Step 1: Understand the problem.
Landuse classification using satellite imagery involves categorizing different land cover types (forest, water, urban, agriculture, etc.) based on spectral signatures. This is a problem of image classification, and several algorithms can be applied.
Step 2: Examine each option.
\begin{itemize}
\item Option (A): Maximum Likelihood
This is a supervised classification method widely used in remote sensing. It assumes the data follow a normal distribution and classifies pixels based on probability. Hence, this method is valid.
\item Option (B): Northwest Corner Method
This method belongs to Operations Research (used for solving transportation problems). It is unrelated to satellite image classification. Therefore, this option is invalid.
\item Option (C): K Means
K-Means clustering is an unsupervised classification method, commonly applied in remote sensing to partition pixels into clusters without prior training data. Hence, valid.
\item Option (D): ANN (Artificial Neural Networks)
ANNs are advanced machine learning models that can classify satellite images with high accuracy, especially with large datasets. Hence, valid.
\end{itemize}
Step 3: Final Selection.
Valid methods are: Maximum Likelihood, K Means, and ANN.
Final Answer: \[ \boxed{(A), (C), (D)} \]
Match the application areas in Group I with the Satellites/Satellite sensors in Group II.
Group I | Group II |
(P) Cyclone prediction | (1) IRNSS 11 |
(Q) Communication | (2) HySIS |
(R) High resolution mapping | (3) GSAT 30 |
(S) Navigation | (4) CARTOSAT 3 |
(5) SCATSAT 1 |
Identify the option that has the most appropriate sequence such that a coherent paragraph is formed:
Statement:
P. At once, without thinking much, people rushed towards the city in hordes with the sole aim of grabbing as much gold as they could.
Q. However, little did they realize about the impending hardships they would have to face on their way to the city: miles of mud, unfriendly forests, hungry beasts, and inimical local lords—all of which would reduce their chances of getting gold to almost zero.
R. All of them thought that easily they could lay their hands on gold and become wealthy overnight.
S. About a hundred years ago, the news that gold had been discovered in Kolar spread like wildfire and the whole State was in raptures.
Fish : Shoal :: Lion : _________
Select the correct option to complete the analogy.
P and Q play chess frequently against each other. Of these matches, P has won 80% of the matches, drawn 15% of the matches, and lost 5% of the matches.
If they play 3 more matches, what is the probability of P winning exactly 2 of these 3 matches?