ppxscal/embedding_network huggingface dataset:
Plato: a preservation planning tool
Authors: Hannes Kulovits, Christoph Becker, Michael Kraxner, Florian Motlik, Kevin Stadler, Andreas Rauber
Venue: Proceedings of the 8th ACM/IEEE-CS joint conference on Digital libraries (2008)

Creating a concrete plan for preserving an institution's collection of digital objects requires the evaluation of available solutions against clearly defined and measurable criteria. Preservation planning aids in this decision making process to find the best preservation strategy considering the institution's requirements, the planning context and possible actions applicable to the objects contained in the repository. Performed manually, this evaluation of possible solutions against requirements takes a good deal of time and effort. In this demonstration, we present Plato, an interactive software tool aimed at creating preservation plans.
On Performance Evaluation of Predictive Coding Using a Residue-Free Approach
Authors: Seishi Takamura, Yoshiyuki Yashima
Venue: Proceedings of the Data Compression Conference (2008)

In conventional predictive coding scheme, inter/intra prediction value is subtracted from the original pixel value before applying transform, quantization and entropy coding. As the subtraction discards the precious information of the prediction value, we suspect it would cause a coding loss. In this paper, we conduct a study on a coding method that does predict the pixel value but does not encode the residue. Experimental results show that the coding performance is improved (i.e., the Lagrangian cost is reduced) by 3-44 %.
Creating animation with personal photo collections and map for storytelling
Authors: Hideyuki Fujita, Masatoshi Arikawa
Venue: Proceedings of the 2007 Euro American conference on Telematics and information systems (2007)

The goal of our research is to support the sharing of stories with digital photographs. Some map sites are now collecting stories associated with peoples' relationships to places. Users are mapping collections of places including intangible emotional associations of places along with photographs, videos. Though this framework of mapping stories is important for accelerating individual creation and transmission of map content, it is not expressive enough to communicate stories narratively. For example, especially when the number of the mapped collections of places is large, it is not easy for viewers to read the map, and it is not easy for creators to express stories as series of events in the real world. That is because one narrative story in a form of a sequence of text narrations, a sequence of photographs, a movie, and an audio like podcasting, etc. is mapped to just one point. As a result, it's up to the viewers which point on the map to read, and in what order. The common framework is rather suitable for mapping and expressing fragments or snapshots of a whole story, and not suitable for expressing a whole story narratively by using a whole area of a map as the setting of the story. We therefore propose a new framework for mapping personal photo collections and constructing them as stories such as route guidances, sightseeing guidances, historical topics, fieldwork records, personal diaries, and so on. We named this framework as spatial slideshow. A spatial slideshow is a fusion of personal photo mapping and photo storytelling. Each story of a spatial slideshow is made of a sequence of mapped photographs, and presented as synchronized animations of a map and an enhanced photo slideshow. The main technical suggestion of this paper is a method for creating a three-dimensional animation of photo image which has a visual effect of moving from photo to photo. We have developed a personal photo album software and released it on the Web, which works as an editor and a browser of spatial slideshows. We assume the proposed framework has a significance of helping with grassroots development of spatial content driven by visual communications about places or events in the real world.
Perceptual watermarking using just noticeable difference model based on block classification
Authors: Ivan Damnjanovic, Ebroul Izquierdo
Venue: Proceedings of the 2nd international conference on Mobile multimedia communications (2006)

One of the main goals of watermarking is to optimize capacity while preserving high video fidelity. The perceptual adjustment of the watermark is mainly based on Watson Just Noticeable Difference (JND) model. Recently, it was proposed to improve Watson model using the classification blocks inherent to the encoder in a compressed stream. Although, the new model outperforms the previous one, especially in increasing the watermark power in textured blocks, it still underestimates JNDs at block's edges. This work presents a detailed comparison of these two models and proposes a new method that exploits the good characteristics of the two available models. In addition, experimental results on perceptibility are reported.
WebTasks: online programming exercises made easy
Authors: Guido Rößling, Sebastian Hartte
Venue: ACM SIGCSE Bulletin (2008)

Providing appropriate programming tasks for beginning students of CS is challenging - and is further complicated by the need to provide meaningful feedback to solutions. We present the WebTasks system, a web-based platform for submitting, testing, and discussing student solutions.
The Antikythera Mechanism: A Computer Science Perspective
Authors: Diomedis Spinellis
Venue: Computer (2008)

The Antikythera mechanism is an ancient astronomical calculator that contains a lunisolar calendar, predicts eclipses, and indicates the moon's position and phase. Its use of multiple dials and interlocking gears eerily foreshadows modern computing concepts from the fields of digital design, programming, and software engineering.
Medical Image Registration Based-on Points, Contour and Curves
Authors: Peng Wen
Venue: Proceedings of the 2008 International Conference on BioMedical Engineering and Informatics - Volume 02 (2008)

In this paper, a medical image registration method using points, contour and curves is proposed, which has the accuracy of registration based-on points and the robust of registration based-on lines (including contour and curves). The operator can exactly extract the features from the images with semi-automatic extraction method. The extracted curve-pairs are modeled by non-uniform cubic B-splines so that they have the same parameter space after modeled. Then the mechanism of non-uniform subdivision of curves ensures that the subdivided points can match the original curve as close as possible and fulfill the requirement of image registration. The deformation between images is described by thin plate splines, which is solved iteratively by continuously improving the regions of maximum difference on contour-pair or curve-pairs and adding constraint conditions. The experimental results show that our algorithm, which exploits the advantages of registration based-on points and that based-on lines, is a robust, fast and accurate medical image registration algorithm.
The PeerWise system of student contributed assessment questions
Authors: Paul Denny, Andrew Luxton-Reilly, John Hamer
Venue: Proceedings of the tenth conference on Australasian computing education - Volume 78 (2008)

Large test banks of multiple choice questions (MCQs) are popular resources for students wishing to quickly learn course material. However, they are time consuming to create and offer a somewhat limited learning experience. PeerWise offers an innovative approach that enhances standard teaching and learning practice by requiring students to participate in the construction and evaluation of MCQs. The system encourages the development of higher order cognitive skills and enhances student learning with virtually no additional cost to teaching staff. We have now used PeerWise in several large undergraduate programming courses, and report here on the design of the system and its user interface, identify several related systems, discuss our motivation and underlying teaching philosophy, and present some usage and performance results.
Evaluating Organization External Knowledge Acquisition Based on Scenario
Authors: Kaizhou Gao, Zhenqiang Bao, Xiangqing Li, Lei Guo, Hui Zhong
Venue: Proceedings of the First International Workshop on Knowledge Discovery and Data Mining (2008)

Knowledge can be acquired from organization inside and exterior. The knowledge inside organization is limited and the organization external knowledge is important to advance organization competition ability. Knowledge acquisition out of organization plays an extremely important role in organization knowledge management. This study proposed a knowledge acquisition evaluating method based on knowledge scenario. Scenario tree is defined and is used to describe the scenario of origination external knowledge. Scenario tree's dimensions and items are confirmed and their fuzzy weight is afforded. State interval of evaluating method is plot out. Evaluating matrix is proposed for computing the feasibility of organization external knowledge acquisition. The evaluating method is a recursion process among layers. A case is offered to demonstrate the availability of this approach in knowledge acquisition form organization exterior.
Speed control of DC motor based on neural net and fuzzy logic
Authors: Zahra Moravej
Venue: Proceedings of the 5th WSEAS/IASME International Conference on Systems Theory and Scientific Computation (2005)

This paper presented the speed control of DC motor based on neural net and fuzzy logic. To bypass the difficulties caused by system constraints and modelling uncertainties of the speed control of DC motor a neural network approach for on-line speed control of DC motor is designed. In comparison to several existing neural control schemes, the proposed direct neural controller is characterized by the simplicity of its structure and its practical applicability for real time implementation.
Fuzzy Belief-Based Supervision
Authors: Alexandre Vorobiev, Rudolph Seviora
Venue: Proceedings of the 2008 Third International Conference on Availability, Reliability and Security (2008)

This paper considers automatic, specification based detection of failures (supervision) of software systems. It is applicable to systems specified in a formalism based on communicating finite state machines. The technique enhances the belief-based approach to supervision to allow its continuation after occurrences of failures. The enhancement adopts the fuzzy set view of the membership of hypotheses in the behavior matched set. The paper first overviews the belief-based approach, presents the fuzzy enhancements and describes an experimental evaluation of the technique and summarizes its results.
Service-oriented architecture for mobile applications
Authors: Yuri Natchetoi, Viktor Kaufman, Albina Shapiro
Venue: Proceedings of the 1st international workshop on Software architectures and mobility (2008)

Mobile phones are becoming a new popular platform for business applications. The number of mobile users increases daily and so does the need for efficient mobile data access and management. However, a traditional approach to business application and database design is not suitable for mobile devices because of the limited memory and connection bandwidth. This paper presents a novel lightweight mobile SOA-based architecture for business applications running on J2ME enabled devices such as cell phones. The paper includes position statement based on our experience and describes a first prototype implementation of the architecture. Some important features of our design are: using the knowledge of business processes to minimize data transferred to and stored on the device; pro-active data loading; allowing applications to fully function in a disconnected mode. The above architecture results in a lightweight framework, which can be used in order to develop a wide spectrum of business-oriented mobile applications.
Synchronization of Transactions to Prevent Illegal Information Flow in a Role-Based Access Control Model
Authors: Tomoya Enokido, Makoto Takizawa
Venue: Proceedings of the 22nd International Conference on Advanced Information Networking and Applications (2008)

The role-based access control (RBAC) model is widely used to make information systems secure. Even if every access request is authorized in the roles, illegal information flow might occur as the well known confinement problem. In this paper, we discuss how to prevent illegal information flow to occur by synchronizing conflicting transactions in the RBAC model. We define types of information flow relations, legal (LIF), illegal (IIF), and possibly illegal (PIF) ones among a pair of role families.
A summer programming workshop for middle school girls
Authors: Helen H. Hu
Venue: Journal of Computing Sciences in Colleges (2008)

Westminster College runs a math, science, and computing summer camp for middle school girls called AWE+SUM. Core to the camp is a set of workshops that allow for creative hands-on experiments and exploration. One of the most popular workshops is called "Programming with Alice'" where we introduce the girls to programming concepts through Carnegie Mellon University's Alice software. This paper describes our experiences in running this workshop five times over the past three years.
Partial product reduction by using look-up tables for M×N multiplier
Authors: Higinio Mora-Mora, Jerónimo Mora-Pascual, José Luis Sánchez-Romero, Juan Manuel García-Chamizo
Venue: Integration, the VLSI Journal (2008)

In this paper we present a new technique for partial product reduction in multiplication operations. The method is based on the construction of counter elements by means of look-up tables. The organization of these counters into reduction trees takes advantage of the inherent benefits of the integration of the memories and provides an alternative to classic operation methods. We show several reduction schemes that illustrate the proposed technique and describe hybrid examples that combine stored logic with classic combinational counters in order to adapt them better to each scheme. Our approach outperforms other schemes used for comparison. In this sense, not only an independent technology model has been established, but also an FPGA approximation has been implemented to measure such factors in a real-life technology platform.
Output-Sensitive 3D Line Integral Convolution
Authors: Martin Falk, Daniel Weiskopf
Venue: IEEE Transactions on Visualization and Computer Graphics (2008)

We propose an output-sensitive visualization method for 3D line integral convolution (LIC) whose rendering speed is largely independent of the data set size and mostly governed by the complexity of the output on the image plane. Our approach of view-dependent visualization tightly links the LIC generation with the volume rendering of the LIC result in order to avoid the computation of unnecessary LIC points: early-ray termination and empty-space leaping techniques are used to skip the computation of the LIC integral in a lazy-evaluation approach. Different noise models are discussed, covering dense representations based on filtered white noise all the way to sparse representations similar to oriented LIC. A range of illumination models is applied to the LIC streamlines: different codimension-2 lighting models as well as a novel gradient-based illumination model that relies on precomputed gradients and does not require any direct calculation of gradients after the LIC integral is evaluated. Finally, we demonstrate that our visualization approach lends itself to a fast GPU implementation that supports both steady and unsteady flow. Applications to flow visualization in combination with feature extraction and focus-and-context visualization are described, a comparison to previous methods is provided, and a detailed performance analysis is included.
OLTP through the looking glass, and what we found there
Authors: Stavros Harizopoulos, Daniel J. Abadi, Samuel Madden, Michael Stonebraker
Venue: Proceedings of the 2008 ACM SIGMOD international conference on Management of data (2008)

Online Transaction Processing (OLTP) databases include a suite of features - disk-resident B-trees and heap files, locking-based concurrency control, support for multi-threading - that were optimized for computer technology of the late 1970's. Advances in modern processors, memories, and networks mean that today's computers are vastly different from those of 30 years ago, such that many OLTP databases will now fit in main memory, and most OLTP transactions can be processed in milliseconds or less. Yet database architecture has changed little. Based on this observation, we look at some interesting variants of conventional database systems that one might build that exploit recent hardware trends, and speculate on their performance through a detailed instruction-level breakdown of the major components involved in a transaction processing database system (Shore) running a subset of TPC-C. Rather than simply profiling Shore, we progressively modified it so that after every feature removal or optimization, we had a (faster) working system that fully ran our workload. Overall, we identify overheads and optimizations that explain a total difference of about a factor of 20x in raw performance. We also show that there is no single "high pole in the tent" in modern (memory resident) database systems, but that substantial time is spent in logging, latching, locking, B-tree, and buffer management operations.
From graph states to two-graph states
Authors: Constanza Riera, Stéphane Jacob, Matthew G. Parker
Venue: Designs, Codes and Cryptography (2008)

The name `graph state' is used to describe a certain class of pure quantum state which models a physical structure on which one can perform measurement-based quantum computing, and which has a natural graphical description. We present the two-graph state, this being a generalisation of the graph state and a two-graph representation of a stabilizer state. Mathematically, the two-graph state can be viewed as a simultaneous generalisation of a binary linear code and quadratic Boolean function. It describes precisely the coefficients of the pure quantum state vector resulting from the action of a member of the local Clifford group on a graph state, and comprises a graph which encodes the magnitude properties of the state, and a graph encoding its phase properties. This description facilitates a computationally efficient spectral analysis of the graph state with respect to operations from the local Clifford group on the state, as all operations can be realised graphically. By focusing on the so-called local transform group, which is a size 3 cyclic subgroup of the local Clifford group over one qubit, and over n qubits is of size 3 n , we can efficiently compute spectral properties of the graph state.
Online fuzzy logic crack detection of a cantilever beam
Authors: Harish Ch. Das, Dayal R. Parhi
Venue: International Journal of Knowledge-based and Intelligent Engineering Systems (2008)

Premature failure of beam structure is observed due to presence of crack. In the current analysis a fuzzy inference system has been developed for detection of crack location and crack depth of a cracked cantilever beam structure. The six input parameters to the fuzzy member ship functions are percentage deviation of first three natural frequencies and first three mode shapes of the cantilever beam. The two output parameters of the fuzzy inference system are relative crack depth and relative crack location. Strain energy release rate at the crack section of the beam has been used for calculating its local stiffnesses. Different boundary conditions for the cracked beam structure are outlined during theoretical analysis for deriving the vibration signatures (mode shapes and natural frequencies). These signatures are subsequently used for deriving the fuzzy rules. Several fuzzy rules are derived and the Fuzzy inference system has been designed accordingly. Experimental setup has been developed for verifying the robustness of the developed fuzzy inference system. The developed fuzzy inference system can predict the location and depth of the crack in a close proximity to the real results.
Inspection of EUVL mask blank defects and patterned masks using EUV photoemission electron microscopy
Authors: Jingquan Lin, J. Maul, N. Weber, Ch. Holfeld, M. Escher, M. Merkel, G. Schoenhense, U. Kleineberg
Venue: Microelectronic Engineering (2008)

We report on recent developments of an ''at-wavelength'' full-field imaging technique for inspection of multilayer mask blank defects and patterned mask samples for extreme ultraviolet lithography (EUVL) by EUV photoemission electron microscopy (EUV-PEEM). A bump-type line defect with a width of approximately 35nm that is buried beneath Mo/Si multilayer has been detected clearly, and first inspection results obtained from a patterned TaN absorber EUVL mask sample is reported. Different image contrast of a similar width of multilayer-covered substrate line defect and on top TaN absorber square has been observed in the EUV-PEEM images, and origin of the difference in their EUV-PEEM image contrast is discussed.
Environmental Data Exchange Network for Inland Water, 1st edition
Authors: Palle Haastrup, Jorgen Wrtz
Venue:  (2007)

Understanding and protecting our environment is a key component of environmental development, yet access to a wide range of high-quality information is currently based on very limited data due to lack of the exchange of data between source and recipient. This three part book that first discusses the importance of data exchange and describes why it is essential for gathering data in the environmental sciences. Part Two takes the results of the Environmental Data Exchange Network for Inland Water project (EDEN-IW), and addresses its objectives for ensuring that the needs of citizens and enterprises of the environmental sciences community are met. Finally, Part Three takes a look at the wide variety of data policies and addresses how environment administrators in Europe can enhance their efficiency, openness and accountability.* Discusses the importance of data exchange, as well as database integration and distribution of data with software agents* Provides the results, objectives, and focus of the EDEN-IW project for sharing knowledge * Addresses current data exchange policies and its future impact within the environmental fields