ppxscal/embedding_network huggingface dataset:
Advanced type-based schema mapping: a new approach in data integration
Authors: Farshad Fotouhi
Venue:  (2006)

The World Wide Web (WWW), one of the world's most important sources, holds a huge amount of available information. Many people have exploited the web as a virtual storage. In spite of being publicly and readily available, web data can hardly be properly queried or manipulated as done, for instance, in traditional databases, because most web data may be represented heterogeneously. There is a needs for systems to help people to cope with the heterogeneous information. An increasing demand for Web data leads to the question of how this information can be extracted and how semantically useful structures are mapped. Schema mapping in life sciences is complicated by several factors: heterogeneity and non-standard naming of scientific objects, and in many instances traditional mapping techniques fail completely. Therefore, advanced information extraction and schema, mapping techniques are required to process Web data automatically. An impressive and unprecedented schema, mapping technique has been designed in order to match seemingly unrelated terms using data type information and graph grammar mining technique.
Using content-derived names for package management in Tcl
Authors: Ethan L. Miller, Kennedy Akala, Jeffrey K. Hollingsworth
Venue: Proceedings of the 6th conference on Annual Tcl/Tk Workshop, 1998 - Volume 6 (1998)

Managing different versions of library routines has long been a problem, both for Tcl and for other languages that permit code reuse and modification (i.e., all computer languages that the authors are aware of). This problem is particularly difficult for Tcl because it allows libraries (in the form of packages) to be dynamically loaded as needed. While this feature is very convenient -- users need only keep a single copy of each library to use it in many programs -- it can lead to code compatibility and distribution problems. This paper presents a solution for this problem -- using content-derived names (CDNs) to name Tcl packages. Using this solution, a program can simultaneously use two different versions of a single package. In addition, the Tcl interpreter can easily find instances of a missing package over the network and download them, making them available to a running application. Because content-derived names are computed using a cryptographically strong hash over the text of a package, this process is safe from spoofing and other attacks based on providing the wrong library. Thus, a user may download missing packages from any server willing to provide them without fear of virus or trojan horse attacks.
Parameters-based speech packet recovery of adaptive CVSD for wireless PCN applications
Authors: C. H. Liu
Venue: Proceedings of the The 8th International Conference on Communication Systems - Volume 02 (2002)

Continuous variable slope delta (CVSD) modulation speech coder is a simple and robust speech coding algorithm with good speech coding quality at medium to high data rates. In this paper, the packet loss issue of adaptive CVSD is addressed for wireless personal communication network (PCN) applications. To solve the problem of packet loss, we propose a parameters-based packet recovery algorithm, which utilizes the parameters derived from 16 kb/s adaptive CVSD. A series of computer simulation is conducted and the results are compared with previously proposed algorithms. It is shown that our proposed packet recovery algorithm is robust in radio channel and is a suitable choice for wireless PCN applications. The ACM Portal is published by the Association for Computing Machinery. Copyright © 2010 ACM, Inc. Terms of Usage Privacy Policy Code of Ethics Contact Us Useful downloads: Adobe Acrobat QuickTime Windows Media Player Real Player
Business Services and Business Componentization: New Gaps between Business and IT
Authors: Jorge L. Sanz, Valeria Becker, Juan Cappi, Ankur Chandra, Joseph Kramer, Kelly Lyman, Nitin Nayak, Pablo Pesce, Ignacio Terrizzano, John Vergo
Venue: Proceedings of the IEEE International Conference on Service-Oriented Computing and Applications (2007)

"Services" is one of the most overloaded terms in the last 5 years in the IT industry. Progressively, the various co-existing meanings of this word have shifted from describing Service Oriented Architecture (SOA) and Web Services concepts to newer ideas such as Business Services and Service Oriented Business Application1 (SOBA). Consequently, use of the term "services" currently implies different connotations to different audiences, with all inferred meanings only vaguely understood by business researchers and decision-makers outside the IT industry. Something similar occurs with the words "component" and "componentization" which has both IT and business connotations. Business components have recently been proposed and used in modeling enterprises and industries. On the other hand, software and application components have also become very popular with the advent of Service Component Architecture standardization and related efforts. In this paper, we aim to provide a preliminary definition for Business Services and Business Components while also describing how they are different from their related IT siblings. Our goal is to identify the gap and shed some light to the SOA field.
A parallel MPEG-2 video encoder with look-ahead rate control
Authors: P. Tiwari
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 1996. on Conference Proceedings., 1996 IEEE International Conference - Volume 04 (1996)

We describe a parallel implementation of a MPEG-2 compliant, constant bit rate video encoder on a shared memory system. The emphasis is on techniques for obtaining compressed video with picture quality superior to that of commercially available real-time hardware encoders. We propose a novel scheme for bit allocation and rate control. The most remarkable aspect of this scheme is the analysis of future frames in order to determine bit allocation for the current frame. This analysis includes use of preliminary motion estimation, masking factor computation, and coding regions of future frames to model their coding complexity. To the best of our knowledge, this is the first instance of an MPEG encoder which integrates a detailed analysis of future frames in the bit-allocation/rate-control mechanism.
A standards-based architecture for Grid Service Management
Authors: Keith Rochford, John Walsh, Eamonn Kenny, Brian Coghlan
Venue: Proceedings of the Sixth International Symposium on Parallel and Distributed Computing (2007)

Managing the availability of services is an essential task in ensuring the availability of a grid infrastructure. This project aims to take the next step in the monitoring and management of grid computing systems by developing a standards-based distributed control plane for grid resources and middleware components. While many existing projects focus on the monitoring of grid resources and infrastructures, they make little or no provision for the active or pro-active management operations required to ensure the availability of the infrastructure. This solution employs web service technologies with the intention of producing an extensible body of work that might be applied to a range of grid projects and middlewares. With the emergence of meta-grids and the increasing importance of grid middleware interoperability, the acceptance and adoption of standard interfaces will become an important step in the development of future grid components.
VSIPL++ Acceleration Using Commodity Graphics Processors
Authors: Dan Campbell
Venue: Proceedings of the HPCMP Users Group Conference (2006)

The High Performance Embedded Computing Software Initiative (HPEC-SI) is developing a unified software framework for computation and communication for high performance signal processing tasks on parallel computers. The goal of the program is to address the high cost of software in Department of Defense (DoD) systems by improving the portability and productivity of signal processing application development, while simultaneously improving performance compared to current practices. The Vector, Signal, and Image Processing Library (VSIPL) is a portable Application Programming Interface (API) that is widely used for embedded DoD signal processing systems. One portion of the HPEC-SI effort includes the development of C++ extensions for the existing VSIPL standard, called VSIPL++. Commodity Graphics Processing Units (GPUs) are application-specific processors that implement a standardized three-dimensional graphics-rendering pipeline, and provide significant floating-point processing capacity at much lower cost, power consumption, and physical space compared to general-purpose processors. Recent changes in GPUs have increased programmability and flexibility in portions of the rendering pipeline, allowing non-graphics applications to exploit their computational capacity. Restrictions on the programming model, lack of appropriate tools, unusual performance behavior, and other factors make exploiting GPUs a costly, difficult, and time-consuming process for application developers. The embedded systems that VSIPL and VSIPL++ are commonly used on share several important characteristics with GPUs, making VSIPL++ well suited to abstract and exploit GPUs. This paper describes GPUVSIPL++, an implementation of portions of the VSIPL++ standard that exploits a GPU to accelerate computation beyond what is possible on a development workstation.
On the design and worst-case analysis of certain interactive and approximation algorithms
Authors: Ronald L. Graham
Venue:  (2007)

With the speed of current technological changes, computation models are evolving to become more interactive and dynamic. These computation models often differ from traditional ones in that not every piece of the information needed for decision making is available a priori. Efficient algorithm design to solve these problems poses new challenges.In this work we present and study some interactive and dynamic computations and design efficient algorithmic schemes to solve them. Our approach for performance evaluation falls within the framework of worst-case analysis. The worst-case scenarios are analyzed through the incorporation of imaginary adversaries or adversarial input sequences. Worst-case analysis provides safe performance guarantees even when we have little or no prior knowledge about the input sequences. Another natural yet powerful tool we utilize is an auxiliary graph which evolves as the computation progresses. It helps us to visualize the computation step by step, and more importantly, offers us powerful mathematical tools from the well-developed area of graph theory.We first address a particular computation problem of interactive nature, best known as the Majority/Plurality game. This interactive game has appeared in several different contexts since the 1980s such as system diagnosis and group testing. We design and analyze optimal strategies to minimize the amount of communication needed in different settings against an imaginary adversary. We also consider error-tolerance features to make our strategies robust even in the presence of communication errors.We then introduce a new variant of the classical bin packing problem that allows arbitrary splitting of the items with the restriction on the number of different types in each bin. This problem is specifically motivated by a practical problem of allocating memories to parallel processors in high-speed routers. It is also natural to other similar resource allocation applications. Even the simplest case of this problem can be shown to be NP-hard. We design efficient approximation algorithms in the offline, online, and dynamic settings. We also use an interesting &epsiv;-improvement technique to show improved approximation ratios.
Benefits of alternate XML serialization formats in scientific computing
Authors: Jaakko Kangasharju, Sasu Tarkoma
Venue: Proceedings of the 2007 workshop on Service-oriented computing performance: aspects, issues, and approaches (2007)

XML is a widely-used technology for interoperable data representation, and its scope of usage has widened even more in recent years. However, this expansion of XML's application areas has identified limitations and inefficiencies that seem inherent in XML due to its verbosity and redundancy. Because of this, various industry groups and standardization organizations have undertaken to define alternate representations of XML data to better address their needs while still retaining compatibility with XML. This paper provides an overview of the arguments in favor of a binary format in scientific computing, of work done in this area by the W3C, and some benchmarks comparing XML with various processing techniques available with binary formats.
The B2C Adoption in Retail Firms in India
Authors: Akshay Anand, Snigdha Kulshreshtha
Venue: Proceedings of the Second International Conference on Systems (2007)

B2C platform in retail firms has been readily adopted in more developed countries, but is still lagging in developing nations. Information technology can reinforce the competitive advantage for retail companies. One of the main streams of the IS (Information System) research is the explanation and prediction of information technology adoption in organizations. This paper examines various factors that affect B2C adoption in the retail companies. In order to find the factor in a logical and systematic way, an extension of the Tornatsky and Fleischer's TOE (Technology-Organization-Environment) framework is used by including another aspect: consumer. So the framework adopted for studying the B2C adoption is TOEC framework. All the factors that will greatly influence the B2C adoption in retail companies were listed under TOEC framework and a leading Indian retail company's B2C adoption process was studied as a case. Some special factors are given out that may be helpful for B2C adoption.
Intrusion Detection and Internet Services Failure Reporting System
Authors: Przemyslaw Nowak, Bartosz Sakowicz, George Anders, Andrzej Napieralski
Venue: Proceedings of the 2nd International Conference on Dependability of Computer Systems (2007)

In this article the Intrusion Detection and Internet Services Failure Reporting System created to detect unwonted manipulations to computer systems, mainly through the Internet and checking all active services in secure network is described. The application was written using Java Enterprise Edition (JEE) technology and jpcap library,so the application can work on many different operating systems. Intrusion Detection System is based on signatures method detection.
Gaining Insight into Executable Models during Runtime: Architecture and Mappings
Authors: Philipp Graf, Klaus D. Muller-Glaser
Venue: IEEE Distributed Systems Online (2007)

Model-based development using different domain-specific tools and graphical notations is becoming increasingly important in the design of embedded electronic systems because it allows fast, concept-oriented prototyping from model to code. An extension to a model-based development approach provides an architecture for debugging models that execute on target systems or in dedicated rapid-prototyping environments. An example of debugging state-charts shows the approach's feasibility.
How can technology support musical creativity for people with dementia?
Authors: Philippa Riley
Venue: Proceedings of the 6th ACM SIGCHI conference on Creativity cognition (2007)

Dementia continues to be a growing problem, affecting the person with dementia and their family members. The main symptoms of the disease are memory impairment, cognitive dysfunction and executive functioning problems. Research has established provision of activities can improve quality of life for people with dementia. This research concentrates on musical creativity, investigating how technology could support creative music making for people with dementia. People with dementia experience difficulties with communication, short-term memory and learning new skills. These issues make it difficult to find activities that people with dementia can participate in. However, music is one activity enjoyed by people with mild dementia, and those in the advanced stages of dementia. Research has shown that people with dementia can be creative. However, when it comes to music, the researcher has found a lack of resources available for them to make their own music. Traditional musical instruments are too difficult to play, so simple percussion instruments are used for rhythm making. The aims of this research are to develop a novel tool to support creative music making for people with dementia, and from that, provide key insights into musical creativity in persons with dementia. It is important that the music created is pleasant for both player and listener. The researcher experimented with chord playing, as chords played in sequence will always sound harmonious. By using specific chord types, i.e. major or minor, passages of chords can also be used to portray emotions. Researchers have discussed how music can communicate emotion, and as people with dementia are prone to difficulties with communication, the tool could also be useful for self-expression. Small-scale prototypes have been developed to demonstrate how the tool works. An intuitive interface prompts users to select an emotion before beginning play. Users will interact with the tool using a touch screen, as this has already been shown to be usable by people with dementia. On touching the screen, chords will play portraying the emotion selected. Users control pitch by moving higher or lower on the screen, and dynamics, by moving left and right across the screen. Visual feedback is also provided, using appropriate colors and shapes to match the emotion selected. Basic melodies can be created by dragging a finger up and down the screen, with more complex pieces created by touching different parts of the screen. Investigations will establish if the tool can be used for music creation, whether it provides enjoyment and if it can actively engage people with dementia. It will also be interesting to establish if people with dementia can use it for self-expression.
Programmable Hardware and the New Analog Capacity
Authors: T. Giuma, A. Ebenal
Venue: Proceedings of the Second International Conference on Systems (2007)

This paper will explore the evolutionary development of programmable devices and the emergent capacity to configure programmable analog devices. The architectures, research, current trends and a simulated example will be included in this investigation of programmable hardware. In the near future there will be one device that will be an all around programmable piece of hardware that will allow the user to implement analog as well as digital signal processing. The progressive enhancements of programmable devices that are making it possible to produce Field Programmable Analog Arrays (FPAA) and Field Programmable Mixed Signal Arrays (FPMA) are also discussed.
Perspective on printing
Authors: Ben Woodard, Nick Moffitt
Venue: Proceedings of the 4th annual Linux Showcase & Conference - Volume 4 (2000)

Printing is one aspect where Linux has progressed very slowly. Most free operating systems continue to use Berkeley LPR, and replacement printing systems have been slow to catch on. This paper describes how VA Linux Systems and HP's LaserJet division teamed up to add PPD functionality to lpr.
Wiener filter methods for baseline correction of magnetic resonance spectra
Authors: T. Boskamp
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 06 (2000)

The problem of correcting the baseline distortion of signals measured in magnetic resonance spectroscopy is investigated in the context of Wiener filter theory. Based on the estimation of model parameters describing the spectrum, a method is proposed that estimates the correlation operators of the net signal and the baseline distortion. These operators are used to construct a Wiener filter for the measured spectrum. Results of numerical simulations that compare the proposed method with other methods are given.
A System for the Determination of Image Density and Morphometry Developed for the Analysis of Malignant Nuclei
Authors: Sadao Isotani, Nilson Brasil Fo, Olimpio M. Capeli, Yuriko Ito Sakai, Antonio R. P. L. de Albuquerque
Venue: Proceedings of the Twentieth IEEE International Symposium on Computer-Based Medical Systems (2007)

This paper describes SPCIM, a system developed for the analysis of image density and morphometry of malignant nuclei. The SPCIM has been applied in analysis of images from needle aspirations specimens, cervical intraepithelial neoplasia samples, smear of normal reproductive women and uterine-cervix smears slides of HIV-positive patients. Also, the SPCIM was applied with success in the Brazilian Papanicolaou quality control system. The main modules of the program SPCIM are "Image Acquisition", "Image Saving", "Nuclei Demarcation" and "Marked Nuclei Analysis". In this paper we emphasizes the algorithms of the module "Nuclei Demarcation", for dark regions, segmentation, area threshold, counting of regions, borderline of regions and validation of regions, that were adapted to optimize the functionality of SPCIM.
Design of lossless LOT and its performance evaluation
Authors: K. Komatsu
Venue: Proceedings of the Acoustics, Speech, and Signal Processing, 2000. on IEEE International Conference - Volume 04 (2000)

In lossless transforms, integer input signals are transformed into integer transform coefficients and losslessly reconstructed. Lossless versions of the discrete cosine transform and wavelet transforms have been proposed. In this paper, we design a lossless version of the lapped orthogonal transform (LOT). The fast LOT is decomposed into block transforms. Then the lossless LOT is obtained by replacing them by the corresponding lossless ladder networks. We investigate two cases of 31-band and 64-band decomposition in which the 4-point and 8-point lossless LOT are used, respectively. We compare them with the conventional lossless methods in terms of lossless and lossy compression efficiency. The proposed methods are found to have good performance.