanism in using quadtree model and interval analysis based method. The parallel mechanisms can admit several solutions t... |
Title: On the determination of cusp points of 3-RR parallel manipulators |
Abstract: This paper investigates the cuspidal configurations of 3-RPR parallel manipulators that may appear on their singular surfaces in the joint space. Cusp points play an important role in the kinematic behavior of parallel manipulators since they make possible a non-singular change of assembly mode. In previous w... |
Title: Phase Transitions of Plan Modification in Conformant Planning |
Abstract: We explore phase transitions of plan modification, which mainly focus on the conformant planning problems. By analyzing features of plan modification in conformant planning problems, quantitative results are obtained. If the number of operators is less than, almost all conformant planning problems can't be so... |
Title: Comparison of Planar Parallel Manipulator Architectures based on a Multi-objective Design Optimization Approach |
Abstract: This paper deals with the comparison of planar parallel manipulator architectures based on a multi-objective design optimization approach. The manipulator architectures are compared with regard to their mass in motion and their regular workspace size, i.e., the objective functions. The optimization problem is... |
Title: Experimental Comparison of Representation Methods and Distance Measures for Time Series Data |
Abstract: The previous decade has brought a remarkable increase of the interest in applications that deal with querying and mining of time series data. Many of the research efforts in this context have focused on introducing new representation methods for dimensionality reduction or novel similarity measures for the un... |
Title: Zero Variance Markov Chain Monte Carlo for Bayesian Estimators |
Abstract: Interest is in evaluating, by Markov chain Monte Carlo (MCMC) simulation, the expected value of a function with respect to a, possibly unnormalized, probability distribution. A general purpose variance reduction technique for the MCMC estimator, based on the zero-variance principle introduced in the physics l... |
Title: On the Combinatorial Multi-Armed Bandit Problem with Markovian Rewards |
Abstract: We consider a combinatorial generalization of the classical multi-armed bandit problem that is defined as follows. There is a given bipartite graph of $M$ users and $N \geq M$ resources. For each user-resource pair $(i,j)$, there is an associated state that evolves as an aperiodic irreducible finite-state Mar... |
Title: On the size of data structures used in symbolic model checking |
Abstract: Temporal Logic Model Checking is a verification method in which we describe a system, the model, and then we verify whether some properties, expressed in a temporal logic formula, hold in the system. It has many industrial applications. In order to improve performance, some tools allow preprocessing of the mo... |
Title: To study the phenomenon of the Moravec's Paradox |
Abstract: "Encoded in the large, highly evolved sensory and motor portions of the human brain is a billion years of experience about the nature of the world and how to survive in it. The deliberate process we call reasoning is, I believe, the thinnest veneer of human thought, effective only because it is supported by t... |
Title: TILT: Transform Invariant Low-rank Textures |
Abstract: In this paper, we show how to efficiently and effectively extract a class of "low-rank textures" in a 3D scene from 2D images despite significant corruptions and warping. The low-rank textures capture geometrically meaningful structures in an image, which encompass conventional local features such as edges an... |
Title: A new Recommender system based on target tracking: a Kalman Filter approach |
Abstract: In this paper, we propose a new approach for recommender systems based on target tracking by Kalman filtering. We assume that users and their seen resources are vectors in the multidimensional space of the categories of the resources. Knowing this space, we propose an algorithm based on a Kalman filter to tra... |
Title: Dynamic Capitalization and Visualization Strategy in Collaborative Knowledge Management System for EI Process |
Abstract: Knowledge is attributed to human whose problem-solving behavior is subjective and complex. In today's knowledge economy, the need to manage knowledge produced by a community of actors cannot be overemphasized. This is due to the fact that actors possess some level of tacit knowledge which is generally difficu... |
Title: Data Conflict Resolution Using Trust Mappings |
Abstract: In massively collaborative projects such as scientific or community databases, users often need to agree or disagree on the content of individual data items. On the other hand, trust relationships often exist between users, allowing them to accept or reject other users' beliefs by default. As those trust rela... |
Title: Dynamic Knowledge Capitalization through Annotation among Economic Intelligence Actors in a Collaborative Environment |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.