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	<title>Studio LGS™</title>
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	<description>Studio LGS™</description>
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	<pubDate>Mon, 23 Nov 2009 15:31:48 GMT</pubDate>
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		<title><![CDATA[ LGS' 雜說 5 - Self Evolving Computer Virus ]]> </title>
		<link>http://lstudio.egloos.com/2761478</link>
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		<description>
			<![CDATA[ 
  <p>유전자 알고리즘(GA:Genetic Algorithm)으로 컴퓨터 바이러스를 진화 시키면 어떻게 될까?<br>대부분 치사유전자 때문에 죽어 버리겠지만 매우 극소수가 살아 남아서 <br>정말 진화가 진행된다면 빠르게 변종을 만들어 내는 virus에&nbsp;인간들은 대응할 수 없겠지..<br>fitness function을 어떻게 주어야 할지 고민이다.<br>'괴물을 만들고 말았어' 라며 눈물을 흘릴지도...<br>전 세계가 마비될 수도 있다구!!</p>			 ]]> 
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		<comments>http://lstudio.egloos.com/2761478#comments</comments>
		<pubDate>Mon, 23 Nov 2009 15:31:48 GMT</pubDate>
		<dc:creator>Studio LGS</dc:creator>
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	<item>
		<title><![CDATA[ Edheads - Virtual Knee Surgery ]]> </title>
		<link>http://lstudio.egloos.com/2759282</link>
		<guid>http://lstudio.egloos.com/2759282</guid>
		<description>
			<![CDATA[ 
  <div style="TEXT-ALIGN: center"><div style="text-align:center"><img class="image_mid" border="0" onmouseover="this.style.cursor='pointer'" alt="" src="http://pds15.egloos.com/pds/200911/22/24/e0076624_4b082bc869b14.png" width="500" height="351.602023609" onclick="Control.Modal.openDialog(this, event, 'http://pds15.egloos.com/pds/200911/22/24/e0076624_4b082bc869b14.png');" /></div><a href="http://www.edheads.org/activities/knee/knee1/index.htm">http://www.edheads.org/activities/knee/knee1/index.htm</a><br></div><br><div style="TEXT-ALIGN: left">재밌습니다. ^^<br><a href="http://www.edheads.org/">http://www.edheads.org/</a>&nbsp;에가시면 뇌수술, 고관절 수술.. 등을 해볼 수 있네요</div><br/><br/>tag : <a href="/tag/flashgame" rel="tag">flashgame</a>,&nbsp;<a href="/tag/vitual" rel="tag">vitual</a>,&nbsp;<a href="/tag/knee" rel="tag">knee</a>,&nbsp;<a href="/tag/surgery" rel="tag">surgery</a>			 ]]> 
		</description>
		<category>flashgame</category>
		<category>vitual</category>
		<category>knee</category>
		<category>surgery</category>

		<comments>http://lstudio.egloos.com/2759282#comments</comments>
		<pubDate>Sat, 21 Nov 2009 18:13:32 GMT</pubDate>
		<dc:creator>Studio LGS</dc:creator>
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	<item>
		<title><![CDATA[ Heavenly Days - Yui Aragaki ]]> </title>
		<link>http://lstudio.egloos.com/2735716</link>
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  <center><embed src="http://pds16.egloos.com/pds/200911/03/24/heavenlydays.wma"></center><br />
하악~ 하악~<br />
이런 類의  목소리가 너무 좋아~<br/><br/>tag : <a href="/tag/heavenly" rel="tag">heavenly</a>,&nbsp;<a href="/tag/day" rel="tag">day</a>,&nbsp;<a href="/tag/yui" rel="tag">yui</a>,&nbsp;<a href="/tag/aragaki" rel="tag">aragaki</a>			 ]]> 
		</description>
		<category>Music</category>
		<category>heavenly</category>
		<category>day</category>
		<category>yui</category>
		<category>aragaki</category>

		<comments>http://lstudio.egloos.com/2735716#comments</comments>
		<pubDate>Tue, 03 Nov 2009 06:59:25 GMT</pubDate>
		<dc:creator>Studio LGS</dc:creator>
	</item>
	<item>
		<title><![CDATA[ PETMAN - Boston Dynamics ]]> </title>
		<link>http://lstudio.egloos.com/2733405</link>
		<guid>http://lstudio.egloos.com/2733405</guid>
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			<![CDATA[ 
  <embed height="420" type="application/x-shockwave-flash" width="520" src="http://www.youtube.com/v/67CUudkjEG4&amp;hl=ko&amp;ap=%2526fmt%3D18" allowscriptaccess="always" allowfullscreen="true"></embed><br />
<br />
놀라울 따름이군요 -_-<br />
BigDog 때도 놀라웠는데 ...<br />
역시 아메리카는 무섭습니다..<br/><br/>tag : <a href="/tag/Robot" rel="tag">Robot</a>,&nbsp;<a href="/tag/biped" rel="tag">biped</a>,&nbsp;<a href="/tag/petman" rel="tag">petman</a>,&nbsp;<a href="/tag/dynamics" rel="tag">dynamics</a>			 ]]> 
		</description>
		<category>Robot</category>
		<category>biped</category>
		<category>petman</category>
		<category>dynamics</category>

		<comments>http://lstudio.egloos.com/2733405#comments</comments>
		<pubDate>Sun, 01 Nov 2009 06:35:08 GMT</pubDate>
		<dc:creator>Studio LGS</dc:creator>
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	<item>
		<title><![CDATA[ CUDA with MATLAB 후기 ]]> </title>
		<link>http://lstudio.egloos.com/2727910</link>
		<guid>http://lstudio.egloos.com/2727910</guid>
		<description>
			<![CDATA[ 
  <p>목적<br>&nbsp;&nbsp; MATLAB Simulation 성능 향상을 위한 CUDA 사용<br><br>시스템&nbsp; 사양<br>&nbsp;&nbsp; CPU : P8700<br>&nbsp;&nbsp; RAM : 4GB<br>&nbsp;&nbsp; Graphic Card : GT 130M<br>&nbsp;&nbsp; Graphic Memory : 1GB<br><br>준비사항<br>&nbsp;&nbsp; 4GB RAM을 모두 활용하기 위해 Windows7&nbsp;Professional K 64bit 설치<br>&nbsp;&nbsp;&nbsp;MATLAB 2009b 64bit version 설치<br>&nbsp;&nbsp; CUDA Driver for Notebook 2.3 Windows Vista 64bit용 beta&nbsp;version 설치<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (Windows7용은 아직 미출시 현재 2009.10.27)<br>&nbsp;&nbsp; CUDA Toolkit&nbsp;Windows7 64bit&nbsp;2.3V 설치<br>&nbsp;&nbsp; Accelereyes社의 Jacket 1.2V 설치<br><br>학습사항<br>&nbsp;&nbsp; Jacket Userguide 정독<br><br>Sample Code Test<br>&nbsp;&nbsp; %2500 x 2500 single matrix inner product GPU로 계산<br>&nbsp;&nbsp;&nbsp;clear;<br>&nbsp;&nbsp; tic;<br>&nbsp;&nbsp; a=gsingle(rand(2500,'single'));<br>&nbsp;&nbsp; b=a*a;<br>&nbsp;&nbsp; toc<br></p><p>&nbsp;&nbsp; %동일 matrix CPU로 계산<br>&nbsp;&nbsp; clear;<br>&nbsp;&nbsp; tic;<br>&nbsp;&nbsp; c = rand(2500,'single');<br>&nbsp;&nbsp; d = c*c;<br>&nbsp;&nbsp; toc<br><br>결과<br>&nbsp;&nbsp; Elapsed time is 0.155417 seconds.&nbsp; %GPU 계산시간<br>&nbsp;&nbsp; Elapsed time is 1.179053 seconds.&nbsp; %CPU 계산시간<br><br><strong>고찰<br>&nbsp;&nbsp; CPU연산에 비해 GPU 연산이 약 7.59배 빠름.<br>&nbsp;&nbsp; P8700이 Dual Core 2.55GHz 임을 상기한다면 대단한 연산속도 향상임(GPU는 Single Core)<br></strong><br>제약사항<br>&nbsp;&nbsp; 충분한 크기의 matrix size 지원하지 못함<br>&nbsp;&nbsp; 불안정함. 연산도중 Graphic Driver 다운 후&nbsp;복구된 적 있음<br>&nbsp;&nbsp; Jacket 프로그램은 15일 Trail 임. 구매비용 1500 USD<br><br><br><br>오늘 하루 종일 삽질 했네요 -_-;;<br>파티션 나누는 것 부터 막히기 시작해서 <br>가상 드라이브 잘못 깔았다가 다 날려먹고<br>(공포의 Blue Screen과 함께 무한 리부팅. 알콜120% 잊지 않겠다!! TT)<br>Windows7 이미지로 떠서 USB에 옮기구<br>CUDA Driver도 3번이나 받았고(버젼을 몰라서 해맴)<br>Jacket trail 라이센스 받을려구 개고생~<br>아흐~ 눈물난다~ 눈물나~ TT<br>그런데 7 써보니까 좋은데요 헤헷</p><br/><br/>tag : <a href="/tag/matlab" rel="tag">matlab</a>,&nbsp;<a href="/tag/cuda" rel="tag">cuda</a>			 ]]> 
		</description>
		<category>Study</category>
		<category>matlab</category>
		<category>cuda</category>

		<comments>http://lstudio.egloos.com/2727910#comments</comments>
		<pubDate>Tue, 27 Oct 2009 13:36:02 GMT</pubDate>
		<dc:creator>Studio LGS</dc:creator>
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		<title><![CDATA[ MATLAB 동영상 강좌 - Lec03-01 Operator, +,- Inner Product ]]> </title>
		<link>http://lstudio.egloos.com/2726752</link>
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			<![CDATA[ 
  <embed height="390" width="520" src="mms://leegunsuck.cafe24.com/leegunsuck/basic1875531/03_Operator/0301Ts5gSRid21Iak0i0B3iB.wmv"><br/><br/>tag : <a href="/tag/matlab" rel="tag">matlab</a>,&nbsp;<a href="/tag/operator" rel="tag">operator</a>,&nbsp;<a href="/tag/inner" rel="tag">inner</a>,&nbsp;<a href="/tag/product" rel="tag">product</a>,&nbsp;<a href="/tag/동영상" rel="tag">동영상</a>,&nbsp;<a href="/tag/강좌" rel="tag">강좌</a>			 ]]> 
		</description>
		<category>Study</category>
		<category>matlab</category>
		<category>operator</category>
		<category>inner</category>
		<category>product</category>
		<category>동영상</category>
		<category>강좌</category>

		<comments>http://lstudio.egloos.com/2726752#comments</comments>
		<pubDate>Mon, 26 Oct 2009 14:28:49 GMT</pubDate>
		<dc:creator>Studio LGS</dc:creator>
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		<title><![CDATA[ GPUmat: GPU toolbox for MATLAB ]]> </title>
		<link>http://lstudio.egloos.com/2717105</link>
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			<![CDATA[ 
  <div style="TEXT-ALIGN: left"></div>요즘 주식 프로그램을 짜면서 컴퓨터 자원이 몹시 모자람을 느낍니다. (지름신 강림 직전@.@)<br><br>작년에 읽었던 기사가 기억났습니다.<br><br>엔비디아, ‘테슬라 퍼스널 수퍼컴퓨터’ 출시&nbsp;&nbsp;&nbsp;&nbsp; <br>테슬라 GPU, 데스크톱 컴퓨터에서 클러스터 수준의 성능 구현&nbsp; <br><a href="http://www.itdaily.kr/news/articleView.html?idxno=17132">http://www.itdaily.kr/news/articleView.html?idxno=17132</a>#<br><br>CUDA란 무엇인가?<br><a href="http://kr.nvidia.com/object/cuda_home_kr.html">http://kr.nvidia.com/object/cuda_home_kr.html</a><br>CUDA 지원제품을 눈여겨 보아야 합니다.<br><br><br>MATLAB에서 GPU를 사용할 수 있게하는&nbsp;MATLAB toolbox(GPUmat: 무료)가 있습니다.<br><a href="http://www.gp-you.org/">www.gp-you.org</a> 사이트에 따르면 Matrix 크기가 커짐에 따라 최고 40배 이상의 연산속도를 보여준다는 군요.<br>현재(09.10.19) single형 변수 double형 변수를 지원합니다.<br>하루종일 돌려야하는 시뮬레이션을&nbsp;&nbsp;40분만에!!<br><br><br><div style="text-align:center"><img class="image_mid" border="0" onmouseover="this.style.cursor='pointer'" alt="" src="http://pds17.egloos.com/pds/200910/20/24/e0076624_4adc9226e26f5.jpg" width="400" height="417" onclick="Control.Modal.openDialog(this, event, 'http://pds17.egloos.com/pds/200910/20/24/e0076624_4adc9226e26f5.jpg');" /></div><br><div style="TEXT-ALIGN: center">&lt;출처: <a href="http://www.gp-you.org/">www.gp-you.org</a> &gt;<br><br><div style="TEXT-ALIGN: left">지름신이 말씀하시길...<br>이동이 잦으므로 Notebook으로 할 것!<br>그래픽 카드가 CUDA를 지원 할 것!<br>변수 하나가 800MB가 넘어 감으로 그래픽 Memory가 충분할 것!<br>가격은 200만원 이하로...<br>그리하야 LG Xnote R580-UP87K(GT 130M/1GB)&nbsp;로 낙찰~ <br>메모리는 4GB로 Upgrade 해아할 것 같고...<br>자~ 지르러 갑시다 ^^</div></div><br/><br/>tag : <a href="/tag/matlab" rel="tag">matlab</a>,&nbsp;<a href="/tag/cuda" rel="tag">cuda</a>,&nbsp;<a href="/tag/gpu" rel="tag">gpu</a>			 ]]> 
		</description>
		<category>Study</category>
		<category>matlab</category>
		<category>cuda</category>
		<category>gpu</category>

		<comments>http://lstudio.egloos.com/2717105#comments</comments>
		<pubDate>Mon, 19 Oct 2009 16:10:03 GMT</pubDate>
		<dc:creator>Studio LGS</dc:creator>
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		<title><![CDATA[ LGS' 雜說 4 - 주가예측 프로그램 Ver 2.15 ]]> </title>
		<link>http://lstudio.egloos.com/2633467</link>
		<guid>http://lstudio.egloos.com/2633467</guid>
		<description>
			<![CDATA[ 
  <p>요즘 MATLAB으로 주가 예측 프로그램 버젼 2.0을 만들고 있다.<br>인공신경망회로니 페턴인식이니 유전자 알고리즘이니 이딴거 필요없다!!<br>그냥 쌩으로 330만개 데이터 비교한다!!<br>비교해서 제일 비슷한놈 10개 골라내서 평균해서 주가 예측한다.<br>이동평균선 MACD, Stocastic 이딴거도 필요없다!!<br>어짜피 주가가 비슷하면 위의 지표도 비슷하다!!<br>그냥 쌩이다!! 330만개 데이터!!<br>메모리가 매우 후달리는 관계로 놋북 교체 고려 중~</p><br/><br/>tag : <a href="/tag/주식" rel="tag">주식</a>,&nbsp;<a href="/tag/예측" rel="tag">예측</a>,&nbsp;<a href="/tag/주가예측" rel="tag">주가예측</a>,&nbsp;<a href="/tag/matlab" rel="tag">matlab</a>			 ]]> 
		</description>
		<category>주식</category>
		<category>예측</category>
		<category>주가예측</category>
		<category>matlab</category>

		<comments>http://lstudio.egloos.com/2633467#comments</comments>
		<pubDate>Tue, 13 Oct 2009 08:32:51 GMT</pubDate>
		<dc:creator>Studio LGS</dc:creator>
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	<item>
		<title><![CDATA[ Studio LGS의 MATLAB으로 배우는 주식 - 01 ]]> </title>
		<link>http://lstudio.egloos.com/2535480</link>
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		<description>
			<![CDATA[ 
  <div style="TEXT-ALIGN: center"></div><div style="TEXT-ALIGN: center"></div><div style="text-align:center"><img class="image_mid" border="0" onmouseover="this.style.cursor='pointer'" alt="" src="http://pds17.egloos.com/pds/200910/03/24/e0076624_4ac707608af04.png" width="500" height="321.951219512" onclick="Control.Modal.openDialog(this, event, 'http://pds17.egloos.com/pds/200910/03/24/e0076624_4ac707608af04.png');" /></div><div style="TEXT-ALIGN: center">&lt;FIG 01 - yeasterday close price vs&nbsp; today close price&gt;<br></div>2009년 10월 02일 현재 총 2059개의 종목 3281489의 sample을 가지고 정리해본 결과(감자등으로 인한 비정상 데이터 제외)<br>전일종가 대비 당일 종가기준<br>상승 : 1410811개, 42.99%<br>보함 : 360602개,&nbsp; 10.99%<br>하락 : 1510076개, 46.02%<br>으로 <span style="BACKGROUND-COLOR: #ffff99; COLOR: #000000"><span style="BACKGROUND-COLOR: #ffff66; COLOR: #c0c0c0"><span style="BACKGROUND-COLOR: #ffcc00"><span style="BACKGROUND-COLOR: #ffff66; COLOR: #000000">주식시장은 주가가 오랫동안&nbsp;조금씩 내리다가 한번에 많이 오르는 구조</span></span></span></span>임을 알 수 있다.<br>특징점으로 상승, 하락 제한폭인 +-15%에 peak가 있으며 +-12%에도 각각&nbsp;peak가 보인다<br>mean&nbsp;= 0.0697% std = 0.0409로 정규분포를 따른다고 할 수 있다<br><br>거래세 및 수수료 등의 슬리피지 1%를 감안한다면<br>승률은 30.11%로 <span style="BACKGROUND-COLOR: #ffff99; COLOR: #000000"><span style="BACKGROUND-COLOR: #ffff66; COLOR: #000000">하루만에 이익을 내기 매우 힘들다</span></span>.<br><br><br><div style="text-align:center"><img class="image_mid" border="0" onmouseover="this.style.cursor='pointer'" alt="" src="http://pds15.egloos.com/pds/200910/03/24/e0076624_4ac70fc4a02f5.png" width="500" height="321.951219512" onclick="Control.Modal.openDialog(this, event, 'http://pds15.egloos.com/pds/200910/03/24/e0076624_4ac70fc4a02f5.png');" /></div>당일시가 대비 당일 종가기준<br>상승 : 43.13%<br>보합 : 11.68%<br>하락 : 45.19%<br>으로 <span style="BACKGROUND-COLOR: #ffff99; COLOR: #000000"><span style="BACKGROUND-COLOR: #ffff66; COLOR: #000000">앙봉보다는 음봉의 갯수가 더 많음</span></span>을 알 수 있다.<br><br><div style="text-align:center"><img class="image_mid" border="0" onmouseover="this.style.cursor='pointer'" alt="" src="http://pds15.egloos.com/pds/200910/03/24/e0076624_4ac7154796a37.png" width="500" height="321.951219512" onclick="Control.Modal.openDialog(this, event, 'http://pds15.egloos.com/pds/200910/03/24/e0076624_4ac7154796a37.png');" /></div>전일 주가가 상승했을 경우 전일종가 대비 당일 종가기준<br>상승 : 43.89%<br>보합 : 8.03%<br>하락 : 48.08%<br>으로 <span style="BACKGROUND-COLOR: #ffff66"><span style="COLOR: #000000"><span style="BACKGROUND-COLOR: #ffff66"><span style="BACKGROUND-COLOR: #ffff33"><span style="BACKGROUND-COLOR: #ffff99; COLOR: #000000">전일 주가가 상승했더라도 오늘 주가가 상승할 확률은 높지 않다</span>.</span></span></span><br></span>그러나 기대값은 0.21%로 나왔다. <br>즉 하락하는 횟수는 많은데&nbsp;하락 폭이 크지 않고 <br>&nbsp;&nbsp;&nbsp; 상승하는 횟수는 적으나&nbsp;상승 폭이 크다.<br>12%에 특징적 peak가 보인다.<br><br><strong><span style="BACKGROUND-COLOR: #000000; COLOR: #dcdcdc">검증해보고 싶은 전략이나 아이디어를 보내 주시면 검토후 simulation 해 드립니다. ^^<br>전략이 좋으면 저도 쓰고요~ *^^*<br></span></strong>mail : <a href="mailto:leegunsuck@hotmail.com">leegunsuck@hotmail.com</a><br/><br/>tag : <a href="/tag/주식" rel="tag">주식</a>,&nbsp;<a href="/tag/시뮬레이션" rel="tag">시뮬레이션</a>,&nbsp;<a href="/tag/matlab" rel="tag">matlab</a>,&nbsp;<a href="/tag/시스템" rel="tag">시스템</a>,&nbsp;<a href="/tag/트레이딩" rel="tag">트레이딩</a>,&nbsp;<a href="/tag/비법" rel="tag">비법</a>			 ]]> 
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		<pubDate>Sat, 03 Oct 2009 09:25:01 GMT</pubDate>
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		<pubDate>Tue, 15 Sep 2009 04:50:02 GMT</pubDate>
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