ppxscal/embedding_network huggingface dataset:
Content Integration with SAP NetWeaver Portal
Authors: Marty McCormick and Matt Stratford
Venue:  (2008)

This book is a must-read for SAP professionals who are looking to take their SAP NetWeaver Portal implementation to the next level. First, the authors introduce you to fundamental portal concepts and the challenges facing project teams today. Then, you'll explore the various architectural and developmental impacts of implementing SAP NetWeaver Portal content for several SAP applications, including Composite Applications and Business Packages. You'll familiarize yourself with the intricate details of Federated Portals and where it makes sense to use them in relation to portal content integration scenarios such as SAP NetWeaver Business Intelligence, Manager & Employee Self Service, SRM, and more. In addition, you'll benefit immediately from best practices for using Adobe Document Services, the System Landscape Directory, and SAP NetWeaver Development Infrastructure, and from the book's detailed examples, which show you how best to configure your SAP system to integrate content for multiple SAP products. Highlights include: Portal Content Overview Federated Portal Network Business Packages for Manager & Employee Self-Service Portal Content Integration with BI, SRM, CRM, ERP Managing a Content-Driven Architecture Organizing and Administering Portal Content Content Impacts to Portal Performance
Lazy scheduling of processing and transmission tasks in collaborative systems
Authors: Sasa Junuzovic, Prasun Dewan
Venue: Proceedings of the ACM 2009 international conference on Supporting group work (2009)

A collaborative system must perform both processing and transmission tasks. We present a policy for scheduling these tasks on a single core that is inspired by studies of human perception and the real-time systems field. It lazily delays the execution of the processing task if the delay cannot be noticed by humans. We use simulations and formal analysis to compare this policy with previous scheduling policies. We show that the policy trades-off an unnoticeable degradation in performance of some users for a much larger noticeable improvement in performance of others.
Scheduling a multi-chip package assembly line with reentrant processes and unrelated parallel machines
Authors: Sang-Jin Lee, Tae-Eog Lee
Venue: Proceedings of the 40th Conference on Winter Simulation (2008)

A multi-chip package(MCP) consists of several chip modules in a single package. We consider a scheduling problem for assembling MCPs. In order to assemble an MCP, a lot should repeat assembly process stages such as die attach and wire bonding as many as the number of chips to be assembled. The two key process stages have many parallel machines of various types. A machine processes different types of MCP lots with significant setup times. We therefore should limit the number of setups significantly while not sacrificing the on-time delivery performance much. We propose scheduling strategies of appropriately allocating the machine capacity to products and lots depending on the production progress of products and lots. We report experimental performances of the proposed methods.
Bi-cycle extendable through a given set in balanced bipartite graphs
Authors: Hao Li, Mei Lu
Venue: Discrete Applied Mathematics (2009)

Let G=(X,Y;E) be a balanced bipartite graph of order 2n. The path-cover numberpc(H) of a graph H is the minimum number of vertex-disjoint paths that use up all the vertices of H. S@?V(G) is called a balanced set of G if |S@?X|=|S@?Y|. In this paper, we will give some sufficient conditions for a balanced bipartite graph G satisfying that for every balanced set S, there is a bi-cycle of every length from |S|+2pc() up to 2n through S.
Inherent restrictions of the Hylleraas-Undheim-MacDonald higher roots, and minimization functionals at the excited states
Authors: N. C. Bacalis, Z. Xiong, D. Karaoulanis
Venue: Journal of Computational Methods in Sciences and Engineering (2008)

The excited states, being energy saddle points in the Hamiltonian eigenfunction Hilbert space, cannot be computed variationally by minimization of the energy. Thus, functionals (cf. arXiv:0801.3673) are presented, that have local minimum at the bound excited states of a non-degenerate Hamiltonian, allowing the computation at any desired accuracy, by using crude approximations of the lower lying states. They are useful for larger systems, because the higher roots of the standard secular equation (via the Hylleraas-Undheim and MacDonald theorem) have several restrictions (cf. arXiv:0809.3826), which render them of lower quality relative to the lowest root, if the latter is good enough. Preliminary test-results are presented for He $^{1}$S 1s2s.
Examining the success factors for mobile work in healthcare: A deductive study
Authors: Sutirtha Chatterjee, Suranjan Chakraborty, Saonee Sarker, Suprateek Sarker, Francis Y. Lau
Venue: Decision Support Systems (2009)

Mobile work is emerging as an area of major importance in healthcare. However, past literature on this topic remains largely anecdotal, fragmented, and atheoretical. In this paper, we address this gap and adapt the DeLone and McLean model of IS success to the context of mobile work in healthcare, and articulate specific propositions. We then deductively evaluate each proposition based on studies reporting mobile device use in the healthcare context. Through this rigorous evaluation process, we are able to deliver a revised theoretical model that presents a consolidated view of the literature in the area of mobile work in healthcare.
Efficient Retrieval and Spatial Querying of 2D Objects
Authors: Cyrus Shahabi, Maytham Safar
Venue: Proceedings of the IEEE International Conference on Multimedia Computing and Systems - Volume 2 (1999)

Besides traditional applications (e.g., CAD/CAM and Trademark registry), new multimedia applications such as structured video, animation, and MPEG-4 standard require the storage and management of well-defined objects. For efficient retrieval of 2D objects by shape, we propose three index structures on features that are extracted from the objects' minimum bounding circles (MBC). A major observation is that those features are unique per object and can be utilized to filter out non-similar candidates. To evaluate our techniques, we conducted a simulation study on a database of 2D objects. The results show the superiority of our techniques as compared to a naive indexing (at least 40% improvement in I/O cost). We also identify one of the indexing structures as the superior one, independent of the size of the database and the number of vertices of the objects.
Online effects of offline ads
Authors: Diane Lambert, Daryl Pregibon
Venue: Proceedings of the 2nd International Workshop on Data Mining and Audience Intelligence for Advertising (2008)

We propose a methodology for assessing how ad campaigns in offline media such as print, audio and TV affect online interest in the advertiser's brand. Online interest can be measured by daily counts of the number of search queries that contain brand related keywords, by the number of visitors to the advertiser's web pages, by the number of pageviews at the advertiser's websites, or by the total duration of visits to the advertiser's website. An increase in outcomes like these in designated market areas (DMAs) where the offline ad appeared suggests heightened interest in the advertised product, as long as there would have been no such increase if the ad had not appeared. We propose a regression analysis to estimate the incremental value of the ad campaign beyond the baseline interest that would have been seen if the campaign had not been shown. A small print ad campaign illustrates the method.
A dual-band direct-conversion RF front-end for WiMedia UWB receiver
Authors: Jouni Kaukovuori, Jussi Ryynänen, Mikko Kaltiokallio, Kari A. Halonen
Venue: Analog Integrated Circuits and Signal Processing (2009)

This paper describes a direct-conversion RF front-end designed for a dual-band WiMedia UWB receiver. The front-end operates in band group BG1 and BG3 frequencies. It includes multi-stage LNAs, down-conversion mixers, a polyphase filter for quadrature local oscillator (LO) signal generation, and LO buffers. The UWB receiver is targeted for a mobile handset, where several other radios can be simultaneously on. Therefore, special attention was paid on minimizing the interference from different wireless systems. The front-end achieves approximately 26-dB gain and 4.9---5.6-dB noise figure (NF) across three sub-bands of BG1. In BG3 mode it obtains 23---26-dB gain and 6.9---7.7-dB NF. The front-end consumes 48.1 and 42.7 mA from a 1.2-V supply voltage in BG1 and BG3 operation modes, respectively. The chip was implemented in a 0.13-μm CMOS.
Integrated Expression-Invariant Face Recognition with Constrained Optical Flow
Authors: Chao-Kuei Hsieh, Shang-Hong Lai, Yung-Chang Chen
Venue: Proceedings of the 3rd Pacific Rim Symposium on Advances in Image and Video Technology (2009)

Face recognition is one of the most intensively studied topics in computer vision and pattern recognition. A constrained optical flow algorithm, which combines the advantages of the unambiguous correspondence of feature point labeling and the flexible representation of optical flow computation, has been proposed in our pervious work for face recognition from expressional face images. In this paper, we propose an integrated face recognition system that is robust against facial expressions by combining information from the computed intra-person optical flow and the synthesized face image in a probabilistic framework. Our experimental results show that the proposed system improves the accuracy of face recognition from expressional face images.
A text pattern-matching tool based on Parsing Expression Grammars
Authors: Roberto x. Ierusalimschy
Venue: Software&mdash;Practice Experience (2009)

Current text pattern-matching tools are based on regular expressions. However, pure regular expressions have proven too weak a formalism for the task: many interesting patterns either are difficult to describe or cannot be described by regular expressions. Moreover, the inherent non-determinism of regular expressions does not fit the need to capture specific parts of a match. Motivated by these reasons, most scripting languages nowadays use pattern-matching tools that extend the original regular-expression formalism with a set of ad hoc features, such as greedy repetitions, lazy repetitions, possessive repetitions, &lsquo;longest-match rule,&rsquo; lookahead, etc. These ad hoc extensions bring their own set of problems, such as lack of a formal foundation and complex implementations. In this paper, we propose the use of Parsing Expression Grammars (PEGs) as a basis for pattern matching. Following this proposal, we present LPEG, a pattern-matching tool based on PEGs for the Lua scripting language. LPEG unifies the ease of use of pattern-matching tools with the full expressive power of PEGs. Because of this expressive power, it can avoid the myriad of ad hoc constructions present in several current pattern-matching tools. We also present a Parsing Machine that allows a small and efficient implementation of PEGs for pattern matching. Copyright &copy; 2008 John Wiley & Sons, Ltd.
Multi-Rate Variable-Quality VOP Shape Coder
Authors: W. M. Yio, A. H. Sadka, A. M. Kondoz
Venue: Proceedings of the 1999 IEEE International Conference on Multimedia Computing and Systems - Volume 02 (1999)

Many MPEG-4 shape coding algorithms have been formulated to provide the user with no specific control over the rate or quality of compression. These algorithms are either optimised for high quality or low bit rate. Therefore, a high quality optimised algorithm will be inefficient in a low bite rate application and vice versa. Hence, to achieve a highly efficient coding algorithm, a novel Multi-Rate Variable Quality (MRVQ) Video Object Plane (VOP) shape coder has been developed. The MRVQ VOP shape coder is an arbitrary shape coder that uses contour detection technique to encode the row or column where the shape contour lies. it provides a range of rates that the user can choose to suit his needs. Thus, fewer bits coding the shape of a VOP can be sent to a bandwidth-limited channel while sacrificing video quality. This extends the application of this technique to a wide area of visual communications.
A computer based wireless system for online acquisition, monitoring and digital processing of ECG waveforms
Authors: Dipali Bansal, Munna Khan, Ashok K. Salhan
Venue: Computers in Biology and Medicine (2009)

Various ECG instruments have addressed a wide variety of clinical and technical issues. However, there is still scope for improvement in them particularly in the area of their susceptibility to noise, lack of universal connectivity and off-line processing. A prototype system has been developed that caters to these limitations. It includes an analog system and a FM transceiver pair interfaced through sound port of the computer. The real time acquired data is viewed and filtered using MATLAB software. The ECG system described captures the bio-signal faithfully in real time wireless mode with minimum noise and has universal connectivity.
The knowledge pyramid: a critique of the DIKW hierarchy
Authors: Martin Frické
Venue: Journal of Information Science (2009)

The paper evaluates the data - information - knowledge - wisdom (DIKW) hierarchy. This hierarchy, also known as the `knowledge hierarchy', is part of the canon of information science and management. Arguments are offered that the hierarchy is unsound and methodologically undesirable. The paper identifies a central logical error that DIKW makes. The paper also identifies the dated and unsatisfactory philosophical positions of operationalism and inductivism as the philosophical backdrop to the hierarchy. The paper concludes with a sketch of some positive theories, of value to information science, on the nature of the components of the hierarchy: that data is anything recordable in a semantically and pragmatically sound way, that information is what is known in other literature as `weak knowledge', that knowledge also is `weak knowledge' and that wisdom is the possession and use, if required, of wide practical knowledge, by an agent who appreciates the fallible nature of that knowledge.
Recovery of upper body poses in static images based on joints detection
Authors: Zhilan Hu, Guijin Wang, Xinggang Lin, Hong Yan
Venue: Pattern Recognition Letters (2009)

Recovering human body poses from static images is challenging without prior knowledge of pose, appearance, background and clothing. In this paper, we propose a novel model-based upper poses recovery method via effective joints detection. In our research, three observables are firstly detected: face, skin, and torso. Then the joints are properly initialized according to the observables and some heuristic configuration constraints. Finally the sample-based Markov chain Monte Carlo (MCMC) method is employed to determine the final pose. The main contributions of this paper include a robust torso detector through maximizing a posterior estimation, effective joints initialization, and two continuous likelihood functions developed for effective pose inference. Experiments on 250 real world images show that our method can accurately recover upper body poses from images with a variety of individuals, poses, backgrounds and clothing.
Some topics for simulation optimization
Authors: Michael C. Fu, Chun-Hung Chen, Leyuan Shi
Venue: Proceedings of the 40th Conference on Winter Simulation (2008)

We give a tutorial introduction to simulation optimization. We begin by classifying the problem setting according to the decision variables and constraints, putting the setting in the simulation context, and then summarize the main approaches to simulation optimization. We then discuss three topics in more depth: optimal computing budget allocation, stochastic gradient estimation, and the nested partitions method. We conclude by briefly discussing some related research and currently available simulation optimization software.
CPS: A Cooperative-Probe Based Failure Detection Scheme for Application Layer Multicast
Authors: Jijun Cao, Zhigang Sun, Jinshu Su
Venue: Proceedings of the 2009 International Conference on Electronic Computer Technology (2009)

The failure of non-leaf nodes in Application Layer Multicast (ALM) tree partitions the multicast tree, which may significantly degrade the quality of multicast service. Accurate and timely failure recovery from node failures in ALM tree, which is based on the premise of efficient failure detection scheme, is critical to minimize the disruption of service. In fact, failure detection has hardly been studied in the context of ALM. Firstly, this paper analyzes the failure detection issues in ALM and then proposes a model which is based on the relationship between parent and child nodes for it. Secondly, the Cooperative-Probe based failure detection Scheme (CPS), in which the information about probe loss is shared among monitor nodes, is designed. Thirdly, the performance of CPS is analyzed. The Numerical results show that our proposed scheme can simultaneously reduce the detection time and the probability of false positive at the cost of little increased control overhead by comparing with the Basic-Probe based failure detection Scheme (BPS). Finally, some possible directions for the future work are discussed.
The search wall: tangible information searching for children in public libraries
Authors: Karen Detken, Carlos Martinez, Andreas Schrader
Venue: Proceedings of the 3rd International Conference on Tangible and Embedded Interaction (2009)

Children tend to rely on spatial and graphical cues rather than on digital applications to find media in libraries [7]. Although some Online Public Access Catalogs (OPACs) have been modified to appeal to young users, they are still hardly employed by children. Most of the enhancements in the physical space have been directed to signage systems and labels without much use of graphical and interactive elements. In this paper, a tangible interface is proposed as an alternative to support children's browsing activity in a public library. It draws from research in two fields: information interfaces for children, and tangible user interfaces. It is believed that by transferring functionalities of current information interfaces to the physical realm, the experience of young patrons in a public library might be enhanced in several aspects, including informational, social and recreational activities.
A New Soft Handover Mechanism Using DCHs in High-Speed Downlink Packet Access Networks
Authors: TaeHoon Lee, SungHoon Seo, JooSeok Song
Venue: Proceedings of the 2009 Second International Symposium on Intelligent Information Technology and Security Informatics (2009)

In 3GPP (Third Generation Partnership Project) Release5 (R5), HSDPA (High-Speed Downlink Packet Access) has been standardized to enhance the data rate of downlink packet transmission on top of WCDMA (Wideband CodeDivision Multiple Access) network. Even HSDPA supports up to 10 Mbps data rate through HS-DSCHs (High Speed-Downlink Shared Channels), an UE (User Equipment) suffers from significant handover latency since HSDPA standard does not supporting soft handover. Therefore, in this paper, we propose a new soft handover mechanism for HSDPA to reduce the handover latency by utilizing DCH (DedicatedChannel) instead of HS-DSCH. Simulation results show that the proposed soft handover mechanism reduces the packet IAT (Inter Arrival Time) less than 15 msec while HSDPA’s hard handover suffers from 190 msec packet IAT. It means that the proposed mechanism guarantees the minimum packet IAT requirement of the typical VoIP service in 20 msec. Furthermore, the proposed mechanism employees no service disruption for the data connection while an UE performs the soft handover procedure.
Management of HLA-based distributed legacy SLX-models
Authors: Michael Raab, Thomas Schulze, Steffen Strassburger
Venue: Proceedings of the 40th Conference on Winter Simulation (2008)

This article discusses management tasks that have to be supported for an efficient re-use of simulation models within HLA-based distributed simulation environments. After a review of the controversial discussions on the deployment of distributed simulation in the industrial domain, this article derives the need of support for such basic management tasks. Based on the practical experiences from an industrial project from the manufacturing domain, in which several legacy SLX models had to be integrated, we demonstrate how these management tasks have been supported and which tools were needed for this purpose. We furthermore discuss the results of the distributed simulation and show the necessity and the added benefit provided through its usage in industry.
Terra ludus, terra paidia, terra prefab: spatialization of play in videogames & virtual worlds
Authors: Georgia Leigh McGregor
Venue: Proceedings of the 5th Australasian Conference on Interactive Entertainment (2008)

Videogames and virtual worlds are a rich source of spatial interaction. These digitally coded environments have been specifically constructed to host particular forms of activity. They range from single player games to vast social networks. But how is play spatialized in videogames and virtual worlds? Roger Caillois introduced the terms paidia and ludus in his seminal work, Man, Play and Games, to describe an axis of play between structured rule-driven games and freeform imaginative play. This paper examines how paidia and ludus are spatialized in videogames and virtual worlds through formal goals and spatial rules. This paper articulates the spatialization of play as terra ludus and terra paidia, where spatial goals, resources and player agency channel play. Yet other games appear to offer freeform play but instead constrain the player to pursue implicit goals and restrict play to a selection from a series of prefabricated choices. Situated between the control of a terra ludus and the spatial freedom of a terra paidia, this paper describes an intermediate construction of space, a terraprefab. As a conceptual tool terra ludus, terra paidia and terra prefab allow us to understand and compare how videogames and virtual worlds spatially manipulate and control play.
Numerical Experiments for Reaction-Diffusion Equations Using Exponential Integrators
Authors: Gabriel Dimitriu, Răzvan Ştefănescu
Venue: Numerical Analysis and Its Applications: 4th International Conference, NAA 2008, Lozenetz, Bulgaria, June 16-20, 2008. Revised Selected Papers (2009)

In this study we focus on a comparative numerical approach of two reaction-diffusion models arising in biochemistry by using exponential integrators. The goal of exponential integrators is to treat exactly the linear part of the differential model and allow the remaining part of the integration to be integrated numerically using an explicit scheme. Numerical simulations including both the global error as a function of time step and error as a function of computational time are shown.
Photoshop Elements 7 for Windows: Visual QuickStart Guide
Authors: Jeff Carlson
Venue:  (2008)

Photoshop Elements is geared for business users, students, educators, and home users who want professional-looking images for their print and Web projects, but don't want or need the advanced power of Adobe Photoshop. With Photoshop Elements 7 for Windows: Visual QuickStart Guide, readers can start with a tour of the interface and image-editing basics, or they can look up specific tasks to learn just what they need to know. This task-based, visual reference guide uses step-by-step instructions and plenty of screenshots to show readers how to capture and import photos, reduce red eye, enhance color, work with layers, and much more. New features coverage includes: applying direct effects with the Adobe Smart Brush, softening surfaces and keeping edges crisp with a new filter, and finding photos easily with keywords. Both beginning and intermediate users will find everything they need here--in straightforward language and with readily accessible examples.