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|
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<?xml-stylesheet type="text/css" href="../_sisu/css/dom.css"?>
<!-- Document processing information:
* Generated by: SiSU 0.59.0 of 2007w38/0 (2007-09-23)
* Ruby version: ruby 1.8.6 (2007-06-07 patchlevel 36) [i486-linux]
*
* Last Generated on: Sun Sep 23 04:12:11 +0100 2007
* SiSU http://www.jus.uio.no/sisu
-->
<document>
<head>
<header>
<meta>Title:</meta>
<title>
SiSU - SiSU information Structuring Universe / Structured information, Serialized Units - FAQ - Frequently Asked/Answered Questions
</title>
</header>
<header>
<meta>Creator:</meta>
<creator>
Ralph Amissah
</creator>
</header>
<header>
<meta>Rights:</meta>
<rights>
Copyright (C) Ralph Amissah 2007, part of SiSU documentation, License GPL 3
</rights>
</header>
<header>
<meta>Type:</meta>
<type>
information
</type>
</header>
<header>
<meta>Subject:</meta>
<subject>
ebook, epublishing, electronic book, electronic publishing, electronic document, electronic citation, data structure, citation systems, search
</subject>
</header>
<header>
<meta>Date created:</meta>
<date_created>
2006-09-06
</date_created>
</header>
<header>
<meta>Date available:</meta>
<date_available>
2006-09-06
</date_available>
</header>
<header>
<meta>Date issued:</meta>
<date_issued>
2006-09-06
</date_issued>
</header>
<header>
<meta>Date modified:</meta>
<date_modified>
2007-09-16
</date_modified>
</header>
<header>
<meta>Date:</meta>
<date>
2007-09-16
</date>
</header>
</head>
<body>
<heading1>
<heading>
<object id="1">
<ocn>1</ocn>
<text>SiSU - SiSU information Structuring Universe / Structured information, Serialized Units - FAQ - Frequently Asked/Answered Questions,<br /> Ralph Amissah</text>
</object>
</heading>
<contents1>
<heading>
<object id="2">
<ocn>2</ocn>
<nametag>faq</nametag>
<text>1. FAQ - Frequently Asked/Answered Questions </text>
</object>
</heading>
<content>
</content>
<contents2>
<heading>
<object id="3">
<ocn>3</ocn>
<nametag>1.1</nametag>
<text>1.1 Why are urls produced with the -v (and -u) flag that point to a web server on port 8081?</text>
</object>
</heading>
<content>
<object id="4">
<ocn>4</ocn>
<text class="norm">Try the following rune:</text>
</object>
<object id="5">
<ocn>5</ocn>
<text class="indent_bullet"> sisu -W</text>
</object>
<object id="6">
<ocn>6</ocn>
<text class="norm">This should start the ruby webserver. It should be done after having produced some output as it scans the output directory for what to serve.</text>
</object>
</content>
</contents2>
<contents2>
<heading>
<object id="7">
<ocn>7</ocn>
<nametag>1.2</nametag>
<text>1.2 I cannot find my output, where is it?</text>
</object>
</heading>
<content>
<object id="8">
<ocn>8</ocn>
<text class="norm">The following should provide help on output paths:</text>
</object>
<object id="9">
<ocn>9</ocn>
<text class="indent_bullet"> sisu --help env</text>
</object>
<object id="10">
<ocn>10</ocn>
<text class="indent_bullet"> sisu -V [same as the previous command]</text>
</object>
<object id="11">
<ocn>11</ocn>
<text class="indent_bullet"> sisu --help directory</text>
</object>
<object id="12">
<ocn>12</ocn>
<text class="indent_bullet"> sisu --help path</text>
</object>
<object id="13">
<ocn>13</ocn>
<text class="indent_bullet"> sisu -U [filename]</text>
</object>
<object id="14">
<ocn>14</ocn>
<text class="indent_bullet"> man sisu</text>
</object>
</content>
</contents2>
<contents2>
<heading>
<object id="15">
<ocn>15</ocn>
<nametag>1.3</nametag>
<text>1.3 I do not get any pdf output, why?</text>
</object>
</heading>
<content>
<object id="16">
<ocn>16</ocn>
<text class="norm"><b>SiSU</b> produces LaTeX and pdflatex is run against that to generate pdf files.</text>
</object>
<object id="17">
<ocn>17</ocn>
<text class="norm">If you use <b>Debian</b> the following will install the required dependencies</text>
</object>
<object id="18">
<ocn>18</ocn>
<text class="indent_bullet"> aptitude install sisu-pdf</text>
</object>
<object id="19">
<ocn>19</ocn>
<text class="norm">the following packages are required: tetex-bin, tetex-extra, latex-ucs</text>
</object>
</content>
</contents2>
<contents2>
<heading>
<object id="20">
<ocn>20</ocn>
<nametag>1.4</nametag>
<text>1.4 Where is the latex (or some other interim) output?</text>
</object>
</heading>
<content>
<object id="21">
<ocn>21</ocn>
<text class="norm">Try adding -M (for maintenance) to your command flags, e.g.:</text>
</object>
<object id="22">
<ocn>22</ocn>
<text class="indent_bullet"> sisu -HpMv [filename]</text>
</object>
<object id="23">
<ocn>23</ocn>
<text class="norm">this should result in the interim processing output being retained, and information being provided on where to find it.</text>
</object>
<object id="24">
<ocn>24</ocn>
<text class="indent_bullet"> sisu --help directory</text>
</object>
<object id="25">
<ocn>25</ocn>
<text class="indent_bullet"> sisu --help path</text>
</object>
<object id="26">
<ocn>26</ocn>
<text class="norm">should also provide some relevant information as to where it is placed.</text>
</object>
</content>
</contents2>
<contents2>
<heading>
<object id="27">
<ocn>27</ocn>
<nametag>1.5</nametag>
<text>1.5 Why isn't SiSU markup XML</text>
</object>
</heading>
<content>
<object id="28">
<ocn>28</ocn>
<text class="norm">I worked with text and (though I find XML immensely valuable) disliked noise ... better to sidestep the question and say:</text>
</object>
<object id="29">
<ocn>29</ocn>
<text class="norm"><b>SiSU</b> currently "understands" three XML input representations - or more accurately, converts from three forms of XML to native <b>SiSU</b> markup for processing. The three types correspond to SAX (structure described), DOM (structure embedded, whole document must be read before structure is correctly discernable) and node based (a tree) forms of XML document structure representation. Problem is I use them very seldom and check that all is as it should be with them seldom, so I would not be surprised if something breaks there, but as far as I know they are working. I will check and add an XML markup help page before the next release. There already is a bit of information in the man page under the title <b>SiSU</b> VERSION CONVERSION</text>
</object>
<object id="30">
<ocn>30</ocn>
<text class="indent1"> sisu --to-sax [filename/wildcard]</text>
</object>
<object id="31">
<ocn>31</ocn>
<text class="indent1"> sisu --to-dom [filename/wildcard]</text>
</object>
<object id="32">
<ocn>32</ocn>
<text class="indent1"> sisu --to-node [filename/wildcard]</text>
</object>
<object id="33">
<ocn>33</ocn>
<text class="norm">The XML should be well formed... must check, but lacks sensible headers. Suggestions welcome as to what to make of them. [For the present time I am satisfied that I can convert (both ways) between 3 forms of XML representation and <b>SiSU</b> markup].</text>
</object>
<object id="34">
<ocn>34</ocn>
<text class="indent1"> sisu --from-xml2sst [filename/wildcard]</text>
</object>
</content>
</contents2>
<contents2>
<heading>
<object id="35">
<ocn>35</ocn>
<nametag>1.6</nametag>
<text>1.6 LaTeX claims to be a document preparation system for high-quality typesetting. Can the same be said about SiSU?</text>
</object>
</heading>
<content>
<object id="36">
<ocn>36</ocn>
<text class="norm"><b>SiSU</b> is not really about type-setting.</text>
</object>
<object id="37">
<ocn>37</ocn>
<text class="norm">LaTeX is the ultimate computer instruction type-setting language for paper based publication.</text>
</object>
<object id="38">
<ocn>38</ocn>
<text class="norm">LaTeX is able to control just about everything that happens on page and pixel, position letters kerning, space variation between characters, words, paragraphs etc. formula.</text>
</object>
<object id="39">
<ocn>39</ocn>
<text class="norm"><b>SiSU</b> is not really about type-setting at all. It is about a lightweight markup instruction that provides enough information for an abstraction of the documents structure and objects, from which different forms of representation of the document can be generated.</text>
</object>
<object id="40">
<ocn>40</ocn>
<text class="norm"><b>SiSU</b> with very little markup instruction is able to produce relatively high quality pdf by virtue of being able to generate usable default LaTeX; it produces "quality" html by generating the html directly; likewise it populates an SQL database in a useful way with the document in object sized chunks and its meta-data. But <b>SiSU</b> works on an abstraction of the document's structure and content and custom builds suitable uniform output. The html for browser viewing and pdf for paper viewing/publishing are rather different things with different needs for layout - as indeed is what is needed to store information in a database in searchable objects.</text>
</object>
<object id="41">
<ocn>41</ocn>
<text class="norm">The pdfs or html produced for example by open office based on open document format and other office/word processor suits usually attempt to have similar looking outputs - your document rendered in html looks much the same, or in pdf... sisu is less this way, it seeks to have a starting point with as little information about appearance as possible, and to come up with the best possible appearance for each output that can be derived based on this minimal information.</text>
</object>
<object id="42">
<ocn>42</ocn>
<text class="norm">Where there are large document sets, it provides consistency in appearance in each output format for the documents.</text>
</object>
<object id="43">
<ocn>43</ocn>
<text class="norm">The excuse for going this way is, it is a waste of time to think much about appearance when working on substantive content, it is the substantive content that is relevant, not the way it looks beyond the basic informational tags - and yet you want to be able to take advantage of as many useful different ways of representing documents as are available, and for various types of output to to be/look as good as it can for each medium/format in which it is presented, (with different mediums having different focuses) and <b>SiSU</b> tries to achieve this from minimal markup.</text>
</object>
</content>
</contents2>
<contents2>
<heading>
<object id="44">
<ocn>44</ocn>
<nametag>1.7</nametag>
<text>1.7 How do I create GIN or GiST index in Postgresql for use in SiSU</text>
</object>
</heading>
<content>
<object id="45">
<ocn>45</ocn>
<text class="norm">This at present needs to be done "manually" and it is probably necessary to alter the sample search form. The following is a helpful response from one of the contributors of GiN to Postgresql Oleg Bartunov 2006-12-06:</text>
</object>
<object id="46">
<ocn>46</ocn>
<text class="norm">"I have tsearch2 slides which introduces tsearch2 <<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:type="simple" xlink:href="http://www.sai.msu.su/~megera/wiki/tsearch2slides">http://www.sai.msu.su/~megera/wiki/tsearch2slides</link>></text>
</object>
<object id="47">
<ocn>47</ocn>
<text class="norm">FTS in PostgreSQL is provided by tsearch2, which should works without any indices (GiST or GIN) ! Indices provide performance, not functionality.</text>
</object>
<object id="48">
<ocn>48</ocn>
<text class="norm">In your example I'd do ( simple way, just for demo):</text>
</object>
<object id="49">
<ocn>49</ocn>
<text class="norm"><b>0.</b> compile, install tsearch2 and load tsearch2 into your database</text>
</object>
<object id="50">
<ocn>50</ocn>
<text class="indent1"> cd contrib/tsearch2; make&&make&&install&&make installcheck; psql DB < tsearch2.sql</text>
</object>
<object id="51">
<ocn>51</ocn>
<text class="norm"><b>1.</b> Add column fts, which holds tsvector</text>
</object>
<object id="52">
<ocn>52</ocn>
<text class="indent1"> alter table documents add column fts tsvector;</text>
</object>
<object id="53">
<ocn>53</ocn>
<text class="norm"><b>2.</b> Fill fts column</text>
</object>
<object id="54">
<ocn>54</ocn>
<text class="indent1"> update document set fts = to_tsvector(clean);</text>
</object>
<object id="55">
<ocn>55</ocn>
<text class="norm"><b>3.</b> create index - just for performance !</text>
</object>
<object id="56">
<ocn>56</ocn>
<text class="indent1"> create index fts_gin_idx on document using gin(fts);</text>
</object>
<object id="57">
<ocn>57</ocn>
<text class="norm"><b>4.</b> Run vacuum</text>
</object>
<object id="58">
<ocn>58</ocn>
<text class="indent1"> vacuum analyze document;</text>
</object>
<object id="59">
<ocn>59</ocn>
<text class="norm">That's all.</text>
</object>
<object id="60">
<ocn>60</ocn>
<text class="norm">Now you can search:</text>
</object>
<object id="61">
<ocn>61</ocn>
<text class="norm">select lid, metadata_tid, rank_cd(fts, q,2)as rank from document, plainto_tsquery('markup syntax') q where q @@ fts order by rank desc limit 10;</text>
</object>
</content>
</contents2>
<contents2>
<heading>
<object id="62">
<ocn>62</ocn>
<nametag>1.8</nametag>
<text>1.8 Where is version 1.0?</text>
</object>
</heading>
<content>
<object id="63">
<ocn>63</ocn>
<text class="norm"><b>SiSU</b> works pretty well as it is supposed to. Version 1.0 will have the current markup, and directory structure. At this point it is largely a matter of choice as to when the name change is made.</text>
</object>
<object id="64">
<ocn>64</ocn>
<text class="norm">The feature set for html,<endnote><number>1</number><note>html w3c compliance has been largely met.</note></endnote> LaTeX/pdf and opendocument is in place. XML, and plaintext are in order.</text>
</object>
<object id="65">
<ocn>65</ocn>
<text class="norm">html and LaTeX/pdf may be regarded as reference copy outputs</text>
</object>
<object id="66">
<ocn>66</ocn>
<text class="norm">With regard to the populating of sql databases (postgresql and sqlite), there is a bit to be done.</text>
</object>
<object id="67">
<ocn>67</ocn>
<text class="norm">We are still almost there.</text>
</object>
</content>
</contents2>
</contents1>
<contents1>
<heading>
<object id="0">
<ocn>0</ocn>
<nametag>endnotes</nametag>
<text>Endnotes</text>
</object>
</heading>
<content>
</content>
</contents1>
</heading1>
</body>
</document>
|
