%ADASS_PROCEEDINGS_FORM%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%
% SAMPLE1.TEX -- ADASS XII (2002) ASP Conference Proceedings sample
% paper with minimal markup. Based on the sample from ADASS XI (01).
%
% This is a simple example.  If you want to see a more comprehensive
% sample paper,  take a look at sample2.tex.
%
% Much of the input will be enclosed by braces (i.e., { }).  The
% percent sign, "%", denotes the start of a comment; text after it
% will be ignored by LaTeX.  You might also notice in some of the
% examples below the use of "\ " after a period; this prevents LaTeX
% from interpreting the period as the end of a sentence and putting
% extra space after it.   
% 
% You should check your paper by processing it with LaTeX.  For
% details about how to run LaTeX as well as how to print out the User
% Guide, consult the README file.  
%
% If you do not have access to the LaTeX software or a laser printer
% at your site, you can still prepare your paper following the
% instructions in the User Guide.  In such cases, the editors will
% process the file and make any necessary editorial adjustments.
% 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% 
\documentclass[11pt,twoside]{article}  % Leave intact
\usepackage{adassconf}

% If you have the old LaTeX 2.09, and not the current LaTeX2e, comment
% out the \documentclass and \usepackage lines above and uncomment
% the following:

%\documentstyle[11pt,twoside,adassconf]{article}

\begin{document}   % Leave intact

%-----------------------------------------------------------------------
%			    Paper ID Code
%-----------------------------------------------------------------------
% Enter the proper paper identification code.  The ID code for your
% paper is the session number associated with your presentation as
% published in the official conference proceedings.  You can
% find this number locating your abstract in the printed proceedings
% that you received at the meeting or on-line at the conference web
% site; the ID code is the letter/number sequence proceeding the title 
% of your presentation.  
%
% This will not appear in your paper; however, it allows different
% papers in the proceedings to cross-reference each other.  Note that
% you should only have one \paperID, and it should not include a
% trailing period.
%

\paperID{P3-26}
%%%% ID=P3-26

%-----------------------------------------------------------------------
%		            Paper Title 
%-----------------------------------------------------------------------
% Enter the title of the paper.
%
% EXAMPLE: \title{A Breakthrough in Astronomical Software Development}
%
% If your title is so long as to fill the page header when you print it,
% then please supply a short form as a \titlemark.
%
% EXAMPLE:
%  \title{Rapid Development for Distributed Computing, with Implications
%         for the Virtual Observatory}
%  \titlemark{Rapid Development for Distributed Computing}
%

\title{VOPlot: A Toolkit for Scientific Discovery using VOTables}
\titlemark{VOPlot: A Toolkit for scientific discovery using VOTables}

%-----------------------------------------------------------------------
%		          Authors of Paper
%-----------------------------------------------------------------------
% Enter the authors followed by their affiliations.  The \author and
% \affil commands may appear multiple times as necessary.  List each
% author by giving the first name or initials first followed by the
% last name.  Authors with the same affiliations should grouped
% together. 
%
% Try to limit the front matter to no more than three \author
% commands.  Group authors with the same affiliations.  Too many
% \author commands fills the first page of the paper with little
% actual text.

\author{Sonali Kale, T.M.\ Vijayaraman, P.R.\ Krishnan, Amey Navelkar, Hrishikesh Hegde, K.D.\ Balaji }
\affil{Persistent Systems Private Limited, Pune, India\altaffilmark{1}
       }
\author{Ajit Kembhavi, Pallavi Kulkarni}
\affil{Inter University Center for Astronomy and Astrophysics, Pune, India\altaffilmark{2}
       }
%\author{Daffy Duck\altaffilmark{1}}
%\affil{Astronomy Department, Disney University, Peoria, MA 11111}

\altaffiltext{1}{Persistent Systems Pvt. Ltd., located in Pune, India, is an 12-year old, 700-person, software development company.  Persistent specializes in developing data infrastructure software. Persistent has developed data management components such as bit-vector indexes, query optimizers, ETL Tools, OLAP Tools etc. It has worked for companies like Microsoft, Hewlett-Packard, Agilent Technologies, Informix, i2 Technologies, Engage Technologies etc. - http://www.persistent.co.in}
\altaffiltext{2}{The Inter-University Centre for Astronomy and Astrophysics (IUCAA) is located in Pune, India. It has a vigorous programme of research in theoretical astrophysics, observational astronomy and instrumentation development. IUCAA has a well-developed data center and hosts mirror sites of various astronomical databases and scientific literature archives - http://www.iucaa.ernet.in/.}


%-----------------------------------------------------------------------
%			 Contact Information
%-----------------------------------------------------------------------
% This information will not appear in the paper but will be used by
% the editors in case you need to be contacted concerning your
% submission.  Enter your name as the contact along with your email
% address.

\contact{Sonali Kale}
\email{sonali_kale@persistent.co.in}

%-----------------------------------------------------------------------
%		      Author Index Specification
%-----------------------------------------------------------------------
% Specify how each author name should appear in the author index.  The 
% \paindex{ } should be used to indicate the primary author, and the
% \aindex for all other co-authors.  You MUST use the following
% syntax: 
%
% SYNTAX:  \aindex{LASTNAME, F. M.}
% 
% where F is the first initial and M is the second initial (if
% used).  This guarantees that authors that appear in multiple papers
% will appear only once in the author index.  
%
% EXAMPLE: \paindex{Crabtree, D.}
%          \aindex{Manset, N.}
%          \aindex{Veillet, C.}
%
% NOTE: this information is also used to build the author list that
% appears in the table of contents.  Authors will be listed in the order
% of the \paindex and \aindex commmands.
%

\paindex{Kale, S.}
\aindex{Vijayaraman, T. M.}     
\aindex{Kembhavi, A.}     
\aindex{Krishnan, P. R.}     
\aindex{Navelkar, A.}     
\aindex{Hegde, H.}     
\aindex{Kulkarni, P.}     
\aindex{Balaji, K. D.}     

%-----------------------------------------------------------------------
%                     Author list for page header
%-----------------------------------------------------------------------
% Please supply a list of author last names for the page header. in
% one of these formats:
%
% EXAMPLES:
% \authormark{LASTNAME}
% \authormark{LASTNAME1 \& LASTNAME2}
% \authormark{LASTNAME1, LASTNAME2, ... \& LASTNAMEn}
% \authormark{LASTNAME et al.}
%
% Use the "et al." form in the case of seven or more authors, or if
% the preferred form is too long to fit in the header.

\authormark{Kale, Vijayaraman, Khembavi et al.}

%-----------------------------------------------------------------------
%			Subject Index keywords
%-----------------------------------------------------------------------
% Enter up to 6 keywords describing your paper.  These will NOT be
% printed as part of your paper; however, they will be used to
% generate the subject index for the proceedings.  There is no
% standard list; however, you can consult the indices for past ADASS
% proceedings (http://adass.org/adass/proceedings/).

\keywords{Virtual Observatory: plot, Virtual Observatory: table, VizieR, Aladin, Virtual Observatory: India, IUCAA}

%-----------------------------------------------------------------------
%			       Abstract
%-----------------------------------------------------------------------
% Type abstract in the space below.  Consult the User Guide and Latex
% Information file for a list of supported macros (e.g. for typesetting 
% special symbols). Do not leave a blank line between \begin{abstract} 
% and the start of your text.

\begin{abstract}          % Leave intact
Graphical interfaces are extremely useful tools in data mining as well
as statistical analysis of huge datasets. We describe a graphical
visualization tool, VOPlot, which can be interfaced with data in
VOTable format to form a valuable aid in scientific discovery. The
VOPlot toolkit, developed by us, is available as either a stand-alone
tool or as a web-based applet fully integrated with the VizieR catalogue
service. The VOPlot tool is very versatile, and can be used to perform
a number of graphical tasks and simple statistical estimations.
VOPlot can produce output in postscript and VOTable formats and can be
easily integrated with packages that require visualization support. It
has full two-way communication with Aladin, and has been adopted in
packages like LEDAS.  We describe VOPlot and recent enhancements to
it, and demonstrate its usefulness in science applications. This paper
provides a brief description of VOPlot. The toolkit was developed by
Persistent Systems$^{1}$ and IUCAA$^{2}$ in collaboration with CDS, Strasbourg
as part of the Virtual Observatory India initiative.
\end{abstract}

%-----------------------------------------------------------------------
%			      Main Body
%-----------------------------------------------------------------------
% Place the text for the main body of the paper here.  You should use
% the \section command to label the various sections; use of
% \subsection is optional.  Significant words in section titles should
% be capitalized.  Sections and subsections will be numbered
% automatically. 

\section{VOTable Basics}
The VOTable format is an XML (Extensible Markup Language) standard for exchange of tabular data, with particular emphasis on astronomical tables. A table is an unordered set of rows, each of a uniform format, as specified in the table metadata. Each row is a sequence of table cells, and each of these is either a primitive data type, or an array of such primitives. VOPlot uses data in TABLEDATA section for visualization.


\section{VOPlot}
The motivation behind the VOPlot was to provide a web-based visualization tool for astronomical data in VOTable format. A typical astronomer downloads catalogue data on his personal computer (PC) and uses various plotting tools for visualization. This method is inconvenient and hence the requirement of a web-based tool that can plot data online. VOPlot is a java applet that can be integrated with any web-based catalogue service that generates data in VOTable format.

The stand-alone version of VOPlot can be started using the command 'java -jar voplot.jar' on the command prompt. Java Runtime Environment (JRE) 1.3 or later is required to be installed on user's computer. The web-based version on VizieR can be started by querying a catalogue and selecting the output format as VOPlot. This requires a java plugin version 1.3.1 or later installed on the user's computer.


\section{Salient features of VOPlot}

\subsection{Scatter Plots}
\begin{figure}[h]
\epsscale{.60}
\plotone{P3-26_f1.ps}
\caption{Sample Scatter Plot} \label{P3-26:T1.10-fig-1}
\end{figure}
VOPlot can plot columns against each other as a scatter plot or a connected plot. The user can select columns to be plotted from list of columns displayed. The plots can be overlaid for comparison. Overlaying is simultaneously viewing multiple plots with similar range on the same axes system. The user can plot data points on a log scale by setting the option appropriately using the "Log" checkbox. User can plot error bars by specifying upper and lower error limits for the Y-column. Plot properties such as X and Y axis labels, title of the plot, color and marker style can be changed dynamically from the 'Plot Properties' dialog.

VOPlot supports reading from multiple VOTable documents. Data from multiple VOTables can be overlaid for comparison. Data distribution can be viewed in the form of histograms.  
%embed figure 1 - Sample scatter plot

\subsection{Create data subsets}
Users can create new data subsets by defining filters on them. A condition with relational operators and logical operators can be used to create new data subsets. For example data subsets can be created using expression '$\$1 + log(\$2) > 12'$ which can be used for plotting
\subsection{Statistical Analysis}
\begin{figure}[h]
\epsscale{.70}
\plotone{P3-26_f2.ps}
\caption{Sample screen-shot showing statistical functions} \label{P3-26:T1.10-fig-2}
\end{figure}
VOPlot supports uni-variate and multivariate functions such as range, mean, variance, standard deviation, skew, kurtosis, linear correlation, significance, rank correlation and partial correlation. 

%embed figure 3 (?? 3 comes before 2)

\subsection{Interoperation with Aladin}
%\begin{figure}
%\epsscale{.80}
%\plotone{voplot_aladin3.eps}
%\caption{Screen shot demonstrating interoperation with Aladin} \label{P3-26:T1.10-fig-3}
%\end{figure}
VOPlot has been successfully integrated with Aladin. Aladin, developed at CDS, is an interactive software sky atlas allowing the user to visualize digitized images of any part of the sky. An application of this synergy is a simultaneous visualization of some graph in VOPlot together with a representation as a sky plot in Aladin. Selecting some region in the graph highlights the corresponding points in the sky plot and vice versa.


%\begin{figure}[h]
% \caption{Screen shot demonstrating interoperation with Aladin}
% \end{figure}
%embed figure 2 (?? 3 comes before 2)

\subsection{Relevant websites}

\begin{enumerate}
\item Aladin - http://aladin.u-strasbg.fr/aladin.gml
\item CDS - Centre de Données astronomiques de Strasbourg \\ (http://cdsweb.u-strasbg.fr/)
\item IUCAA - Inter University Center for Astronomy and Astrophysics \\ (http://iucaa.ernet.in)
\item LEDAS - LEicester Database and Archive Service \\ (http://ledas-www.star.le.ac.uk/)
\item Persistent Systems Private Limited \\ http://www.persistent.co.in
\item Vizier Catalogue Service \\ http://urania.iucaa.ernet.in/
\item VOTable - http://vizier.u-strasbg.fr/doc/VOTable/
 \end{enumerate}


% You can also add an acknowledgments section as indicated below.

%\acknowledgments



%-----------------------------------------------------------------------
%			      References
%-----------------------------------------------------------------------
% List your references below within the reference environment
% (i.e. between the \begin{references} and \end{references} tags).
% Each new reference should begin with a \reference command which sets
% up the proper indentation.  Observe the following order when listing
% bibliographical information for each reference:  author name(s),
% publication year, journal name, volume, and page number for
% articles.  Note that many journal names are available as macros; see
% the User Guide for a listing "macro-ized" journals.   
%
% Note the following are some of the tricks that can be used:
%
%   o  \& is used to format an ampersand symbol (&).
%   o  \'e puts an accent grave over the letter e.  See the User Guide
%      for details on formatting special characters.  
%   o  "\ " after a period prevents LaTeX from interpreting the period 
%      as an end of a sentence.
%   o  \aj is a macro that expands to "Astron. J."  See the User Guide
%      for a full list of journal macros
%   o  \adassvii is a macro that expands to the full title, editor,
%      and publishing information for the ADASS VII conference
%      proceedings.  Such macros are defined for ADASS conferences I
%      through IX.
%   o  When referencing a paper in the current volume, use the
%      \adassix and \paperref macros.  The argument to \paperref is
%      the paper ID code for the paper you are referencing.  See the 
%      note in the "Paper ID Code" section above for details on how to 
%      determine the paper ID code for the paper you reference.  
%
%\begin{references}
%\reference Persistent Systems Private Limited, India - Persistent Systems Pvt. Ltd., located in Pune, India, is an 12-year old, 700-person, software development company.  Persistent specializes in developing data infrastructure software. Persistent has developed data management components such as bit-vector indexes, query optimizers, ETL Tools, OLAP Tools etc. It has worked for companies like Microsoft, Hewlett-Packard, Agilent Technologies, Informix, i2 Technologies, Engage Technologies etc. 
%URL - http://www.persistent.co.in

%Inter University Center for Astronomy and Astrophysics - The Inter-University Centre for Astronomy and Astrophysics (IUCAA) is located in Pune, India. It has a vigorous programme of research in theoretical astrophysics, observational astronomy and instrumentation development. IUCAA has a well-developed data center and hosts mirror sites of various astronomical databases and scientific literature archives. 
%URL - http://www.iucaa.ernet.in/.
%\reference 

%\reference Berlioz, H.\ 1837, Grande Messe du Morts (Paris: Durand)
%\reference Headroom, M.\ 1988, \apj, 278, 356
%\reference Pig. P.\ 2000, \adassix, 386
%\reference Pig. P.\ 2003, \adassxii, \paperref{D23}
%\end{references}

% Do not place any material after the references section

\end{document}  % Leave intact
