System Summary and Timing
  Organization Name: University of Neuchatel (Switzerland)
  List of Run ID's: UniNE7, UniNE8, UniNE9, UniNE0

  Construction of Indices, Knowledge Bases, and other Data Structures 

    Methods Used to build Data Structures 

    - Length (in words) of the stopword list:  571  (SMART)  
    - Stemming Algorithm:      yes  Lovins (SMART)            
    - Term Weighting:  yes 
    -  Phrase Discovery?:              
    -  Tokenizer?:              

    Statistics on Data Structures built from TREC Text

    - Inverted index           
      - Run ID:  UniNE7, UniNE8, UniNE9, UniNE0 
      - Total Storage (in MB):   179 (collection fusion) for UniNE0 and UniNE9
        3 * 179 (Data fusion) for UniNE7 and UniNE8
      - Total Computer Time to Build (in hours):  2.6 for UniNE0 and UniNE9 
        3 *  2.6 for UniNE7 and UniNE8
      - Automatic Process? (If not, number of manual hours): yes 
      - Only Single Terms Used?:  yes
    - Clusters           
    - N-grams, Suffix arrays, Signature Files           
    - Knowledge Bases            
      - Use of Manual Labor                  
    - Special Routing Structures           
    - Other Data Structures built from TREC text           

  Query construction

    Automatically Built Queries (Ad-Hoc)

    - Topic Fields Used:  Desc only for UniNE7 and UniNE0 
                          Desc & Narr for UniNE8 and UniNE9
    - Average Computer Time to Build Query (in cpu seconds):   0.3 
    - Method used in Query Construction          
      - Term Weighting (weights based on terms in topics)?:  yes
      - Tokenizer?:                 
      - Expansion of Queries using Previously-Constructed Data Structure?:              
  Searching

    Search Times

      - Run ID:  UniNE7, UniNE8, UniNE9, UniNE0 
      - Computer Time to Search (Average per Query, in CPU seconds): 15.5

    Machine Searching Methods

      - Vector Space Model?:  yes 
      - Probabilistic Model?:  yes 

    Factors in Ranking

      - Term Frequency?:  yes 
      - Inverse Document Frequency?:  yes 
      - Document Length?:  yes 

    Machine Information

    - Machine Type for TREC Experiment:  SUN SPARCstation 10 model 51
    - Was the Machine Dedicated or Shared:  shared
    - Amount of Hard Disk Storage (in MB):  6,144 MB
    - Amount of RAM (in MB): 128 MB 
    - Clock Rate of CPU (in MHz):  50 MHz

    System Comparisons 

    - Amount of "Software Engineering" which went into the Development of the 
System: SMART + part of code in Smalltalk-80 
    - Given appropriate resources            
      - Could your system run faster?:  yes, of course (both for SMART and 
Smalltalk-80)
      - By how much (estimate)?:  the improvement factor is unknown