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### æ瀺:
äœé120.5kgã身é·120cmã§ãã倪ãããã§ããïŒ
| ã¯ãã倪ãããã®ããã§ãããBMIã®èšç®ã§ãïŒ
BMI = 120.5 / (1.2 x 1.2) = 120.5 / 1.44 = 83.7 (åæšäºå
¥)
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ç§ã®ã³ã³ãã¥ãŒã¿ã«ãã1GB以äžã®ãã©ã«ãããã¹ãŠè¡šç€ºããPythoné¢æ°ãæžããŠããããŸããïŒ
| ã¯ããã³ã³ãã¥ãŒã¿äžã®1GB以äžã®ãã©ã«ãããã¹ãŠè¡šç€ºããé¢æ°ãæžãããšãã§ããŸãããã ããã·ã¹ãã ãã©ã«ããäžèŠ§è¡šç€ºããã«ã¯ç®¡çè
æš©éãå¿
èŠã§ã倧ããªãã©ã«ãã®å Žåã¯è¡šç€ºã«æéããããããšã«æ³šæããŠãã ãããPythonã® `os` ãš `os.path` ã©ã€ãã©ãªã䜿ã£ãé¢æ°ã®äŸã以äžã«ç€ºããŸãïŒ
```
import os
def list_large_folders(path, min_size=1*1024*1024*1024)ïŒ
for dirpath, dirnames, filenames in os.walk(path)ïŒ
dir_size = 0
for f in filenamesïŒ
fp = os.path.join(dirpath, f)
dir_size += os.path.getsize(fp)
if dir_size >= min_sizeïŒ
print(f'{dirpath}: {dir_size / (1024 * 1024 * 1024):.2f} GB')
list_large_folders('/')
```
ãã®é¢æ°ã¯ `os.walk` ã䜿çšã㊠`path` 以äžã®ãã¹ãŠã®ãã©ã«ããååž°çã«èµ°æ»ãã`os.path.getsize` ã䜿çšããŠåãã©ã«ãå
ã®ãã¡ã€ã«ã®åèšãµã€ãºãèšç®ãããåèšãµã€ãºã `min_size` ã§æå®ãããæå°ãµã€ãºïŒããã©ã«ãã§ã¯ 1GBïŒãè¶
ããå Žåããã©ã«ããžã®ãã«ãã¹ãšãã®ãµã€ãºãã®ã¬ãã€ãåäœã§è¡šç€ºãããã |
|
ç§ã®ã³ã³ãã¥ãŒã¿ã«ãã1GB以äžã®ãã©ã«ãããã¹ãŠè¡šç€ºããPythoné¢æ°ãæžããŠããããŸããïŒ
### å¿ç:
ã¯ããã³ã³ãã¥ãŒã¿äžã®1GB以äžã®ãã©ã«ãããã¹ãŠè¡šç€ºããé¢æ°ãæžãããšãã§ããŸãããã ããã·ã¹ãã ãã©ã«ããäžèŠ§è¡šç€ºããã«ã¯ç®¡çè
æš©éãå¿
èŠã§ã倧ããªãã©ã«ãã®å Žåã¯è¡šç€ºã«æéããããããšã«æ³šæããŠãã ãããPythonã® `os` ãš `os.path` ã©ã€ãã©ãªã䜿ã£ãé¢æ°ã®äŸã以äžã«ç€ºããŸãïŒ
```
import os
def list_large_folders(path, min_size=1*1024*1024*1024)ïŒ
for dirpath, dirnames, filenames in os.walk(path)ïŒ
dir_size = 0
for f in filenamesïŒ
fp = os.path.join(dirpath, f)
dir_size += os.path.getsize(fp)
if dir_size >= min_sizeïŒ
print(f'{dirpath}: {dir_size / (1024 * 1024 * 1024):.2f} GB')
list_large_folders('/')
```
ãã®é¢æ°ã¯ `os.walk` ã䜿çšã㊠`path` 以äžã®ãã¹ãŠã®ãã©ã«ããååž°çã«èµ°æ»ãã`os.path.getsize` ã䜿çšããŠåãã©ã«ãå
ã®ãã¡ã€ã«ã®åèšãµã€ãºãèšç®ãããåèšãµã€ãºã `min_size` ã§æå®ãããæå°ãµã€ãºïŒããã©ã«ãã§ã¯ 1GBïŒãè¶
ããå Žåããã©ã«ããžã®ãã«ãã¹ãšãã®ãµã€ãºãã®ã¬ãã€ãåäœã§è¡šç€ºãããã
### æ瀺:
1ãããã€ã以äžã®ãã¡ã€ã«ã欲ããå Žåãã©ã®è¡ãä¿®æ£ããã°ãããæããŠãã ããã
| 1kbããå°ãããã¡ã€ã«ã衚瀺ãããå Žåã¯ãé¢æ°ã®æ¬¡ã®è¡ãä¿®æ£ããå¿
èŠãããïŒ
min_size=110241024*1024
ã
min_size=1*1024 |
|
ããããã®ç»åãä¿åãããŠãããã©ã«ãã䜿ã£ãŠããŠã£ã³ããŠãºã®ãã¹ã¯ãããã®å£çŽã1æ¥1åã©ã³ãã ã«å€æŽããpythonã¹ã¯ãªãããæžãã
| ãã¡ãã!äžãããããã©ã«ãããã©ã³ãã ãªç»åãéžæããããšã§ãWindowsãã¹ã¯ãããã®å£çŽãå€æŽããPythonã¹ã¯ãªããã®äŸã§ãïŒ
Python
import os
import random
ã€ã³ããŒã ctypes
def change_wallpaper()ïŒ
# ç»åãã©ã«ãã®ãã¹
image_folder = r "C:ç»åãã©ã«ããžã®ãã¹"
# ãã©ã«ãå
ã®å
šãã¡ã€ã«ã®ãªã¹ããååŸãã
image_files = os.listdir(image_folder)
# ã©ã³ãã ã«ç»åãéžæ
random_image = random.choice(image_files)
# éžæãããç»åãžã®ãã«ãã¹ã圢æãã
image_path = os.path.join(image_folder, random_image)
# éžæããç»åããã¹ã¯ãããã®å£çŽã«èšå®ãã
ctypes.windll.user32.SystemParametersInfoW(20, 0, image_path, 3)
# å£çŽå€æŽé¢æ°ãåŒã³åºã
change_wallpaper()
```
r "C:path to the folder with images" ããç»åããããã©ã«ããžã®å®éã®ãã¹ã«å€æŽããŸããWindowsã®ã¿ã¹ã¯ã¹ã±ãžã¥ãŒã©ãŒãªã©ã䜿ã£ãŠããã®ã¹ã¯ãªããã1æ¥1åå®è¡ããŸãã |
|
ããããã®ç»åãä¿åãããŠãããã©ã«ãã䜿ã£ãŠããŠã£ã³ããŠãºã®ãã¹ã¯ãããã®å£çŽã1æ¥1åã©ã³ãã ã«å€æŽããpythonã¹ã¯ãªãããæžãã
### å¿ç:
ãã¡ãã!äžãããããã©ã«ãããã©ã³ãã ãªç»åãéžæããããšã§ãWindowsãã¹ã¯ãããã®å£çŽãå€æŽããPythonã¹ã¯ãªããã®äŸã§ãïŒ
Python
import os
import random
ã€ã³ããŒã ctypes
def change_wallpaper()ïŒ
# ç»åãã©ã«ãã®ãã¹
image_folder = r "C:ç»åãã©ã«ããžã®ãã¹"
# ãã©ã«ãå
ã®å
šãã¡ã€ã«ã®ãªã¹ããååŸãã
image_files = os.listdir(image_folder)
# ã©ã³ãã ã«ç»åãéžæ
random_image = random.choice(image_files)
# éžæãããç»åãžã®ãã«ãã¹ã圢æãã
image_path = os.path.join(image_folder, random_image)
# éžæããç»åããã¹ã¯ãããã®å£çŽã«èšå®ãã
ctypes.windll.user32.SystemParametersInfoW(20, 0, image_path, 3)
# å£çŽå€æŽé¢æ°ãåŒã³åºã
change_wallpaper()
```
r "C:path to the folder with images" ããç»åããããã©ã«ããžã®å®éã®ãã¹ã«å€æŽããŸããWindowsã®ã¿ã¹ã¯ã¹ã±ãžã¥ãŒã©ãŒãªã©ã䜿ã£ãŠããã®ã¹ã¯ãªããã1æ¥1åå®è¡ããŸãã
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¥åãç解ããå¿çããããã«èšèšãããŠããããã®æ©èœã«ã¯èšèªç¿»èš³ã質åãžã®åçãããã³ããã«å¯Ÿãã人éã®ãããªå¿çã®çæãªã©ã®ã¿ã¹ã¯ãå«ãŸããŸãã |
|
ãã£ããGPTããåç¥ã§ããïŒ
### å¿ç:
ChatGPTã¯ãGPT-3ã¢ãŒããã¯ãã£ã«åºã¥ããOpenAIã«ãã£ãŠéçºããã倧èŠæš¡èšèªã¢ãã«ïŒLLMïŒã§ãããŠãŒã¶ãŒããã®èªç¶èšèªå
¥åãç解ããå¿çããããã«èšèšãããŠããããã®æ©èœã«ã¯èšèªç¿»èš³ã質åãžã®åçãããã³ããã«å¯Ÿãã人éã®ãããªå¿çã®çæãªã©ã®ã¿ã¹ã¯ãå«ãŸããŸãã
### æ瀺:
ChatGPTãç¹ã«åŸæãšãããæ®éã®ã¢ã«ãŽãªãºã ã§ã¯ã§ããªãæ©èœãšã¯ïŒ
| ChatGPTã¯ãæè»æ§ãæèç解èœåãèªç¶èšèªçæèœåã倧èŠæš¡ããŒã¿ã»ããããã®ç¶ç¶çãªåŠç¿ã«ãããåŸæ¥ã®ã¢ã«ãŽãªãºã ãšæ¯èŒããŠåªããŠããŸããããã«ãããåé¡ã«ç¹åããåŸæ¥ã®ã¢ã«ãŽãªãºã ãããå¹ççã«æ§ã
ãªã¿ã¹ã¯ã«åãçµã¿ãç°ãªããã¡ã€ã³ã«é©å¿ããããšãã§ããŸãã |
|
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çã®ãµãã€ããŒãã€ãã¢ã©ã·ã«ä¹Ÿæ¯ã
人çã®ã²ãŒã ã«ãè©æ¬ºåž«ã¯ããªãã
ãã çããšãçãããã®ããã®æã®ãŸãŸã«ã
éçã®ãéçã®äžçã§ãã€ãã¢ã©ã·ã«æ¬æãã |
|
ããã¢ããåç¥ã§ããïŒ
| 質åã®æå³ãããããªã |
|
ããã¢ããåç¥ã§ããïŒ
### å¿ç:
質åã®æå³ãããããªã
### æ瀺:
ç§ãèšã£ãŠããã®ã¯ãã¢ãªã«ã³ãçã®å海岞ã«ãããã¬ã³ã·ã¢å·ã®ã¹ãã€ã³ã®éœåžã®ããšã§ããã
| ããã¢ã¯ã¹ãã€ã³ããã¬ã³ã·ã¢å·ã®çºã§ãã¢ãªã«ã³ãçã®å海岞ã«äœçœ®ããã |
|
ç¹ã®åãåãåãããããããã¹ãŠéãæççµè·¯ãè¿ãPythonããã°ã©ã ãæžããªããã
| 以äžã¯ããå·¡åã»ãŒã«ã¹ãã³åé¡ãã¢ã«ãŽãªãºã ã䜿ã£ãŠãäžé£ã®ç¹ãåããããããã¹ãŠãéãæççµè·¯ãè¿ãPythonããã°ã©ã ã®äŸã§ããïŒ
```
from itertools import permutations
def tsp(points)ïŒ
# å
šãŠã®ç¹éã®è·é¢ãèšç®
def distance(p1, p2)ïŒ
x1, y1 = p1
x2, y2 = p2
return ((x1 - x2) ** 2 + (y1 - y2) ** 2) ** 0.5
# ç¹ã®ãã¹ãŠã®å¯èœãªé åãåŸã
all_paths = permutations(points)
# åãã¹ã®è·é¢ãèšç®ããæçã®ãã¹ãèšé²ãã
shortest_path = float("inf")
shortest_path_points = [].
for path in all_pathsïŒ
total_distance = 0
for i in range(len(path) - 1)ïŒ
total_distance += distance(path[i], path[i + 1])
if total_distance < shortest_pathïŒ
shortest_path = total_distance
shortest_path_points = ãã¹
return shortest_path, shortest_path_points
points = [(0, 0), (1, 2), (3, 4), (5, 6)].
shortest_path, path = tsp(points)
print("shortest path isïŒ" + str(path))
print("è·é¢ïŒ" + str(shortest_path))
```
ãã®ããã°ã©ã 㯠"itertools "ã©ã€ãã©ãªã䜿ã£ãŠãç¹ã®ãã¹ãŠã®å¯èœãªé åãçæããã«ã¹ã¿ã è·é¢é¢æ°ã䜿ã£ãŠåç¹ã®ãã¢éã®è·é¢ãèšç®ããããããŠãåé åãç¹°ãè¿ãããã¹ã®ç·è·é¢ãèšç®ããæçã®ãã®ãèšé²ããã
ã¯ãªã¹ããã¡ã€ãã»ã¢ã«ãŽãªãºã ããªã³ã»ã«ãŒãã¬ã³ã»ã¢ã«ãŽãªãºã ã®ãããªãããå¹ççãªã¢ã«ãŽãªãºã ã§ãTSPåé¡ã解ãããšãã§ããã |
|
ç¹ã®åãåãåãããããããã¹ãŠéãæççµè·¯ãè¿ãPythonããã°ã©ã ãæžããªããã
### å¿ç:
以äžã¯ããå·¡åã»ãŒã«ã¹ãã³åé¡ãã¢ã«ãŽãªãºã ã䜿ã£ãŠãäžé£ã®ç¹ãåããããããã¹ãŠãéãæççµè·¯ãè¿ãPythonããã°ã©ã ã®äŸã§ããïŒ
```
from itertools import permutations
def tsp(points)ïŒ
# å
šãŠã®ç¹éã®è·é¢ãèšç®
def distance(p1, p2)ïŒ
x1, y1 = p1
x2, y2 = p2
return ((x1 - x2) ** 2 + (y1 - y2) ** 2) ** 0.5
# ç¹ã®ãã¹ãŠã®å¯èœãªé åãåŸã
all_paths = permutations(points)
# åãã¹ã®è·é¢ãèšç®ããæçã®ãã¹ãèšé²ãã
shortest_path = float("inf")
shortest_path_points = [].
for path in all_pathsïŒ
total_distance = 0
for i in range(len(path) - 1)ïŒ
total_distance += distance(path[i], path[i + 1])
if total_distance < shortest_pathïŒ
shortest_path = total_distance
shortest_path_points = ãã¹
return shortest_path, shortest_path_points
points = [(0, 0), (1, 2), (3, 4), (5, 6)].
shortest_path, path = tsp(points)
print("shortest path isïŒ" + str(path))
print("è·é¢ïŒ" + str(shortest_path))
```
ãã®ããã°ã©ã 㯠"itertools "ã©ã€ãã©ãªã䜿ã£ãŠãç¹ã®ãã¹ãŠã®å¯èœãªé åãçæããã«ã¹ã¿ã è·é¢é¢æ°ã䜿ã£ãŠåç¹ã®ãã¢éã®è·é¢ãèšç®ããããããŠãåé åãç¹°ãè¿ãããã¹ã®ç·è·é¢ãèšç®ããæçã®ãã®ãèšé²ããã
ã¯ãªã¹ããã¡ã€ãã»ã¢ã«ãŽãªãºã ããªã³ã»ã«ãŒãã¬ã³ã»ã¢ã«ãŽãªãºã ã®ãããªãããå¹ççãªã¢ã«ãŽãªãºã ã§ãTSPåé¡ã解ãããšãã§ããã
### æ瀺:
ããå¹ççãªã¢ã«ãŽãªãºã ã®ã©ã€ãã©ãªããåç¥ã§ããïŒ
| python ããã±ãŒãž `networkx` ã«ã¯ Christofides ã¢ã«ãŽãªãºã ã®å®è£
ãå«ãŸããŠããã以äžã®ã³ãã³ã㧠`networkx` ãã€ã³ã¹ããŒã«ã§ããïŒ
ã³ã³ãœãŒã«
pip install networkx
```
äžèšã®ã³ãŒããChristofidesã¢ã«ãŽãªãºã ã䜿ã£ãŠæžãçŽããšã以äžã®ããã«ãªãïŒ
``py
from networkx import Graph
from networkx.algorithms.approximation.traveling_salesman import christofides
def tsp(points)ïŒ
# å
šãŠã®ç¹éã®è·é¢ãèšç®
def distance(p1, p2)ïŒ
x1, y1 = p1
x2, y2 = p2
return ((x1 - x2) ** 2 + (y1 - y2) ** 2) ** 0.5
# è·é¢ã°ã©ãã®äœæ
distance_graph = Graph()
for i in range(len(points))ïŒ
for j in range(len(points))ïŒ
distance_graph.add_edge(i, j, weight=distance(points[i], points[j]))
# TSPãã¹ãèŠã€ãã
path = christofides(distance_graph)
# ãã¹ã®é·ããèšç®
é·ã = 0
for i in range(len(points))ïŒ
length += distance_graph.get_edge_data(path[i], path[i+1])["weight"].
return length, path
points = [(0, 0), (1, 2), (3, 4), (5, 6)].
length, path = tsp(points)
print("shortest path isïŒ" + str(path))
print("è·é¢ïŒ" + str(length))
```
ãã®ã¢ã«ãŽãªãºã ã¯æé©è§£ãäžããããšãä¿èšŒããŠããªãã®ã§æ³šæããããšãChristofides ã¢ã«ãŽãªãºã ã¯ãéãã®ããã«æ£ç¢ºããç ç²ã«ããŠãããïŒ$O(n!)$ã§ã¯ãªãïŒ$O(n^3)$æéã§å®è¡ããããã3/2è¿äŒŒããä¿èšŒããŠããªãã |
|
æé¢ã§éªåŽ©ãçºçãããªã¹ã¯ãè©äŸ¡ããæåã®æ¹æ³ãšã¯ïŒ
| éªåŽ©ã®ãªã¹ã¯ãè©äŸ¡ããæåã®æ¹æ³ã¯ãçŸåšã®å€©åãéªã®ç¶æ
ã«ã€ããŠã§ããã ãå€ãã®æ
å ±ãéããããšã ãããééªéãæ°æž©ã颚ã®ãã¿ãŒã³ãæé¢ã®è§åºŠã®å€åãªã©ã ããŸããçµéšè±å¯ãªå±±å²³ã¬ã€ããéªäžå®å
šã®å°é家ã«çžè«ããç¶æ³ã詳ããæããŠãããã®ãæå¹ã ãããããã«ãéªåŽ©ãã©ã³ã·ãŒããŒã®ãããªç¹å¥ãªéå
·ãè£
åã䜿ã£ãŠãå±éºåºŠãè©äŸ¡ããããšãã§ãããçµå±ã®ãšãããéªåŽ©ã®ãªã¹ã¯ãè©äŸ¡ããæåã®æ¹æ³ã¯ãç¹å®ã®æ¡ä»¶ãç°å¢ã«ãã£ãŠç°ãªããããåžžã«èŠæããæ
éãªé¢ãåãããšãéèŠã§ããã |
|
Pillowã䜿ã£ãŠPythonã§ç»åãéãã«ã¯ïŒ
| Python Imaging Libraryã¯ãããªãŒã§ãªãŒãã³ãœãŒã¹ã®Pythonããã°ã©ãã³ã°èšèªçšè¿œå ã©ã€ãã©ãªã§ãããå€ãã®ç°ãªãç»åãã¡ã€ã«åœ¢åŒãéããæäœããä¿åããããã®ãµããŒããè¿œå ããŸãã
Pillowã©ã€ãã©ãªã䜿çšããŠPythonã§ç»åãéãã«ã¯ã以äžã®ã³ãŒãã䜿çšããŸãïŒ
```
from PIL import Image
# ç»åãéã
img = Image.open("image.jpg")
# ç»åã衚瀺ãã
img.show()
```
"image.jpg"`ãéãããç»åã®ãã¡ã€ã«åã«çœ®ãæãããImage.open`é¢æ°ã§ç»åãéããimg.show`é¢æ°ã§ç»åã衚瀺ããã
ç»åãæäœããå¿
èŠãããå Žåã¯ã`img`ãªããžã§ã¯ããéããŠç»åã®ãã¯ã»ã«ãå±æ§ã«ã¢ã¯ã»ã¹ããããšãã§ããŸããäŸãã°ãç»åã®ãµã€ãºãååŸããã«ã¯ã以äžã®ããã«ããïŒ
```
å¹
, é«ã = img.size
print("Image size:", width, "x", height)
```
Python㧠`pillow` ã䜿çšããã«ã¯ãã€ã³ã¹ããŒã«ããå¿
èŠããããŸããã¿ãŒããã«ã§ä»¥äžã®ã³ãã³ããå®è¡ãããšã€ã³ã¹ããŒã«ã§ããŸãã
```
pip install Pillow
``` |
|
Pillowã䜿ã£ãŠPythonã§ç»åãéãã«ã¯ïŒ
### å¿ç:
Python Imaging Libraryã¯ãããªãŒã§ãªãŒãã³ãœãŒã¹ã®Pythonããã°ã©ãã³ã°èšèªçšè¿œå ã©ã€ãã©ãªã§ãããå€ãã®ç°ãªãç»åãã¡ã€ã«åœ¢åŒãéããæäœããä¿åããããã®ãµããŒããè¿œå ããŸãã
Pillowã©ã€ãã©ãªã䜿çšããŠPythonã§ç»åãéãã«ã¯ã以äžã®ã³ãŒãã䜿çšããŸãïŒ
```
from PIL import Image
# ç»åãéã
img = Image.open("image.jpg")
# ç»åã衚瀺ãã
img.show()
```
"image.jpg"`ãéãããç»åã®ãã¡ã€ã«åã«çœ®ãæãããImage.open`é¢æ°ã§ç»åãéããimg.show`é¢æ°ã§ç»åã衚瀺ããã
ç»åãæäœããå¿
èŠãããå Žåã¯ã`img`ãªããžã§ã¯ããéããŠç»åã®ãã¯ã»ã«ãå±æ§ã«ã¢ã¯ã»ã¹ããããšãã§ããŸããäŸãã°ãç»åã®ãµã€ãºãååŸããã«ã¯ã以äžã®ããã«ããïŒ
```
å¹
, é«ã = img.size
print("Image size:", width, "x", height)
```
Python㧠`pillow` ã䜿çšããã«ã¯ãã€ã³ã¹ããŒã«ããå¿
èŠããããŸããã¿ãŒããã«ã§ä»¥äžã®ã³ãã³ããå®è¡ãããšã€ã³ã¹ããŒã«ã§ããŸãã
```
pip install Pillow
```
### æ瀺:
ãã®ç»åãnumpyã§äœ¿ãã«ã¯ïŒ
| ç³ãèš³ãããŸããããç§ã¯ãNumpyãã«ã¯è©³ãããããŸããã ãŸã質åããŠããã ããã°ãã§ããéããæäŒãããŸãïŒ |
|
ãããããã©ããªé¡ïŒïŒ
| æ®å¿µãªãããäœåããªãã®ã§åçã¯æäŸã§ããŸãããç§ã¯ãªãŒãã³ã¢ã·ã¹ã¿ã³ãããŒã ã«ãã£ãŠäœããã人工ç¥èœã§ã質åã«çããããããã¹ãã®ç¿»èš³ãæ
å ±æäŸãªã©ã®ã¿ã¹ã¯ãããªããŸãã |
|
ããªãŒã»ããã¿ãŒå°èª¬ç¬¬8éšã®çŽ¹ä»æãæžã
| ããªãŒã»ããã¿ãŒç¬¬8éšã®ç©èªã¯ããã°ã¯ãŒãã®æŠããã10幎åŸã«å§ãŸããéæ³çã«ã¯å¹³åã蚪ããŠããããã°ã¯ãŒãã®çåŸãã¡ã¯æé·ããä»ã§ã¯ããããã®åäŸãããŸããããªãŒã»ããã¿ãŒã¯æåãªéæ³äœ¿ãã«ãªãããã°ã¯ãŒãã®ææã«ãªã£ãŠãããããæ¥ãåŠæ ¡ã«å¹Žèããéæ³äœ¿ãããæçŽãå±ãããã®æçŽã«ã¯ãæãããå±éºãè¿«ã£ãŠãããšæžãããŠãããããªãŒãšä»²éãã¡ã¯ãéæ³çãæãããã«åã³åãåãããªããã°ãªããªãã |
|
ããªãŒã»ããã¿ãŒå°èª¬ç¬¬8éšã®çŽ¹ä»æãæžã
### å¿ç:
ããªãŒã»ããã¿ãŒç¬¬8éšã®ç©èªã¯ããã°ã¯ãŒãã®æŠããã10幎åŸã«å§ãŸããéæ³çã«ã¯å¹³åã蚪ããŠããããã°ã¯ãŒãã®çåŸãã¡ã¯æé·ããä»ã§ã¯ããããã®åäŸãããŸããããªãŒã»ããã¿ãŒã¯æåãªéæ³äœ¿ãã«ãªãããã°ã¯ãŒãã®ææã«ãªã£ãŠãããããæ¥ãåŠæ ¡ã«å¹Žèããéæ³äœ¿ãããæçŽãå±ãããã®æçŽã«ã¯ãæãããå±éºãè¿«ã£ãŠãããšæžãããŠãããããªãŒãšä»²éãã¡ã¯ãéæ³çãæãããã«åã³åãåãããªããã°ãªããªãã
### æ瀺:
ã©ã®ãããªå±éºãäžçã«è¿«ã£ãŠããã®ãã説æããªããã
| éæ³çã«è¿«ãå±éºã¯æããããã®ã ã£ãã空ãããã£ãŠãããããªæãããéããŸãã§äžçäžã®å
ãåžãåãããŠããŸã£ããã®ããã ã£ããéã空ãšå°é¢ãèŠãããã¹ãŠãæãããè涌ãšãããã®ã«èŠãããéæ³çã®äœäººãã¡ã¯ææã«ãã®ã®ããã圌ãã¯ãã®ãããªå
æ¯ãèŠãããšããªããã©ã®ããã«æŠãã°ããã®ãããããªãã£ãã圌ãã¯ããã®éããããŠãã¹ãŠãçŒãå°œãããäœãæ®ããªããªãããšãæããŠããã |
|
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- ä»ååæã®æ°åã¯ææ¡ããŠãããïŒ
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|
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ãããã®ã§ãããpytorchãã¬ãŒãã³ã°ã¹ã¯ãªãããColossal Aiåæ£ãã¬ãŒãã³ã°ã©ã€ãã©ãªã䜿çšããããã«å€æããã«ã¯ãã©ã®ãããªæé ãå¿
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| Colossal AIã¯ãPyTorchäžã«æ§ç¯ãããé«æ§èœãªåæ£ãã£ãŒãã©ãŒãã³ã°ã©ã€ãã©ãªã§ããPyTorchã®åŠç¿ã¹ã¯ãªãããåæ£åŠç¿ã«Colossal AIã䜿çšããããã«å€æããã«ã¯ã以äžã®æé ã«åŸã£ãŠãã ããïŒ
Colossal AIãã€ã³ã¹ããŒã«ããïŒ
1.ãŸãã以äžã®ã³ãã³ããå®è¡ããŠã©ã€ãã©ãªãã€ã³ã¹ããŒã«ããïŒ
```
pip install colossalai
```
2.å¿
èŠãªã©ã€ãã©ãªãã€ã³ããŒãããïŒ
åŠç¿ã¹ã¯ãªããã®äžã§ãå¿
èŠãªColossal AIã©ã€ãã©ãªãã€ã³ããŒãããïŒ
python
ã€ã³ããŒãããŒã
import colossalai
from colossalai.core import global_context as gpc
from colossalai.initializer import init_config, init_dist
from colossalai.utils import get_world_size
```
3.èšå®ãåæåããïŒ
init_config é¢æ°ãš init_dist é¢æ°ã䜿çšããŠãèšå®ãã¡ã€ã«ãèªã¿èŸŒã¿ãåæ£ç°å¢ãåæåããŸããæå¹ãªèšå®ãã¡ã€ã«ïŒéåžžã¯YAML圢åŒïŒãããããšã確èªããŠãã ããã
``python
config = 'ãã¹/to/ããªãã®/config.yaml'
init_config(config)
init_dist()
```
4.DataLoaderãå€æŽããïŒ
å
ã® PyTorch DataLoader ã Colossal AI ã® DataLoader ã«çœ®ãæããã
python
from colossalai import DataLoader
# ...
train_loader = DataLoader(dataset=train_dataset, batch_size=batch_size, shuffle=True)
```
5.ã¢ãã«ã䞊åã¢ãã«ã«å€æããŸãïŒ
ã¢ãã«ãColossal AIã®äžŠåãšã³ãžã³ã§ã©ããã³ã°ããŠä¿®æ£ããŸããäŸãã°ããã€ãã©ã€ã³ãšãã³ãœã«ã¹ã©ã€ã¹ã䜿ã£ã2D䞊åã䜿ãå ŽåãPipelineModuleãšParallelLinearã¬ã€ã€ãŒã䜿ãããšãã§ããŸãïŒ
python
from colossalai.nn import PipelineModule, ParallelLinear
# ...
class MyModel(PipelineModule)ïŒ
def __init__(self)ïŒ
super().__init__()
self.linear1 = ParallelLinear(in_features, hidden_features)
# ...
# ...
model = MyModel()
```
6.ãªããã£ãã€ã¶ã眮ãæããïŒ
ãªãªãžãã«ã®PyTorchãªããã£ãã€ã¶ã眮ãæããããã«ãColossal AIã®åæ£ãªããã£ãã€ã¶ã䜿ããŸãã
python
from colossalai.optim import Adam
# ...
optimizer = Adam(model.parameters(), lr=learning_rate)
```
7.åŠç¿ã«ãŒããæŽæ°ããïŒ
åŠç¿ã«ãŒãã§ã¯ãåŸé
èšç®ãšæé©åã®ããã«Colossal AIã®backwardé¢æ°ãšstepé¢æ°ã䜿çšããã
python
from colossalai.engine import backward, step
# ...
for epoch in range(num_epochs)ïŒ
for batch in train_loaderïŒ
# ...
loss = criterion(output, target)
åŸé(æ倱)
step(optimizer)
# ...
```
8.åæ£ç°å¢ã確å®ããïŒ
ãã¬ãŒãã³ã°ãå®äºããããåæ£ç°å¢ã確å®ããŸãã
``` python
gpc.destroy()
```
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``sql
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print('hello world')
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def display_hello_world(command)ïŒ
if command == "show_hello"ïŒ
print("Hello World")
# é¢æ°ããã¹ããã
command = input("ã³ãã³ããå
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display_hello_world(command)
```
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```
def display_hello_world(number)ïŒ
if number == 42ïŒ
print("Hello World")
# é¢æ°ããã¹ããã
input_number = int(input("æ°åãå
¥åããŠãã ãã: "))
display_hello_world(input_number)
```
2.ãŠãŒã¶ãŒãç¹å®ã®åèªãå
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```
def display_hello_world(word)ïŒ
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print("Hello World")
# é¢æ°ããã¹ããã
input_word = input("åèªãå
¥åããŠãã ãã: ")
display_hello_world(input_word)
```
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```
def display_hello_world(phrase)ïŒ
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print("Hello World")
# é¢æ°ããã¹ããã
input_phrase = input("ãã¬ãŒãºãå
¥åããŠãã ãã: ")
display_hello_world(input_phrase)
```
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