public async Task <List <Listing> > SearchListings(int resumeId, string phrase, string location, bool isFullTime)
{
//load resumes
var resumeEntity = uow.ResumeRepository.GetById(resumeId);
if (resumeEntity == null)
{
throw new ArgumentNullException("Resume was null");
}
var listings = await listingService.SearchListings(phrase, location, isFullTime);
var resume = new ResumeFile(resumeEntity);
return(ranker.Rank(resume, listings));
}
// Call Rank() on the given IRanker then transform its result into a message which is
// informative to the end user.
public static (string strong, string normal) RankAndHumanify(IRanker ranker, string query)
{
string rankings;
try {
rankings = ranker.Rank(query, TARGET_SITE);
} catch (ExtractionException ex) {
return("Error: ", ex.Message);
}
if (rankings == "0")
{
return("Result: ", $"The site '{TARGET_SITE}' could not be found in the search results.");
}
string inflected_index = rankings.Split(' ').Length == 1 ? "index" : "indices";
return("Result: ",
$"The site '{TARGET_SITE}' was found at the following {inflected_index} (where 1 represents the first search result): {rankings}.");
}
public IEnumerable <SearchResult> Search(string query)
{
if (query == null || query.Trim() == "")
{
yield break;
}
query = query.Trim();
var session = SessionId++;
mLogger.Log(nameof(SearchEngine), session + "\tSearching: " + query);
var time = DateTime.Now;
var parsedQuery = mQueryParser.Parse(query);
mLogger.Log(nameof(SearchEngine), session + "\tParsed query " + (DateTime.Now - time).TotalMilliseconds);
time = DateTime.Now;
var urlFileIds = mRetriever.Retrieve(parsedQuery.Expression).ToList();
var count = urlFileIds.Count;
mLogger.Log(nameof(SearchEngine), session + "\tRetrieved docs " + (DateTime.Now - time).TotalMilliseconds);
time = DateTime.Now;
var scores = mRanker.Rank(urlFileIds, parsedQuery.Words).ToList();
mLogger.Log(nameof(SearchEngine), session + "\tRanked docs 1 " + (DateTime.Now - time).TotalMilliseconds);
time = DateTime.Now;
var results = new List <SearchResult>();
for (int i = 0; i < count; ++i)
{
results.Add(new SearchResult
{
UrlFileId = urlFileIds[i],
Score = scores[i],
});
}
results = results.OrderByDescending(o => o.Score.Value).ToList();
for (int i = 0; i < (PageSize - 1 + count) / PageSize; ++i)
{
int subResultsLength = Math.Min(PageSize, count - PageSize * i);
var subResults = results.GetRange(i * PageSize, subResultsLength);
var proScores = mProRanker.Rank(subResults.Select(o => o.UrlFileId), parsedQuery.Words).ToList();
for (int j = 0; j < subResultsLength; ++j)
{
subResults[j].ProScore = proScores[j];
subResults[j].WordPositions = proScores[j].WordPositions?.Where(o => o.Position != uint.MaxValue);
}
mLogger.Log(nameof(SearchEngine), session + "\tRanked docs 2 " + (DateTime.Now - time).TotalMilliseconds);
time = DateTime.Now;
foreach (var proResult in subResults.OrderByDescending(o => o.ProScore.Value))
{
yield return(proResult);
}
}
}