ppxscal/embedding_network huggingface dataset:
Comments-oriented blog summarization by sentence extraction
Authors: Meishan Hu, Aixin Sun, Ee-Peng Lim
Venue: Proceedings of the sixteenth ACM conference on Conference on information and knowledge management (2007)

Much existing research on blogs focused on posts only, ignoring their comments. Our user study conducted on summarizing blog posts, however, showed that reading comments does change one's understanding about blog posts. In this research, we aim to extract representative sentences from a blog post that best represent the topics discussed among its comments. The proposed solution first derives representative words from comments and then selects sentences containing representative words. The representativeness of words is measured using ReQuT (i.e., Reader, Quotation, and Topic). Evaluated on human labeled sentences, ReQuT together with summation-based sentence selection showed promising results.
Restoring 2D Content from Distorted Documents
Authors: Michael S. Brown, Mingxuan Sun, Ruigang Yang, Lin Yun, W. Brent Seales
Venue: IEEE Transactions on Pattern Analysis and Machine Intelligence (2007)

This paper presents a framework to restore the 2D content printed on documents in the presence of geometric distortion and non-uniform illumination. Compared with textbased document imaging approaches that correct distortion to a level necessary to obtain sufficiently readable text or to facilitate optical character recognition (OCR), our work targets nontextual documents where the original printed content is desired. To achieve this goal, our framework acquires a 3D scan of the document’s surface together with a high-resolution image. Conformal mapping is used to rectify geometric distortion by mapping the 3D surface back to a plane while minimizing angular distortion. This conformal "deskewing" assumes no parametric model of the document’s surface and is suitable for arbitrary distortions. Illumination correction is performed by using the 3D shape to distinguish content gradient edges from illumination gradient edges in the high-resolution image. Integration is performed using only the content edges to obtain a reflectance image with significantly less illumination artifacts. This approach makes no assumptions about light sources and their positions. The results from the geometric and photometric correction are combined to produce the final output.
A 0.35um CMOS 1,632-gate-count Zero-Overhead Dynamic Optically Reconfigurable Gate Array VLSI
Authors: M. Watanabe, F. Kobayashi
Venue: Proceedings of the 2007 Asia and South Pacific Design Automation Conference (2007)

A zero-overhead dynamic optically reconfigurable gate array VLSI (ZO-DORGA-VLSI) has been developed. It is based on a concept using junction capacitance of photodiodes and load capacitance of gates constructing a gate array as configuration memory and removing static memory function to store a context. In this paper, the performance of a 1,632 ZO-DORGA-VLSI, which was fabricated using a 0.35 mum - 4.9 mm square CMOS process chip, is presented. In addition, the design of an over 10,000 ZO-DORGA-VLSI is presented.
Detection and separation of speech events in meeting recordings using a microphone array
Authors: Futoshi Asano, Kiyoshi Yamamoto, Jun Ogata, Miichi Yamada, Masami Nakamura
Venue: EURASIP Journal on Audio, Speech, and Music Processing (2007)

When applying automatic speech recognition (ASR) to meeting recordings including spontaneous speech, the performance of ASR is greatly reduced by the overlap of speech events. In this paper, a method of separating the overlapping speech events by using an adaptive beamforming (ABF) framework is proposed. The main feature of this method is that all the information necessary for the adaptation of ABF, including microphone calibration, is obtained from meeting recordings based on the results of speech-event detection. The performance of the separation is evaluated via ASR using real meeting recordings.
Gene Selection with Rough Sets for Cancer Classification
Authors: Lijun Sun, Duoqian Miao, Hongyun Zhang
Venue: Proceedings of the Fourth International Conference on Fuzzy Systems and Knowledge Discovery - Volume 03 (2007)

A new method combining correlation based clustering and rough sets attribute reduction together for gene selection from gene expression data is proposed. Correlation based clustering is used as a filter to eliminate the redundant attributes, then the minimal reduct of the filtered attribute set is reduced by rough sets . Three different classification algorithms are employed to evaluate the performance of this novel method. High classification accuracies achieved on two public gene expression data sets show that this method is successful for selecting high discriminative genes for classification task. The experimental results indicate that rough sets based method has the potential to become a useful tool in bioinformatics.
Text and Layout Information Extraction from Document Files of Various Formats Based on the Analysis of Page Description Language
Authors: Takashi Hirano, Yuichi Okano, Yasuhiro Okada, Fumio Yoda
Venue: Proceedings of the Ninth International Conference on Document Analysis and Recognition - Volume 01 (2007)

We propose a document analysis method, which extracts text and layout information from document files of various formats. This method analyzes the Page Description Language (PDL) data generated from a printed document. By converting the document to PDL data, this method can handle various document formats. Graphic elements such as text objects, image objects, and path objects in the PDL data are analyzed to extract text and layout information (character size, character position, and table position). By applying OCR to the image objects and the path objects, text images in source documents and vectorized font characters in engineering drawings are converted to text. Moreover, tables in various documents are detected by analyzing path objects. Therefore, it is possible to extract the full content information from document files of various formats as long as the document is printable.
Associative Memories Using Cellular Neural Networks
Authors: Leonardo Garcia Correa, Alexandre C. B. Delbem, Zhao Liang
Venue: Proceedings of the Seventh International Conference on Intelligent Systems Design and Applications (2007)

This paper presents a performance comparison of vari- ous methods for associative memory design using Cellular Neural Networks (CNNs). Even though there have been an increasing interest in such kind of application for CNNs, there is no proper comparison of performance among the available methods in the literature. This paper reviews methods of associative memory design based on CNNs, and provides comparative performance analyses of these ap- proaches.
A Weighted Finite-State Framework for Correcting Errors in Natural Scene OCR
Authors: R. Beaufort, C. Mancas-Thillou
Venue: Proceedings of the Ninth International Conference on Document Analysis and Recognition - Volume 02 (2007)

With the increasing market of cheap cameras, natural scene text has to be handled in an efficient way. Some works deal with text detection in the image while more recent ones point out the challenge of text extraction and recognition. We propose here an OCR correction system to handle tra- ditional issues of recognizer errors but also the ones due to natural scene images, i.e. cut characters, artistic display, uncomplete sentences (present in advertisements) and out- of-vocabulary (OOV) words such as acronyms and so on. The main algorithm bases on Finite-State Machines (FSMs) to deal with learned OCR confusions, capital/accented let- ters and lexicon look-up. Moreover, as OCR is not consid- ered as a black box, several outputs are taken into account to intermingle recognition and correction steps. Based on a public database of natural scene words, detailed results are also presented along with future works.
A Distributed Microcomputer Control System for a High-Energy Gas-Laser Facility
Authors: B. G. Strait
Venue: Computer (1977)

Laser research facilities, with their typically severe EMI environment and attendant need for minimum length data links, represent an ideal application for a distributed microcomputer-based control system. This paper presents the conceptual design of a distributed control system for the High Energy Gas Laser Facility (Figure 1). Third in a series of experimental CO2 laser fusion systems at Los Alamos Scientific Laboratory in New Mexico, the HEGLF is aimed at exploring the use of lasers in thermonuclear research for power generation. As presently conceived, the system will contain multiple microcomputers, each with its own executive, performing dedicated functions under supervision of a central minicomputer. It will monitor six power amplifiers, the high-voltage pulse-power system, the laser preamplifiers, and the target systems, as well as automatically align the laser beams onto the target. System components, which will be distributed throughout the facility, will be interconnected via fiber-optics cables so as to combat the electromagnetic noise environment when the laser is fired.
Self-Configuration of Network Security
Authors: Huoping Chen, Youssif B. Al-Nashif, Guangzhi Qu, Salim Hariri
Venue: Proceedings of the 11th IEEE International Enterprise Distributed Object Computing Conference (2007)

The proliferation of networked systems and services along with their exponential growth in complexity and size has increased the control and management complexity of such systems and services by several orders of magnitude. As a result, management tools have failed to cope with and handle the complexity, dynamism, and coordination among network attacks. In this paper, we present a self-configuration approach to control and manage the security mechanisms of large scale networks. Self-configuration enables the system to automatically configure security system and change the configuration of its resources and their operational policies at runtime in order to manage the system security. Our Self-configuration approach is implemented using two software modules: Component Management Interface (CMI) to specify the configuration and operational policies associated with each component that can be a hardware resource or a software component; and Component Runtime Manger (CRM) that manages the component operations using the policies defined in CMI. We have used the Self-configuration framework to experiment with and evaluate different mechanisms and strategies to detect and protect against a wide range of network attacks.
An Integrated Prefetching and Caching Scheme for Mobile Web Caching System
Authors: Beihong Jin, Sihua Tian, Chen Lin, Xin Ren, Yu Huang
Venue: Proceedings of the Eighth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing - Volume 02 (2007)

Web caching and prefetching play an important role in improving the performance of Web access in wireless environment. In this paper, we present a compact set of algorithms for integrating web caching and prefetching for wireless local area network, including sequence-mining based prediction algorithm, context-aware prefetching algorithm and profit-driven caching replacement policy, and then implement them in Web caching system OnceEasyCache. We also evaluate this integrated scheme by conducting the trace-based experiments on the OnceEasyCache system.
Personal Dynamic Media
Authors: A. Kay
Venue: Computer (1977)

The Learning Research Group at Xerox Palo Alto Research Center is concerned with all aspects of the communication and manipulation of knowledge. We design, build, and use dynamic media which can be used by human beings of all ages. Several years ago, we crystallized our dreams into a design idea for a personal dynamic medium the size of a notebook (the Dynabook) which could be owned by everyone and could have the power to handle virtually all of its owner's information-related needs. Towards this goal we have designed and built a communications system: the Smalltalk language, implemented on small computers we refer to as "interim Dynabooks." We are exploring the use of this system as a programming and problem solving tool; as an interactive memory for the storage and manipulation of data; as a text editor; and as a medium for expression through drawing, painting, animating pictures, and composing and generating music. (Figure 1 is a view of this interim Dynabook.)
The GCX system: dynamic buffer minimization in streaming XQuery evaluation
Authors: Christoph Koch, Stefanie Scherzinger, Michael Schmidt
Venue: Proceedings of the 33rd international conference on Very large data bases (2007)

In this demonstration, we present the main-memory based streaming XQuery engine GCX which implements novel buffer management strategies that combine static and dynamic analysis to keep main memory consumption low. Depending on the progress made in query evaluation, memory buffers are dynamically purged and minimized. In this demo, we show the various stages in evaluating a practical fragment of XQuery with GCX. We present the major steps in static analysis and demonstrate the mechanisms of dynamic buffer minimization. We apply our system to XML streams and demonstrate the significant impact of our approach on reducing main memory consumption and running time.
The SIS Epidemic Model with Impulsive Effects
Authors: Zhen Jin, Mainul Haque
Venue: Proceedings of the Eighth ACIS International Conference on Software Engineering, Artificial Intelligence, Networking, and Parallel/Distributed Computing - Volume 03 (2007)

In this paper, a pulse vaccination and pulse destroying (or isolation) SIS model is proposed for integrated logistic type population dynamics and periodic infection rate \beta(t). The dynamical behavior of the model is analyzed. The basic reproductive number R0 is defined. It is proved that the infection-free periodic solution is globally stable if R0 \le 1. The infection-free periodic solution is unstable when R0 \ge 1.
The Usable Intersection of PC Graphics and NTSC Video Recording
Authors: Tom DeFanti, Dan Sandin, Maxine Brown
Venue: IEEE Computer Graphics and Applications (1987)

There are many reasons for users of computer graphics to want to distribute and/or record their output on standard television equipment: in-house documentation of user interfaces, teleconferencing, presentations to groups, and quality media production, to name a few. Unfortunately, most raster graphics devices do not, in fact, generate NTSC video as well as a cheap videocassette recorder or home color video camera does. High-resolution (e.g., 1024 x 1024) and noninterlaced 60-Hz displays designed for direct viewing do not adhere to NTSC standards because they grossly surpass the NTSC bandwidth. Display boards for PCs that generate raster images at equal or less resolution than NTSC video, including those that are able to use NTSC television monitors, vary greatly in video recordability. Even those devices claiming to be NTSC compatible often have severe detail errors in the signal; some errors can be easily corrected with post-production video equipment, while others make the signal difficult to record and edit. This article exposes the problems created by nonstandard video on PCs, proposes many solutions, and offers a detailed case study of one particular system.
CORDS: automatic generation of correlation statistics in DB2
Authors: Ihab F. Ilyas, Volker Markl, Peter J. Haas, Paul G. Brown, Ashraf Aboulnaga
Venue: Proceedings of the Thirtieth international conference on Very large data bases - Volume 30 (2004)

When query optimizers erroneously assume that database columns are statistically independent, they can underestimate the selectivities of conjunctive predicates by orders of magnitude. Such underestimation often leads to drastically suboptimal query execution plans. We demonstrate cords, an efficient and scalable tool for automatic discovery of correlations and soft functional dependencies between column pairs. We apply cords to real, synthetic, and TPC-H benchmark data, and show that cords discovers correlations in an efficient and scalable manner. The output of cords can be visualized graphically, making cords a useful mining and analysis tool for database administrators. cords ranks the discovered correlated column pairs and recommends to the optimizer a set of statistics to collect for the "most important" of the pairs. Use of these statistics speeds up processing times by orders of magnitude for a wide range of queries.
Cognitive View of Reuse and Redesign
Authors: G. Fischer
Venue: IEEE Software (1987)

Reusable components are not enough. Program designers need tools that help them understand the components and how to use them. Fortunately, some support tools do exist.
Design Method for Numerical Function Generators Based on Polynomial Approximation for FPGA Implementation
Authors: Shinobu Nagayama, Tsutomu Sasao, Jon T. Butler
Venue: Proceedings of the 10th Euromicro Conference on Digital System Design Architectures, Methods and Tools (2007)

This paper focuses on numerical function generators (NFGs) based on k-th order polynomial approximations. We show that increasing the polynomial order k reduces significantly the NFG's memory size. However, larger k requires more logic elements and multipliers. To quantify this tradeoff, we introduce the FPGA utilization measure, and then determine the optimum polynomial order k. Experimental results show that: 1) for low accuracies (up to 17 bits), 1st order polynomial approximations produce the most efficient implementations; and 2) for higher accuracies (18 to 24 bits), 2nd-order polynomial approximations produce the most efficient implementations.
Modeling and simulation of grain threshing and separation in axial threshing units
Authors: Petre I. Miu, Heinz-Dieter Kutzbach
Venue: Computers and Electronics in Agriculture (2008)

The threshing process - by which the grains are removed from the ears - begins effectively at the feeding zone of threshing unit. At the same time, grain separation occurs in the feeding zone of the threshing unit if the rotor cage has openings. This paper presents the application of mathematical model for grain threshing and separation (described in Part I) in an axial threshing unit with separation beginning in the tangential feeding zone. The model describes and quantifies the cumulative percentages of unthreshed grain, free grain, and separated grain over the entire length of the rotor. Grain threshing and separation losses are also quantified. The mathematical model was validated using reliable and comprehensive experimental data. Very good agreement was found between theoretical (predicted) and experimental data for separated grain as well as for threshing, and separation losses of grain over the entire range of testing conditions. Assuming that a set of minimum experimental data is provided for initialization of model parameters, the model can be further used for:*process simulation that means reduction of testing time and associated costs, *optimization of design and functional parameters of threshing unit, *development of control software and process controllers for combine harvesters. This is the only model ever published for this type of axial threshing units.
An Effective Trust Establishment Scheme for Authentication in Mobile Ad Hoc Networks
Authors: Guojun Wang, Qiong Wang, Jiannong Cao, Minyi Guo
Venue: Proceedings of the 7th IEEE International Conference on Computer and Information Technology (2007)

Distributed authentication has the property of high security compared with existing authentication schemes. However, its success ratio for authentication may be not high, especially in large-scale Mobile Ad- Hoc Networks (MANETs). In order to address this issue, we propose a hybrid authentication scheme which integrates the chained authentication with the distributed authentication. When a node can't find enough authentication nodes in its one-hop neighborhood to authenticate itself, it requests its neighboring nodes to find a certificate chain to do so through the chained authentication. Hence, our scheme overcomes the drawbacks in terms of success ratio for authentication. Theoretical analysis and simulation studies show that, compared with the chained authentication schemes, our scheme is more scalable and it can increase the success ratio for authentication, without sacrificing the security requirement. Keywords: Authentication, Cryptography, Secret Sharing, Trust Transfer, Mobile Ad-Hoc Networks
Moral conflicts perceived by students of a project course
Authors: Tero Vartiainen
Venue: Proceedings of the 6th Baltic Sea conference on Computing education research: Koli Calling 2006 (2006)

Regardless of the popularity of project courses in computing curricula, little is researched on moral issues in these courses. The aim of this study was to increase understanding in this area by determining what students on a project course in information systems (IS) perceived as moral conflicts. Data was gathered from diaries, drawings, interviews and questionnaires, and the analysis was inspired by phenomenography. The results show that the hardest moral conflicts were confronted when a student acted in a project manager's role, and that many originated in problems related to the group process. A two-dimensional structure of moral conflicts was found. The results are considered in the light of the existing literature, and implications for research and practice are presented.
Finding Picture Edges Through Collinearity of Feature Points
Authors: F. O'Gorman
Venue: IEEE Transactions on Computers (1976)

The recovery of straight picture edges from digitizations of scenes containing polyhedra ("line finding") is central to the functioning of scene analysis programs. While recognizing that recovery properly involves a computational mobilization of a great deal of knowledge-supported context, there remain some basic issues of representation which govern the way in which the primary data grey levels are addressed. The paper describes a parametric representation of straight picture edges and its procedural deployment in the recovery of edges from digitizations of scenes whose contents are essentially polyhedra with strong visible shadows.
Relatively regular languages and thin codes
Authors: Yun Liu, K. P. Shum, Yuqi Guo
Venue: European Journal of Combinatorics (2008)

A language is called a relatively regular language if its syntactic monoid has finite ideals. In this paper, we show that there are close relationships between the relatively regular languages and some other classes of languages such as (generalized) disjunctive languages, fd-domains and 2-codes. In particular, we prove that every relatively regular 2-code is thin. Thus, the well known result of Bestel and Perrin in 1985 becomes an easy corollary of our result.
Processor Design in 3D Die-Stacking Technologies
Authors: Gabriel H. Loh, Yuan Xie, Bryan Black
Venue: IEEE Micro (2007)

Three-dimensional die-stacking integration stacks multiple layers of processed silicon with a very high-density, low-latency layer-to-layer interconnect. After presenting a brief background on 3D die-stacking technology, this article gives multiple case studies on different approaches for implementing single-core and multicore 3D processors and discusses how to design future microprocessors given this emerging technology.
A New Signal Denoising Algorithm from Wavelet Modulus Maxima
Authors: Yi Liu, Xu Cheng
Venue: Proceedings of the Fourth International Conference on Fuzzy Systems and Knowledge Discovery - Volume 03 (2007)

In this paper, a new signal denoising algorithm from wavelet transform modulus maxima (WTMM) is proposed. It essentially combines Mallat's multiresolution analysis(MRA) theory and Donoho's denoising approach. With WTMM, we can improve the signal reconstruction approach and then an automatic denoising algorithm is possible. This method is of explicit physical meaning and can be implemented conveniently. Improved signal denoising results are obtained in comparison with the other denoising methods.