Batsmen are the backbone of any cricket team and their selection is very critical to the team's success. A good batsman not only scores run but also provides stability to the team's innings. The most important factor in selecting a batsman is their ability to score runs. It is a generally accepted notion that the future performance of a batsman can be predicted by observing and analyzing their past record. This hypothesis is based on the fact that a player's batting average is generally considered to be a good indicator of their future performance. We proposed a data-driven probabilistic system for batsman performance prediction in the game of cricket. It captures the dependencies between the runs scored by a batsman in consecutive balls. The system is evaluated using a dataset extracted from the Cricinfo website. The system is based on a Hidden Markov model (HMM). HMM is used to generate the prediction model to foresee players' upcoming performances. The first-order Markov chain assumes that the probability of a batsman scoring runs in the next ball is only dependent on how many runs he scored in the current ball. We use a data-driven approach to learn the parameters of the HMM from data. A probabilistic matrix is made that predicts what scores the batter can do on the upcoming balls. The results show that the system can accurately predict the runs scored by a batsman in a ball.
An intelligent sound-based early fault detection system has been proposed for vehicles using machine learning. The system is designed to detect faults in vehicles at an early stage by analyzing the sound emitted by the car. Early detection and correction of defects can improve the efficiency and life of the engine and other mechanical parts. The system uses a microphone to capture the sound emitted by the vehicle and a machine-learning algorithm to analyze the sound and detect faults. A possible fault is determined in the vehicle based on this processed sound. Binary classification is done at the first stage to differentiate between faulty and healthy cars. We collected noisy and normal sound samples of the car engine under normal and different abnormal conditions from multiple workshops and verified the data from experts. We used the time domain, frequency domain, and time-frequency domain features to detect the normal and abnormal conditions of the vehicle correctly. We used abnormal car data to classify it into fifteen other classical vehicle problems. We experimented with various signal processing techniques and presented the comparison results. In the detection and further problem classification, random forest showed the highest results of 97% and 92% with time-frequency features.
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