The effectiveness of a performance-based assistant in an information retrieval environment

1984 ◽  
Author(s):  
Jay Elkerton ◽  
Robert C. Williges
2014 ◽  
Vol 3 (2) ◽  
pp. 89-99 ◽  
Author(s):  
Mohammad Hassan Dianati ◽  
Mohammad Hadi Sadreddini ◽  
Amir Hossein Rasekh ◽  
Seyed Mostafa Fakhrahmad ◽  
Hossein Taghi-Zadeh

Words  stemming  is  one  of  the  important  issues  in  the field  of  natural  language processing  and  information retrieval.  There  are  different  methods  for stemming which are mostly language-dependent. Therefore, these  stemmers are only applicable  to  particular  languages.  Because  of the importance  of  this issue,  in  this paper, the proposed method for stemming is aimed to be language-independent. In the  proposed  stemmer,  a  bilingual  dictionary  is  used and  all  of  the  words  in  the dictionary are firstly clustered. The words’ clustering is based on their structural and semantic similarity. Finally, finding the stem of new coming words is performed by making use of the previously formatted clusters. To evaluate the proposed scheme, words  stemming is  done on both  Persian  and  English  languages.  The encouraging results  indicate  the  good  performance  of  the proposed  method  compared  with  its counterparts.


2015 ◽  
Vol 2015 ◽  
pp. 1-13 ◽  
Author(s):  
Sergio Canazza ◽  
Giovanni De Poli ◽  
Antonio Rodà

In several application contexts in multimedia field (educational, extreme gaming), the interaction with the user requests that system is able to render music in expressive way. The expressiveness is the added value of a performance and is part of the reason that music is interesting to listen. Understanding and modeling expressive content communication is important for many engineering applications in information technology (e.g., Music Information Retrieval, as well as several applications in the affective computing field). In this paper, we present an original approach to modify the expressive content of a performance in a gradual way, applying a smooth morphing among performances with different expressive content in order to adapt the audio expressive character to the user’s desires. The system won the final stage of Rencon 2011. This performance RENdering CONtest is a research project that organizes contests for computer systems generating expressive musical performances.


Author(s):  
Richard E. Hartman ◽  
Roberta S. Hartman ◽  
Peter L. Ramos

We have long felt that some form of electronic information retrieval would be more desirable than conventional photographic methods in a high vacuum electron microscope for various reasons. The most obvious of these is the fact that with electronic data retrieval the major source of gas load is removed from the instrument. An equally important reason is that if any subsequent analysis of the data is to be made, a continuous record on magnetic tape gives a much larger quantity of data and gives it in a form far more satisfactory for subsequent processing.


Author(s):  
Hilton H. Mollenhauer

Many factors (e.g., resolution of microscope, type of tissue, and preparation of sample) affect electron microscopical images and alter the amount of information that can be retrieved from a specimen. Of interest in this report are those factors associated with the evaluation of epoxy embedded tissues. In this context, informational retrieval is dependant, in part, on the ability to “see” sample detail (e.g., contrast) and, in part, on tue quality of sample preservation. Two aspects of this problem will be discussed: 1) epoxy resins and their effect on image contrast, information retrieval, and sample preservation; and 2) the interaction between some stains commonly used for enhancing contrast and information retrieval.


Author(s):  
Fox T. R. ◽  
R. Levi-Setti

At an earlier meeting [1], we discussed information retrieval in the scanning transmission ion microscope (STIM) compared with the electron microscope at the same energy. We treated elastic scattering contrast, using total elastic cross sections; relative damage was estimated from energy loss data. This treatment is valid for “thin” specimens, where the incident particles suffer only single scattering. Since proton cross sections exceed electron cross sections, a given specimen (e.g., 1 μg/cm2 of carbon at 25 keV) may be thin for electrons but “thick” for protons. Therefore, we now extend our previous analysis to include multiple scattering. Our proton results are based on the calculations of Sigmund and Winterbon [2], for 25 keV protons on carbon, using a Thomas-Fermi screened potential with a screening length of 0.0226 nm. The electron results are from Crewe and Groves [3] at 30 keV.


1962 ◽  
Author(s):  
F. H. Rholes ◽  
H. H. Reynolds ◽  
M. E. Grunzke ◽  
D. N. Farrer

Sign in / Sign up

Export Citation Format

Share Document