ppxscal/embedding_network huggingface dataset:
4D radar based on ADS-B
Authors: Maria Gutierrez, Gerardo Aranguren, Miguel Rodriguez, Javier Bilbao
Venue: Proceedings of the 8th conference on Signal, Speech and image processing (2008)

The increase of air traffic is leading to the need for new aerial surveillance techniques. With this purpose secondary radars under the standard ADS-B, which will be implemented over the coming years, have been developed. In this paper we present an application of ADS-B radars capable of showing the air traffic in real time in a simple way by means of a 4D representation and a graphical interface. This application presents numerous advantages that can be used by courses for pilots, flying clubs, air traffic controllers, control towers, air companies (green trajectories), aircraft (IN ADS-B), airport service vehicles, etc.
Roball interacting with children
Authors: Tamie Salter, Francois Michaud, Dominic Letourneau
Venue: Proceedings of the 4th ACM/IEEE international conference on Human robot interaction (2009)

This video shows a light hearted view of a rolling autonomous robot named Roball. Roball is shown interacting with various children who age from 10 months old to teenagers at a high school. The clips show the different ways children interact with Roball and also the different types of reactions the children can have to Roball. Each clip was taken from a trial that was conducted to investigate Child-Robot Interaction (CRI). First we see the different reactions of young children (tikes) aged between 2 to 4 years. We see them laughing, chasing Roball, dancing to music that Roball is playing and also running away from Roball. It is possible to see how active this age group can be in there interaction. Next we see a 10 month old toddler enjoying hitting Roball and then we see this child apparently showing some form of affection to Roball. Then after watching Roball bang into a door we see the toddler copy the behaviour by also banging into the door. Proceeding is the very different style of interaction from teenagers. Despite Roball gaining a lot of interest the actual physical contact or interaction is much lower. We see the robot being purposefully kicked and also a teenager pretending to kick Roball in a show of bravado. Finally we see the dangers of being a rolling robot when in the presence of a group of teenagers, as Roball through random wandering rolls into the path of a group of teenagers walking at high speeds. Although this is a lighthearted view there are still many important CRI factors that can be gained from watching the footage.
Strongly regular tri-Cayley graphs
Authors: Klavdija Kutnar, Dragan Marušič, Štefko Miklavič, Primo Šparl
Venue: European Journal of Combinatorics (2009)

A graph is called tri-Cayley if it admits a semiregular subgroup of automorphisms having three orbits of equal length. In this paper, the structure of strongly regular tri-Cayley graphs is investigated. A structural description of strongly regular tri-Cayley graphs of cyclic groups is given.
On treat the sequence spaces as special cases of approximation
Authors: Costel Aldea
Venue: Proceedings of the 12th WSEAS international conference on Computers (2008)

In this paper are applied some results from the abstract theory of approximation to the sequence spaces, which are presented as special cases of approximation. The ideea was suggested by the fact that the approximation ideals of operators are special cases of approximation spaces [5]. So that using the result from [6] a sequence space is a particular type of approximation space.
Influences of DSS Environments and Models on Current Business Decision and Knowledge Management
Authors: Md. Fazle Munim, Fatima Binte Zia
Venue: Proceedings of the 2009 International Conference on Computer Engineering and Technology - Volume 01 (2009)

This paper mainly discussed on the influence of Decision Support System DSS's environments and models on current global business decision and knowledge management. While describing the different stages of DSS development it also clarifies the influencing environments as well as the models of DSS. It is also identify the relation between Data, Information and Knowledge.
PlantGL: A Python-based geometric library for 3D plant modelling at different scales
Authors: C. Pradal, F. Boudon, C. Nouguier, J. Chopard, C. Godin
Venue: Graphical Models (2009)

In this paper, we present PlantGL, an open-source graphic toolkit for the creation, simulation and analysis of 3D virtual plants. This C++ geometric library is embedded in the Python language which makes it a powerful user-interactive platform for plant modeling in various biological application domains. PlantGL makes it possible to build and manipulate geometric models of plants or plant parts, ranging from tissues and organs to plant populations. Based on a scene graph augmented with primitives dedicated to plant representation, several methods are provided to create plant architectures from either field measurements or procedural algorithms. Because they are particularly useful in plant design and analysis, special attention has been paid to the definition and use of branching system envelopes. Several examples from different modelling applications illustrate how PlantGL can be used to construct, analyse or manipulate geometric models at different scales ranging from tissues to plant communities.
Wireless Multicast Cross-Layer Framework for Rate Allocation: Protocol Design
Authors: Amr Mohamed, Hussein Alnuweiri
Venue: Proceedings of the 2008 The Second International Conference on Next Generation Mobile Applications, Services, and Technologies (2008)

Multicast-based data communication is an efficient communication scheme especially in multihop ad hoc networks where the MAC layer is based on one-hop broadcast from one source to multiple receivers. In this paper, we discuss a framework of rate allocation for a set of multicast sessions over multihop wireless networks. We propose a framework that facilitates the online calculation of the optimal rates for a set of multicast sessions such that the aggregate utility for all sessions is maximized. This framework is used to steer the entire network of ad hoc nodes towards the optimal point in real time using a totally distributed and asynchronous environment settings. We present a series of implementations based on different network settings and show that not only convergence to the optimal rates is attained in all these network settings but also network changing conditions such as mobility and dynamic channel capacity can be tracked in real time.
The effects of information overload on consumers' subjective state towards buying decision in the internet shopping environment
Authors: Yu-Chen Chen, Rong-An Shang, Chen-Yu Kao
Venue: Electronic Commerce Research and Applications (2009)

One of the strengths of e-retailers is their ability to convey rich information to their customers. The theory of information overload, however, predicts that, beyond a threshold, more information leads to worse quality of, but a better subjective state towards the buying decisions. This study, via re-appraising the conception of decision quality, subjective state towards decision, and threshold of information load, proposes an extended model, considering the roles of information filtering mechanisms, on-line shopping experience, and perceived information overload, to examine the effects of information load on subjective state towards decision. An experiment was conducted to test the research model. The results indicate that rich information leads to a perception of high information overload; and the latter lead consumers to a worse subject state towards decision. Information filtering tools and on-line shopping experience may have influences on relieving but are not the panacea to the phenomenon of information overload. Novice consumers may face a more serious information overload problem.
Energy Conservation Diagnosis Based on Neural Network and Statistical Computing
Authors: Li-Feng Tsai, Yuan-Tai Ku, Ya-Ching Chang, Hsin-Lan Chung
Venue: Proceedings of the 2009 International Conference on Computer Engineering and Technology - Volume 02 (2009)

Motor systems are highly important and are critical components in industrial processes. Up to 60% of the electricity produced in the U.S. converts into other forms of energy to provide power to equipment through motor [1]. Machinery reliability and performance can be improved with early fault diagnosis and condition monitoring; therefore, the fault diagnosis system for motor has been highlighted for years. However, among these various diagnosis systems, they all focus on the reliability but not the energy issue. Based on IEA research, the energy consumption of electric motors could be reduced up to 7% with modern engineering approach; unfortunately, the abnormal energy consumption caused by motor faults did not get the reasonable attentions. This paper is presenting an approach for energy conservation diagnosis that could predict the trend of abnormal energy consumption caused by motor faults and enabled the early energy conservation work.
A BSP-based algorithm for dimensionally nonhomogeneous planar implicit curves with topological guarantees
Authors: Abel J. P. Gomes, José F. M. Morgado, Edgar S. Pereira
Venue: ACM Transactions on Graphics (TOG) (2009)

Mathematical systems (e.g., Mathematica, Maple, Matlab, and DPGraph) easily plot planar algebraic curves implicitly defined by polynomial functions. However, these systems, and most algorithms found in the literature, cannot draw many implicit curves correctly; in particular, those with singularities (self-intersections, cusps, and isolated points). They do not detect sign-invariant components either, because they use numerical methods based on the Bolzano corollary, that is, they assume that the curve-describing function f flips sign somewhere in a line segment &ABhorbar; that crosses the curve, or f(A)&middot;f(B) < 0. To solve these problems, we have generalized the False Position (FP) method to determine two types of zeros: (i) crossing zeros and (ii) extremal zeros (local minima and maxima without function sign variation). We have called this method the Generalized False Position (GFP) method. It allows us to sample an implicit curve against the Binary Space Partitioning (BSP), say bisection lines, of a rectangular region of R2. Interestingly, the GFP method can also be used to determine isolated points of the curve. The result is a general algorithm for sampling and rendering planar implicit curves with topological guarantees.
Client ahead-of-time compiler for embedded Java platforms
Authors: Sunghyun Hong, Jin-Chul Kim, Soo-Mook Moon, Jin Woo Shin, Jaemok Lee, Hyeong-Seok Oh, Hyung-Kyu Choi
Venue: Software&mdash;Practice Experience (2009)

Many embedded Java platforms execute two types of Java classes: those installed statically on the client device and those downloaded dynamically from service providers at run time. For achieving higher performance, the static Java classes can be compiled into machine code by ahead-of-time compiler (AOTC) in the server, and the translated machine code can be installed on the client device. Unfortunately, AOTC cannot be applicable to the dynamically downloaded classes. This paper proposes client-AOTC (c-AOTC), which performs AOTC on the client device using the just-in-time compiler (JITC) module installed on the device, obviating the JITC overhead and complementing the server-AOTC. The machine code of a method translated by JITC is cached on a persistent memory of the device, and when the method is invoked again in a later run of the program, the machine code is loaded and executed directly without any translation overhead. A major issue in c-AOTC is relocation because some of the address constants embedded in the cached machine code are not correct when the machine code is loaded and used in a different run; those addresses should be corrected before they are used. Constant pool resolution and inlining complicate the relocation problem, and we propose our solutions. The persistent memory overhead for saving the relocation information is also an issue, and we propose a technique to encode the relocation information and compress the machine code efficiently. We developed a c-AOTC on Sun's CDC VM reference implementation, and our evaluation results indicate that c-AOTC can improve the performance significantly, as much as an average of 12% for EEMBC and 4% for SpecJVM98, with a persistent memory overhead of 1% on average. Copyright &copy; 2008 John Wiley Sons, Ltd. This is a revised and expanded version of a paper published in ACM SIGPLAN-SIGBED 2007 Conference on Languages, Compilers, and Tools for Embedded Systems (LCTES'07) [1].
Asymptotic expansions in mean and covariance structure analysis
Authors: Haruhiko Ogasawara
Venue: Journal of Multivariate Analysis (2009)

Asymptotic expansions of the distributions of parameter estimators in mean and covariance structures are derived. The parameters may be common to, or specific in means and covariances of observable variables. The means are possibly structured by the common/specific parameters. First, the distributions of the parameter estimators standardized by the population asymptotic standard errors are expanded using the single- and the two-term Edgeworth expansions. In practice, the pivotal statistic or the Studentized estimator with the asymptotically distribution-free standard error is of interest. An asymptotic distribution of the pivotal statistic is also derived by the Cornish-Fisher expansion. Simulations are performed for a factor analysis model with nonzero factor means to see the accuracy of the asymptotic expansions in finite samples.
Problem solving of partial discharge on the distribution system
Authors: Narong Mungkung, Komkrit Chomsuwan, Karun Morasilp, Panumat Lmsuwan, Warawut Poolperm, Toshifumi Yuji
Venue: Proceedings of the 7th conference on Circuits, systems, electronics, control and signal processing (2008)

This paper presents the mitigation methods of PD on PIC in Provincial Electricity Authority (PEA) distribution system. The area located near the coast will be selected as the pilot project because of having strong occurrence of PD which is mainly caused by salt contamination. The methods applied in this experiment consist of using tie wires made from an insulation sheath of low voltage cable, the sheath of PIC itself; composite tie wire and aluminium tie wire (reverse loop binding). Following the trial results, there are two methods that considered as the most effective ways for PD solving; binding PIC by using the PIC's insulation sheath and the composite tie wire instead of aluminium tie wire (conventional binding).
Kangaroo: the trampoline entertainment system for aiding exercise
Authors: Hiroshi Mori, Tomoyuki Fujieda, Kazuhito Shiratori, Jun'ichi Hoshino
Venue: Proceedings of the 2008 International Conference on Advances in Computer Entertainment Technology (2008)

Trampobics is an aerobics training method using a mini trampoline. It substantially decreases damage to the joints compared with aerobics on the floor. The benefits of trampobics include an improvement in balance, more active internal organs, and burning of fat. Thus, trampobics promotes a healthy posture[1][2]. Today some people engage in trampobics in trampobics class. However, it is not gaining in popularity. In this paper, we add visual effects to trampobics and aim to make it more engaging to the general public.
The connected traveler: using location and personalization on mobile devices to improve transportation
Authors: Christian Manasseh, Katherine Ahern, Raja Sengupta
Venue: Proceedings of the 2nd International Workshop on Location and the Web (2009)

In this paper we present the connected traveler architecture that allows mobile users to personalize the delivery of transportation related content. The widespread use of mobile devices and the increasing availability of wireless internet present an opportunity for transportation engineers to deliver mobility and safety content to the drivers, pedestrians and public transit users. Connectedtraveler.org enables this technology by combining the location of the mobile user with pre-defined personalized profiles to improve user experience.
Behavioral analysis of cooperative/competitive antibody dynamics in garbage cleaning applications
Authors: Madhumala Ghosh, Amit Konar, L. C. Jain, Uday K. Chakraborty
Venue: Journal of Intelligent Fuzzy Systems: Applications in Engineering and Technology (2009)

The paper presents an analysis of chaos, limit cycles and stability in the antigen-antibody interactive dynamics. Both co-operation and competition of antibodies are considered in the dynamics. The classical approach of Lyapunov is employed here for the stability analysis of the dynamics. Computer simulations are undertaken to support the results of the analysis. Both temporal behaviors of the antibodies and their phase portraits are given to study their chaotic, limit cyclic and stable behavior. Results of stability analysis of the dynamics are applied in garbage cleaning problem by a mobile robot.
Data files as library materials: policies, procedures, and politics
Authors: Richard C. Roistacher
Venue: Proceedings of the May 4-7, 1981, national computer conference (1981)

Increasingly, organizational and public policies call for machine-readable data files to be treated as publicly available archived material. Data producers will be required to produce public-use files and documentation as well as the printed reports and on-line access they presently provide. An archivable machine-readable data file (MRDF) consists of three objects: The data file itself (either with or without a machine-readable dictionary), a set of documentation materials describing the file to the secondary user, and a set of bibliographic materials which lead the secondary user to the documentation and the file. Computing and data centers know how to produce data files. They can develop procedures for documenting files and producing bibliographic identification materials. By developing working relationships with technical libraries, data centers can relieve themselves of bibliographic, clerical, and financial burdens associated with the maintenance of a data archive. This paper outlines some procedures for the documentation and bibliographic identification of machine-readable data files. Some strategies for developing working relationships with technical libraries are suggested.
Building theories of economic process
Authors: Martin Shubik, Eric Smith
Venue: Complexity (2009)

Economics concerns phenomena on the interface between materials and processes in the physical world and strategic actions in cognitive, legal, and cultural realms. A very limited set of questions about the existence of rationally optimal allocations of goods has been asked within the mathematical framework of economic general equilibrium theory. Independently, diverse ad hoc models of particular economic systems have been built in operations research, macroeconomics, and most recently in the growing field of econophysics. Adequate attention has not been given, up to recently, to frameworks for integrative modeling of economic process, comparable in generality to the mathematics of equilibrium theory but capable of reproducing the dynamics and contingency structure of physical and strategic transformations, and the institutions that serve them. We sketch a possible form for such a general modeling framework, with particular attention to the control relation of the financial sector to the underlying productive economy. We emphasize the importance of the structure of physical processes to economic phenomena, particularly symmetries associated with scaling and the continuous or discrete passage of time. Finally, as an example of the kind of problem such a framework seems necessary to understand, we discuss the famous Fisher equation for the velocity of money and its implications for the use of money supply as a control over trade. &copy; 2008 Wiley Periodicals, Inc. Complexity, 2009
I would choose the other card: humanoid robot gives an advice
Authors: Astrid Weiss, Roland Buchner, Thomas Scherndl, Manfred Tscheligi
Venue: Proceedings of the 4th ACM/IEEE international conference on Human robot interaction (2009)

This article reports on a user study conducted to asses the credibility of a humanoid robot. The study set-up was based on the "Monty Hall Problem. Overall 13 people between the ages of 19 and 84 took part in the study (7 male and 6 female). The experiment was set up as a card-game where the participant had to guess which of the three cards shows a price. At one point of the experiment the robot advised the participant to change his/her mind and choose another card. During the user study the participants had to fill in a questionnaire on their level of certainty about their choice and the credibility of the robot. The results showed a significant correlation between the believability of the robot and the certainty in the decision made. Furthermore, the outcomes showed differences between participants who followed the robot's advise and participants who did not, regarding credibility, certainty of the decision made and the estimation whether the robot was helpful or not.
QACBAC: an owner-centric QoC-aware context-based access control model for pervasive environments
Authors: José Bringel Filho, Hervé Martin
Venue: Proceedings of the SIGSPATIAL ACM GIS 2008 International Workshop on Security and Privacy in GIS and LBS (2008)

In Pervasive Computing Environments (PCE), context information can have a strong impact on application adaptation; not only at application logic level but also security management level. Therefore, from an access control point of view, it is required that the access control models take into account context information such as location and time, in determining whether access should be allowed or not. As context information represents real-world situations, it is associated with certain quality indicators that can influence directly the access control decisions. In this paper, we propose an owner-centric QoC-Aware Context-Based Access Control model (QACBAC) that takes into account both context information and its QoC indicators to grant and to adapt access permissions to resources. We also introduce components and equations to measure the revelant QoC indicators to the access control services/users, that will be used in the QACBAC model. Moreover, a case study is presents showing the definition of access rules using the proposed access control model.
Process variation aware system-level task allocation using stochastic ordering of delay distributions
Authors: Love Singhal, Elaheh Bozorgzadeh
Venue: Proceedings of the 2008 IEEE/ACM International Conference on Computer-Aided Design (2008)

Design variability due to within-die and die-to-die variations has potential to significantly reduce the maximum operating frequency and effective performance of the system in future process technology generations. When multiple cores in MPSoC have different delay distributions, the problem of assigning tasks to the cores become challenging. This paper targets system level task allocation to stochastically minimize the total execution time of an application on MPSoC under process variation. In this work, we first introduce stochastically optimal task allocation problem. We provide formal theorems of the optimality of the solution in simple scenarios. We extend our theoretical work for generic cases in normal distribution. The proposed techniques enable efficient computation of task allocation using non-stochastic analysis. We apply these techniques in allocating tasks in the embedded system benchmark suites on MPSoC. We show that deterministic solution for system-level task allocation on widely used benchmark topologies and distributions (normal distribution) is almost as good as the best probabilistic solution.