<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1409-2433</journal-id>
<journal-title><![CDATA[Revista de Matemática Teoría y Aplicaciones]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mat]]></abbrev-journal-title>
<issn>1409-2433</issn>
<publisher>
<publisher-name><![CDATA[Centro de Investigaciones en Matemática Pura y Aplicada (CIMPA) y Escuela de Matemática, San José, Costa Rica.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1409-24332013000100003</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[One-side oscillation strategic approach]]></article-title>
<article-title xml:lang="es"><![CDATA[Enfoque estratégico de oscilación unilateral]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Beausoleil]]></surname>
<given-names><![CDATA[Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valcárcel Miró]]></surname>
<given-names><![CDATA[Yasser]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Instituto de Cibernética, Matemática y Física Departamento de Matemática Interdisciplinaria ]]></institution>
<addr-line><![CDATA[ Habana]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Misma dirección  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>01</month>
<year>2013</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>01</month>
<year>2013</year>
</pub-date>
<volume>20</volume>
<numero>1</numero>
<fpage>35</fpage>
<lpage>48</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1409-24332013000100003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1409-24332013000100003&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1409-24332013000100003&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[This paper reports an approach developed to find a good quality solution for a generalized assignment problem with application to the Dimensional Cutting Problem. The objective at the Cutting Problem is to divide different pools of pieces of the same dimension among different items of available material all having two dimensions, the width and length. The solution is found keeping the largest number of pieces in a single material. Some initial numerical experiences found for the algorithm optimal and suboptimal solutions or instances of more than 500 pieces at a very low computational cost.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[El presente artículo presenta un enfoque desarrollado para encontrar una solución de alta calidad para un problema de asignación generalizado con aplicaciones al Problema de Cortes Dimensionales. El objetivo en el Problema de Cortes es dividir diferentes juegos de piezas de las mismas dimensiones dentro de varios artículos de material disponible, teniendo ambos dos dimensiones: ancho y largo. La solución es tomada manteniendo el mayor número de piezas en un sólo material. Algunas experiencias numéricas encontraron soluciones óptimas y cuasi-óptimas para el algoritmo en no más de 500 piezas con un costo computacional bajo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[heuristics]]></kwd>
<kwd lng="en"><![CDATA[greedy algorithm]]></kwd>
<kwd lng="en"><![CDATA[backtrack algorithm]]></kwd>
<kwd lng="en"><![CDATA[one-dimensional cutting problem]]></kwd>
<kwd lng="es"><![CDATA[Heurísticas]]></kwd>
<kwd lng="es"><![CDATA[algoritmo goloso]]></kwd>
<kwd lng="es"><![CDATA[algoritmo backtrack]]></kwd>
<kwd lng="es"><![CDATA[problema unidimensional de cortes]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <div style="text-align: justify;">     <div style="text-align: center;"><font  style="font-family: verdana; font-weight: bold;" size="4">One-side oscillation strategic approach</font><br style="font-weight: bold;"> <br style="font-weight: bold;"> <font style="font-family: verdana; font-weight: bold;" size="4">Enfoque&nbsp; estrat&eacute;gico&nbsp; de oscilaci&oacute;n unilateral</font>    <br> </div>     <br>     <div style="text-align: center;"><font style="font-family: verdana;"  size="2">Ricardo&nbsp; Beausoleil<sup><a href="#Afiliacionaste">*</a><a  name="Afiliacioncruz"></a>+</sup>, Yasser Valc&aacute;rcel Mir&oacute;<sup><a href="#afiliacioncr">+</a><a  name="Afiliaciona"></a>*</sup></font>    <br> </div> <font style="font-family: verdana;" size="-1">    <br> <a name="Correspondencia2"></a>*<a href="#Correspondencia1">Direcci&oacute;n para correspondencia</a></font>     <br> <hr  style="width: 100%; height: 2px; margin-left: 0px; margin-right: 0px;"><font  style="font-family: verdana; font-weight: bold;" size="3">Abstract</font>    <br>     <br> <font style="font-family: verdana;" size="2">This paper&nbsp; reports an approach&nbsp; developed to find a good quality solution for a generalized assignment problem with application to the <span style="font-style: italic;">Dimensional&nbsp; Cutting Problem</span>.&nbsp; The objective at the <span style="font-style: italic;">Cutting Problem</span> is to divide different pools of pieces of the same dimension&nbsp; among different items of available&nbsp; material all having&nbsp; two dimensions,&nbsp; the width&nbsp; and&nbsp; length.&nbsp;&nbsp; The&nbsp; solution&nbsp; is found&nbsp; keeping&nbsp; the largest&nbsp; number&nbsp; of pieces&nbsp; in&nbsp; a single material.&nbsp;&nbsp; Some initial numerical&nbsp; experiences found for the algorithm optimal and&nbsp; suboptimal solutions or instances of more than 500 pieces at a very low computational cost.</font>    ]]></body>
<body><![CDATA[<br> <br style="font-weight: bold;"> <font style="font-family: verdana;" size="2"><span  style="font-weight: bold;">Keywords:</span> heuristics,&nbsp; greedy&nbsp; algorithm,&nbsp; backtrack&nbsp; algorithm,&nbsp; one-dimensional&nbsp; cutting problem.</font>    <br>     <br> <font style="font-family: verdana; font-weight: bold;" size="3">Resumen</font>    <br>     <br> <font style="font-family: verdana;" size="2">El&nbsp; presente art&iacute;culo presenta un&nbsp; enfoque&nbsp; desarrollado&nbsp; para&nbsp; encontrar una soluci&oacute;n de alta calidad para un problema&nbsp; de asignaci&oacute;n generalizado&nbsp; con aplicaciones al Problema de Cortes Dimensionales. El objetivo en el <span style="font-style: italic;">Problema&nbsp; de Cortes</span>&nbsp; es dividir diferentes juegos de piezas de las mismas dimensiones&nbsp; dentro de varios art&iacute;culos de material&nbsp; disponible,&nbsp; teniendo&nbsp; ambos&nbsp; dos dimensiones:&nbsp;&nbsp; ancho&nbsp; y largo. La soluci&oacute;n&nbsp; es tomada manteniendo&nbsp; el mayor&nbsp; n&uacute;mero&nbsp; de piezas&nbsp; en un s&oacute;lo material. Algunas experiencias&nbsp; num&eacute;ricas encontraron soluciones &oacute;ptimas y cuasi-&oacute;ptimas para&nbsp; el algoritmo en no m&aacute;s de 500 piezas con un costo computacional bajo.</font>    <br> <br style="font-weight: bold;"> <font style="font-family: verdana;" size="2"><span  style="font-weight: bold;">Palabras clave:</span> Heur&iacute;sticas, algoritmo goloso, algoritmo backtrack, problema unidimensional&nbsp; de cortes.</font>    <br> <font style="font-family: verdana;" size="2">&nbsp;     <br> <span style="font-weight: bold;">Mathematics Subject Classification:</span> 97M40, 90C59, 68T20.    <br> </font> <hr  style="width: 100%; height: 2px; margin-left: 0px; margin-right: 0px;"><font  style="font-family: verdana;" size="-1">    <br> Ver contenido disponible en pdf</font><font  style="font-family: verdana; font-weight: bold;" size="3">    ]]></body>
<body><![CDATA[<br>     <br> </font> <hr  style="width: 100%; height: 2px; margin-left: 0px; margin-right: 0px;"><font  style="font-family: verdana; font-weight: bold;" size="3">References</font>    <br>     <!-- ref --><br> <font style="font-family: verdana;" size="2">[1]&nbsp; Beausoleil,&nbsp; R.P.&nbsp; (1997) &#8220;Heuristic algorithm for assignment problem with&nbsp; application in the factory of clothes&#8221;, <span style="font-style: italic;">Proceedings&nbsp; of the&nbsp; 13th ISPE/IEE International Conference on CAD/CAM Robotics and Factories&nbsp; of the Future</span>:&nbsp; 995&#8211;1000.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1939244&pid=S1409-2433201300010000300001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font>    <br>     <!-- ref --><br> <font style="font-family: verdana;" size="2">[2]&nbsp; Colin,&nbsp; R.R.&nbsp; (1993)&nbsp; <span style="font-style: italic;">Modern&nbsp; Heuristic&nbsp; Techniques&nbsp; for&nbsp; Combinatorial Problems</span>.&nbsp; American&nbsp; Halsted&nbsp; Press,&nbsp; John Wiley and&nbsp; Sons Inc.,&nbsp; New York</font>    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1939247&pid=S1409-2433201300010000300002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><br>     <!-- ref --><br> <font style="font-family: verdana;" size="2">[3]&nbsp; Golomb, S.W.; Baumert L.D. (1965) &#8220;Backtrack programming&#8221;, <span style="font-style: italic;">ACM Journal </span><span  style="font-weight: bold;">12</span>:&nbsp; 516&#8211;526.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1939249&pid=S1409-2433201300010000300003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font>    ]]></body>
<body><![CDATA[<br>     <!-- ref --><br> <font style="font-family: verdana;" size="2">[4]&nbsp; Portela, J.M.; Kuzmich,&nbsp; V. (1989) <span style="font-style: italic;">Modelos Econ&oacute;mico-Matem&aacute;ticos</span>, Tomo I. Editorial Pueblo&nbsp; y Educaci&oacute;n.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1939252&pid=S1409-2433201300010000300004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font>    <br>     <!-- ref --><br> <font style="font-family: verdana;" size="2">[5]&nbsp; Simmons, D.M. (1969) &#8220;One-dimensional space allocation: an ordering algorithm&#8221;, <span style="font-style: italic;">ORSA Journal</span> <span style="font-weight: bold;">17</span>(5):&nbsp; 812&#8211;826.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1939255&pid=S1409-2433201300010000300005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font>    <br>     <br> <font size="-1"><span style="font-family: verdana;"><a  name="Correspondencia1"></a><a href="#Correspondencia2">*</a>Correspondencia a:</span></font>    <br> <font style="font-family: verdana;" size="2">Ricardo&nbsp; Beausoleil. </font><font  style="font-family: verdana;" size="2">Departamento&nbsp;&nbsp;&nbsp; de&nbsp;&nbsp;&nbsp; Matem&aacute;tica&nbsp;&nbsp;&nbsp; Interdisciplinaria,&nbsp;&nbsp; &nbsp;Instituto&nbsp;&nbsp; de&nbsp;&nbsp;&nbsp; Cibern&eacute;tica, Matem&aacute;tica y F&iacute;sica.&nbsp; Calle E # 551, Vedado,&nbsp; Ciudad&nbsp; de La Habana, CP&nbsp; 10900 Cuba. Fax:&nbsp; +(537) 832 4085.&nbsp; E-Mail:&nbsp; rbeausol@icimaf.cu</font>    <br> <font style="font-family: verdana;" size="2">Yasser Valc&aacute;rcel Mir&oacute;. </font><font style="font-family: verdana;" size="2">Misma&nbsp; direcci&oacute;n que/Same&nbsp; address as:&nbsp; E-Mail:&nbsp; yasserv@icimaf.cu    ]]></body>
<body><![CDATA[<br> </font><font style="font-family: verdana;" size="2"><a  name="Afiliacionaste"></a><a href="#Afiliacioncruz">*</a>Departamento&nbsp;&nbsp;&nbsp; de&nbsp;&nbsp;&nbsp; Matem&aacute;tica&nbsp;&nbsp;&nbsp; Interdisciplinaria,&nbsp;&nbsp; &nbsp;Instituto&nbsp;&nbsp; de&nbsp;&nbsp;&nbsp; Cibern&eacute;tica, Matem&aacute;tica y F&iacute;sica.&nbsp; Calle E # 551, Vedado,&nbsp; Ciudad&nbsp; de La Habana, CP&nbsp; 10900 Cuba. Fax:&nbsp; +(537) 832 4085.&nbsp; E-Mail:&nbsp; rbeausol@icimaf.cu</font>    <br> <font style="font-family: verdana;" size="2"><a name="afiliacioncr"></a><a  href="#Afiliaciona">+</a> Misma&nbsp; direcci&oacute;n que/Same&nbsp; address as:&nbsp; E-Mail:&nbsp; yasserv@icimaf.cu</font>    <br> <font style="font-family: verdana;" size="2"><span  style="font-weight: bold;"></span></font> <hr  style="width: 100%; height: 2px; margin-left: 0px; margin-right: 0px;">     <div style="text-align: center;"><font style="font-family: verdana;"  size="2"><span style="font-weight: bold;">Received: 17/Sep/2011; Revised: 3/Oct/2012; Accepted:&nbsp; 27/Nov/2012</span></font>    <br> <font style="font-family: verdana;" size="2"></font></div> </div>      ]]></body><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Beausoleil]]></surname>
<given-names><![CDATA[R.P.]]></given-names>
</name>
</person-group>
<source><![CDATA[&#8220;Heuristic algorithm for assignment problem with application in the factory of clothes&#8221;]]></source>
<year>1997</year>
<page-range>995-1000</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Colin]]></surname>
<given-names><![CDATA[R.R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Modern Heuristic Techniques for Combinatorial Problems]]></source>
<year>1993</year>
<publisher-loc><![CDATA[^eNew York New York]]></publisher-loc>
<publisher-name><![CDATA[American Halsted PressJohn Wiley and Sons Inc.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Golomb]]></surname>
<given-names><![CDATA[S.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Baumert]]></surname>
<given-names><![CDATA[L.D.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[&#8220;Backtrack programming&#8221;]]></article-title>
<source><![CDATA[ACM Journal]]></source>
<year>1965</year>
<volume>12</volume>
<page-range>516-526</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Portela]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Kuzmich]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Modelos Económico-Matemáticos]]></source>
<year>1989</year>
<volume>I</volume>
<publisher-name><![CDATA[Editorial Pueblo y Educación]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Simmons]]></surname>
<given-names><![CDATA[D.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[One-dimensional space allocation: an ordering algorithm&#8221;]]></article-title>
<source><![CDATA[ORSA Journal]]></source>
<year>1969</year>
<volume>17</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>812-826</page-range></nlm-citation>
</ref>
</ref-list>
</back>
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