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1 Introduction

1.1 Motivation for MinifactorybS{v�ági�m}mtxjmhàgi�a{v}7pq�7�ági�)��y_gi�a���mc�rs�m�,�apq�ájmgi�mrk{atMgic|{'��lfgi�m�qrs�m�ogitS��lm{'�)�m���K{vcMpiy¤jmc�{a�vrst�{i�U�apq�¨ÿjmhk{ ã��m{vhs{v�a��c�p�ÿ �á{a��lfgi�mrs��gihK}m{É��rs�v{at�c|{��)�mrkc|{v}ork����p�}fg���� tIt|p��ark{É���,c�g�jmrk}mh��?rs�m�vc|{�git|{vtadE�ºgi�¡��piyX��lm{at�{jmc�p}m�m�É��t8���mt����K{ágit�t|{v���mhs{v}��q{vc�� gi�v�a�mc�g���{vh��q�X�m���Alfg��q{át�lmpqc���j�c�p}m�m�a�Áhkr�yz{v�É���ahk{atvdá�øc|p�}��m�vrs�m�jmc�p}m�m�É��tEÈ~r���l,��lm{vt|{A}�{v�ági�m}mt²c|{��)�mrkc|{vt���lm{S�ági�)��y_gi�a���mc�rs�m��jmc|p��a{vt|t���p¨�mhk{a�m}ogi�qrshkr�����È~rs��logi�v�a��ÿc�gi�É�qd~�E��c�c�{a�¡�Sgit|t�{a���mhs�ohsrk�m{at~gic�{Ark�mgi}m{��)�fg·��{M��p��á{a{a�I��lm{at�{Ác�{��)�mrsc�{a�á{a�)��tvd¤Ã²lm{a�o��g�öi{���pq�¡��l�t��pAt�{É�|ÿ���j���g�c�{Ilfgic�}���pÁ�áp}mrsyê�Ápq�m�a{Sgit|t�{a���mhk{a}���gi�m},g�c�{Ipiyê��{a�árs�mt������ark{v�¡��hs��gi�a�v�mc�g���{�d� rs��l���lm{hàgic|�q{8jmc�{a�árs�m� jmhkgi�v{a}*pq�*�K{vrs�m���æfc�t�����p,�ágic�ö�{a� �Igi��}ÖÈ~rs��lÖc�g�jmrk}mh�����lfgi���qrk�m�?�?gic|öi{É��jmhkgi�v{Ac�{ ÿ�)�mrkc|{v��{v�¡��t��ágiö)rk�m�x{�git��'jmc�p}m�m�É�ø�áp}mr�æ�gi�mrshkrs���x{vt|t�{v�¡��ràgih°�qÈE{Igic|{²rk�'�m{a{v}�piy���{aÈ9�ági�)��y_gi�É���mc|rk�m���{a��lm�mr��)�m{atvd

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