An Evaluation of Link Neighborhood Lexical Signatures to Rediscover Missing Web Pages

For discovering the new URI of a missing web page, lexical signatures, which consist of a small number of words chosen to represent the "aboutness" of a page, have been previously proposed. However, prior methods relied on computing the lexical signature before the page was lost, or using cached or archived versions of the page to calculate a lexical signature. We demonstrate a system of constructing a lexical signature for a page from its link neighborhood, that is the "backlinks", or pages that link to the missing page. After testing various methods, we show that one can construct a lexical signature for a missing web page using only ten backlink pages. Further, we show that only the first level of backlinks are useful in this effort. The text that the backlinks use to point to the missing page is used as input for the creation of a four-word lexical signature. That lexical signature is shown to successfully find the target URI in over half of the test cases.Comment: 24 pages, 13 figures, 8 tables, technical repor

Southwest Research Institute assistance to NASA in biomedical areas of the technology utilization program Cumulative quarterly report, 1 Oct. 1967 - 31 Mar. 1968

Quarterly operations summary of center for selective dissemination of biomedical information within Technology Utilization progra

Single Photon Source with Individualized Single Photon Certifications

As currently implemented, single-photon sources cannot be made to produce single photons with high probability, while simultaneously suppressing the probability of yielding two or more photons. Because of this, single photon sources cannot really produce single photons on demand. We describe a multiplexed system that allows the probabilities of producing one and more photons to be adjusted independently, enabling a much better approximation of a source of single photons on demand. The scheme uses a heralded photon source based on parametric downconversion, but by effectively breaking the trigger detector area into multiple regions, we are able to extract more information about a heralded photon than is possible with a conventional arrangement. This scheme allows photons to be produced along with a quantitative ``certification'' that they are single photons. Some of the single-photon certifications can be significantly better than what is possible with conventional downconversion sources (using a unified trigger detector region), as well as being better than faint laser sources. With such a source of more tightly certified single photons, it should be possible to improve the maximum secure bit rate possible over a quantum cryptographic link. We present an analysis of the relative merits of this method over the conventional arrangement.Comment: 11 pages, 5 figures, SPIE Free-Space Laser Communication and Laser Imaging II. To appear in the proceeding of SPIE Free-Space Laser Communication and Laser Imaging II, vol 482

INVESTIGATION OF THE LOW-SUBSONIC STABILITY AND CONTROL CHARACTERISTICS OF A 0.34 -SCALE FREE-FLYING MODEL OF A MODIFIED HALF-CONE REENTRY VEHICLE

Low subsonic stability and control of a 0.34-scale free flying model of a half cone reentry vehicl

Southwest Research Institute assistance to NASA in biomedical areas of the technology utilization program Quarterly progress report, 1 Jul. - 30 Sep. 1968

Southwest Research Institute activites in NASA technology utilization program for biomedical use, 1 Jul. - 30 Sep. 196

Southwest Research Institute assistance to NASA in biomedical areas of the technology utilization program Cumulative quarterly report, 1 Apr. - 30 Jun. 1968

Biomedical applications of NASA science and technolog

Borne the Battle; Creative Writing For Military Trauma And Personal Trauma

Research shows that - creative and expressive can be used as a therapeutic tool to address military and personal trauma. As a Combat Veteran and Cleveland Literacy Advocate -I have used poetry as a means of personal healing and community development. As a Poet -I use my art as weapon for personal and community change. The following manuscript provides a critical introduction and poetry - which speaks to literary technique, inspiration and purpose

Direct Determination of Thomson Coefficients in Single Crystal Zinc Rods

The Thomson coefficients for single crystal zinc as a function of the orientation of the principal crystal axis are being directly determined by Nettleton\u27s method. For a rod with an orientation angle of approximately 45° the coefficient shows a rise with increasing temperature over the range 50-250° C

MONITORING THE MOVEMENT OF ST. CATHERINE’S POINT LIGHTHOUSE USING THE UNITED KINGDOM’s ACTIVE GLOBAL POSITIONING SYSTEM NETWORK

This report provides a study of the statistical data extracted from the United Kingdom’s National Global Positioning System (GPS) Network, specifically Station SCP1 at St. Catherine’s Point Lighthouse on the Isle of Wight. The entire network consists of 30 continuously operating GPS reference stations located throughout Great Britain. These stations are permanently installed, precisely coordinated active GPS stations. The station at Saint Catherine’s Point on the Isle of Wight appears to have shifted from its original position. This was attributed to the extensive rainfall in the autumn and winter of 2000, which could have caused soil erosion at the base of the lighthouse. This perceived movement has impacted the initial coordinates of the site. The receivers used in the network are designed to provide users with their relative location to within a few centimetres. All stations record dual-frequency GPS data 24 hours a day at a 15 second epoch rate. The receiver at Saint Catherine’s Point (SCP1), a Trimble 4000 SSI with a Model 33429.00 antenna, is affixed upon a lighthouse. Between September 2000 and March 2001 the lighthouse moved in a southern direction and produced GPS residuals outside of the accepted 95% confidence level. There is a strong correlation between the amount of rainfall experienced at Saint Catherine’s Point and the rate of change of movement south of the lighthouse. The results are based upon the GPS data provided by the Ordnance Survey and the data gathered in the field by the author. The analysis indicates St. Catherine’s Lighthouse has moved approximately 10 centimetres south over the past seven months. A future cumulative rainfall total equivalent to that of the autumn of 2000 could potentially produce an additional southward shift of 2 centimetres