ppxscal/embedding_network huggingface dataset:
Seeing sounds and hearing sights: The influence of prior learning on current perception
Authors: Jennifer D. Ryan, Sandra N. Moses, Melanie L. Ostreicher, Timothy Bardouille, Anthony T. Herdman, Lily Riggs, Endel Tulving
Venue: Journal of Cognitive Neuroscience (2008)

It is well known that previous perceptual experiences alter subsequent perception, but the details of the neural underpinnings of this general phenomenon are still sketchy. Here, we ask whether previous experiences with an item (such as seeing a person's face) leads to the alteration of the neural correlates related to processing of the item as such, or whether it creates additional associative connections between such substrates and those activated during prior experience. To address this question, we used magnetoencephalography (MEG) to identify neural changes accompanying subjects' viewing of unfamiliar versus famous faces and hearing the names of unfamiliar versus famous names. We were interested in the nature of the involvement of auditory brain regions in the viewing of faces, and in the involvement of visual regions in the hearing of names. Evoked responses from MEG recordings for the names and faces conditions were localized to auditory and visual cortices, respectively. Unsurprisingly, peak activation strength of evoked responses was larger for famous versus nonfamous names within the superior temporal gyrus (STG), and was similar for famous and nonfamous faces in the occipital cortex. More relevant to the issue of experience on perception, peak activation strength in the STG was larger for viewed famous versus nonfamous faces, and peak activation within the occipital cortex was larger for heard famous versus nonfamous names. Critically, these experience-related responses were present within 150--250 msec of stimulus onset. These findings support the hypothesis that prior experiences may influence processing of faces and names such that perception encompasses more than what is imparted on the senses.
Towards an Adaptive Web Information System Based on Web Services
Authors: B. Soukkarieh, F. Sedes
Venue: Proceedings of the Fourth International Conference on Autonomic and Autonomous Systems (2008)

The appearance of wireless networks and mobile computing requires building context-aware Information Systems. These systems are more and more based on the usage of Web Services, which are designed to support interoperable application-to-application interaction over the web. Our aim is to build an Adaptive Web Information System based on Web Services. Our contribution aims at proposing a new architecture of Web Information Systems, supporting the adaptation process to the user context and returning to the user a list of Web Services adapted to his context. This architecture is based on an extension of AHA! architecture adding an adaptation layer containing various components dedicated to the context adaptation.
Designing Fault Tolerant Web Services Using BPEL
Authors: Jim Lau, Lau Cheuk Lung, Joni da S.Fraga, Giuliana Santos Veronese
Venue: Proceedings of the Seventh IEEE/ACIS International Conference on Computer and Information Science (icis 2008) (2008)

The web services technology provides an approach for developing distributed applications by using simple and well defined interfaces. Due to the flexibility of this architecture, it is possible to compose business processes integrating services from different domains. This paper presents an approach, which uses the specification of services orchestration, in order to create a fault tolerant model combining active and passive replication technique. This model support fault of crash. The characteristics and the results obtained by implementing this model are described along this paper.
Spatial correlations in SIR epidemic models
Authors: Henryk Fuks, Ryan Duchesne, Anna T. Lawniczak
Venue: Proceedings of the 7th WSEAS International Conference on Applied Mathematics (2005)

We investigate the role of global mixing in epidemic processes. We first construct a simplified model of the SIR epidemic using a realistic population distribution. Using this model, we examine possible mechanisms for destruction of spatial correlations, in an attempt to produce correlation curves similar to those reported recently for real epidemiological data. We find that introduction of a long-range interaction destroys spatial correlations very easily if neighbourhood sizes are homogeneous. For inhomogeneous neighbourhoods, very strong long-range coupling is required to achieve a similar effect.
Towards an Efficient and Extensible Grid-Based Data Storage Solution
Authors: Javier Delgado, Malek Adjouadi
Venue: Proceedings of the 22nd International Conference on Advanced Information Networking and Applications (2008)

The emergence of data-intensive applications in medical and other fields of study has created the need for increased storage space. It is often the case that these data should not or cannot be placed in the same domain. The data usually requires considerable computational power to process, which has inspired the area of Grid computing. This study proposes a new methodology for sharing storage volumes across distributed domains securely and making them accessible to all members of a grid. The proposed system was designed with the intent to integrate with the Globus Toolkit, which gives it the advantage of having useful features that are commonly necessary for data intensive applications.
Coherent pairs of linear functionals on the unit circle
Authors: A. Branquinho, A. Foulquié Moreno, F. Marcellán, M. N. Rebocho
Venue: Journal of Approximation Theory (2008)

In this paper we extend the concept of coherent pairs of measures from the real line to Jordan arcs and curves. We present a characterization of pairs of coherent measures on the unit circle: it is established that if (@m"0,@m"1) is a coherent pair of measures on the unit circle, then @m"0 is a semi-classical measure. Moreover, we obtain that the linear functional associated with @m"1 is a specific rational transformation of the linear functional corresponding to @m"0. Some examples are given.
MoBiS-Q: a tool for evaluating the success of mobile business services
Authors: Maiju Markova, Anne Aula, Teija Vainio, Heli Wigelius, Minna Kulju
Venue: Proceedings of the 9th international conference on Human computer interaction with mobile devices and services (2007)

Companies deploy mobile business services to enable efficient work processes and gain increases in productivity. However, the success of the services in fulfilling these goals depends on several factors from the usability of the service to its success in supporting the business processes of the companies. This paper reviews existing measures for the usability of services and measures for evaluating the effects of mobile business services on the productivity of the company. We discuss the usefulness of the existing measures in the mobile business context, where both mobility and work-context pose specific demands for the services. The review showed that existing measures rarely consider the great contextual variation caused by mobility of the services and the demands this poses on usability; which, in turn, affects productivity. To build a measurement tool that better meets the requirements of mobile business services, we completed case studies on two mobile business services, one used in passenger transport and the other in construction sites. Based on the understanding gained from the case studies, we propose a list of themes addressing both usability and productivity measures that work as the basis for a multidisciplinary measurement tool, MoBiS-Q.
The MARS-Based Research about Reliability Judgement of Members of Supply Chain Alliance
Authors: Song Jia-shan, Li Yong, Ji Feng, Sun Hao-ying, Zhu Ying, Peng Cheng
Venue: Proceedings of the First International Workshop on Knowledge Discovery and Data Mining (2008)

Supply chain alliance (SCA) is becoming an important origin for enterprises to win competitive advantages.How to judge reliability of members in SCA is an essential problem for SCA, and is also one of the key problems for members to keep long-term collaboration. The paper constructs a model to judge the members'reliability by multivariate adaptive regression splines (MARS) for the first time. MARS has the attributes of objectivity, effectivity and robust, and it could avoid dependency on subjective factors to some extent, which contributes to a scientific, integrated judgement system,and thus helps the SCA operate steadily and effectively. Key words: SCA, MARS, Reliability
Scenario-based requirements capture for human factors integration
Authors: Iain S. MacLeod
Venue: Cognition, Technology and Work (2008)

Scenarios have been used by many engineering disciplines to assist the quality of their professional application to systems throughout a system life-cycle. At early phases of the system life-cycle, Systems and Software Engineers have adopted the Use Case as a means of representing system requirements through the address of user functions. Furthermore, usability engineers also use scenarios as a means of promoting better usability of systems throughout the system life-cycle. Moreover, all practitioners of the mentioned disciplines use some form of requirements capture and trace throughout the system life-cycle. However, in general Human Factors (HF) and Human Factors Integration (HFI) practitioners do not. This paper examines the efficacy of the multi disciplinary use of scenarios to assist the capture of HFI and system requirements. Such an approach benefits the early establishment of requirements and thus supports system life-cycle trace and matching of both physical and cognitive functions.
Local binary patterns for a hybrid fingerprint matcher
Authors: Loris Nanni, Alessandra Lumini
Venue: Pattern Recognition (2008)

In this work, we present a novel hybrid fingerprint matcher system based on local binary patterns. The two fingerprints to be matched are first aligned using their minutiae, then the images are decomposed in several overlapping sub-windows, each sub-window is convolved with a bank of Gabor filters and, finally, the invariant local binary patterns histograms are extracted from the convolved images. Extensive experiments conducted over the four FVC2002 fingerprint databases show the effectiveness of the proposed hybrid approach with respect to the well-known Tico's minutiae matcher and other image-based approaches. Moreover, a BioHashing approach have been designed using the proposed fixed-length feature vector and very interesting performance has been obtained by combining it with the Tico's minutiae matcher.
On partial optimality in multi-label MRFs
Authors: Pushmeet Kohli, Alexander Shekhovtsov, Carsten Rother, Vladimir Kolmogorov, Philip Torr
Venue: Proceedings of the 25th international conference on Machine learning (2008)

We consider the problem of optimizing multilabel MRFs, which is in general NP-hard and ubiquitous in low-level computer vision. One approach for its solution is to formulate it as an integer linear programming and relax the integrality constraints. The approach we consider in this paper is to first convert the multi-label MRF into an equivalent binary-label MRF and then to relax it. The resulting relaxation can be efficiently solved using a maximum flow algorithm. Its solution provides us with a partially optimal labelling of the binary variables. This partial labelling is then easily transferred to the multi-label problem. We study the theoretical properties of the new relaxation and compare it with the standard one. Specifically, we compare tightness, and characterize a subclass of problems where the two relaxations coincide. We propose several combined algorithms based on the technique and demonstrate their performance on challenging computer vision problems.
Three-dimensional projection mask-less patterning (PMLP) of micro-lenses and cones: Monitoring and modelling of ion multi-beam kinetic sputtering in GaAs
Authors: Falco C. M. J. M. van Delft, Christoph Ebm, Emile P. Naburgh, Elmar Platzgummer, Hans Loeschner, Gerhard Gross
Venue: Microelectronic Engineering (2008)

A projection mask-less patterning (PMLP) proof-of-concept tool, realised as part of the European FP6-NMP integrated project CHARPAN (Charged Particle Nanotech), has been applied for three-dimensional patterning of a GaAs surface, using a stencil mask with a pre-defined opening distribution. A 10x10 matrix of micro-lenses was used as test structure for argon ion multi-beam structuring, while studying the time evolution of the sputtered structures. The kinetic sputtering and re-deposition have been modelled in simulation software, in order to be able to correct for such effects beforehand in the design of datasets to be fed to the future programmable aperture plate.
Modelling of Stability of Economic Systems Using Benchmarking and Dynamic Programming
Authors: Vitalijs Jurenoks, Vladimirs Jansons, Konstantins Didenko
Venue: Proceedings of the Tenth International Conference on Computer Modeling and Simulation (2008)

Crucial component of the successful performance of an economic system (ECSYS) is maintenance of an optimality of functioning of all industrial and economic criteria of the given system. The purpose of the given work is stochastic modelling of the stability of ECSYS. The process of deterministic and stochastic modelling of ECSYS stability is considered in the conditions of uncertainty using benchmarking and dynamic programming method by Bellman.
Interface design and engagement with older people
Authors: D. Hawthorn
Venue: Behaviour & Information Technology (2007)

The current paper examines the design process that led to an unusually successful interactive tutorial for older people. The paper describes the issues that make designing for older people different. These include differences between the designer and the target population and the difficulty that older people have in interacting with low-fidelity prototypes. Ways of altering the design process to address these issues and to obtain useful design contributions from older participants are described.
Romeo and Juliet: an infrared search system
Authors: Maria Rita Laganà, Marco Righi
Venue: Proceedings of the 1st international conference on Robot communication and coordination (2007)

The aim of this paper is to describe a comprehensive system of two robots that are able to localize each other in real-time using an infrared communication. The robots start from a distance between 10 and 50 cm and they do not know each other's position. The can only communicate by a half-duplex channel. The robots use a simple localization algorithm to meet.
Density-contrast instabilities in finite element modelling of slow viscous flow
Authors: J. Pearse, R. C. Bailey
Venue: International Journal of Computational Fluid Dynamics (2007)

Finite element methods are often used to model Earth processes involving slow viscous or viscoelastic flow. Inertial terms of the Navier-Stokes equations are neglected in very slow flows, so timestep size is not limited by the Courant instability. However, where there is advection of density contrasts in a gravitational field, over-advection can lead to numerically induced flow oscillations. We derive analytic results for the maximum stable timestep size in two cases: a free surface over a fluid of uniform density, and a free surface kept level by sedimentation/erosion, but with a density gradient in the underlying medium. Using parameters appropriate to the Earth's crust we show that the density-contrast instability occurs for timesteps larger than 3000 years for the constant-density case. For a fluid with a density gradient of 10 kg/m3 per km the solution is stable for timesteps up to about 200,000 years if full erosion/sedimentation is implemented.
The chromatic covering number of a graph
Authors: Reza Naserasr, Claude Tardif
Venue: Journal of Graph Theory (2006)

Following [1], we investigate the problem of covering a graph G with induced subgraphs G1,&hellip;, Gk of possibly smaller chromatic number, but such that for every vertex u of G, the sum of reciprocals of the chromatic numbers of the Gi's containing u is at least 1. The existence of such &ldquo;chromatic coverings&rdquo; provides some bounds on the chromatic number of G. &copy; 2005 Wiley Periodicals, Inc. Support from the NSERC research grant of Professor Pavol Hell is gratefully acknowledged. This research was conducted in part while the second author was visiting Simon Fraser University. The support of Pavol Hell is gratefully acknowledged.
Kinematic and Static Analysis of a Three-degree-of-freedom Spatial Modular Tensegrity Mechanism
Authors: Marc Arsenault, Clément M. Gosselin
Venue: International Journal of Robotics Research (2008)

Tensegrity mechanisms benefit from a reduced inertia due to their extensive use of cables and springs. However, they must be prestressed at all times in order to keep the cables in tension. For a given mechanism architecture, this is only possible in a specific set of configurations such that the analysis of these mechanisms is relatively complex. This paper presents the development and analysis of a new three-degree-of-freedom positional tensegrity mechanism that has a modular architecture. The mechanism, actuated by cables, has a relatively large workspace. For the special case where external and gravitational forces are neglected, solutions are given for the mechanism's equilibrium configuration both for given actuator positions as well as for a specified position of its effector. It is shown that the mechanism can be considered as an assembly of construction elements based on Snelson's X-shape tensegrity system and that these behave independently from one another.
Terror on the Internet: A Complex Issue, and Getting Harder
Authors: Greg Goth
Venue: IEEE Distributed Systems Online (2008)

The fight against terror on the World Wide Web, chat rooms, and forums tends to take a maddeningly circular route. Politicians demand a crackdown on the terrorist presence on the Web, calling on ISPs to develop new technologies that will block access to terrorist sites or to detect their origin and shut them down. Just as quickly, the sites' operators relaunch from another host. Courts have found numerous efforts to thwart terror to be an abridgment of users' rights of free speech; white-hat security analysts cringe when the political posturing leads to dismantling sites they've been surreptitiously monitoring.
Software thermal management of dram memory for multicore systems
Authors: Jiang Lin, Hongzhong Zheng, Zhichun Zhu, Eugene Gorbatov, Howard David, Zhao Zhang
Venue: ACM SIGMETRICS Performance Evaluation Review (2008)

Thermal management of DRAM memory has become a critical issue for server systems. We have done, to our best knowledge, the first study of software thermal management for memory subsystem on real machines. Two recently proposed DTM (Dynamic Thermal Management) policies have been improved and implemented in Linux OS and evaluated on two multicore servers, a Dell PowerEdge 1950 server and a customized Intel SR1500AL server testbed. The experimental results first confirm that a system-level memory DTM policy may significantly improve system performance and power efficiency, compared with existing memory bandwidth throttling scheme. A policy called DTM-ACG (Adaptive Core Gating) shows performance improvement comparable to that reported previously. The average performance improvements are 13.3% and 7.2% on the PowerEdge 1950 and the SR1500AL (vs. 16.3% from the previous simulation-based study), respectively. We also have surprising findings that reveal the weakness of the previous study: the CPU heat dissipation and its impact on DRAM memories, which were ignored, are significant factors. We have observed that the second policy, called DTM-CDVFS (Coordinated Dynamic Voltage and Frequency Scaling), has much better performance than previously reported for this reason. The average improvements are 10.8% and 15.3% on the two machines (vs. 3.4% from the previous study), respectively. It also significantly reduces the processor power by 15.5% and energy by 22.7% on average.
Correlation verification between transistor variability model with body biasing and ring oscillation frequency in 90nm subthreshold circuits
Authors: Hiroshi Fuketa, Masanori Hashimoto, Yukio Mitsuyama, Takao Onoye
Venue: Proceeding of the 13th international symposium on Low power electronics and design (2008)

This paper presents modeling of manufacturing variability and body bias effect for subthreshold circuits based on measurement of a device array circuit in a 90nm technology. The device array consists of P/NMOS transistors and ring oscillators. This work verifies the correlation between the variation model extracted from IV measurement results and oscillation frequencies, which means the transistor-level variation model is examined and confirmed in terms of circuit performance. We demonstrate that delay variations of subthreshold circuits are well characterized with two parameters - threshold voltage and subthreshold swing parameter. We reveal that body bias effect is a less statistical phenomenon and threshold voltage shift by body biasing can be modeled deterministically.
Refining and verifying regular Petri nets
Authors: Li Jiao
Venue: International Journal of Systems Science (2008)

This paper considers two kinds of refinement transformations in terms of places and transitions, and proves that regularity can be preserved automatically for pure and ordinary connected nets under the two refinement transformations. By discussing the relationship between siphons of the original net and the refined net, this paper proves that liveness and boundedness can also be preserved automatically for these refined regular Petri nets. The two property-preserved refinement transformations can be used to construct large and complex net models in Petri-net-based system design and verification. An example coming from the manufacturing system is used to illustrate main results of this paper.
Effective and efficient semantic web data management over DB2
Authors: Li Ma, Chen Wang, Jing Lu, Feng Cao, Yue Pan, Yong Yu
Venue: Proceedings of the 2008 ACM SIGMOD international conference on Management of data (2008)

With the fast growth of Semantic Web, more and more RDF data and ontologies are created and widely used in Web applications and enterprise information systems. It is reported that the W3C Linking Open Data community project consists of over two billion RDF triples, which are interlinked by about three million RDF links. Recently, efficient RDF data management on top of relational databases gains particular attentions from both Semantic Web community and database community. In this paper, we present effective and efficient Semantic Web data management over DB2, including efficient schema and indexes design for storage, practical ontology reasoning support, and an effective SPARQL-to-SQL translation method for RDF query. Moreover, we show the performance and scalability of our system by an evaluation among well-known RDF stores and discuss future work.
Wearable Activity Tracking in Car Manufacturing
Authors: Thomas Stiefmeier, Daniel Roggen, Georg Ogris, Paul Lukowicz, Gerhard Tröster
Venue: IEEE Pervasive Computing (2008)

In an industrial scenario, a context-aware wearable computing system could support a production or maintenance worker. The system could recognize the worker's actions and deliver just-in-time information about activities the worker is to perform. This article reports on an ongoing effort to develop and test such real-life industrial activity-tracking systems within the European Union wearIT@work project. Two case studies conducted in cooperation with the European car manufacturer Skoda demonstrate how the system supports the training of assembly workers and quality assurance in the assembly line. The lessons learned from these studies are applicable in other areas. This article is part of a special issue on activity-based computing.