ppxscal/embedding_network huggingface dataset:
Macroblock Feature Based Complexity Reduction for H.264/AVC Motion Estimation
Authors: Yiqing Huang, Qin Liu, Takeshi Ikenaga
Venue: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences (2008)

In H.264/AVC standard, many new techniques such as variable block size (VBS) and multiple reference frame (MRF) are used in motion estimation (ME) part to achieve superior coding performance. However, the use of new techniques will also cause great burden on computation complexity, which leads to problems in low power hardware implementation. Many software based fast ME algorithms are proposed to reduce complexity. For real-time hardwired encoder, the huge throughput of fractional motion estimation (FME) and integer motion estimation (IME) makes pipeline stage a must. In this case, IME is arranged in a single stage, which deteriorates the efficiency of many software based algorithms. Based on the hardware data flow, this paper provides a complexity reduction algorithm which speeds up ME procedure through three schemes. Firstly, the proposed algorithm executes similarity analysis to detect big mode MB and apply early termination in IME stage. Secondly, for normal MB, motion feature is extracted after IME of each frame and a 6-ring based search range adjustment scheme is introduced to remove redundant search positions. Thirdly, for MBs which have large motion feature, the pixel difference is very small due to the blur effect on video sensor. So, we use subsampling technique to reduce computation complexity for such MBs. Experimental results show that, compared with hardware friendly full search algorithm, the proposed fast ME algorithm can reduce 52.63% to 83.21% ME time with negligible video quality degradation. Furthermore, since the proposed algorithm works in a hardware friendly way, it can be embedded into 3-stage real-time hardwired video encoder to achieve low power design.
A fuzzy expert system for country-wide planning of renewable energy production and distribution in Turkey
Authors: Eralp Ozil, Alper Ozpinar
Venue: Proceedings of the 8th conference on Applied informatics and communications (2008)

Renewable Energy production is becoming more important day by day due to a rapid increase for reliable, sufficient, timely, and economic and environmentally energy production. Public awareness about environment has a great impact on choosing the renewable resources for the renewable based electricity production systems. The Commission on Environment of the Turkish Grand National Assembly approved the Kyoto Protocol on Global Warming in June 2008, which makes the importance of renewable energy one step more important for Turkey. When all the potential renewable energy sources of Turkey is considered, hydraulic and wind and solar energies can meet almost 1/3 of the total demand and a very high percentage of the electricity production in the country. However country-wide planning of production and distribution is vital just because the potential of renewable resources diversed among the geographical regions and according to the time of the year in Turkey. The current structure of Turkey's energy policies, latest developments, and renewable energy potentials has analyzed. For planning and distribution scenarios five different regions of Turkey is used for sample data in means of wind, hydro and solar renewable energy potentials. A road map and a fuzzy expert system for a possible planning and distribution road map has been proposed.
Structured Analog CMOS Design, 1st edition
Authors: Danica Stefanovic, Maher Kayal
Venue: Analog Circuits And Signal Processing (2008)

Structured Analog CMOS Design describes a structured analog design approach that makes it possible to simplify complex analog design problems and develop a design strategy that can be used for the design of large number of analog cells. It intentionally avoids treating the analog design as a mathematical problem, developing a design procedure based on the understanding of device physics and approximations that give insight into parameter interdependences. The proposed transistor-level design procedure is based on the EKV modeling approach and relies on the device inversion level as a fundamental design variable. Since all important design parameters can be expressed as continuous functions of the device inversion level, the design optimum as well as the technology limits can be easily found. The basic design concept consists in analog cell partitioning into the basic analog structures and sizing of these basic analog structures in a predefined procedural design sequence. The procedural design sequence ensures the correct propagation of design specifications, the verification of parameter limits and the local optimization loops. The proposed design procedure is also implemented as a CAD tool that follows this book. Finally, as a practical example, the design of analog amplifiers in a hybrid multi-bit Delta-Sigma modulator system is described in detail from system level to transistor level.
Economic Analysis of Social Sharing of Computer: Taking Teaching-use Computer Resource of Chinese University as an Example
Authors: Jianwei Zheng, Jianfeng Chen
Venue: Proceedings of the 2009 Second International Workshop on Knowledge Discovery and Data Mining (2009)

Taking teaching-use computer resource of Chinese university as the research object, this article calculates the number and economic value of teaching-use computer resource of Chinese university by data collection and data analysis, then carries out dynamic analysis of economic value of computer based on time series, and uses accounting method to analyze depreciation of economic value of computer. It discusses the feasibility of social sharing from application characteristics of teaching-use computer resource of Chinese university, then constructs social sharing utility function of teaching-use computer resource of Chinese university and analyzes the constraint condition of realizing social utility maximum of teaching-use computer resource of Chinese university.
Going my way: a user-aware route planner
Authors: Jaewoo Chung, Chris Schmandt
Venue: Proceedings of the 27th international conference on Human factors in computing systems (2009)

Going My Way is a mobile user-aware route planner. The system collects GPS data of a user's everyday locations and provides directions from an automatically selected set of landmarks that are close to the destination, informed by the user's usual travel patterns. In this paper, we present a brief description of the system, the results of a preliminary experiment in memory and recognition of landmarks, in addition to the results of a user evaluation of the system.
Information and Communication Technologies for Economic and Regional Developments
Authors: M. Hakikur Rahman
Venue:  (2007)

"The information revolution has completely transformed the global development approach through innovative utilization of information and communication technologies (ICTs). Specifically, in ICT practices for development, contribution of information and knowledge management is significant. Information and Communication Technologies for Economic and Regional Developments includes evolution, planning, development, implementation, and practical implications of diversified development practices around the world, focusing on socio-economic empowerment and regional developments through ICTs. Information and Communication Technologies for Economic and Regional Developments provides recommendations, success cases and failures of those development practices that can be taken into consideration for future project preparation."
Mining Order-Preserving Submatrices from Data with Repeated Measurements
Authors: Chun Kit Chui, Ben Kao, Kevin Y. Yip, Sau Dan Lee
Venue: Proceedings of the 2008 Eighth IEEE International Conference on Data Mining (2008)

Order-preserving submatrices (OPSM's) have been shown useful in capturing concurrent patterns in data when the relative magnitudes of data items are more important than their absolute values. To cope with data noise, repeated experiments are often conducted to collect multiple measurements. We propose and study a more robust version of OPSM, where each data item is represented by a set of values obtained from replicated experiments. We call the new problem OPSM-RM (OPSM with repeated measurements). We define OPSM-RM based on a number of practical requirements. We discuss the computational challenges of OPSM-RM and propose a generic mining algorithm. We further propose a series of techniques to speed up two time-dominating components of the algorithm. We clearly show the effectiveness of our methods through a series of experiments conducted on real microarray data.
Abstract Answer Set Solvers
Authors: Yuliya Lierler
Venue: Proceedings of the 24th International Conference on Logic Programming (2008)

Nieuwenhuis, Oliveras, and Tinelli showed how to describe enhancements of the Davis-Putnam-Logemann-Loveland algorithm using transition systems, instead of pseudocode. We design a similar framework for three algorithms that generate answer sets for logic programs: smodels, asp-sat with Backtracking, and a newly designed and implemented algorithm sup. This approach to describing answer set solvers makes it easier to prove their correctness, to compare them, and to design new systems.
Color Correction for Video, Second Edition: Using Desktop Tools to Perfect Your Image (DV Expert Series), 2 edition
Authors: Steve Hullfish, Jaime Fowler
Venue:  (2008)

Use color to improve your storytelling, deliver critical emotional cues, and add impact to you videos. This book shows you how to analyze color correction problems and solve them- whatever NLE or plugin you use. Experienced editors and colorists in their own right, the authors also include the wisdom of top colorists, directors of photography, and color scientists to deliver this insightful and authoritative presentation of the theory and practice of color correction.The book provides technical insight into how to effectively color correct your video, also delving into how color can impact storytelling and deliver critical emotional cues. The new edition also includes 2 new "Quickstart Tutorials", a new chapter on how color impacts storytelling, information on the impact HD has had on the correcting process, and updated application specifications. The companion DVD features new and more robust tutorial media. * Application agnostic, step-by-step instruction for an array of color correcting concepts and solutions * Effectively use color to improve your storytelling, deliver critical emotional cues, and add overall impact to your media* Companion DVD contains tutorial media for hands-on exercises
ViewpointWhy "open source" misses the point of free software
Authors: Richard Stallman
Venue: Communications of the ACM (2009)

Decoding the important differences in terminology, underlying philosophy, and value systems between two similar categories of software.
Robots with emotional intelligence
Authors: Rosalind W. Picard
Venue: Proceedings of the 4th ACM/IEEE international conference on Human robot interaction (2009)

This keynote talk will illustrate a basic set of skills of emotional intelligence, how they are important for robots and agents that interact with people, and how our research at MIT addresses part of the problem of giving robots such skills. One of the most important skills is the ability to perceive and understand expressions of emotion, which I will highlight by demonstrating our latest technologies developed to read joint facial-head movements in real-time and associate these with complex affective-cognitive states, and technologies to read paralinguistic vocal cues from speech. The latter have been made open-source and are available for free. I will also show some non-traditional ways robots might sense and learn about human emotion, and ways they can respond to what they sense that can help or hurt people. I will discuss social and ethical issues these technologies raise. Finally, I will present some new possibilities for robots to both learn from people and help teach skills of emotional intelligence to people, especially to those with nonverbal learning impairments who may want to learn these skills, including many people with diagnoses of autism spectrum disorders such as Aspergers Syndrome.
Exploiting multithreaded architectures to improve the hash join operation
Authors: Layali Rashid, Wessam M. Hassanein, Moustafa A. Hammad
Venue: Proceedings of the 9th workshop on MEmory performance: DEaling with Applications, systems and architecture (2008)

As database management systems gain importance in our everyday life, it is essential to have efficient implementations of important database operations such as the hash join. Improvements in processor architectures including simultaneous multithreaded architectures and Chip Multiprocessors have opened opportunities for taking advantage of the new multithreaded hardware. Recently, several efforts have been done to enhance database performance through architecture-aware data management. In this paper, we present a new architecture-aware hash join (AA_HJ) algorithm for main memory database systems, where all the data resides in memory. AA_HJ relies on sharing critical structures at the cache level, and distributing the load evenly between threads. Our timing results show a performance improvement up to 2.9x for the Intel&reg; Pentium&reg; 4 HT and up to 4.6x on the Intel&reg; Quad Xeon&reg; Dual-Core machine, compared to single-threaded hash join. The L2 load miss rate is reduced by up 82%.
A Flexible Content-based Image Retrieval System with Combined Scene Description Keyword
Venue: Proceedings of the 1996 International Conference on Multimedia Computing and Systems (1996)

In this paper, we propose the image database with fully automated keyword extraction function. Our approach can extract two different conceptual level keywords from images. One is "Conceptual Keyword'', as we call it. Another is ``Scene Description Keyword''. "Conceptual Keyword'' is extracted by image recognition technique using "State Transition Model'', which is a hierarchical model. "Scene Description Keyword'' is extracted by primitive parameters of color segments. And we propose introduction of "Transition Probability'' to raise the retrieval accuracy (precision). Moreover, we evaluate the retrieval accuracy of this image database through a retrieval experiment using about 170 scenery images.
Visualisation du parcours des fichiers attach&eacute;s aux messages &eacute;lectroniques
Authors: Faryel Allouti, Mohamed Nadif, Benoî Otjacques, Le Thi Hoai An
Venue: Proceedings of the 20th International Conference of the Association Francophone d'Interaction Homme-Machine (2008)

This paper dsescribes a prototype tool which visualizes files attached to emails. It is a graphic representation materialized in the form of directed graph. The vertex represents a participant in the conversation and the edge embodies the email. As the files may belong to the same project, we propose to use the clustering based on the mixture approach to determin different classes. A color is associated to each class. The files of the same class are represented by different geometric shapes with degraded color. The geometric shapes are displayed on the edges.
Optimal backpressure routing for wireless networks with multi-receiver diversity
Authors: Michael J. Neely, Rahul Urgaonkar
Venue: Ad Hoc Networks (2009)

We consider the problem of optimal scheduling and routing in an ad-hoc wireless network with multiple traffic streams and time varying channel reliability. Each packet transmission can be overheard by a subset of receiver nodes, with a transmission success probability that may vary from receiver to receiver and may also vary with time. We develop a simple backpressure routing algorithm that maximizes network throughput and expends an average power that can be pushed arbitrarily close to the minimum average power required for network stability, with a corresponding tradeoff in network delay. When channels are orthogonal, the algorithm can be implemented in a distributed manner using only local link error probability information, and supports a ''blind transmission'' mode (where error probabilities are not required) in special cases when the power metric is neglected and when there is only a single destination for all traffic streams. For networks with general inter-channel interference, we present a distributed algorithm with constant-factor optimality guarantees.
A Peer-to-Peer Resources Search Algorithm Based on Small-World Model
Authors: Qian Su, Xuejie Zhang
Venue: Proceedings of the 2009 WRI International Conference on Communications and Mobile Computing - Volume 03 (2009)

Resources search has become a hot research issue in peer-to-peer (P2P) systems. In most unstructured P2P systems with flooding mechanism, with exponential growth of the number of messages, serious network congestion and waste of bandwidth result in low efficiency of resources search. In this paper, we propose an unstructured P2P resources search algorithm based on Small-world model, in which peers perform k-means clustering on local resources separately, and then build a few similar-links between peers who own similar clusters and some random-links between non-similar peers. Experiment results demonstrate that our algorithm can effectively shorten the average searching length and get high success rate.
Improving the Translation from ECTL to SAT
Authors: Andrzej Zbrzezny
Venue: Fundamenta Informaticae (2008)

The objective of this paper is to offer an improvement to the translation from ECTL to SAT introduced in [14] and show that the improvement proposed substantially increases the efficiency of verifying temporal properties using the Bounded Model Checking method. We have implemented our new translation and made preliminary experimental results, which demonstrate the efficiency of the method.
Basics of Galois Connections
Authors: Ferdinand Börner
Venue: Complexity of Constraints: An Overview of Current Research Themes (2008)

We give an overview of basic properties of Galois connections between sets of relations and sets of functions or generalized functions. First we focus on the Galois connections lnv---Pol and lnv---mPol . Then we use these results to provide some tools for the representation of several closure operators on relations as closure operators of some Galois connections.
Parallel scientific computing environment for adaptive optic simulations
Authors: L. Carracciuolo, L. D'Amore, G. Laccetti, A. Murli
Venue: International Journal of Computer Mathematics (2009)

This work is carried out within a research collaboration with the Astronomical Observatory of Arcetri (Florence, Italy) aimed at the development of a parallel version of the adaptive optics simulation software named CAOS (Code for Adaptive Optics System). CAOS is currently used at the Arcetri Observatory to simulate the behaviour of an adaptive optic system, from the atmospheric turbulence corruption to the subsequent adaptive correction made on the wavefronts coming from the astronomical objects onto the pupils of the ground-based telescopes. We describe the computational efforts towards the integration of the CAOS package into a high-performance computing architecture, implementing three different parallelization approaches of a fast fourier transform (FFT)-based CAOS module and discuss the performance using standard performance metrics.
Separation of Foreground Text from Complex Background in Color Document Images
Authors: Nirmala Shivananda, P. Nagabhushan
Venue: Proceedings of the 2009 Seventh International Conference on Advances in Pattern Recognition (2009)

Reading of the foreground text is difficult in documents having multi colored complex background. Automatic foreground text separation in such document images is very much essential for smooth reading of the document contents. In this paper we propose a hybrid approach which combines connected component analysis and an unsupervised thresholding for separation of text from the complex background. The proposed approach identifies the candidate text regions based on edge detection followed by a connected component analysis. Because of background complexity it is also possible that a non text region may be identified as a text region. To overcome this problem we extract texture features of connected components and analyze the feature values. Finally the threshold value for each detected text region is derived automatically from the data of corresponding image region to perform foreground separation. The proposed approach can handle document images with varying background of multiple colors. Also it can handle foreground text of any color, font and size. Experimental results show that the proposed algorithm detects on an average 97.8% of text regions in the source document. Readability of the extracted foreground text is illustrated through OCRing.
A New Multimedia Technology Today, a Standards Challenge for the Future
Authors: Ramesh Jain
Venue: Proceedings of the IEEE International Conference on Multimedia Computing and Systems - Volume 2 (1999)

The Internet only 30 years old this year, has had an enormous effect on the world during these final years of the 20th century. Quickly evolving from simple lines of text in its first dimension; to hyperlinked, textual-graphical multimedia in its second dimension; then to the simulated reality of three-dimensional images. Adding sound, video, and interactivity to these image types, the cyber world seemed to be approaching reality in its look and feel. But, ofcourse, there is still more before we are really able to experience images as if we were in the real place. For one, we need to experience time in space, we need to be able to move about in our 3D world; we need to feel as if we were immersed in and surrounded by this world. Though some may think we are a long way from this immersive reality, the multimedia technology to produce such a world exists today. Early applications have already tiptoed onto the scene. And it is with this fourth dimension we believe we will move into the 21st centuryand beyond. In this Presentation I will introduce you to this technology, explain its components, and tell you how I envision its being standardized and applied to future environments. 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
Inapproximability of survivable networks
Authors: Yuval Lando, Zeev Nutov
Venue: Theoretical Computer Science (2009)

In the Survivable Network Design Problem (SNDP) one seeks to find a minimum cost subgraph that satisfies prescribed node-connectivity requirements. We give a novel approximation ratio preserving reduction from Directed SNDP to Undirected SNDP. Our reduction extends and widely generalizes as well as significantly simplifies the main results of [G. Kortsarz, R. Krauthgamer, J.R. Lee, Hardness of approximation for vertex-connectivity network design problems, SIAM Journal on Computing 33 (3) (2004) 704-720]. Using it, we derive some new hardness of approximation results, as follows. We show that directed and undirected variants of SNDP and of k-Connected Subgraph are equivalent w.r.t. approximation, and that a @r-approximation for Undirected Rooted SNDP implies a @r-approximation for Directed Steiner Tree.
Fourth international workshop on model driven development of advanced user interfaces
Authors: Gerrit Meixner, Daniel Görlich, Kai Breiner, Heinrich Hußmann, Andreas Pleuß, Stefan Sauer, Jan Van den Bergh
Venue: Proceedings of the 13th international conference on Intelligent user interfaces (2009)

Model Driven Development (MDD) is an important para-digm in Software Engineering. In MDD, applications are specified systematically using abstract, platform independent models. The models are then transformed into executable code for different platforms and target devices. Model-driven techniques become ever more prominent in any kind of application, such as multimedia and Web, ubiquitous and automotive applications.