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A large amount of work has been taken place, if we talk about forecasting in the fields of power system. Various reforms in the existing techniques have proved to be helpful in providing guidance to researchers for developing efficient algorithms exhibiting greater accuracy. This paper presents three forecasting models viz. three-daytrained Support Vector Regression model and parameter optimized Support Vector Regression using Genetic Algorithm (SVRGA) and that using Particle Swarm Optimization (SVRPSO). Unlike existing models, these models accomplish accurate forecasting by optimizing the regularized structural risk function. The models make use of previous three days hourly load data for predicting next day hourly load. This paper performs a comparative study between GA and PSO on the grounds of optimization of the hyperparameters of SVR model.

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Objective To analyze the long‐term symptomatic results of laser‐assisted sialolithotripsy (LAS) in cases of obstructive sialolithiasis and correlate with objective criteria using diagnostic sialendoscopy (DS) as a method of examination. Methods This is a retrospective study comprising 50 consecutive patients who underwent holmium‐YAG LAS and completed follow‐up of at least 6 months. Symptom scoring and endoscopic scoring were done at 6 weeks and 6 months intervals for further study purposes. Results At the end of 6 weeks post‐LAS, 70% patients were asymptomatic (A‐sym) and only 30% had residual symptoms (Sym). However, obstructed duct (OB‐duct) was observed on endoscopic scoring in 88% due to stenosis, residual stones, or both stenosis and residual stones. The obstructed ducts were treated in outpatient clinic and followed up over time, leading to 98% of patients being in A‐sym group at the end of study period of 6 months. At the end of study, 82% of patients had clear duct (CL‐duct). Conclusion Holmium LAS is a viable option for the management of intermediate‐sized stones. LAS if used judiciously, and in properly selected cases, has high rate of stone fragmentation and symptom resolution. A vigilant postoperative protocol taking into account residual mealtime symptoms and altered salivary characteristics combined with early DS can help identify and treat patients with residual stone fragments and ductal stenosis. Level of Evidence 3 Laryngoscope, 132:2344–2349, 2022