In the overall experimental setup, classification, ranking,  and evaluationn are kept constant. Following \cite{balog2013multi} settings, we use WEKA's\footnote{http://www.cs.waikato.ac.nz/∼ml/weka/} Classification Random Forest. However, we use fewer numbers of features which we found to be more effective. We determined the effectiveness of the features by running the classification algorithm using the fewer features we implemented and their features. Our feature implementations achieved better results.  The total numbers of features we used are 13 and are listed below. 

\paragraph{Google's Cross Lingual Dictionary (GCLD)}

This is a mapping of strings to Wikipedia concepts and vice versa

\cite{spitkovsky2012cross}. 

(1) the probability with which a string is used as anchor text to

a Wikipedia entity 

\paragraph{jac} 

  Jaccard similarity between the document and the entity's Wikipedia page

\paragraph{cos} 

  Cosine similarity between the document and the entity's Wikipedia page

\paragraph{kl} 

  KL-divergence between the document and the entity's Wikipedia page

  \paragraph{PPR}

For each entity, we computed a PPR score from

a Wikipedia snapshot  and we kept the top 100  entities along

with the corresponding scores.

\paragraph{Surface Form (sForm)}

For each Wikipedia entity, we gathered DBpedia name variants. These

are redirects, labels and names.

\paragraph{Context (contxL, contxR)}

From the WikiLink corpus \cite{singh12:wiki-links}, we collected

all left and right contexts (2 sentences left and 2 sentences

right) and generated n-grams between uni-grams and quadro-grams

for each left and right context. 

Finally,  we select  the 5 most frequent n-grams for each context.

\paragraph{FirstPos}

  Term position of the first occurrence of the target entity in the document 

  body 

\paragraph{LastPos }

  Term position of the last occurrence of the target entity in the document body

\paragraph{LengthBody} Term count of document body

\paragraph{LengthAnchor} Term count  of document anchor

\paragraph{FirstPosNorm} 

  Term position of the first occurrence of the target entity in the document 

  body normalised by the document length 

\paragraph{MentionsBody }

  No. of occurrences of the target entity in the  document body

  Features we use incude similarity features such as cosine and jaccard, document-entity features such as docuemnt mentions entity in title, in body, frequency  of mention, etc., and related entity features such as page rank scores. In total we sue  The features consist of similarity measures between the KB entiities profile text, document-entity features such as