liblinear fsharp usage more info in original java port https://github.com/bwaldvogel/liblinear-java

liblinear.fs

// Learn more about F# at http://fsharp.net
// See the 'F# Tutorial' project for more help.
open de.bwaldvogel.liblinear
open java.io
open System

[<EntryPoint>]
let main argv = 
            let problem = new Problem()
            problem.l <- 2 // number of training examples
            problem.n <- 2 // number of features
            problem.x <- [|
                            [|new FeatureNode(1,0.); new FeatureNode(2,1.)|]
                            [|new FeatureNode(1,2.); new FeatureNode(2,0.)|]
                        |]// feature nodes
            problem.y <- [|1.;2.|] // target values

            let solver = SolverType.MCSVM_CS; // -s 0
            let C = 1.0    // cost of constraints violation
            let eps = 0.01 // stopping criteria
            
            let parameter = new Parameter(solver, C, eps)
            
            let model = Linear.train(problem, parameter)
           
            let modelFile = new File("model")
            model.save(modelFile);
            // load model or use it directly
            let model = Model.load(modelFile)

            let instance:Feature []= [| new FeatureNode(1, 0.); new FeatureNode(2, 1.) |]

            let prediction = Linear.predict(model, instance)
            printfn "%A" prediction
            Console.ReadKey() |> ignore
            0 // return an integer exit code