ppxscal/embedding_network huggingface dataset:
V.S.P.O.W.: an innovative collaborative writing approach to improve Chinese as L2 pupils' linguistic skills
Authors: Lung-Hsiang Wong, Chee-Kuen Chin, Wenli Chen, Ping Gao
Venue: Proceedings of the 9th international conference on Computer supported collaborative learning - Volume 1 (2009)

This paper outlines an eclectic approach to assist juvenile Chinese as second language (L2) pupils in Singapore in developing linguistic-related micro-skills for writing. The recursive, bottom-up writing process requires the pupils to collaboratively carry out "word/phrase pooling", "sentence making", "paragraph writing" and "outlining" on wiki, and eventually composing their essays individually. The intention is to fill up the gap between the current-traditional product-oriented approach and the more cognitively demanding process-oriented approach, that is, juvenile L2 learners' limited linguistic and cognitive skills that would hinder them from writing proper essays, not to mention carrying out process writing. The results of our pilot study show that the target pupils' micro-skills for writing were improved significantly due to emergent peer coaching. There is also an implication that through such peer coaching activities, the perceived challenge of pupils' individual differences in linguistic proficiency could be turned into an advantage for motivating pupils' collaboration in learning.
Prospex: Protocol Specification Extraction
Authors: Paolo Milani Comparetti, Gilbert Wondracek, Christopher Kruegel, Engin Kirda
Venue: Proceedings of the 2009 30th IEEE Symposium on Security and Privacy (2009)

Protocol reverse engineering is the process of extracting application-level specifications for network protocols. Such specifications are very useful in a number of security-related contexts, for example, to perform deep packet inspection and black-box fuzzing, or to quickly understand custom botnet command and control (C\&C) channels.Since manual reverse engineering is a time-consuming and tedious process, a number of systems have been proposed that aim to automate this task. These systems either analyze network traffic directly or monitor the execution of the application that receives the protocol messages. While previous systems show that precise message formats can be extracted automatically, they do not provide a protocol specification.The reason is that they do not reverse engineer the protocol state machine.In this paper, we focus on closing this gap by presenting a system that is capable of automatically inferring state machines. This greatly enhances the results of automatic protocol reverse engineering, while further reducing the need for human interaction. We extend previous work that focuses on behavior-based message format extraction,and introduce techniques for identifying and clustering different types of messages not only based on their structure, but also according to the impact of each message on server behavior.Moreover, we present an algorithm for extracting the state machine.We have applied our techniques to a number of real-world protocols, including the command and control protocol used by a malicious bot. Our results demonstrate that we are able to extract format specifications for different types of messages and meaningful protocol state machines. We use these protocol specifications to automatically generate input for a stateful fuzzer,allowing us to discover security vulnerabilities in real-world applications.
Finite Element Analysis for Bending Stress of Face-Gear
Authors: Shuyan Zhang, Guangming Lei, Minghai Wang, Hui Guo
Venue: Proceedings of the 2009 International Conference on Measuring Technology and Mechatronics Automation - Volume 02 (2009)

The top edge of the shaper tooth is rounded to improve the bending strength of face gears, and then the fillet surface equation of face gear is presented. After the Tooth Contact Analysis (TCA), the variation of bending stresses is computed during the cycle of meshing and when some parameters are changed based on the 3-Dimension contact finite element method. Results indicate that both of the nominal pressure angle and shaft adjustments of face-gear obviously affect the bending strength.
Interaction with Colored Graphical Representations on Braille Devices
Authors: Christiane Taras, Thomas Ertl
Venue: Proceedings of the 5th International Conference on Universal Access in Human-Computer Interaction. Addressing Diversity. Part I: Held as Part of HCI International 2009 (2009)

For several years there has been the wish to make colors accessible to blind people. Colors are all around us and sighted people often talk about colors as it is a simple means of distinguishing objects. They are used in educational materials to ease perception, support comprehension, and focus on different aspects. In this paper we present a new color code for viewing and editing colored graphics on Braille devices and report on our experiences with presen ting graphics on Braille devices and our ongoing work on exploration strategies.
Evaluation of Speech Emotion Classification Based on GMM and Data Fusion
Authors: Martin Vondra, Robert Vích
Venue: Cross-Modal Analysis of Speech, Gestures, Gaze and Facial Expressions: COST Action 2102 International Conference Prague, Czech Republic, October 15-18, 2008 Revised Selected and Invited Papers (2009)

This paper describes continuation of our research on automatic emotion recognition from speech based on Gaussian Mixture Models (GMM). We use similar technique for emotion recognition as for speaker recognition. From previous research it seems to be better to use a lesser number of GMM components than is used for speaker recognition and better results are also achieved for a greater number of speech parameters used for GMM modeling. In previous experiments we used suprasegmental and segmental parameters separately and also together, which can be described as fusion on feature level. The experiment described in this paper is based on an evaluation of score level fusion for two GMM classifiers used separately for segmental and suprasegmental parameters. We evaluate two techniques of score level fusion --- dot product of scores from both classifiers and maximum selection and maximum confidence selections.
Proofs on Encrypted Values in Bilinear Groups and an Application to Anonymity of Signatures
Authors: Georg Fuchsbauer, David Pointcheval
Venue: Proceedings of the 3rd International Conference Palo Alto on Pairing-Based Cryptography (2009)

We give a generic methodology to unlinkably anonymize cryptographic schemes in bilinear groups using the Boneh-Goh-Nissim cryptosystem and nizk proofs in the line of Groth, Ostrovsky and Sahai. We illustrate our techniques by presenting the first instantiation of anonymous proxy signatures (in the standard model), a recent primitive unifying the functionalities and strong security notions of group and proxy signatures. To construct our scheme, we introduce various efficient nizk and witness-indistinguishable proofs.
Towards agent-based cross-lingual interoperability of distributed lexical resources
Authors: Claudia Soria, Maurizio Tesconi, Andrea Marchetti, Francesca Bertagna, Monica Monachini, Chu-Ren Huang, Nicoletta Calzolari
Venue: Proceedings of the Workshop on Multilingual Language Resources and Interoperability (2006)

In this paper we present an application fostering the integration and interoperability of computational lexicons, focusing on the particular case of mutual linking and cross-lingual enrichment of two wordnets, the ItalWordNet and Sinica BOW lexicons. This is intended as a case-study investigating the needs and requirements of semi-automatic integration and interoperability of lexical resources.
Colouring Non-sparse Random Intersection Graphs
Authors: Sotiris Nikoletseas, Christoforos Raptopoulos, Paul G. Spirakis
Venue: Proceedings of the 34th International Symposium on Mathematical Foundations of Computer Science 2009 (2009)

An intersection graph of n vertices assumes that each vertex is equipped with a subset of a global label set. Two vertices share an edge when their label sets intersect. Random Intersection Graphs (RIGs) (as defined in [18,32]) consider label sets formed by the following experiment: each vertex, independently and uniformly, examines all the labels (m in total) one by one. Each examination is independent and the vertex succeeds to put the label in her set with probability p. Such graphs nicely capture interactions in networks due to sharing of resources among nodes. We study here the problem of efficiently coloring (and of finding upper bounds to the chromatic number) of RIGs. We concentrate in a range of parameters not examined in the literature, namely: (a) m = n ¿ for ¿ less than 1 (in this range, RIGs differ substantially from the Erdös-Renyi random graphs) and (b) the selection probability p is quite high (e.g. at least $\frac{\ln^2{n}}{m}$ in our algorithm) and disallows direct greedy colouring methods.We manage to get the following results: For the case mp ≤ βln n, for any constant β < 1 ¿ ¿, we prove that np colours are enough to colour most of the vertices of the graph with high probability (whp). This means that even for quite dense graphs, using the same number of colours as those needed to properly colour the clique induced by any label suffices to colour almost all of the vertices of the graph. Note also that this range of values of m, p is quite wider than the one studied in [4]. We propose and analyze an algorithm CliqueColour for finding a proper colouring of a random instance of ${\cal G}_{n, m, p}$, for any mp ¿ ln 2 n. The algorithm uses information of the label sets assigned to the vertices of G n, m, p and runs in $O\left(\frac{n^2mp^2}{\ln{n}} \right)$ time, which is polynomial in n and m. We also show by a reduction to the uniform random intersection graphs model that the number of colours required by the algorithm are of the correct order of magnitude with the actual chromatic number of G n, m, p . We finally compare the problem of finding a proper colouring for G n, m, p to that of colouring hypergraphs so that no edge is monochromatic. We show how one can find in polynomial time a k-colouring of the vertices of G n, m, p , for any integer k, such that no clique induced by only one label in G n, m, p is monochromatic. Our techniques are novel and try to exploit as much as possible the hidden structure of random intersection graphs in this interesting range.
Detection and Segmentation of Independently Moving Objects from Dense Scene Flow
Authors: Andreas Wedel, Annemarie Meißner, Clemens Rabe, Uwe Franke, Daniel Cremers
Venue: Proceedings of the 7th International Conference on Energy Minimization Methods in Computer Vision and Pattern Recognition (2009)

We present an approach for identifying and segmenting independently moving objects from dense scene flow information, using a moving stereo camera system. The detection and segmentation is challenging due to camera movement and non-rigid object motion. The disparity, change in disparity, and the optical flow are estimated in the image domain and the three-dimensional motion is inferred from the binocular triangulation of the translation vector. Using error propagation and scene flow reliability measures, we assign dense motion likelihoods to every pixel of a reference frame. These likelihoods are then used for the segmentation of independently moving objects in the reference image. In our results we systematically demonstrate the improvement using reliability measures for the scene flow variables. Furthermore, we compare the binocular segmentation of independently moving objects with a monocular version, using solely the optical flow component of the scene flow.
Image fusion enhancement of deformable human structures using a two-stage warping-deformable strategy: A content-based image retrieval consideration
Authors: Fuk-Hay Tang, H. S. Horace Ip
Venue: Information Systems Frontiers (2009)

In medical image registration and content-based image retrieval, the rigid transformation model is not adequate for anatomical structures that are elastic or deformable. For human structures such as abdomen, registration would involve global features such as abdominal wall as well as local target organs such as liver or spleen. A general non-rigid registration may not be sufficient to produce image matching of both global and local structures. In this study, a warping-deformable model is proposed to register images of such structures. This model uses a two-stage strategy for image registration of abdomen. In the first stage, the global-deformable transformation is used to register the global wall. The warping-transformation is used in second stage to register the liver. There is a good match of images using the proposed method (mean similarity index¿=¿0.73545).The image matching correlation coefficients calculated from eight pairs of CT and MR images of abdomen indicates that the warping-deformable transformation gives better matching of images than those without transformation (p¿<¿0.001, paired t-test). This study has established a model for image registration of deformable structures. This is particularly important for data mining of image content retrieval for structures which are non-rigid. The result obtained is very promising but further clinical evaluation is needed
Gold Coating of a Plastic Optical Fiber Based on PMMA
Authors: Seok Min Kim, Sung Hun Kim, Eun Ju Park, Dong Lyun Cho, Moo Sung Lee
Venue: Proceedings of the 13th International Conference on Human-Computer Interaction. Part III: Ubiquitous and Intelligent Interaction (2009)

We investigated the adhesion between gold thin film and poly(methyl methacrylate) (PMMA) and poly(vinylidene fluoride-co-hexafluoropropylene) (P(VDF-co-HFP)) substrates with the aim of imparting electrical conductivity to plastic optical fibers (POFs). The two polymers were used as the core and the cladding of POF, respectively. Gold thin film of 50nm thickness was deposited by ion sputtering onto the polymers and also POF. Several approaches, which were well known to be effective in enhancing adhesive strength between gold and polymers, were applied in this study: introduction of polar functionality on the substrate surface by plasma treatment, buffer layer insertion, and physical surface roughening. The variation of wettability and adhesion with plasma conditions was investigated through water contact angle measurement and cross hatch cut test. Even though the contact angles of substrates were decreased after Ar or O2 plasma treatment, irrespective of the polymer type, the adhesion of polymers with gold layer was very poor. The Ti buffer layer of 5nm thickness, which was deposited between PMMA substrate and gold layer, did not contribute to improve the adhesion. However, P(VDF-co-HFP) substrates with rough surface of 13.44nm RMS shows 3B class adhesion to gold from the cross hatch tape test. The gold-coated POF showed the electrical conductivity of 1.35×103Scm¿ 1 without significant optical loss. The result may be used for developing a medical device capable of simultaneously applying electrical and optical stimulus.
ESA: a CLIM library for writing Emacs-Style Applications
Authors: Robert Strandh, David Murray, Troels Henriksen, Christophe Rhodes
Venue: Proceedings of the 2007 International Lisp Conference (2007)

We describe ESA (for Emacs-Style Application), a library for writing applications with an Emacs look-and-feel within the Common Lisp Interface Manager. The ESA library takes advantage of the layered design of CLIM to provide a command loop that uses Emacs-style multi-keystroke command invocation. ESA supplies other functionality for writing such applications such as a minibuffer for invoking extended commands and for supplying command arguments, Emacs-style keyboard macros and numeric arguments, file and buffer management, and more. ESA is currently used in two major CLIM applications: the Climacs text editor (and the Drei text gadget integrated with the McCLIM implementation), and the Gsharp score editor. This paper describes the features provided by ESA, gives some detail about their implementation, and suggests avenues for further work.
Knowledge-Guided Docking of WW Domain Proteins and Flexible Ligands
Authors: Haiyun Lu, Hao Li, Shamima Banu Bte Sm Rashid, Wee Kheng Leow, Yih-Cherng Liou
Venue: Proceedings of the 4th IAPR International Conference on Pattern Recognition in Bioinformatics (2009)

Studies of interactions between protein domains and ligands are important in many aspects such as cellular signaling. We present a knowledge-guided approach for docking protein domains and flexible ligands. The approach is applied to the WW domain, a small protein module mediating signaling complexes which have been implicated in diseases such as muscular dystrophy and Liddle's syndrome. The first stage of the approach employs a substring search for two binding grooves of WW domains and possible binding motifs of peptide ligands based on known features. The second stage aligns the ligand's peptide backbone to the two binding grooves using a quasi-Newton constrained optimization algorithm. The backbone-aligned ligands produced serve as good starting points to the third stage which uses any flexible docking algorithm to perform the docking. The experimental results demonstrate that the backbone alignment method in the second stage performs better than conventional rigid superposition given two binding constraints. It is also shown that using the backbone-aligned ligands as initial configurations improves the flexible docking in the third stage. The presented approach can also be applied to other protein domains that involve binding of flexible ligand to two or more binding sites.
Workshop Organizers' Message
Authors: Michal Krátký, Irena Mlynkova, Eric Pardede
Venue: Database Systems for Advanced Applications: DASFAA 2009 International Workshops: BenchmarX, MCIS, WDPP, PPDA, MBC, PhD, Brisbane, Australia, April 20 - 23, 2009 (2009)

The 1st International Workshop on Benchmarking of XML and Semantic Web Applications (BenchmarX'09)was held on April 20, 2009 at the University of Queensland in Brisbane, Australia in conjunction with the 14th International Conference on Database Systems for Advanced Applications (DASFAA'09). It was organized by Jiri Dokulil, Irena Mlynkova and Martin Necasky from the Department of Software Engineering of the Charles University in Prague, Czech Republic.The main motivation of the workshop was based on the observation that even though XML and semantic data processing is the main topic of many conferences around the world, the communities dealing with XML and semantic data benchmarking and related issues are still scattered. Moreover, although benchmarking is one of the key aspects of improvements of data processing, the majority of researches naturally concentrate on proposing new approaches, while benchmarking is often neglected. Therefore, the aim of BenchmarX was and is to bring the benchmarking research community together and to provide an opportunity to deal with this topic more thoroughly.
Effect of Background Correction on Cancer Classification with Gene Expression Data
Authors: Adelaide Freitas, Gladys Castillo, Ana São Marcos
Venue: Proceedings of the 12th Conference on Artificial Intelligence in Medicine: Artificial Intelligence in Medicine (2009)

This paper empirically compares six background correction methods aimed at removing unspecific background noise of the overall signal level measured by a scanner across microarrays. Using three published cDNA microarray datasets we investigated the effect of background correction on cancer classification in terms of the predictive performance of two classifiers (k-NN and support vector machine with linear kernel) induced from microarray data where a particular background correction method is applied, individually and in combination with a single-bias or double-bias-removal normalization method.
How Urgent is Urgent? The Impact of Culturally-Based Temporal Perceptions on Virtual Teams
Authors: Richard Egan, Marilyn Tremaine, Jerry Fjermestad, Suling Zhang, Allen E. Milewski, Patrick O'Sullivan
Venue: Proceedings of the 2009 Fourth IEEE International Conference on Global Software Engineering (2009)

In this poster, we present the results from a survey and interviews conducted on global software teams working in Ireland, the US, China and India. Our survey and semi-structured interviews investigated the effect of culturally-based time differences between non-collocated team members. An analysis of the survey data found that differences in temporal urgency, that is, the general sense a person has that time is running short and one has to hurry, significantly lowered the communication quality of teams which, in turn, negatively affected both the trust and satisfaction of the team members. The follow-up interviews corroborated these results and provided a picture of cultures with a high sense of urgency working more effectively with each other. Overall, our work suggests that although virtual team members belong to a single corporate culture, there is an overriding influence of their nation’s sense of time which affects cross-cultural interactions
Experimental Research on Dynamic Characters of SRC Frame-RC Shear Wall Hybrid Structure Main Building in Large Thermal Power Plants
Authors: Ling-guo Kang, Guo-liang Bai, Xiao-wen Li, Hong-xing Li, Chun-lian Zhao
Venue: Proceedings of the 2009 IITA International Conference on Control, Automation and Systems Engineering (case 2009) (2009)

A 1/7 scale space model experiment of three spans and three frames which are from SRC frame-RC shear wall hybrid structure main building in large thermal power plants has been carried out. The natural vibration frequencies and mode shapes of experimental model obtained through hammering method, and dynamic characters of prototype structure are acquired according to similarity relationships. The finite element model of hybrid prototype structure main building built with SAP2000 software was used to analyze structural modal. The natural vibration frequencies and mode shapes obtained and compared with experimental results. The results express that the first mode shape of hybrid structure presents as horizontal translation, there is a little difference between longitudinal stiffness and horizontal stiffness. The research will be base for study on seismic performance of hybrid structure main building in large thermal power plants.
MCTS Self-Paced Training Kit: Microsoft SQL Server 2008 Business Intelligence Development and Maintenance, 1st edition
Authors: Erik Veerman, Teo Lachev, Dejan Sarka
Venue: Self-Paced Training Kits (2009)

Ace your preparation for the skills measured by MCTS Exam 70-448 and on the job. Work at your own pace through a series of lessons and reviews that fully cover each exam objective. Then, reinforce and apply what you ve learned through real-world case scenarios and practice exercises. This official Microsoft study guide is designed to help you make the most of your study time. Maximize your performance on the exam by learning to: Create SSIS packages; troubleshoot data flow and control flow Configure, debug, and deploy SSIS solutions Develop SSAS cubes for OLAP and data mining services Implement custom logic with MDX Optimize storage design and query performance Create SSRS reports; enable interactivity; write custom code Manage the report environment Configure security features for SSIS, SSAS, and SSRS Assess your skills with the practice tests on CD. You can work through hundreds of questions using multiple testing modes to meet your specific learning needs. You get detailed explanations for right and wrong answers including a customized learning path that describes how and where to focus your studies. Your kit includes: 15% exam discount from Microsoft. Offer expires 12/31/13. Details inside. Official self-paced study guide. Practice tests with multiple, customizable testing options and a learning plan based on your results. 200 practice and review questions. 180-day trial of SQL Server 2008 Enterprise Edition. Case scenarios, exercises, and best practices. Fully searchable eBook of this guide, plus sample chapters from related books.