Update README.md

README.md

@@ -23,12 +23,12 @@ LOTUS offers a number of semantic operators in a Pandas-like API, some of which
 
 | Operator   | Description                                     |
 |------------|-------------------------------------------------|
-| sem_map    | Map each row of the dataframe using a natural language projection                   |
-| sem_filter | Keep rows that match the natural language predicate                |
-| sem_agg    | Performs a natural language aggregation across all rows of a column (e.g. for summarization)           |
-| sem_topk   | Order the dataframe by some natural langauge sorting criteria            |
-| sem_join   | Join two dataframes based on a natural language predicate        |
-| sem_dedup  | Deduplicate rows of a dataframe based on semantic similarity           |
+| sem_map    | Map each record using a natural language projection                   |
+| sem_filter | Keep records that match the natural language predicate                |
+| sem_agg    | Performs a natural language aggregation across all records (e.g. for summarization)           |
+| sem_topk   | Order the records by some natural langauge sorting criteria            |
+| sem_join   | Join two datasets based on a natural language predicate        |
+| sem_dedup  | Deduplicate records based on semantic similarity           |
 | sem_index  | Create a semantic similarity index over a text column           |
 | sem_search | Perform top-k search the over a text column          |