Audio Event Detection using Weakly Labeled Data

Acoustic event detection is essential for content analysis and description of multimedia recordings. The majority of current literature on the topic learns the detectors through fully-supervised techniques employing strongly labeled data. However, the labels available for majority of multimedia data are generally weak and do not provide sufficient detail for such methods to be employed. In this paper we propose a framework for learning acoustic event detectors using only weakly labeled data. We first show that audio event detection using weak labels can be formulated as an Multiple Instance Learning problem. We then suggest two frameworks for solving multiple-instance learning, one based on support vector machines, and the other on neural networks. The proposed methods can help in removing the time consuming and expensive process of manually annotating data to facilitate fully supervised learning. Moreover, it can not only detect events in a recording but can also provide temporal locations of events in the recording. This helps in obtaining a complete description of the recording and is notable since temporal information was never known in the first place in weakly labeled data.Comment: ACM Multimedia 201

Design and evaluation of a personal digital assistant-based alerting service for clinicians

Purpose: This study describes the system architecture and user acceptance of a suite of programs that deliver information about newly updated library resources to clinicians’ personal digital assistants (PDAs). Description: Participants received headlines delivered to their PDAs alerting them to new books, National Guideline Clearinghouse guidelines, Cochrane Reviews, and National Institutes of Health (NIH) Clinical Alerts, as well as updated content in UpToDate, Harrison's Online, Scientific American Medicine, and Clinical Evidence. Participants could request additional information for any of the headlines, and the information was delivered via email during their next synchronization. Participants completed a survey at the conclusion of the study to gauge their opinions about the service. Results/Outcome: Of the 816 headlines delivered to the 16 study participants’ PDAs during the project, Scientific American Medicine generated the highest proportion of headline requests at 35%. Most users of the PDA Alerts software reported that they learned about new medical developments sooner than they otherwise would have, and half reported that they learned about developments that they would not have heard about at all. While some users liked the PDA platform for receiving headlines, it seemed that a Web database that allowed tailored searches and alerts could be configured to satisfy both PDA-oriented and email-oriented users.Includes bibliographical references

Space Telescope and Optical Reverberation Mapping Project. XII. Broad-line Region Modeling of NGC 5548

We present geometric and dynamical modeling of the broad line region (BLR) for the multi-wavelength reverberation mapping campaign focused on NGC 5548 in 2014. The data set includes photometric and spectroscopic monitoring in the optical and ultraviolet, covering the Hβ, C iv, and Lyα broad emission lines. We find an extended disk-like Hβ BLR with a mixture of near-circular and outflowing gas trajectories, while the C iv and Lyα BLRs are much less extended and resemble shell-like structures. There is clear radial structure in the BLR, with C iv and Lyα emission arising at smaller radii than the Hβ emission. Using the three lines, we make three independent black hole mass measurements, all of which are consistent. Combining these results gives a joint inference of . We examine the effect of using the V band instead of the UV continuum light curve on the results and find a size difference that is consistent with the measured UV–optical time lag, but the other structural and kinematic parameters remain unchanged, suggesting that the V band is a suitable proxy for the ionizing continuum when exploring the BLR structure and kinematics. Finally, we compare the Hβ results to similar models of data obtained in 2008 when the active galactic nucleus was at a lower luminosity state. We find that the size of the emitting region increased during this time period, but the geometry and black hole mass remained unchanged, which confirms that the BLR kinematics suitably gauge the gravitational field of the central black hole

Pressure Modulator Radiometer (PMR) tests

The pressure modulator technique was evaluated for monitoring pollutant gases in the Earth's atmosphere of altitude levels corresponding to the mid and lower troposphere. Using an experimental set up and a 110 cm sample cell, pressure modulator output signals resulting from a range of gas concentrations in the sample cell were examined. Then a 20 cm sample cell was modified so that trace gas properties in the atmosphere could be simulated in the laboratory. These gas properties were measured using an infrared sensor

The Ursinus Weekly, February 20, 1961

Campus Chest drive is begun today at noon • Annual Color Day to be on Feb. 23 • Summer job directory now in Placement Office • Mr. J. A. Thomson to address history tea • Mr. Jones to talk on John Donne at Canterbury meeting Feb. 27 • St. Andrew\u27s to select candidate for scholarship • Leeds and Fischer discuss Frost • Women requested to wear hats to church on Sunday • Dr. Miller wins Fulbright award for stay in India • Betty Heale to be on magazine board • Bloodmobile to be at U.C. on Feb. 21 at 12:30 • Habgood is Lorelei king; Announce new Whitians • Dr. Robert Bickle addresses pre-med • Mr. Jordania to play original piano pieces • Spring Festival queen to be elected on Wed. • Editorial: Peace Corps • Implications of the new science • Seven weeks abroad • Chapel commentary • Letter from a French girl • If you ask me • Five Ursinus alumnae place on AA hockey team • Swimming team wins meet with Bryn Mawr • Intramural corner • Thinclads disappointing at Inquirer meets • Bears smash Del., lose to Hopkins • Bears win fifth game with defeat of Garnets • Walt Dryfoos leads MAC league scorers • Greek gleanings • Four U.C. students hear Phila.\u27s mayor Dilworth • Lutheran Club holds pre-Lenten retreat • Newman Club to hold meeting tonight at 6:30 in girls\u27 day study • Letters to the editor • Mr. Bailey to hold trampoline classes • Mumbauer, Clemens to show slides at Spanish Club meetinghttps://digitalcommons.ursinus.edu/weekly/1333/thumbnail.jp

Ursinus College Alumni Journal, February 1951

President\u27s page • Five sons and daughters of alumni members of 1954 class at Ursinus • Dr. Miller to present 10-week course on TV • Lt. Governor L. H. Wood takes Harrisburg office • 16 receive degrees on Founders\u27 Day • Dr. Jessie Greaves named distinguished daughter • York alumni show Noss film as scholarship benefit • American Magazine spotlights Isabelle Barr • Ursinus ivy at Cedar Crest • Glassmoyer resigns as journal editor • Memorable Old Timers\u27 Day enjoyed by many • New York association elects Rev. N. Alexander • Ursinus Women\u27s Club holds annual luncheon • Arvanitis to do research on heart-lung machine • Alumni plan fund benefit at Ursinus • Dr. G. E. Pfahler named to alumni presidency • Alumni prominent in church pageant • 1950-51 committees are appointed • Bomberger leads Ursinus through its early years • Sports review: Bruin Grapplers face fair season; Seedersmen off to high scoring start in 1950-51 campaign; Soccer team winless, ties alumni 2-2; Hockeyites take five, Vadner on all-college; Eleven tabs two wins, frosh play big role • Necrology • News about ourselveshttps://digitalcommons.ursinus.edu/alumnijournal/1040/thumbnail.jp

Ursinus College Alumni Journal, May 1951

President\u27s page • Lloyd H. Wood, \u2725, inaugurated as Pennsylvania\u27s Lt. Governor • Dr. H. A. Cochran, of Temple, to address graduating class • Ursinus to be honored by Newcomen Society • Russian DP starts new life at Ursinus • Artist to glorify queen in May Day pageant • Catalogue re-designed • Program completed for 1951 Alumni Day • Dinner held for seniors • Scholarship fund benefit proceeds total $1700 • Marjorie Trayes becomes Rutger\u27s Dean on July 1 • Crossley first reported casualty from Ursinus • Rhea D. Johnson retires • Laucks antique collection near museum proportions • Mack Trucks, Inc., head sets great 1950 record • First Ursinus faculty, courses are selected • Sports review: New candidates display promise as varsity nine posts 3-6 record; Undefeated in 3 years, Helfferich takes MAC award; Slim holdover track squad greets Gurzynski; Alumnae continue active in Philadelphia area sports; Court team winds up successful season with 10 wins in 18 games; Dr. Miller selected as new Ursinus tennis coach; Mermaids drop seven, veteran \u2752 squad sure; Top sports record goes to girls\u27 basketball team; Ursinus\u27 1910 team and the same players today • Obituary • News about ourselveshttps://digitalcommons.ursinus.edu/alumnijournal/1041/thumbnail.jp

Ursinus College Alumni Journal, September 1951

President\u27s page • Dr. Harry Cochran addresses graduating class • Newcomen Society honors Ursinus • Robert Herber awarded Fulbright scholarship • Dr. Prentis to speak on Founders Day • Faculty changes 1951-52 • New stack level houses 17,000 volumes • Ilse Helfferich weds • Former student bequeaths Ursinus College $77,000 • Hood honors Mr. Noss • New Ursinus directors • Statistical report for twentieth reunion • Alumni Day resume • Class of \u2726 celebrates twenty-fifth reunion • Memorial scholarship drive totals$60,000 • 58 attend York County banquet • Alumni Athletic Association reorganized • Ursinus Women\u27s Club • Mrs. Pancoast named alumni secretary • October 27th Old Timers\u27 Day • Alumni win awards at theological seminary • Douthett kept busy despite retirement • Richard Wentzel winner in newspaper writing contest • Bunny wins again • York alumni take part in dedication ceremonies • Teru Hayashi develops an artificial muscle • Necrology • Sports review: Young replaces Landes on Bears coaching staff; Coeds end softball season undefeated; Football prospects for \u2751 season appear bright; Women\u27s tennis team wins five, loses three; Varsity baseball closes with 7 wins, 10 losses; New track records set; Miller\u27s netmen close season with 7-2 record • Student life at Ursinus in the late 1800s • News about ourselveshttps://digitalcommons.ursinus.edu/alumnijournal/1042/thumbnail.jp