ppxscal/embedding_network huggingface dataset:
Medium-Long Term Prediction of Monthly Discharge at Yangtze Three Gorges Based on Neural Network
Authors: Hu Guohua, Xu Dongmei, Sun Shuqing
Venue: Proceedings of the 2009 International Forum on Information Technology and Applications - Volume 03 (2009)

In this paper, a neural network medium-long term hydrological forecasting model coupling LM algorithm with self-adaptive algorithm is established in combining statistical analysis with fuzzy analysis, choosing predictors such as rainfall and atmospheric circulation in previous stage that affect the monthly discharge at the Yichang Station of the Yangtze River, comparing the advantage and disadvantage of several modified BP algorithms, discussing several problems in the modeling process. The results of calculation show that the model is highly effective.
The Game Analysis of Price Competition on Different Rationality
Authors: Bin Wang, Zhimin Li, Silian Sui, Yuhua Qin
Venue: Proceedings of the 2009 Eigth IEEE/ACIS International Conference on Computer and Information Science (2009)

Classical model of price competition is based on the supposition ofcomplete rationality, but it's impossible for this supposition to exist in reality. In the paper, on the supposition of bounded rationality, we construct two Bertrand price competition models :one is based on competitors with complete rationality and the ones with bounded rationality, the other is on two competitors with bounded rationality. We analyze Nash equilibrium and its stability. Through numerical simulation, we show that, in duopoly price competition, two competitors can attain stable Nash equibrium,only to satisfy certain conditions (in stable region), andbeyond the stable region, dynamic system has sensitive dependence to the initial value. But, due to limitation of its rationality,the game players with bounded rationality often fall into the disruption of market ( chaotic status) with their eagerness for quick success and instant benefits , and then affect their own long-term strategic interests.
Intersecting multilingual data for faster and better statistical translations
Authors: Yu Chen, Martin Kay, Andreas Eisele
Venue: Proceedings of Human Language Technologies: The 2009 Annual Conference of the North American Chapter of the Association for Computational Linguistics (2009)

In current phrase-based SMT systems, more training data is generally better than less. However, a larger data set eventually introduces a larger model that enlarges the search space for the translation problem, and consequently requires more time and more resources to translate. We argue redundant information in a SMT system may not only delay the computations but also affect the quality of the outputs. This paper proposes an approach to reduce the model size by filtering out the less probable entries based on compatible data in an intermediate language, a novel use of triangulation, without sacrificing the translation quality. Comprehensive experiments were conducted on standard data sets. We achieved significant quality improvements (up to 2.3 Bleu points) while translating with reduced models. In addition, we demonstrate a straightforward combination method for more progressive filtering. The reduction of the model size can be up to 94% with the translation quality being preserved.
A hybrid Markov/semi-Markov conditional random field for sequence segmentation
Authors: Galen Andrew
Venue: Proceedings of the 2006 Conference on Empirical Methods in Natural Language Processing (2006)

Markov order-1 conditional random fields (CRFs) and semi-Markov CRFs are two popular models for sequence segmentation and labeling. Both models have advantages in terms of the type of features they most naturally represent. We propose a hybrid model that is capable of representing both types of features, and describe efficient algorithms for its training and inference. We demonstrate that our hybrid model achieves error reductions of 18% and 25% over a standard order-1 CRF and a semi-Markov CRF (resp.) on the task of Chinese word segmentation. We also propose the use of a powerful feature for the semi-Markov CRF: the log conditional odds that a given token sequence constitutes a chunk according to a generative model, which reduces error by an additional 13%. Our best system achieves 96.8% F-measure, the highest reported score on this test set.
Estimation of human red blood cells size using light scattering images
Authors: G. Apostolopoulos, S. Tsinopoulos, E. Dermatas
Venue: Journal of Computational Methods in Sciences and Engineering (2009)

In this paper, a novel method for the estimation of the human Red Blood Cell (RBC) size using light scattering images is presented. The information retrieval process includes, image normalization, a two-dimensional Discrete Cosine Transformation (DCT2) or Wavelet transformation (DWT2), and a Radial Basis Neural Network (RBF-NN) estimates the RBC geometrical properties. The proposed method is evaluated in both regression and identification tasks when three important geometrical properties of the human RBC are estimated using a database of 1575 simulated images generated with the boundary element method. The experimental setup consists of a light beam at 632.8 nm and moving RBCs in a thin glass and additive noise distortion is simulated using white Gaussian noise from 60 to 0 dB SNR. The regression and identification accuracy of actual RBC sizes is estimated using three feature sets, giving a mean error rate less than 1 percent of the actual RBC size, in case of noisy image data at 10 dB SNR or better, and more than 97 percent mean identification rate.
Social Network Analysis Supporting Collaborative Knowledge Building
Authors: Weiqin Chen
Venue: Proceedings of the 2009 International Workshop on Social Informatics (2009)

Analyzing collaboration data can help revealing important aspects of the collaboration. The results can be used to support both teachers’ intervention and students’ self regulation. This paper presents a social network analysis method to support collaborative learning, using a collaborative knowledge building system as an example. The details of the network analysis process and its integration with a knowledge building system are described.
Method of Kronecker product to advanced type Riccati differential systems with strongly coupled quadratic terms
Authors: D. Bahuguna, A. Ujlayan, Dwijendra N. Pandey
Venue: Computers Mathematics with Applications (2009)

In this paper we consider a Riccati differential equation system of advanced type, strongly coupled in its quadratic terms. We reformulate it to a vector equation using the Kronecker product so that the successive approximation method is applicable. Finally, we study an iterative scheme for the problem and obtain the error bounds for the given scheme.
An End-to-End Proactive TCP Based on Available Bandwidth Estimation with Congestion Level Index
Authors: Sangtae Bae, Doohyung Lee, Chihoon Lee, Jinwook Chung, Jahwan Koo, Suman Banerjee
Venue: Proceedings of the Symposium on Human Interface 2009 on Human Interface and the Management of Information. Information and Interaction. Part II: Held as part of HCI International 2009 (2009)

Transmission control protocol (TCP) is one of the core communica-tion protocols of the Internet protocol suite. For this reason, significant enhancements on TCP have been made in both wired and wireless networks. In this paper, we propose an end-to-end proactive TCP based on available bandwidth estimation with congestion level index (CLI), called CLI-based TCP. From the previous TCP schemes, we have found that the TCP sender does not know how much the network is congested because network congestion is represented by only two status, congestion exists or not. Therefore, we define the concept of CLI, outline the procedure of the CLI algorithm, and describe how to realize the CLI-based TCP. In addition, we have shown that CLI-based TCP can handle network congestion more minutely and improve overall TCP performance. Simulation results show that under 90% traffic load, the CLI-based TCP outperforms TCP New Jersey by 49.8% improvement in goodput.
Unifying Memory and Database Transactions
Authors: Ricardo J. Dias, João M. Lourenço
Venue: Proceedings of the 15th International Euro-Par Conference on Parallel Processing (2009)

Software Transactional Memory is a concurrency control technique gaining increasing popularity, as it provides high-level concurrency control constructs and eases the development of highly multi-threaded applications. But this easiness comes at the expense of restricting the operations that can be executed within a memory transaction, and operations such as terminal and file I/O are either not allowed or incur in serious performance penalties. Database I/O is another example of operations that usually are not allowed within a memory transaction. This paper proposes to combine memory and database transactions in a single unified model, benefiting from the ACID properties of the database transactions and from the speed of main memory data processing. The new unified model covers, without differentiating, both memory and database operations. Thus, the users are allowed to freely intertwine memory and database accesses within the same transaction, knowing that the memory and database contents will always remain consistent and that the transaction will atomically abort or commit the operations in both memory and database. This approach allows to increase the granularity of the in-memory atomic actions and hence, simplifies the reasoning about them.
Bonfire: a nomadic system for hybrid laptop-tabletop interaction
Authors: Shaun K. Kane, Daniel Avrahami, Jacob O. Wobbrock, Beverly Harrison, Adam D. Rea, Matthai Philipose, Anthony LaMarca
Venue: Proceedings of the 22nd annual ACM symposium on User interface software and technology (2009)

We present Bonfire, a self-contained mobile computing system that uses two laptop-mounted laser micro-projectors to project an interactive display space to either side of a laptop keyboard. Coupled with each micro-projector is a camera to enable hand gesture tracking, object recognition, and information transfer within the projected space. Thus, Bonfire is neither a pure laptop system nor a pure tabletop system, but an integration of the two into one new nomadic computing platform. This integration (1) enables observing the periphery and responding appropriately, e.g., to the casual placement of objects within its field of view, (2) enables integration between physical and digital objects via computer vision, (3) provides a horizontal surface in tandem with the usual vertical laptop display, allowing direct pointing and gestures, and (4) enlarges the input/output space to enrich existing applications. We describe Bonfire's architecture, and offer scenarios that highlight Bonfire's advantages. We also include lessons learned and insights for further development and use.
Effect of post annealing on the resistive switching of TiO2 thin film
Authors: Wan-Gee Kim, Shi-Woo Rhee
Venue: Microelectronic Engineering (2009)

The effect of annealing on the resistive switching of 35-nm-thick TiO"2 thin film deposited with magnetron sputtering system was studied. Pt and Ag were used as a top electrode (TE), and Pt was used as a bottom electrode (BE). For Pt/as-deposited TiO"2/Pt structure, both unipolar (URS) and bipolar resistive switching (BRS) were observed depending on the current compliance level. For Pt/400^oC annealed TiO"2/Pt structure, only BRS was observed regardless of the current compliance level. The increase in the work function of the TiO"2 film after annealing lowers the potential barrier height and changes the electron transfer process which was also confirmed from Ag/as-deposited TiO"2/Pt structure. Above 600^oC, the film becomes leaky with the increase in grain size and roughness and the resistive switching behavior was not observed.
Iso-Level CAFT: How to Tackle the Combination of Communication Overhead Reduction and Fault Tolerance Scheduling
Authors: Mourad Hakem
Venue: Proceedings of the 8th International Symposium on Advanced Parallel Processing Technologies (2009)

To schedule precedence task graphs in a more realistic framework, we introduce an efficient fault tolerant scheduling algorithm that is both contention-aware and capable of supporting ¿ arbitrary fail-silent (fail-stop) processor failures. The design of the proposed algorithm which we call Iso-Level CAFT, is motivated by (i) the search for a better load-balance and (ii) the generation of fewer communications. These goals are achieved by scheduling a chunk of ready tasks simultaneously, which enables for a global view of the potential communications. Our goal is to minimize the total execution time, or latency, while tolerating an arbitrary number of processor failures. Our approach is based on an active replication scheme to mask failures, so that there is no need for detecting and handling such failures. Major achievements include a low complexity, and a drastic reduction of the number of additional communications induced by the replication mechanism. The experimental results fully demonstrate the usefulness of Iso-Level CAFT. 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
The Comprehensive Function Evaluation of Lake Honghu Using Analytic Hierarchy Process
Authors: Xuelei Wang, Yan Li, Rui Xiao
Venue: Proceedings of the 2009 International Conference on Environmental Science and Information Application Technology - Volume 01 (2009)

A lake comprehensive function assessment index system was set up and the weight of each index was calculated by the analytic hierarchy process method, and also the grade of lake function comprehensive index was regulated. Based on the lake function comprehensive index, it can be decided that the lake comprehensive function is good or bad. Honghu lake function was assessed by this method and its result shows the grade of Honghu lake comprehensive function is “bigger”.
Short Chosen-Prefix Collisions for MD5 and the Creation of a Rogue CA Certificate
Authors: Marc Stevens, Alexander Sotirov, Jacob Appelbaum, Arjen Lenstra, David Molnar, Dag Arne Osvik, Benne Weger
Venue: Proceedings of the 29th Annual International Cryptology Conference on Advances in Cryptology (2009)

We present a refined chosen-prefix collision construction for MD5 that allowed creation of a rogue Certification Authority (CA) certificate, based on a collision with a regular end-user website certificate provided by a commercial CA. Compared to the previous construction from Eurocrypt 2007, this paper describes a more flexible family of differential paths and a new variable birthdaying search space. Combined with a time-memory trade-off, these improvements lead to just three pairs of near-collision blocks to generate the collision, enabling construction of RSA moduli that are sufficiently short to be accepted by current CAs. The entire construction is fast enough to allow for adequate prediction of certificate serial number and validity period: it can be made to require about 249 MD5 compression function calls. Finally, we improve the complexity of identical-prefix collisions for MD5 to about 216 MD5 compression function calls and use it to derive a practical single-block chosen-prefix collision construction of which an example is given.
Black and White in Photoshop CS4 and Lightroom: A complete integrated workflow solution for creating stunning monochromatic images in Photoshop CS4, Photoshop Lightroom, and beyond
Authors: Leslie Alsheimer, Bryan O'Neil Hughes
Venue:  (2009)

Black and white photography has come a long way in the digital world. This comprehensive reference will help you maximize your workflow with coverage of all of the relevant new features of Photoshop CS4 and Lightroom 2, including every stage of the black and white process from capture to printing. Along the way, you'll find in-depth explanations of key topics such as color management, optimizing your workspace, softproofing and calibration (both onscreen and for output), evaluating histograms, non-destructive editing, and much more. New features in this edition include:*In-depth coverage of workflow using the Bridge and Adobe Camera RAW components of CS4*New recipes and tips for advanced black and white conversion *Coverage of Lightroom and Photoshop integration features*An overview of scanners and scanning your black and white film*Advice on exposure essentials and how to apply the Zone System to your digital shooting *A brand new chapter on black and white and creative image editing in LightroomBreathtaking color and black and white photographs, including Leslie Alsheimer's image which won the coveted Vincent Versace award at Photoshop World in 2008, will inspire you to expand your own creativity to limitless possibilities. This is the essential resource for any photographer shooting black and white in the digital age. *The only book available that takes a head-on approach to creating stunning black and white shots with a workflow using the industry-standard software packages, Photoshop and Lightroom*Packed with stunning, inspirational images that place the highly practical informative content in a visual context*Written by Photoshop product manager and Lightroom evangelist Bryan O'Neil Hughes, and NAPP guru award winner Leslie Alsheimer
A new proof of the Gasca-Maeztu conjecture for n=4
Authors: Hakop Hakopian, Kurt Jetter, Georg Zimmermann
Venue: Journal of Approximation Theory (2009)

In the Chung-Yao construction of poised nodes for bivariate polynomial interpolation [K.C. Chung, T.H. Yao, On lattices admitting unique Lagrange interpolations, SIAM J. Numer. Anal. 14 (1977) 735-743], the interpolation nodes are intersection points of some lines. The Berzolari-Radon construction [L. Berzolari, Sulla determinazione di una curva o di una superficie algebrica e su alcune questioni di postulazione, Lomb. Ist. Rend. 47 (2) (1914) 556-564; J. Radon, Zur mechanischen Kubatur, Monatsh. Math. 52 (1948) 286-300] seems to be more general, since in this case the nodes of interpolation lie (almost) arbitrarily on some lines. In 1982 Gasca and Maeztu conjectured that every poised set allowing the Chung-Yao construction is of Berzolari-Radon type. So far, this conjecture has been confirmed only for polynomial spaces of small total degree n@?4, the result being evident for n@?2 and not hard to see for n=3. For the case n=4 two proofs are known: one of J.R. Busch [J.R. Busch, A note on Lagrange interpolation in R^2, Rev. Un. Mat. Argentina 36 (1990) 33-38], and another of J.M. Carnicer and M. Gasca [J.M. Carnicer, M. Gasca, A conjecture on multivariate polynomial interpolation, Rev. R. Acad. Cienc. Exactas Fis. Nat. (Esp.) Ser. A Mat. 95 (2001) 145-153]. Here we present a third proof which seems to be more geometric in nature and perhaps easier. We also present some results for the case of n=5 and for general n which might be useful for later consideration of the problem.
Time-Adaptive Vertical Handoff Triggering Methods for Heterogeneous Systems
Authors: Qingyang Song, Zhongfeng Wen, Xingwei Wang, Lei Guo, Ruiyun Yu
Venue: Proceedings of the 8th International Symposium on Advanced Parallel Processing Technologies (2009)

Vertical handoff decision is an important process in heterogeneous systems. In order to find an appropriate time to trigger a handoff, deciding a stability period before performing the handoff has been studied formerly. In this paper, we introduce the definition of the residence time of a handoff zone (HZ) into the stability period decision method. Then two algorithms, Stability Period Decision Scheme with HZ Residence Time (SPDRT) and Stability Period Decision Scheme Based on Fuzzy Logic (SPDFL), are proposed to adjust the stability period dynamically. Moreover, we apply the two schemes to solve the handoff call queuing problem. Simulation results show that the proposed methods can decrease handoff call dropping rate effectively and adjust the stability period intelligently and sensibly.
Determining Cockpit Dimensions and Associative Dimensions between Components in Cockpit of Ultralight Plane for Taiwanese
Authors: Dengchuan Cai, Lan-Ling Huang, Tesheng Liu, Manlai You
Venue: Proceedings of the 2nd International Conference on Digital Human Modeling: Held as Part of HCI International 2009 (2009)

The cockpit dimensions of ultralight plane were determined by suing body and subjective dimensions of Taiwanese. The side view of the cockpit was a trapezoid. The length of the top and bottom sides were 707 and 1773mm, its height was 1280mm. The front view of the cockpit was a rectangle a width of 856mm. The length from SRP to the back and bottom side of the cockpit were 588 and 104-260mm, respectively. The length, width, and height from SRP forward, sideward, and downward to the elevator center were 380-568, 246-319, and 168-254mm. The length, width, and height from SRP forward, sideward, and downward to the throttle center were 356-555mm, 255-328, 179-264mm, respectively. The length from SRP to the rudder pedals was 712-885mm and its angle was 48°. The depth and width of the seat were 238-360 and 396mm, respectively. The height and angle of the seatback was 554 and 91-121°.
The Research to Power SCADA Based on J2EE Framework
Authors: Zhao Qiang, Chen Danyan
Venue: Proceedings of the 2009 WASE International Conference on Information Engineering - Volume 01 (2009)

In this paper, the problems exposed by the third generation of supervisory control and data acquisition (SCADA) based on the portable operating system interface of Unix (POSIX) standards for UNIX systems are analyzed. Then, a new power SCADA based on the four-tier architecture of J2EE platform is built. The common information model (CIM) database and graphics elements of scalable vector graphics (SVG) are created on the basis of CIM models of International Electrotechnical Commission (IEC) 61970. This design approach makes the system produce device models and topology automatically while generating SVG graphics and thus implements integrative graphic model library. Because of poor information sharing and interoperability of common object request broker architecture (CORBA) as the integration bus among power systems, the component interface specification (CIS) interfaces are implemented by Web services, which result in the seamless integration between SCADA and other systems and such integration is standard and open. The combination of enterprise JavaBeans (EJB) and Hibernate to implement the business logic and make data be persistent separately also makes the SCADA much more scalable and flexible. Because of its flexibility and extensibility, this new SCADA has great benefit to the automation course of electric power systems.
The PowerPoint Detox: Reinvent Your Slides and Add Power to Your Presentation
Authors: Patrick Forsyth
Venue:  (2009)

Everyone knows the feeling of attending a dreary and formulaic presentation where dense lumps of text are read verbatim from the screen. The expression death by PowerPoint says it all. But it need not be that way. With a little time and effort anyone can addlife to their presentations.The PowerPoint Detox is a straightforward, practical guide that helps readers prepare effective slides, improve their presenting style, make themselves understood, and enhance their message. It is designed to appeal to anyone who needs to use PowerPoint: new presenters and those with some experience, those who have had some training and those who have not. With sample slides and plenty of examples reproduced in PowerPoint style, The PowerPoint Detox is a how-to book that will help readers add explanatory power, style and professionalism to their presentations. 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