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Dependency-Based Distributed Intrusion Detection: Distributed network intrusion detection has attracted much attention recently. The main focus in this work is on zero-day, slow-scanning worms, of which no existing signatures are available. End hosts are organized into regions based on network knowledge, which it posits is positively correlated to the dependency structure. Leveraging on this...; Tags: Region, Distributed Network Intrusion Detection, Hidden Markov Model, Intrusion Detection, Network Security, Security, Networking; White papers 2007-12-01

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Modeling Frame-Level Errors in GSM Wireless Channels: This paper compares four different approaches towards modeling frame-level errors in GSM channels. One of these, the Markov-based Trace Analysis model MTA, was developed for the purpose of modeling a GSM channel. The next two, k-th-order Markov models and hidden Markov models HMMs have been widely used to model loss...; Tags: GSM, Modeling, Research & Development, Cellular Phones, Business Operations, Consumer Electronics, Personal Technology; White papers
About Some Applications of Hidden Markov Model in Intrusion Detection Systems: Intrusion Detection Systems IDS protect the computer networks such as a burglar alarm system against unauthorized access. The present paper introduces an approach to anomaly IDS based on Hidden Markov Models. The point is to process the sequences of system calls in order to distinguish the normal traces of system...; Tags: Intrusion Detection System, University Of Rousse, Intrusion Detection, Network Security, Security, Networking; White papers 2006-07-06
An Interleaved HMM/DTW Approach to Robust Time Series Clustering: This paper introduces an approach for model-based sequence clustering that addresses several drawbacks of existing algorithms. The approach uses a combination of Hidden Markov Modeling HMM for sequence estimation and Dynamic Time Warping DTW for hierarchical clustering, with interlocking steps of model selection, estimation and sequence grouping. The paper also...; Tags: Estimation, Algorithm, Clustering, Engineering; White papers 2006-01-27
Sphinx-4: A Flexible Open Source Framework for Speech Recognition: Sphinx-4 is a flexible, modular and pluggable framework to help foster new innovations in the core research of hidden Markov model HMM speech recognition systems. The design of Sphinx-4 is based on patterns that have emerged from the design of past systems as well as new requirements based on areas...; Tags: Open Source, Framework, Sphinx-4, Speech Recognition, Emerging Technologies; White papers 2004-11-01

Refined TCP Performance Evaluation With Simple Modeling: This paper presents analytical results of a TCP Transmission Control Protocol model based on a Markov chain, refining the previous works on performance evaluation of one bulk transfer TCP flow among exogenous traffic. While most of these works are mainly focused on the mean throughput evaluation, this model allows with...; Tags: TCP, Modeling, Tcp/Ip, Networking; White papers 2007-01-01
Performance Analysis of the IEEE 802.11 MAC and Physical Layer Protocol: This paper presents an analytical model that accounts for the positions of stations with respect to the Access Point AP while evaluating the performance of 802.11 MAC layer. The work discussed in this paper is based on the Bianchi's model where the performance of 802.11 MAC layer is computed using...; Tags: IEEE 802.11, MAC, Performance, Computer Science, Access Point, Wireless LANs, Performance Management, Wireless, Wi-Fi, Human Resources, Workforce Management; White papers 2005-03-08
Performance Evaluation of GPRS/EDGE Networks: A Novel Discrete-Time Markov Model: The focus of this paper is on a simple yet important objective: to provide simple and accurate models for GPRS/EDGE radio engineering. An Erlang-like law is developed based on a discrete-time Markovian model that captures the detailed behavior of the radio allocator, when a finite number of users are performing...; Tags: Performance, Network, GPRS, Formula, Radio, Performance Evaluation, EDGE, Advertising & Promotion, Performance Management, Marketing, Human Resources, Workforce Management; White papers
A Comparative Study of Energy Minimization Methods for Markov Random Fields: One of the most exciting advances in early vision has been the development of efficient energy minimization algorithms. Many early vision tasks require labeling each pixel with some quantity such as depth or texture. While many such problems can be elegantly expressed in the language of Markov Random Fields (MRF's),...; Tags: Algorithm, Vision, Springer Science+Business Media, Engineering, Strategy, Management; White papers 2006-03-03
Use ROI Analysis for Business Software Investments: As they must do with any major investment, finance and technology leaders must develop a Return-On-Investment ROI model to justify software purchases. In many cases, organizations find it difficult to identify the indirect benefits and costs associated with software implementation. A number of factors may make it difficult for an...; Tags: Software, Business Software, Investment, Benefit, ROI, Roi/Tco, Tools & Techniques, Finance, Managerial Accounting, Management; White papers 2007-12-01
Performance Modeling and QoS Evaluation of MAC/RLC Layer in GSM/GPRS Networks: A continuous time Markov chain model is used in this paper to analyze the GSM/GPRS MAC/RLC layer function and compare the performance of three different channel allocation algorithms. Using simulation, the analytical model is verified. The results show that both the data source characteristics such as degree of burstiness and...; Tags: Data Source, QoS, Performance, Network, GPRS, Allocation, GSM, University Of California, Cellular Phones, Consumer Electronics, Personal Technology; White papers
BrowseRank: Letting Web Users Vote for Page Importance: This paper proposes a new method for computing page importance, referred to as BrowseRank. The conventional approach to compute page importance is to exploit the link graph of the web and to build a model based on that graph. For instance, PageRank is such an algorithm, which employs a discrete-time...; Tags: User Behavior, Importance, Web, Channel Management, Marketing; White papers 2008-07-24
Reconstructing Chemical Reaction Networks: Data Mining Meets System Identification: This paper presents an approach to reconstructing chemical reaction networks from time series measurements of the concentrations of the molecules involved. The solution strategy combines techniques from numerical sensitivity analysis and probabilistic graphical models. By modeling a chemical re-action system as a Markov network undirected graphical model, the paper shows...; Tags: Network, Topology, Data Mining, Association For Computing Machinery, Networking; White papers 2008-08-27
Recognition of Eyes-Free Handwriting Input for Pen and Touch Interfaces: Continuous handwriting input using the finger on small devices such as PDAs and mobile phones is difficult if not impossible. Also, handwriting input has always required significant attention from the user during the process of writing. This paper describes the challenges from the perspective of recognizing eyes-free handwriting input and...; Tags: Handwriting, PDAs, Advertising & Promotion, Handhelds, Cellular Phones, Hardware, Marketing, Consumer Electronics, Personal Technology; White papers 2008-05-21
GMER (zip): GMER is an application that detects and removes rootkits. It scans for: hidden processes, hidden threads, hidden modules, hidden services, hidden files, hidden Alternate Data Streams, hidden registry keys, drivers hooking SSDT, drivers hooking IDT, drivers hooking IRP calls and inline hooks. GMER also allows to monitor the following system...; Tags: Driver, GMER, Rootkits, Tcp/Ip, Network Technology, Networking, Security, Spyware, Adware & Malware; Software downloads 2007-08-01
Excel VBA to hide a column & unhide it: I have the following code to enable a hidden columnG to be unhidden, should a certain subcategory in a previous columnE be chosen. I took that from an online example. However what I am trying to achieve without success is the following: I would like columnG automatically to be...; Tags: Column, ElseIf Target.Column, False ElseIf Target.Column, fhu@..., G, Hidden, Microsoft Excel, software, Target.Value; Q&A 2005-07-01
An Efficient Admission Control for IEEE 802.11 Networks Based on Throughput Analyses of (Un)saturated Channel: This paper presents a novel analytical model and an efficient admission control algorithm for IEEE 802.11 DCF access mechanism. In contrast to the previous approaches that only analyzed the saturated status of IEEE 802.11 networks, both saturated and unsaturated states of network are analyzed and the impacts of error-frame rate...; Tags: IEEE 802.11, Admission, Network, IEEE, Wireless LANs, Wi-Fi, Engineering, Wireless; White papers 2005-12-07
Prevent hidden text from printing in Word: I've never tried this beforeHas anyone else?YesAnd it works. Try it yourself, nothing difficult about it.It Does WorkI tried it and it is neat - everyone should try it!Working with Hidden textYou can also format text as hidden by selecting the text then using Format, Font and checking the...; Tags: DougOfCNET, Hidden Text, Microsoft Word, PREVENT, printing, windows; Discussion threads 2005-04-21
HideWin (zip): Hidden process that enables 3 hotkeys to hide/restore hidden windows. CTRL+ALT+H will hide a window, CTRL+ALT+S will unhide a single hidden window, starting with the last window hidden, moving towards the first window hidden with each successive press, and CTRL+ALT+A to unhide all windows hidden with HideWin.; Tags: Window, Construction; Software downloads 2006-04-03
Hidden files and folders: I am using a Windows XP SP2 machine and cannot view hidden files and folders, even when i select a "Show hidden files and folders" radio, and apply the changes, once i close the folder options dialog it and activate the Folder Options, the activated radio will be "Do not...; Tags: Advertising & Promotion, pbaloyi@...; Discussion threads 2007-09-25

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