public async System.Threading.Tasks.Task <string> SuggestEntitySentimentAsync(Models.Sentiment doc)
{
Dictionary <string, double> values = new Dictionary <string, double>();
// we need to call the sentiment web service here. the location should be configured externally
var url = ConfigurationManager.AppSettings["SentimentServiceUrl"];
using (var client = new HttpClient())
{
//set up client
client.BaseAddress = new Uri(url);
client.DefaultRequestHeaders.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
client.Timeout = TimeSpan.FromMinutes(10);
var nvc = new List <KeyValuePair <string, string> >();
var texts = doc.RawText;
var annotators = doc.Annotators;
var mode = doc.Mode;
nvc.Add(new KeyValuePair <string, string>("texts", texts));
nvc.Add(new KeyValuePair <string, string>("preset", "all"));
nvc.Add(new KeyValuePair <string, string>("mode", mode));
// we need to eventually pass in which annotator we are using
string fullUrl = url + "/" + annotators;
var req = new HttpRequestMessage(HttpMethod.Post, fullUrl)
{
Content = new FormUrlEncodedContent(nvc)
};
var response = await client.SendAsync(req);
if (!response.IsSuccessStatusCode)
{
// Nothing for this case
}
else if ("charlstm" == annotators)
{
var result = await response.Content.ReadAsStringAsync();
values = JsonConvert.DeserializeObject <Dictionary <string, double> >(result);
}
}
// now once we have values, we will return them to the annotation view.
return(JsonConvert.SerializeObject(values));
}
public async System.Threading.Tasks.Task <string> SuggestSentimentAsync(Models.Sentiment doc)
{
List <double> values = new List <double>();
// we need to call the sentiment web service here. the location should be configured externally
var url = ConfigurationManager.AppSettings["SentimentServiceUrl"];
using (var client = new HttpClient()) {
//set up client
client.BaseAddress = new Uri(url);
client.DefaultRequestHeaders.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
client.Timeout = TimeSpan.FromMinutes(10);
var nvc = new List <KeyValuePair <string, string> >();
var texts = doc.RawText;
var annotators = doc.Annotators;
nvc.Add(new KeyValuePair <string, string>("texts", texts));
if (annotators.StartsWith("composite"))
{
// We need to adjust this as necessary for the correct variety of composite
if ("composite_c" == annotators)
{
nvc.Add(new KeyValuePair <string, string>("preset", "no_lstm"));
}
else if ("composite_b" == annotators)
{
nvc.Add(new KeyValuePair <string, string>("preset", "rule_based"));
}
else
{
// this is really composite_a, but it should also serve as the catch-all
nvc.Add(new KeyValuePair <string, string>("preset", "all"));
}
annotators = "composite";
}
else
{
nvc.Add(new KeyValuePair <string, string>("preset", "all"));
}
// we need to eventually pass in which annotator we are using
string fullUrl = url + "/" + annotators;
var req = new HttpRequestMessage(HttpMethod.Post, fullUrl)
{
Content = new FormUrlEncodedContent(nvc)
};
var response = await client.SendAsync(req);
if (!response.IsSuccessStatusCode)
{
values.Add(System.Double.NaN);
}
else if ("finance" == annotators)
{
// We get back a pair, positive and negative. We could try to report both back or we could try to generate a single score
// Right now we choose option 2
var final_value = 0.0;
var result = await response.Content.ReadAsStringAsync();
var parts = result.Split('\t');
final_value += double.Parse(parts[0]) * 0.05 - double.Parse(parts[1]) * 0.05;
if (final_value > 1.0)
{
final_value = 1.0;
}
else if (final_value < -1.0)
{
final_value = -1.0;
}
values.Add(final_value);
}
else if ("google" == annotators || "stanford" == annotators || "aylien" == annotators || "charlstm" == annotators ||
"composite_a" == annotators || "composite_b" == annotators || "composite_c" == annotators)
{
var result = await response.Content.ReadAsStringAsync();
List <double> valueList = JsonConvert.DeserializeObject <List <double> >(result);
values.Add(valueList[0]);
}
else
{
var result = await response.Content.ReadAsStringAsync();
values.Add(double.Parse(result));
}
}
// now once we have values, we will return them to the annotation view.
return(JsonConvert.SerializeObject(values));
}
