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An eye-tracking study of information usage in Web searchWeb search services are among the most heavily used applications on the World Wide Web. Perhaps because search is used in such a huge variety of tasks and contexts, the user interface must strike a careful balance to meet all user needs. We describe a study that used eye tracking methodologies to explore the effects of changes in the presentation of search results. We found that adding information to the contextual snippet significantly improved performance for informational tasks but degraded performance for navigational tasks. We discuss possible reasons for this difference and the design implications for the better presentation of search results.
As an increasingly large fraction of human knowledge migrates to the World Wide Web and other information systems, finding useful information is simultaneously more important and much more difficult. In 2000, Jansen and Pooch estimated that 1 in 28 Web pages that users viewed were search results pages [11]. Today, search is among the most important activities that Web users engage in. Beyond the Web, search is a central activity for users of corporate intranets, specialized databases (from shopping to Medline), and increasingly for personal archives of documents and email.
Given the importance and ubiquity of search, it is remarkable how similar almost all search interfaces are. Users typically type a few words into a query box and receive a rank-ordered list of search results comprising document titles, brief descriptions of the objects and some metadata about the results. On the Web, such interfaces are extremely effective, considering the incrediblyPrudent Way Universal Notebook AC Power Adapter User’s Manual Model: PWI-AC90, PWI-AC120We sincerely hope that you find this quality Adapter provides you with many years of good service.
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TestDriven.NET is a unit testing add-in for Visual Studio. It was developed for a number of years under the name NUnitAddIn. It supports multiple unit testing frameworks including NUnit, MbUnit, csUnit and MS Team System and is compatible with all versions of Visual Studio .NET. It is available in free and (in the future)professional versions. Installing
TestDriven.NET can be installed using an administrator or limited user account. By default it will install for just the current user. Because limited users don't have write access to the 'Program Files' folder, a limited user installation will install files in user's 'Application DataTestDriven.NET' folder. An administrator installation will install files in the 'Program FilesTestDriven.NET' folder. These defaults can be changed by selecting 'Custom' on the 'Choose Setup Type' page.
TestDriven.NET is packaged with functional versions of the NUnit and MbUnit unit testing frameworks. It also includes an adaptor for executingNetwork Effects and MicrosoftThe economic theory of network effects has received a great deal of sustained attention, as it appears to capture some of the most important features of modern high tech industries. The positive implications of the theory are important for understanding the structure of those industries, especially over time. They include positive feedback in the decision rules of individual actors, indeterminacy of equilibrium, lock-in to particular network standards, first-mover advantages or barriers to entry, high inertia for established standards but high volatility for nascent ones, and strategic competition that is intense in the period of establishing a network standard, then largely absent after lock-in.
This is not the simplest body of implications to test, for two reasons. As the theory involves strong elements of positive feedback and the resulting coordination, econometric testing faces severe difficulties associated with distinguishing the behavior of different actors. Another critical implication of the theory, multiple equilibria and the resulting indeterminacy, poses very difficult problems for the empirical scholar of attempting to observe what didn‘t happen.
This paper tests the theory by looking at business documents from the Microsoft antitrust case. While the documents are public because attorneys thought they would be useful in the policy context of a trial, my use is entirely positive, not normative. The unique perspective offered by internal documents gives us an opportunity to examine the relationship between the theory and the marketplace in several ways. Microsoft is a very analytical firm, and thinks of itself as involved in complex strategic games involving manyInstall Nvidia and ATI Video Drivers on openSUSE PDF ReviewATI/Nvidia installation guide for openSUSE 10.2 Let’s say you have chosen openSUSE 10.2 as your default Linux distribution and now you need to install your video card’s driver, be it either Nvidia or ATI. This guide will teach you the easiest ways to achieve that. Nvidia Installation We first need to install the official openSUSE Nvidia repository. Open up a console and type the following: [CODE=0]rpm –import ftp://download.nvidia.com/novell/repodata/repomd.xml.key [CODE=1] Now let’s add the YUM repository, by opening YaST and clicking on “Software” and then on the “Installation Source”.
In the new window which will appear, click the Add button, then select the “Specify URL…” option, hit Next and paste there the following line:
Download Install Nvidia and ATI Video Drivers on openSUSE PDF ReviewApple Clamshell iBook Repair ManualThis Apple Clamshell iBook Repair Manual contains the Battery Removal Keyboard Ram Replacement Trackpad and Ribbon Cable Assembly CD / DVD Drive Replacement Modem Replacement Display Replacement Stiffener Assembly Battery Board Replacement Hard Drive Replacement DC-IN Board Replacement Logic Board Replacement Using a large flathead screwdriver, turn the two battery locks to the left to unlock the battery compartment. Remove the battery cover. Grasp the plastic piece from the battery, and pull up to remove the battery.
Download pdf Apple Clamshell iBook Repair ManualPhotoshop Elements Quick GuidePhotoshop Elements is an image editing program you can use to prepare images for your story.
Photoshop allows you to resize and crop photos, fix flaws in the image, and composite images together into a collage.
Step 1 – Opening Program and Getting Photos
After opening up the software you will see the “welcome” window. Select “Browse for File.” This will open up the Browser window. Use the window in the upper left to navigate to your “rough images” folder. You should now see your rough images in the Browser.
Step 2 – Selecting a Photo to Edit
To edit a photo, double click on it. A new window will open. This is the Photoshop Elements Editor workspace. Many of the tools you’ll be using are on the far left, in a vertical strip called the Tool Palette. You can find out each tool’s name/function by hovering over the tool with your mouse.
Step 3 - Cropping
This is what a typical image might look like if you scanned a bunch of pictures at once. Your first job is to separate these photos, edit them, and then save each one as an individual file. To do this, use the rectangular marquee tool, shown below.
Download pdf Photoshop Elements Quick GuideBMW Tightening Torques Manual PDFExtract from company standard BMW N 600 02.0 The maximum tightening torques are: Only applicable to shaft screws with metric standard and fine threads acc. to DIN 13, sheet 13 and nuts with height of 0,8 x d acc. to DIN 934 and only for a µ total = 0.125 (screws phosphatized, screws untreated or galvanized. Lubrication condition: unlubricated and also oiled). For cadmium-plated screws or nuts (µ total = 0.08 to 0.09) the tightening torque with screw material at the same level of utilization ca. must be 30% less than shown in the table.
The values specified in this table apply to all screw connections conforming to the aforementioned conditions. Not applicable when using a different surface or lubricant condition on the thread, or if the height of the nut differs. Not applicable to necked-down bolts, self-tapping screw connections or to connections between parts made of different materials. Important! Maintaining specified tightening torques is vital for performing repair work to a professional standard. This presupposes that the torque wrenches required for this are subjected to a regular inspection. Approved torque testing equipment is listed in the catalogue of workshop equipment planning documents.
Download BMW Tightening Torques Manual PDFMoujou 1.0 Reference and Tutorial Guide ManualMoujou is a plug-in for Maya which allows you to access the powerful automatic tracking of boujou from within the Maya workspace. It is very easy to use – just load your image sequence and click on the ‘Track it’ button. The results will be delivered straight into your current scene using standard Maya components and there is no need for any further refinements before the track is useable. Image-based masks can be imported to guide the tracking. They can be used to hide areas of the image that may be causing problems, or to help track moving objects such as cars or trucks. Any black and white image can be used as a mask. Camera path smoothing is also available to fix any spikes or noise in the camera path.
Moujou does not have the extensive tool set of the standalone versions of boujou, but it uses the same fast and accurate feature tracker and the same robust camera solver as its standalone brothers. If tracking your shot requires the manual intervention tools of bullet or boujou three then you can export your work as a boujou project file and continue working on it in either of these packages. moujou can only track fixed focal length shots.
Download Moujou 1.0 Reference and Tutorial Guide ManualHow to view T4A Maps on Google Earth.Com pdf]In a few minutes, Tracks4Africa will begin making its way through a
]few little wires to a great number of data centers around the world…
]it will be viewed by many millions individuals on every corner of the
]Earth.
]Your work will stand side by side with some of the greatest maps of
]all time, The Rumsey Historical Maps, side by side with some the most
]prestigious and well know societies of all time, The National
]Geographic Society, and side by side with cutting edge and innovative
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]
]Thank you Wouter, thank you Johann, and thanks to all the dreamers and
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November 10, 2006
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