public List <Loss> GetAllLosses()
{
List <Loss> lossList = new List <Loss>();
using (SqlConnection conn = new SqlConnection(connectionString))
{
conn.Open();
SqlCommand cmd = new SqlCommand(sqlSelectAllLosses, conn);
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read() == true)
{
Loss currentLoss = new Loss();
currentLoss.lossId = Convert.ToInt32(reader["loss_id"]);
currentLoss.inventoryId = Convert.ToInt32(reader["inventory_id"]);
currentLoss.dateAdded = Convert.ToDateTime(reader["date_added"]);
currentLoss.cropName = Convert.ToString(reader["crop_name"]);
currentLoss.dateLost = Convert.ToDateTime(reader["date_lost"]);
currentLoss.amountLost = Convert.ToDecimal(reader["amount_lost"]);
currentLoss.lossDescription = Convert.ToString(reader["loss_description"]);
lossList.Add(currentLoss);
}
return(lossList);
}
}
private static double evaluate(Tensor eval_data, TransformerModel model, Loss criterion, int bptt, int ntokens, torch.optim.Optimizer optimizer)
{
model.eval();
using (var d = torch.NewDisposeScope()) {
var src_mask = model.GenerateSquareSubsequentMask(bptt);
var total_loss = 0.0f;
var batch = 0;
for (int i = 0; i < eval_data.shape[0] - 1; batch++, i += bptt)
{
var(data, targets) = GetBatch(eval_data, i, bptt);
if (data.shape[0] != bptt)
{
src_mask = model.GenerateSquareSubsequentMask(data.shape[0]);
}
using (var output = model.forward(data, src_mask)) {
var loss = criterion(output.view(-1, ntokens), targets);
total_loss += data.shape[0] * loss.to(torch.CPU).item <float>();
}
data.Dispose();
targets.Dispose();
d.DisposeEverythingBut(src_mask);
}
return(total_loss / eval_data.shape[0]);
}
}
public string InsertLoss(Loss loss)
{
//loss.LoseID = GetUserID(loss.LoseID);
SqlCommand cmd = ConnectSql("Insert into Loss Values(@LoseID , @CategoryCode , @LossDesc , @LossColor , @LossDate ," +
" @Remarks, @StatusCode , @Date, @LossCityCode, @LossLat, @LossLng)");
try
{
cmd.Parameters.AddWithValue("@LoseID", loss.LoseID);
cmd.Parameters.AddWithValue("@CategoryCode", loss.CategoryCode);
cmd.Parameters.AddWithValue("@LossDesc", loss.LossDesc);
cmd.Parameters.AddWithValue("@LossColor", loss.LossColor);
cmd.Parameters.AddWithValue("@LossDate", loss.LossDate);
cmd.Parameters.AddWithValue("@Remarks", loss.Remarks);
cmd.Parameters.AddWithValue("@StatusCode", loss.StatusCode);
cmd.Parameters.AddWithValue("@Date", loss.Date);
cmd.Parameters.AddWithValue("@LossCityCode", loss.LossCityCode);
cmd.Parameters.AddWithValue("@LossLat", loss.LossLat);
cmd.Parameters.AddWithValue("@LossLng", loss.LossLng);
cmd.ExecuteNonQuery();
return("Inserting Loss Seccessfuly");
}
catch (Exception e)
{
return("Exception Occre while inserting loss:" + e.Message + "\t" + e.GetType());
}
finally
{
connection.DisConnectSql();
}
}
public bool RecordNewLoss(Loss newLoss)
{
bool result = false;
try
{
using (SqlConnection conn = new SqlConnection(connectionString))
{
conn.Open();
SqlCommand cmd = new SqlCommand(sqlRecordNewLoss, conn);
cmd.Parameters.AddWithValue("@inventoryId", newLoss.inventoryId);
cmd.Parameters.AddWithValue("@dateLost", newLoss.dateLost);
cmd.Parameters.AddWithValue("@amountLost", newLoss.amountLost);
cmd.Parameters.AddWithValue("@lossDescription", newLoss.lossDescription);
cmd.ExecuteNonQuery();
}
result = true;
}
catch (Exception e)
{
Console.WriteLine(e);
result = false;
}
return(result);
}
public (Curve, List <Vector3>) Step(Curve curve, List <Vector3> momentum)
{
this.curve = curve;
int N = curve.GetLength();
List <Vector3> CurrentPositions = this.curve.GetPositions();
List <Vector3> NewPositions = new List <Vector3>();
Loss loss = new Loss(this.curve);
List <Vector3> grad = loss.Gradient();
List <Vector3> _momentum = new List <Vector3>();
// gradient descent
for (int i = 0; i < N; i++)
{
Vector3 P = CurrentPositions[i];
Vector3 DP = -this.alpha * momentum[i] + (1 - this.alpha) * this.lr * grad[i];
_momentum.Add(DP);
NewPositions.Add(P - DP);
}
Curve _curve = new Curve(NewPositions);
return(_curve, _momentum);
}
static private void Evaluate(
Net net,
Loss lossFn,
Dataset dataset,
int[] indices
)
{
var numberOfExamples = dataset.Length;
var losses = new float[numberOfExamples];
var indicators = new float[numberOfExamples];
foreach (int i in indices)
{
var dataAndAnswer = dataset.GetItem(i);
var output = net.ForwardPass(dataAndAnswer.Item1);
var outputAndAnswer = new Tuple <float[], float[]>(output, dataAndAnswer.Item2);
losses[i] = lossFn.Calculate(outputAndAnswer).Average();
indicators[i] = Convert.ToSingle(
(MathF.Round(output[0]) == dataAndAnswer.Item2[0]) &&
(MathF.Round(output[1]) == dataAndAnswer.Item2[1])
);
Console.WriteLine($"true: {string.Join(", ", dataAndAnswer.Item2)}\tpredicted: {string.Join(", ", output)}");
}
Console.WriteLine(UNDERLINE);
Console.WriteLine($"accuracy: {indicators.Average()}\tmean loss: {losses.Average()}");
}
public float Train(TrainingSet trainingSet, float learningRate)
{
if (shuffle)
{
trainingSet.Shuffle();
}
var lastLayer = Layers[Layers.Length - 1];
var outputs = lastLayer.Outputs;
var errors = new Tensor(outputs.Dimensions);
float sumCost = 0f;
for (int i = 0, count = trainingSet.Count; i < count; i++)
{
errors.Clear();
(var inputs, var expected) = trainingSet[i];
var actuals = CalculateTrainingOutputs(inputs);
sumCost += Loss.CalculateTotal(actuals, expected);
for (int o = 0; o < actuals.Length; o++)
{
errors[o] = Loss.Derivative(actuals[o], expected[o]);
}
BackPropagate(errors, learningRate, momentumRate);
}
return(sumCost / trainingSet.Count);
}
public virtual Trainer Configure <T>(Model model, int?epochs, Core.fDataSet dataSet, double?learningRate, double?momentum, int?batchSize, double?beta1, double?beta2)
where T : CNN.Loss, new()
{
this.batchSize = batchSize;
List <Core.fData> dataList = (List <Core.fData>)dataSet.fData;
int index = 0, count;
while (index < dataList.Count())
{
count = (int)(dataList.Count() - index > batchSize ? batchSize : dataList.Count() - index);
Core.fDataSet data = new Core.fDataSet();
data.fData = dataList.GetRange(index, count);
batchImages.Add(data);
index += (int)batchSize;
}
base.Configure(model, epochs, batchImages[0]);
// 0. assert learningRate and momentum
if ((learningRate == null) || (momentum == null) || (beta1 == null) || (beta2 == null))
{
throw new Exception();
}
this.learningRate = learningRate;
this.momentum = momentum;
this.beta1 = beta1;
this.beta2 = beta2;
this.lossfunc = new T();
return(this);
}
void FillGridLosses()
{
Lost = new Loss();
grdPerdiasConsulta.DataSource = Lost.GetLossesList(null, null);
grdPerdiasConsulta.Refresh();
tabControl1.SelectTab(0);
}
/// <summary>Sets multi-class Support Vector Machine classifier</summary>
/// <remarks><para>Removes any existing classifier and sets mSVM with specified settings</para></remarks>
/// <param name="loss">Loss function to set</param>
/// <param name="model">Model to be used with SVM classifier</param>
/// <seealso cref="aceOperationSetExecutorBase"/>
public void aceOperation_setmSVM(
[Description("Loss function to set")] Loss loss = Loss.L2,
[Description("Model to be used with SVM classifier")] mSVMModels model = mSVMModels.linear)
{
data.classifierSettings.type = imbNLP.Toolkit.Classifiers.ClassifierType.multiClassSVM;
data.classifierSettings.lossFunctionForTraining = loss;
data.classifierSettings.svmModel = model;
}
public void SaveUnitTest_WhenLossObjectIdDoesntExist_ShouldBeFalse()
{
var loss = new Loss();
var p = new Product();
p.Load(12);
p.Id = 0;
Assert.IsFalse(loss.Save(p, 1));
}
public void SaveUnitTest_WhenLossObjectIsFilled_ShouldBeTrue()
{
var loss = new Loss();
var LostQuantity = 1;
var p = new Product();
p.Load(2);
loss.Comment = $"Adding a lost for {p.Description} x {LostQuantity}";
Assert.IsTrue(loss.Save(p, 1));
}
public virtual async Task <JsonResult> Update(Loss model, IList <IFormFile> files)
{
if (!ModelState.IsValid)
{
return(Json(new { IsSuccessful = false, Message = ModelState.GetModelError() }));
}
var update = await _LossSrv.UpdateAsync(model, _env.ContentRootPath, files);
return(Json(new { update.IsSuccessful, update.Message }));
}
private void CmdGuardarPerdida_Click(object sender, EventArgs e)
{
Lost = new Loss();
Lost.Comment = TxtComentarioPerdida.Text;
if (Lost.Save(prod, int.Parse(NumCantidadPerdida.Value.ToString())))
{
Program.DisplayInfoMessage("Perdida registrada");
Limpiar();
}
FillGridLosses();
}
public double Function(int[,] desired, List <double[]> actual)
{
double sum = 0;
for (int i = 0; i < actual.Count; i++)
{
sum += Loss.Entropy(desired.GetRow(i), actual[i]).Sum();
}
return(1.0 / actual.Count * sum);
}
public bool IsReliable()
{
return(((Micro < 0.60 || Micro > -0.50) &&
(Macro < 0.70 || Macro > -0.55) &&
(Loss < 2 || Loss > -1.5d) &&
(Reduction < 2 || Reduction > -2)) ||
(Micro.IsZero() &&
Macro.IsZero() &&
Loss.IsZero() &&
Reduction.IsZero()));
}
/*
* C=−1/n*∑x∑j[yjlnaLj+(1−yj)ln(1−aLj)].
*/
public double Function(int[,] desired, double[,] actual)
{
double sum = 0;
for (int i = 0; i < actual.GetLength(0); i++)
{
sum += Loss.Entropy(desired.GetRow(i), actual.GetRow(i)).Sum();
}
return(1.0 / actual.GetLength(0) * sum);
}
public override string ToString()
{
StringBuilder b = new StringBuilder();
b.AppendLine("-- Layer Result --");
b.AppendLine(Layer.ToString());
b.AppendLine(Loss.ToString("Loss"));
b.AppendLine(Deltas.ToString());
return(b.ToString());
}
public void Create(Loss loss_function, int input_size, float learning_rate = 0.01f)
{
this.loss_function = loss_function;
this.learning_rate = learning_rate;
foreach (var layer in layer_list)
{
if (!layer.isInitialized)
{
layer.initialize(input_size);
}
}
}
static void WriteLosses(IOptimizer optimizer, Variable globalSteps, Loss losses)
{
// tf v1 does not actually export summary.experimental.set_step
context.context_().summary_step = globalSteps;
void Scalar(string name, IGraphNodeBase value)
=> summary_ops_v2.scalar(name, value, step: globalSteps);
Scalar("lr", optimizer.DynamicGet <Variable>("lr"));
Scalar("loss/total_loss", losses.GIUO + losses.Conf + losses.Prob);
Scalar("loss/giou_loss", losses.GIUO);
Scalar("loss/conf_loss", losses.Conf);
Scalar("loss/prob_loss", losses.Prob);
}
private SolverType GetSolverType(Norm norm, Loss loss, bool dual, Multiclass multiclass)
{
if (multiclass == Multiclass.CrammerSinger)
{
return(SolverType.getById(SolverType.MCSVM_CS));
}
if (multiclass != Multiclass.Ovr)
{
throw new ArgumentException("Invalid multiclass value");
}
if (norm == Norm.L2 && loss == Loss.LogisticRegression && !dual)
{
return(SolverType.getById(SolverType.L2R_LR));
}
if (norm == Norm.L2 && loss == Loss.L2 && dual)
{
return(SolverType.getById(SolverType.L2R_L2LOSS_SVC_DUAL));
}
if (norm == Norm.L2 && loss == Loss.L2 && !dual)
{
return(SolverType.getById(SolverType.L2R_L2LOSS_SVC));
}
if (norm == Norm.L2 && loss == Loss.L1 && dual)
{
return(SolverType.getById(SolverType.L2R_L1LOSS_SVC_DUAL));
}
if (norm == Norm.L1 && loss == Loss.L2 && !dual)
{
return(SolverType.getById(SolverType.L1R_L2LOSS_SVC));
}
if (norm == Norm.L1 && loss == Loss.LogisticRegression && !dual)
{
return(SolverType.getById(SolverType.L1R_LR));
}
if (norm == Norm.L2 && loss == Loss.LogisticRegression && dual)
{
return(SolverType.getById(SolverType.L2R_LR_DUAL));
}
throw new ArgumentException("Given combination of penalty, loss, dual params is not supported");
}
public void SaveUnitTest_WhenSaveALost_ProductQuantityGetsReduced()
{
var LostQuantity = 1;
var TestProductID = 2;
var loss = new Loss();
var p = new Product();
p.Load(TestProductID);
var expectecResult = p.Quantity - LostQuantity;
loss.Comment = $"Testing Product loss | {p.Description} x {LostQuantity}";
loss.Save(p, LostQuantity);
p.Load(TestProductID);
Assert.AreEqual(expectecResult, p.Quantity);
}
public async Task <IResponse <Loss> > AdminUpdateAsync(Loss model, string root, IList <IFormFile> files)
{
var Loss = await _LossRepo.FirstOrDefaultAsync(conditions : x => x.LossId == model.LossId, new List <Expression <Func <Loss, object> > > {
i => i.User
});
if (Loss == null)
{
return new Response <Loss> {
Message = ServiceMessage.RecordNotExist
}
}
;
Loss.Status = model.Status;
Loss.RelativeId = model.RelativeId;
Loss.LossType = model.LossType;
Loss.LossDateSh = model.LossDateSh;
Loss.LossDateMi = PersianDateTime.Parse(model.LossDateSh).ToDateTime();
//Loss.PatientName = model.PatientName;
Loss.Cost = model.Cost;
Loss.Description = model.Description;
_LossRepo.Update(Loss);
var getAssets = await _LossAssetSrv.SaveRange(root, model.UserId, files);
if (!getAssets.IsSuccessful)
{
return new Response <Loss> {
Message = getAssets.Message
}
}
;
foreach (var item in getAssets.Result)
{
item.LossId = Loss.LossId;
}
await _appUow.LossAssetRepo.AddRangeAsync(getAssets.Result);
var updateResult = await _appUow.ElkSaveChangesAsync();
if (!updateResult.IsSuccessful)
{
_LossAssetSrv.DeleteRange(getAssets.Result);
}
return(new Response <Loss> {
Result = Loss, IsSuccessful = updateResult.IsSuccessful, Message = updateResult.Message
});
}
public float Test(TrainingSet validationSet)
{
float sumCost = 0f;
for (int i = 0, count = validationSet.Count; i < count; i++)
{
var inputs = validationSet[i].Item1;
var expected = validationSet[i].Item2;
var actuals = CalculateOutputs(inputs);
sumCost += Loss.CalculateTotal(actuals, expected);
}
return(sumCost / validationSet.Count);
}
public List <Loss> GetLosesToPersonalArea(Person person)
{
SqlCommand cmd = ConnectSql(string.Format("Select * From Loss Where LoseID = '{0}'", person.PersonID));
SqlDataReader reader = cmd.ExecuteReader();
List <Loss> resultLoss = new List <Loss>();
Loss loss = new Loss();
while (reader.Read())
{
resultLoss.Add(loss.Initialization(reader));
}
connection.DisConnectSql();
int x = resultLoss.Count();
return(resultLoss);
}
public virtual Trainer Configure <T>(Model model, int?epochs, fDataSet dataSet, double?learningRate, double?momentum)
where T : CNN.Loss, new()
{
base.Configure(model, epochs, dataSet);
// 0. assert learningRate and momentum
if ((learningRate == null) || (momentum == null))
{
throw new Exception();
}
this.learningRate = learningRate;
this.momentum = momentum;
this.lossfunc = new T();
return(this);
}
public IActionResult AddNewLoss(Loss newLoss)
{
bool result = false;
bool inventoryResult = inventoryDAO.DebitInventory(newLoss.inventoryId, newLoss.amountLost);
if (inventoryResult)
{
result = lossDAO.RecordNewLoss(newLoss);
}
if (result)
{
return(Created("", result));
}
else
{
return(BadRequest());
}
}
public int SaveOnLost(List <Loss> loss)
{
int sellCount = loss.Count;
int count = 0;
foreach (Loss items in loss)
{
Loss lossed = new Loss();
lossed.ItemId = items.ItemId;
lossed.CompanyId = items.CompanyId;
lossed.Quantity = items.Quantity;
lossed.Price = items.Price;
lossed.Discount = items.Discount;
lossed.Date = items.Date;
lossed.ActionDate = items.ActionDate;
lossed.ActionType = items.ActionType;
lossed.ActionBy = items.ActionBy;
Context.Losses.Add(lossed);
int rowsAffected = Context.SaveChanges();
Item item = Context.Items.Where(i => i.Id == lossed.ItemId).FirstOrDefault();
item.Quantity = item.Quantity - lossed.Quantity;
Context.Items.AddOrUpdate(item);
int rowsAffected2 = Context.SaveChanges();
if (rowsAffected > 0 && rowsAffected2 > 0)
{
count++;
}
}
if (count == sellCount)
{
return(1);
}
else
{
return(0);
}
}
static void Test(
Net net,
Loss lossFn,
Dataset dataset
)
{
Console.WriteLine(STARLINE);
Console.WriteLine("TESTING");
Console.WriteLine(UNDERLINE);
Evaluate(
net: net,
lossFn: lossFn,
dataset: dataset,
indices: Enumerable.Range(0, dataset.Length).ToArray()
);
Console.WriteLine("\nFINISHED");
Console.WriteLine(STARLINE);
}
public string ChangeLossStatus(Loss _loss)
{
SqlCommand cmd = ConnectSql(string.Format("UPDATE Loss SET StatusCode = '{0}' Where LossCode = '{1}'", _loss.StatusCode, _loss.LossCode));
try
{
cmd.Parameters.AddWithValue("@StatusCode", _loss.StatusCode);
cmd.Parameters.AddWithValue("@LossCode", _loss.LossCode);
cmd.ExecuteNonQuery();
return(_loss.LossCode + "Data updated!");
}
catch (Exception ex)
{
return(ex.Message);
}
finally
{
connection.DisConnectSql();
}
}